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% Copyright © 2006 by ACcESS MNRF |
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% \url{http://www.access.edu.au |
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% Primary Business: Queensland, Australia. |
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% Licensed under the Open Software License version 3.0 |
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% http://www.opensource.org/license/osl-3.0.php |
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\chapter{The module \pyvisi} |
\chapter{The module \pyvisi} |
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\label{PYVISI CHAP} |
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\declaremodule{extension}{pyvisi} |
\declaremodule{extension}{pyvisi} |
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\modulesynopsis{visualization interface} |
\modulesynopsis{Python visualization interface} |
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\pyvisi provides an easy to use interface to the \VTK visualization |
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tool. \pyvisi provides the following modules: |
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\begin{itemize} |
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\item \Scene: Shows a scene in which components are to be displayed. |
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\item \Image: Shows an image. |
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\item \Text: Shows some 2D text. |
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\item \DataCollector: Deals with data for visualization. |
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\item \Camera: Controls the camera manipulation. |
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\item \Light: Controls the light manipulation. |
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\item \Map: Shows a scalar field by color on the domain surface. |
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\item \MapOnPlane: Shows a scalar field by color on a given plane. |
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\item \MapOnClip: Shows a scalar field by color on a given clip. |
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\item \MapOnScalarClip: Shows a scalar field by color on a give scalar clip. |
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\item \Arrows: Shows a vector field by arrows. |
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\item \ArrowsOnPlane: Shows a vector field by arrows on a given plane. |
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\item \ArrowsOnClip: Shows a vector field by arrows on a given clip. |
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\item \IsoSurface: Shows a scalar field for a given value by |
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an isosurface. |
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\item \IsoSurfaceOnPlane: Shows a scalar field for a given value by |
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an isosurfaceon a given plane. |
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\item \IsoSurfaceOnClip: Shows a scalar field for a given vlaue by |
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an isosurface on a given clip. |
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\item \Contour: Shows a scalar field by contour surfaces. |
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\item \ContourOnPlane: Shows a scalar field by contour surfaces on |
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a given plane. |
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\item \ContourOnClip: Shows a scalar field by contour surfaces on |
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a given clip. |
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\item \TensorC: Shows a tensor field by ellipsoids. |
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\item \TensorOnPlane: Shows a tensor field by ellipsoids on |
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a given plane. |
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\item \TensorOnClip: Shows a tensor field by ellipsoids on a given clip. |
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\item \StreamLines: Shows the path of particles in a vector field. |
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\item \Carpet: Shows a scalar field as plane deformated along |
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the plane normal. |
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\item \Position: Defines the x,y and z coordinates rendered object. |
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\item \Transform: Defines the orientation of rendered object. |
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\item \Style: Defines the style of text. |
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\item \BlueToRed: Defines a map spectrum from blue to red. |
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\item \RedToBlue: Defines a map spectrum from red to blue. |
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\item \Plane: Defines the cutting/clipping of rendered objects. |
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\end{itemize} |
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\section{\Scene class} |
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\begin{classdesc}{Scene}{renderer, x_size = 500, y_size = 500} |
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A \Scene object creates a window onto which objects are to be displayed. |
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\end{classdesc} |
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The following are the methods available: |
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\begin{methoddesc}[Scene]{saveImage}{image_name} |
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Save the rendered object as an image off-screen. |
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\end{methoddesc} |
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\begin{methoddesc}[Scene]{render}{} |
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Render the object on-screen. |
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\end{methoddesc} |
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The following is a sample code using the \Scene class: |
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\verbatiminput{../examples/driverscene.py} |
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\section{\Image class} |
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\begin{classdesc}{Image}{scene, format} |
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An \Image object shows an image. |
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\end{classdesc} |
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The following is the method available: |
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\begin{methoddesc}[Image]{setFileName}{file_name} |
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Set the file name. |
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\end{methoddesc} |
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The following is a sample code using the \Image class. |
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\fig{fig:image.1} shows the corresponding output. |
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\verbatiminput{../examples/driverimage.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/Image} |
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\end{center} |
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\caption{Image} |
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\label{fig:image.1} |
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\end{figure} |
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\section{\Text class} |
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\begin{classdesc}{Text}{scene} |
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A \Text object shows 2D text. |
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\end{classdesc} |
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The following are the methods available: |
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\begin{methoddesc}[Text]{setText}{text} |
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Set the text. |
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\end{methoddesc} |
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\begin{methoddesc}[Text]{setPosition}{x_coor, y_coor} |
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Set the display position of the text. |
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\end{methoddesc} |
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\begin{methoddesc}[Text]{setStyle}{style} |
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Set the style of the text. |
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\end{methoddesc} |
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The following is a sample code using the \Text class. |
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\fig{fig:text.1} shows the corresponding output. |
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\verbatiminput{../examples/drivertext.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/Text} |
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\end{center} |
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\caption{2D text} |
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\label{fig:text.1} |
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\end{figure} |
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\section{\DataCollector class} |
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\begin{classdesc}{DataCollector}{scene, outline = True, cube_axes = False} |
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A \DataCollector object deals with the data for visualization. |
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\end{classdesc} |
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The following are the methods available: |
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\begin{methoddesc}[DataCollector]{setFileName}{file_name} |
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Set the file name from which data is to be read. |
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\end{methoddesc} |
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The following is a sample code using the \DataCollector class. |
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\fig{fig:datacollector.1} shows the corresponding output. |
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\verbatiminput{../examples/driverdatacollector.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/DataCollector} |
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\end{center} |
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\caption{Datacollector generating an outline with cube axes.} |
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\label{fig:datacollector.1} |
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\end{figure} |
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\section{\Camera class} |
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\begin{classdesc}{Camera}{scene, data_collector} |
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A \Camera object controls the camera's settings. |
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\end{classdesc} |
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The following are some of the methods available: |
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\begin{methoddesc}[Camera]{setFocalPoint}{position} |
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Set the focal point of the camera. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{setPosition}{position} |
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Set the position of the camera. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{azimuth}{angle} |
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Rotate the camera to the left and right. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{elevation}{angle} |
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Rotate the camera to the top and bottom. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{roll}{angle} |
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Roll the camera to the left and right. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{backView}{} |
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View the back of the rendered object. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{topView}{} |
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View the top of the rendered object. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{bottomView}{} |
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View the bottom of the rendered object. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{leftView}{} |
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View the left side of the rendered object. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{rightView}{} |
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View the right side of the rendered object. |
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\end{methoddesc} |
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\begin{methoddesc}[Camera]{isometricView}{} |
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View the isometric side of the rendered object. |
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\end{methoddesc} |
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The following is a sample code using the \Camera class. |
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\fig{fig:camera.1} shows the corresponding output. |
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\verbatiminput{../examples/drivercamera.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=30mm]{figures/Camera} |
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\end{center} |
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\caption{Camera manipulation} |
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\label{fig:camera.1} |
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\end{figure} |
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\section{\Light class} |
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\begin{classdesc}{Light}{scene, data_collector} |
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A \Light object controls the light's settings. |
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\end{classdesc} |
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The following are the methods available: |
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\begin{methoddesc}[Light]{setColor}{color} |
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Set the color of the light. |
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\end{methoddesc} |
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\begin{methoddesc}[Light]{setFocalPoint}{position} |
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Set the focal point of the light. |
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\end{methoddesc} |
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\begin{methoddesc}[Light]{setPosition}{position} |
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Set the position of the light. |
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\end{methoddesc} |
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\begin{methoddesc}[Light]{setIntensity}{intesity} |
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Set the intensity (brightness) of the light. |
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\end{methoddesc} |
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The following is a sample code using the \Light class. |
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\fig{fig:light.1} shows the corresponding output. |
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\verbatiminput{../examples/driverlight.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/Light} |
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\end{center} |
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\caption{Light} |
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\label{fig:light.1} |
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\end{figure} |
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\section{\Map class} |
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\begin{classdesc}{Map}{scene, data_collector, lut = None} |
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A \Map object shows a scalar field by color on the domain surface. |
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\end{classdesc} |
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The following is a sample code using the \Map class. |
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\fig{fig:map.1} shows the corresponding output. |
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\verbatiminput{../examples/drivermap.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/Map} |
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\end{center} |
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\caption{Surface map} |
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\label{fig:map.1} |
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\end{figure} |
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\section{\MapOnPlane class} |
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\begin{classdesc}{MapOnPlane}{scene, data_collector, transform, lut = None} |
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A \MapOnPlane object show a scalar field by color on a given plane. |
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\end{classdesc} |
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The following is a sample code using the \MapOnPlane class. |
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\fig{fig:maponplane.1} shows the corresponding output. |
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\verbatiminput{../examples/drivermaponplane.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/MapOnPlane} |
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\end{center} |
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\caption{Surface map on a plane} |
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\label{fig:maponplane.1} |
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\end{figure} |
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\section{\MapOnClip class} |
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\begin{classdesc}{MapOnClip}{scene, data_collector, transform, lut = None} |
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A \MapOnClip object show a scalar field by color on a given clip. |
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\end{classdesc} |
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The following is a sample code using the \MapOnClip class. |
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\fig{fig:maponclip.1} shows the corresponding output. |
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\verbatiminput{../examples/drivermaponclip.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/MapOnClip} |
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\end{center} |
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\caption{Surface map on a clip} |
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\label{fig:maponclip.1} |
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\end{figure} |
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\section{\MapOnScalarClip class} |
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\begin{classdesc}{MapOnScalarClip}{scene, data_collector, lut = None} |
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A \MapOnScalarClip object show a scalar field by color on a given scalar clip. |
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\end{classdesc} |
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The following is a sample code using the \MapOnScalarClip class. |
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\fig{fig:maponscalarclip.1} shows the corresponding output. |
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\verbatiminput{../examples/drivermaponscalarclip.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/MapOnScalarClip} |
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\end{center} |
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\caption{Surface map on a scalar clip} |
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\label{fig:maponscalarclip.1} |
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\end{figure} |
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\section{\Arrows class} |
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\begin{classdesc}{Arrows}{scene, data_collector, lut = None} |
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A \Arrows object shows a vector field by arrows. |
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\end{classdesc} |
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The following are the methods available: |
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\begin{methoddesc}[Arrows]{setVectorMode}{vector_mode} |
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Set the arrows vector mode. |
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\end{methoddesc} |
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\begin{methoddesc}[Arrows]{setScaleMode}{scale_mode} |
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Set the arrows scale mode. |
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\end{methoddesc} |
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\begin{methoddesc}[Arrows]{setScaleFactor}{scale_factor} |
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Set the arrows scale factor. |
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\end{methoddesc} |
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\begin{methoddesc}[Arrows]{setColorMode}{color_mode} |
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Set the arrows color mode. |
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\end{methoddesc} |
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The following is a sample code using the \Arrows class. |
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\fig{fig:arrows.1} shows the corresponding output. |
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\verbatiminput{../examples/driverarrows.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/Arrows} |
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\end{center} |
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\caption{Arrows} |
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\label{fig:arrows.1} |
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\end{figure} |
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\section{\ArrowsOnPlane class} |
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\begin{classdesc}{ArrowsOnPlane}{scene, data_collector, transform, lut = None} |
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A \ArrowsOnPlane object shows a vector field by arrows on a given plane. |
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\end{classdesc} |
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The following is a sample code using the \ArrowsOnPlane class. |
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\fig{fig:arrowsonplane.1} shows the corresponding output. |
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\verbatiminput{../examples/driverarrowsonplane.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/ArrowsOnPlane} |
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\end{center} |
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\caption{Arrows on a plane} |
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\label{fig:arrowsonplane.1} |
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\end{figure} |
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\section{\ArrowsOnClip class} |
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\begin{classdesc}{ArrowsOnClip}{scene, data_collector, transform, lut = None} |
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A \ArrowsOnClip object shows a vector field by arrows on a given clip. |
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\end{classdesc} |
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The following is a sample code using the \ArrowsOnClip class. |
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\fig{fig:arrowsonclip.1} shows the corresponding output. |
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\verbatiminput{../examples/driverarrowsonclip.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/ArrowsOnClip} |
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\end{center} |
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\caption{Arrows on a clip} |
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\label{fig:arrowsonclip.1} |
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\end{figure} |
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\section{\IsoSurface class} |
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\begin{classdesc}{IsoSurface}{scene, data_collector, lut = None} |
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An \IsoSurface object shows a scalar field for a given value by an isosurface. |
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\end{classdesc} |
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The following is the method available: |
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\begin{methoddesc}[IsoSurface]{setValue}{contour_number, value} |
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Set the contour number and value. |
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\end{methoddesc} |
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The following is a sample code using the \IsoSurface class. |
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\fig{fig:isosurface.1} shows the corresponding output. |
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\verbatiminput{../examples/driverisosurface.py} |
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\begin{figure}[ht] |
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\begin{center} |
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\includegraphics[width=40mm]{figures/IsoSurface} |
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\end{center} |
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\caption{IsoSurface} |
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\label{fig:isosurface.1} |
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\end{figure} |
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\section{\IsoSurfaceOnPlane class} |
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\begin{classdesc}{IsoSurfaceOnPlane}{scene, data_collector, transform, |
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lut = None} |
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An \IsoSurfaceOnPlane object shows a scalar field for a given value |
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by an isosurface on a given plane. |
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\end{classdesc} |
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The following is a sample code using the \IsoSurfaceOnPlane class. |
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\fig{fig:isosurfaceonplane.1} shows the corresponding output. |
| 406 |
|
\verbatiminput{../examples/driverisosurfaceonplane.py} |
| 407 |
|
|
| 408 |
|
\begin{figure}[ht] |
| 409 |
|
\begin{center} |
| 410 |
|
\includegraphics[width=40mm]{figures/IsoSurfaceOnPlane} |
| 411 |
|
\end{center} |
| 412 |
|
\caption{IsoSurface on a plane} |
| 413 |
|
\label{fig:isosurfaceonplane.1} |
| 414 |
|
\end{figure} |
| 415 |
|
|
| 416 |
|
\section{\IsoSurfaceOnClip class} |
| 417 |
|
\begin{classdesc}{IsoSurfaceOnClip}{scene, data_collector, transform, |
| 418 |
|
lut = None} |
| 419 |
|
An \IsoSurfaceOnClip object shows a scalar field for a given value |
| 420 |
|
by an isosurface on a given clip. |
| 421 |
|
\end{classdesc} |
| 422 |
|
|
| 423 |
|
The following is a sample code using the \IsoSurfaceOnClip class. |
| 424 |
|
\fig{fig:isosurfaceonclip.1} shows the corresponding output. |
| 425 |
|
\verbatiminput{../examples/driverisosurfaceonclip.py} |
| 426 |
|
|
| 427 |
|
\begin{figure}[ht] |
| 428 |
|
\begin{center} |
| 429 |
|
\includegraphics[width=40mm]{figures/IsoSurfaceOnClip} |
| 430 |
|
\end{center} |
| 431 |
|
\caption{IsoSurface on a clip} |
| 432 |
|
\label{fig:isosurfaceonclip.1} |
| 433 |
|
\end{figure} |
| 434 |
|
|
| 435 |
|
\section{\Contour class} |
| 436 |
|
\begin{classdesc}{Contour}{scene, data_collector, lut = None} |
| 437 |
|
A \Contour object shows a scalar field contour surfaces. |
| 438 |
|
\end{classdesc} |
| 439 |
|
|
| 440 |
|
The following is the method available: |
| 441 |
|
\begin{methoddesc}[Contour]{generateValues}{number_contours, min_range, |
| 442 |
|
max_range} |
| 443 |
|
Generate the specified number of contours within the specified range. |
| 444 |
|
\end{methoddesc} |
| 445 |
|
|
| 446 |
|
The following is a sample code using the \Contour class. |
| 447 |
|
\fig{fig:contour.1} shows the corresponding output. |
| 448 |
|
\verbatiminput{../examples/drivercontour.py} |
| 449 |
|
|
| 450 |
|
\begin{figure}[ht] |
| 451 |
|
\begin{center} |
| 452 |
|
\includegraphics[width=40mm]{figures/Contour} |
| 453 |
|
\end{center} |
| 454 |
|
\caption{Contour} |
| 455 |
|
\label{fig:contour.1} |
| 456 |
|
\end{figure} |
| 457 |
|
|
| 458 |
|
\section{\ContourOnPlane class} |
| 459 |
|
\begin{classdesc}{ContourOnPlane}{scene, data_collector, transform, lut = None} |
| 460 |
|
A \ContourOnPlane object shows a scalar field contour surfaces on a given plane. |
| 461 |
|
\end{classdesc} |
| 462 |
|
|
| 463 |
|
The following is a sample code using the \ContourOnPlane class. |
| 464 |
|
\fig{fig:contouronplane.1} shows the corresponding output. |
| 465 |
|
\verbatiminput{../examples/drivercontouronplane.py} |
| 466 |
|
|
| 467 |
|
\begin{figure}[ht] |
| 468 |
|
\begin{center} |
| 469 |
|
\includegraphics[width=40mm]{figures/ContourOnPlane} |
| 470 |
|
\end{center} |
| 471 |
|
\caption{Contour on a plane} |
| 472 |
|
\label{fig:contouronplane.1} |
| 473 |
|
\end{figure} |
| 474 |
|
|
| 475 |
|
\section{\ContourOnClip class} |
| 476 |
|
\begin{classdesc}{ContourOnClip}{scene, data_collector, transform, lut = None} |
| 477 |
|
A \ContourOnClip object shows a scalar field contour surfaces on a given clip. |
| 478 |
|
\end{classdesc} |
| 479 |
|
|
| 480 |
|
The following is a sample code using the \ContourOnClip class. |
| 481 |
|
\fig{fig:contouronclip.1} shows the corresponding output. |
| 482 |
|
\verbatiminput{../examples/drivercontouronclip.py} |
| 483 |
|
|
| 484 |
|
\begin{figure}[ht] |
| 485 |
|
\begin{center} |
| 486 |
|
\includegraphics[width=40mm]{figures/ContourOnClip} |
| 487 |
|
\end{center} |
| 488 |
|
\caption{Contour on a clip} |
| 489 |
|
\label{fig:contouronclip.1} |
| 490 |
|
\end{figure} |
| 491 |
|
|
| 492 |
|
\section{\TensorC class} |
| 493 |
|
\begin{classdesc}{Tensor}{scene, data_collector, lut = None} |
| 494 |
|
A \TensorC object shows a tensor field by ellipsoids. |
| 495 |
|
\end{classdesc} |
| 496 |
|
|
| 497 |
|
The following are the methods available: |
| 498 |
|
\begin{methoddesc}[Tensor]{setThetaResolution}{resolution} |
| 499 |
|
Set the number of points in the longitude direction. |
| 500 |
|
\end{methoddesc} |
| 501 |
|
|
| 502 |
|
\begin{methoddesc}[Tensor]{setPhiResolution}{resolution} |
| 503 |
|
Set the number of points in the latitude direction. |
| 504 |
|
\end{methoddesc} |
| 505 |
|
|
| 506 |
|
\begin{methoddesc}[Tensor]{setScaleFactor}{scale_factor} |
| 507 |
|
Set the tensor scale factor. |
| 508 |
|
\end{methoddesc} |
| 509 |
|
|
| 510 |
|
\begin{methoddesc}[Tensor]{setMaxScaleFactor}{max_scale_factor} |
| 511 |
|
Set the maximum allowable scale factor. |
| 512 |
|
\end{methoddesc} |
| 513 |
|
|
| 514 |
|
The following is a sample code using the \TensorC class. |
| 515 |
|
\fig{fig:tensor.1} shows the corresponding output. |
| 516 |
|
\verbatiminput{../examples/drivertensor.py} |
| 517 |
|
|
| 518 |
|
\begin{figure}[ht] |
| 519 |
|
\begin{center} |
| 520 |
|
\includegraphics[width=40mm]{figures/Tensor} |
| 521 |
|
\end{center} |
| 522 |
|
\caption{Tensor} |
| 523 |
|
\label{fig:tensor.1} |
| 524 |
|
\end{figure} |
| 525 |
|
|
| 526 |
|
\section{\TensorOnPlane class} |
| 527 |
|
\begin{classdesc}{TensorOnPlane}{scene, data_collector, transform, lut = None} |
| 528 |
|
A \TensorOnPlane object shows a tensor field by ellipsoids on a given plane. |
| 529 |
|
\end{classdesc} |
| 530 |
|
|
| 531 |
|
The following is a sample code using the \TensorOnPlane class. |
| 532 |
|
\fig{fig:tensoronplane.1} shows the corresponding output. |
| 533 |
|
\verbatiminput{../examples/drivertensoronplane.py} |
| 534 |
|
|
| 535 |
|
\begin{figure}[ht] |
| 536 |
|
\begin{center} |
| 537 |
|
\includegraphics[width=40mm]{figures/TensorOnPlane} |
| 538 |
|
\end{center} |
| 539 |
|
\caption{Tensor on a plane} |
| 540 |
|
\label{fig:tensoronplane.1} |
| 541 |
|
\end{figure} |
| 542 |
|
|
| 543 |
|
\section{\TensorOnClip class} |
| 544 |
|
\begin{classdesc}{TensorOnClip}{scene, data_collector, transform, lut = None} |
| 545 |
|
A \TensorOnClip object shows a tensor field by ellipsoids on a given clip. |
| 546 |
|
\end{classdesc} |
| 547 |
|
|
| 548 |
|
The following is a sample code using the \TensorOnClip class. |
| 549 |
|
\fig{fig:tensoronclip.1} shows the corresponding output. |
| 550 |
|
\verbatiminput{../examples/drivertensoronclip.py} |
| 551 |
|
|
| 552 |
|
\begin{figure}[ht] |
| 553 |
|
\begin{center} |
| 554 |
|
\includegraphics[width=40mm]{figures/TensorOnClip} |
| 555 |
|
\end{center} |
| 556 |
|
\caption{Tensor on a clip} |
| 557 |
|
\label{fig:tensoronclip.1} |
| 558 |
|
\end{figure} |
| 559 |
|
|
| 560 |
|
\section{\StreamLines class} |
| 561 |
|
\begin{classdesc}{StreamLines}{scene, data_collector, lut = None} |
| 562 |
|
A \StreamLines object show the path of particles (within a specified cloud |
| 563 |
|
of points) in a vector field. |
| 564 |
|
\end{classdesc} |
| 565 |
|
|
| 566 |
|
The following are the methods available: |
| 567 |
|
\begin{methoddesc}[StreamLines]{setCloudRadius}{radius} |
| 568 |
|
Set the radius for the cloud of points. |
| 569 |
|
\end{methoddesc} |
| 570 |
|
|
| 571 |
|
\begin{methoddesc}[StreamLines]{setCenter}{position} |
| 572 |
|
Set the center for the cloud of points. |
| 573 |
|
\end{methoddesc} |
| 574 |
|
|
| 575 |
|
\begin{methoddesc}[StreamLines]{setNumberOfPoints}{points} |
| 576 |
|
Set the number of points to generate for the cloud of points. |
| 577 |
|
\end{methoddesc} |
| 578 |
|
|
| 579 |
|
\begin{methoddesc}[StreamLines]{setMaximumPropagationTime}{time} |
| 580 |
|
Set the maximum length for the streamlines in unit of time. |
| 581 |
|
\end{methoddesc} |
| 582 |
|
|
| 583 |
|
\begin{methoddesc}[StreamLines]{setStreamLinesSize}{stream_lines_size} |
| 584 |
|
Set the size of the steamlines. |
| 585 |
|
\end{methoddesc} |
| 586 |
|
|
| 587 |
|
\begin{methoddesc}[StreamLines]{setAccuracy}{accuracy} |
| 588 |
|
Set the accuracy for the streamlines. |
| 589 |
|
\end{methoddesc} |
| 590 |
|
|
| 591 |
|
\begin{methoddesc}[StreamLines]{setIntegrationToBothDirections}{} |
| 592 |
|
Set the integration to occur in both directions. |
| 593 |
|
\end{methoddesc} |
| 594 |
|
|
| 595 |
|
\begin{methoddesc}[StreamLines]{setTubeRadius}{radius} |
| 596 |
|
Set the minimum radius of the tube. |
| 597 |
|
\end{methoddesc} |
| 598 |
|
|
| 599 |
|
\begin{methoddesc}[StreamLines]{setNumberOfSides}{sides} |
| 600 |
|
Set the number of sides for the tube. |
| 601 |
|
\end{methoddesc} |
| 602 |
|
|
| 603 |
|
\begin{methoddesc}[StreamLines]{setVaryRadiusByVector}{} |
| 604 |
|
Set the variation of the tube radius with vector data. |
| 605 |
|
\end{methoddesc} |
| 606 |
|
|
| 607 |
|
The following is a sample code using the \StreamLines class. |
| 608 |
|
\fig{fig:streamlines.1} shows the corresponding output. |
| 609 |
|
\verbatiminput{../examples/driverstreamlines.py} |
| 610 |
|
|
| 611 |
|
\begin{figure}[ht] |
| 612 |
|
\begin{center} |
| 613 |
|
\includegraphics[width=40mm]{figures/StreamLines} |
| 614 |
|
\end{center} |
| 615 |
|
\caption{StreamLines} |
| 616 |
|
\label{fig:streamlines.1} |
| 617 |
|
\end{figure} |
| 618 |
|
|
| 619 |
|
\section{\Carpet class} |
| 620 |
|
\begin{classdesc}{Carpet}{scene, data_collector, transform, lut = None, |
| 621 |
|
deform = None} |
| 622 |
|
A \Carpet object shows a scalar/vector field as a plane deformated along |
| 623 |
|
the plane normal. |
| 624 |
|
\end{classdesc} |
| 625 |
|
|
| 626 |
|
The following is the method available: |
| 627 |
|
\begin{methoddesc}[Carpet]{setScaleFactor}{scale_factor} |
| 628 |
|
Set the displancement scale factor. |
| 629 |
|
\end{methoddesc} |
| 630 |
|
|
| 631 |
|
The following is a sample code using the \Carpet class. |
| 632 |
|
\fig{fig:carpet.1} shows the corresponding output. |
| 633 |
|
\verbatiminput{../examples/drivercarpet.py} |
| 634 |
|
|
| 635 |
|
\begin{figure}[ht] |
| 636 |
|
\begin{center} |
| 637 |
|
\includegraphics[width=40mm]{figures/Carpet} |
| 638 |
|
\end{center} |
| 639 |
|
\caption{Carpet} |
| 640 |
|
\label{fig:carpet.1} |
| 641 |
|
\end{figure} |
| 642 |
|
|
| 643 |
|
|
| 644 |
|
\section{\Position class} |
| 645 |
|
\begin{classdesc}{Position}{x_coor, y_coor, z_coor} |
| 646 |
|
A \Position object defines the x, y and z coordinates of rendered object. |
| 647 |
|
\end{classdesc} |
| 648 |
|
|
| 649 |
|
\section{\Transform class} |
| 650 |
|
\begin{classdesc}{Transform}{} |
| 651 |
|
A \Transform object defines the orientation of rendered object. |
| 652 |
|
\end{classdesc} |
| 653 |
|
|
| 654 |
|
The following are some of the methods available: |
| 655 |
|
\begin{methoddesc}[Transform]{translate}{x_offset, y_offset, z_offset} |
| 656 |
|
Translate the rendered object along the x, y and z-axes. |
| 657 |
|
\end{methoddesc} |
| 658 |
|
|
| 659 |
|
\begin{methoddesc}[Transform]{rotateX}{angle} |
| 660 |
|
Rotate the rendered object along the x-axis. |
| 661 |
|
\end{methoddesc} |
| 662 |
|
|
| 663 |
|
\begin{methoddesc}[Transform]{rotateY}{angle} |
| 664 |
|
Rotate the rendered object along the y-axis. |
| 665 |
|
\end{methoddesc} |
| 666 |
|
|
| 667 |
|
\begin{methoddesc}[Transform]{rotateZ}{angle} |
| 668 |
|
Rotate the rendered object along the z-axis. |
| 669 |
|
\end{methoddesc} |
| 670 |
|
|
| 671 |
|
\begin{methoddesc}[Transform]{xyPlane}{offset = 0} |
| 672 |
|
Set the plane orthogonal to the z-axis. |
| 673 |
|
\end{methoddesc} |
| 674 |
|
|
| 675 |
|
\begin{methoddesc}[Transform]{yzPlane}{offset = 0} |
| 676 |
|
Set the plane orthogonal to the x-axis. |
| 677 |
|
\end{methoddesc} |
| 678 |
|
|
| 679 |
|
\begin{methoddesc}[Transform]{xzPlane}{offset = 0} |
| 680 |
|
Set the plane orthogonal to the y-axis. |
| 681 |
|
\end{methoddesc} |
| 682 |
|
|
| 683 |
|
\section{\Style class} |
| 684 |
|
\begin{classdesc}{Style}{} |
| 685 |
|
A \Style object defines the style of text. |
| 686 |
|
\end{classdesc} |
| 687 |
|
|
| 688 |
|
The following are the methods available: |
| 689 |
|
\begin{methoddesc}[Style]{setFontFamily}{family} |
| 690 |
|
Set the font family (i.e. Times) |
| 691 |
|
\end{methoddesc} |
| 692 |
|
|
| 693 |
|
\begin{methoddesc}[Style]{boldOn}{} |
| 694 |
|
Bold the text. |
| 695 |
|
\end{methoddesc} |
| 696 |
|
|
| 697 |
|
\begin{methoddesc}[Style]{italicOn}{} |
| 698 |
|
Italize the text. |
| 699 |
|
\end{methoddesc} |
| 700 |
|
|
| 701 |
|
\begin{methoddesc}[Style]{shadowOn}{} |
| 702 |
|
Apply shadows on the text. |
| 703 |
|
\end{methoddesc} |
| 704 |
|
|
| 705 |
|
\begin{methoddesc}[Style]{setColor}{} |
| 706 |
|
Set the text color. |
| 707 |
|
\end{methoddesc} |
| 708 |
|
|
| 709 |
|
\section{\BlueToRed class} |
| 710 |
|
\begin{classdesc}{BlueToRed}{} |
| 711 |
|
A \BlueToRed object defines a map spectrum from blue to red. |
| 712 |
|
\end{classdesc} |
| 713 |
|
|
| 714 |
|
\section{\RedToBlue class} |
| 715 |
|
\begin{classdesc}{RedToBlue}{} |
| 716 |
|
A \RedToBlue object defines a map spectrum from red to blue. |
| 717 |
|
\end{classdesc} |
| 718 |
|
|
| 719 |
|
\section{\Plane class} |
| 720 |
|
The following are the methods available: |
| 721 |
|
\begin{methoddesc}[Plane]{setPlaneOrigin}{position} |
| 722 |
|
Set the plane origin |
| 723 |
|
\end{methoddesc} |
| 724 |
|
|
| 725 |
|
\begin{methoddesc}[Plane]{setPlaneNormal}{position} |
| 726 |
|
Set the plane normal |
| 727 |
|
\end{methoddesc} |
| 728 |
|
|
| 729 |
|
\begin{methoddesc}[Plane]{setValue}{clipping_value} |
| 730 |
|
Set the clipping value |
| 731 |
|
\end{methoddesc} |
| 732 |
|
|
| 733 |
|
\begin{methoddesc}[Plane]{setInsideOutOn}{} |
| 734 |
|
Set the clipping to inside out |
| 735 |
|
\end{methoddesc} |
| 736 |
|
|
| 737 |
|
\begin{methoddesc}[Plane]{setInsideOutOff}{} |
| 738 |
|
Disable the inside out clipping |
| 739 |
|
\end{methoddesc} |
| 740 |
|
|
| 741 |
|
\section{Additional Notes} |
| 742 |
|
The following is a sample code rendering multiple planes. |
| 743 |
|
\fig{fig:multipleplanes.1} shows the corresponding output. |
| 744 |
|
\verbatiminput{../examples/drivermultipleplanes.py} |
| 745 |
|
|
| 746 |
|
\begin{figure}[ht] |
| 747 |
|
\begin{center} |
| 748 |
|
\includegraphics[width=60mm]{figures/MultiplePlanes} |
| 749 |
|
\end{center} |
| 750 |
|
\caption{Multiple planes} |
| 751 |
|
\label{fig:multipleplanes.1} |
| 752 |
|
\end{figure} |
| 753 |
|
|
| 754 |
|
The following is a sample code rendering multiple cuts. |
| 755 |
|
\verbatiminput{../examples/drivermultiplecuts.py} |
| 756 |
|
|
| 757 |
|
|
| 758 |
The idea behind is to provide an easy to use interface and unified to a variety of |
The following is a sample code rendering multiple reads from multiple files. |
| 759 |
visualization tools like \VTK, \OpenDX and \GnuPlot. |
\verbatiminput{../examples/drivermultiplereads.py} |
| 760 |
|
|
|
The following script illustartes the usage of \pyvisi together with the |
|
|
\VTK library: |
|
|
\begin{python} |
|
|
from esys.pyvisi import * # base level visualisation stuff |
|
|
from esys.pyvisi.renderers.vtk import * # vtk renderer module |
|
|
from esys.escript import * |
|
|
from esys.finley import Brick |
|
|
# now make some data of some kind |
|
|
domain = Brick(3,5,7) # a Finley domain |
|
|
vectorData = domain.getX() # get vector data from the domain nodes |
|
|
# define the scene object |
|
|
scene = Scene() |
|
|
# create an ArrowPlot object |
|
|
plot = ArrowPlot(scene) |
|
|
# add the plot to the scene |
|
|
scene.add(plot) |
|
|
# assign some data to the plot |
|
|
plot.setData(vectorData) |
|
|
# render the scene |
|
|
scene.render() |
|
|
# saving a scene |
|
|
scene.save(file="example.jpg", format="jpeg") |
|
|
\begin{python} |
|
|
A \Scene is a container for all of the kinds of things you want to put into your plot, |
|
|
for instance, images, domaines, arrow plots, contour plots, spheres etc. |
|
|
The renderer is specified in the scene initialisation. In fact the |
|
|
\code{from esys.pyvisi.renderers.vtk import *} provides the specific implementation for |
|
|
\VTK |
|
|
|
|
|
|
|
|
\begin{verbose} |
|
|
class ArrowPlot3D(Plot): |
|
|
""" |
|
|
Arrow field plot in three dimensions |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the ArrowPlot3D class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of extra options |
|
|
@type options: dict |
|
|
|
|
|
@param fname: Filename of the input vtk file |
|
|
@type fname: string |
|
|
|
|
|
@param format: Format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param vectors: the name of the vector data in the vtk file to use |
|
|
@type vectors: string |
|
|
""" |
|
|
class ArrowPlot(Plot): |
|
|
""" |
|
|
Arrow field plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the ArrowPlot class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
""" |
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of extra options |
|
|
@type options: dict |
|
|
|
|
|
@param fname: the name of the input vtk file |
|
|
@type fname: string |
|
|
|
|
|
@param format: the format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param vectors: the name of the vector data in the vtk file to use |
|
|
@type vectors: string |
|
|
""" |
|
|
class Axes(Plot): |
|
|
""" |
|
|
Axes class |
|
|
""" |
|
|
def __init__(self): |
|
|
""" |
|
|
Initialisation of Axes object |
|
|
""" |
|
|
debugMsg("Called Axes.__init__()") |
|
|
Plot.__init__(self) |
|
|
|
|
|
class BallPlot(Plot): |
|
|
""" |
|
|
Ball plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
|
|
|
def setData(self, points=None, |
|
|
fname=None, format=None, |
|
|
radii=None, colors=None, tags=None): |
|
|
""" |
|
|
Set data to the plot |
|
|
@param points: the array to use for the points of the sphere |
|
|
locations in space |
|
|
@type points: float array |
|
|
|
|
|
@param fname: the name of the input vtk file |
|
|
@type fname: string |
|
|
|
|
|
@param format: the format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param radii: the name of the scalar array in the vtk unstructured |
|
|
grid to use as the radii of the balls |
|
|
@type radii: float array |
|
|
|
|
|
@param colors: the name of the scalar array in the vtk unstructured |
|
|
grid to use as the colour tags of the balls |
|
|
@type colors: string |
|
|
|
|
|
@param tags: the name of the scalar array in the vtk unstructured |
|
|
grid to use as the colour of the tags of the balls |
|
|
@type tags: integer array |
|
|
""" |
|
|
|
|
|
class Box(Item): |
|
|
""" |
|
|
Generic class for Box objects |
|
|
|
|
|
To define a box one specify one of three groups of things: |
|
|
- The bounds of the box: xmin, xmax, ymin, ymax, zmin, zmax |
|
|
- The dimensions and origin: width, height, depth and origin |
|
|
- The bottom left front and top right back corners: blf, trb |
|
|
""" |
|
|
|
|
|
def __init__(self): |
|
|
""" |
|
|
Initialisation of the Box object |
|
|
""" |
|
|
debugMsg("Called Box.__init__()") |
|
|
Item.__init__(self) |
|
|
|
|
|
# define a box in many ways, either by its centre and width, height |
|
|
# and depth, or by its bounds, xmin, xmax, ymin, ymax, zmin, zmax, |
|
|
# or by its bottom left front and top right back points. |
|
|
|
|
|
# set the default bounds |
|
|
self.xmin = -0.5 |
|
|
self.xmax = 0.5 |
|
|
self.ymin = -0.5 |
|
|
self.ymax = 0.5 |
|
|
self.zmin = -0.5 |
|
|
self.zmax = 0.5 |
|
|
|
|
|
# set the default origin (the centre of the box) |
|
|
self.origin = ((self.xmin + self.xmax)/2.0, |
|
|
(self.ymin + self.ymax)/2.0, |
|
|
(self.zmin + self.zmax)/2.0) |
|
|
|
|
|
# set the default dimensions |
|
|
self.width = self.xmax - self.xmin |
|
|
self.height = self.ymax - self.ymin |
|
|
self.depth = self.zmax - self.zmin |
|
|
|
|
|
# set the default blf and trb points |
|
|
self.blf = (self.xmin, self.ymin, self.zmin) |
|
|
self.trb = (self.xmax, self.ymax, self.zmax) |
|
|
|
|
|
# tolerance for calculated variables checking purposes |
|
|
self.tolerance = 1e-8 |
|
|
|
|
|
def setBounds(self, xmin, xmax, ymin, ymax, zmin, zmax): |
|
|
""" |
|
|
Set the bounds of the box |
|
|
""" |
|
|
def getBounds(self): |
|
|
""" |
|
|
Get the current bounds of the box |
|
|
""" |
|
|
|
|
|
def setOrigin(self, xo, yo, zo): |
|
|
""" |
|
|
Set the origin of the box |
|
|
""" |
|
|
def getOrigin(self): |
|
|
""" |
|
|
Get the current origin of the box |
|
|
""" |
|
|
debugMsg("Called Box.getOrigin()") |
|
|
return self.origin |
|
|
|
|
|
def setWidth(self, width): |
|
|
""" |
|
|
Set the width of the box |
|
|
""" |
|
|
def getWidth(self): |
|
|
""" |
|
|
Get the current box width |
|
|
""" |
|
|
debugMsg("Called Box.getWidth()") |
|
|
return self.width |
|
|
|
|
|
def setHeight(self, height): |
|
|
""" |
|
|
Set the box height |
|
|
""" |
|
|
|
|
|
def getHeight(self): |
|
|
""" |
|
|
Get the current box height |
|
|
""" |
|
|
debugMsg("Called Box.getHeight()") |
|
|
return self.height |
|
|
|
|
|
def setDepth(self, depth): |
|
|
""" |
|
|
Set the box depth |
|
|
""" |
|
|
|
|
|
def getDepth(self): |
|
|
""" |
|
|
Get the current box depth |
|
|
""" |
|
|
debugMsg("Called Box.getDepth()") |
|
|
return self.depth |
|
|
|
|
|
def setBLF(self, bottom, left, front): |
|
|
""" |
|
|
Set the position of the bottom, left, front corner |
|
|
""" |
|
|
|
|
|
def getBLF(self): |
|
|
""" |
|
|
Get the current position of the bottom, left, front corner |
|
|
""" |
|
|
debugMsg("Called Box.getBLF()") |
|
|
return self.blf |
|
|
|
|
|
def setTRB(self, top, right, back): |
|
|
""" |
|
|
Set the position of the top, right, back corner |
|
|
""" |
|
|
|
|
|
def getTRB(self): |
|
|
""" |
|
|
Get the current position of the top, right, back corner |
|
|
""" |
|
|
debugMsg("Called Box.getTRB()") |
|
|
return self.trb |
|
|
|
|
|
|
|
|
class ClipBox(Box): |
|
|
""" |
|
|
Clip box class: used to clip data sets with a box |
|
|
|
|
|
A box in this sense means three planes at right angles to one another |
|
|
""" |
|
|
|
|
|
def __init__(self, plot): |
|
|
""" |
|
|
Intialisation of the ClipBox object |
|
|
""" |
|
|
|
|
|
def setInsideOut(self, insideOut): |
|
|
""" |
|
|
Set the inside out flag |
|
|
""" |
|
|
|
|
|
def getInsideOut(self): |
|
|
""" |
|
|
Get the current value of the inside out flag |
|
|
""" |
|
|
|
|
|
class Camera(Item): |
|
|
""" |
|
|
Camera class |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the Camera object |
|
|
|
|
|
@param scene: The Scene object to add the Camera object to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
def setPosition(self, *pos): |
|
|
""" |
|
|
Set position of camera within scene |
|
|
|
|
|
@param pos: Position to set camera in terms of x,y,z coordinates |
|
|
@type pos: tuple |
|
|
""" |
|
|
|
|
|
def getPosition(self): |
|
|
""" |
|
|
Get the position of Camera within Scene |
|
|
|
|
|
Returns the position in a tuple of form (xPos, yPos, zPos) |
|
|
""" |
|
|
debugMsg("Called Camera.getPosition()") |
|
|
|
|
|
return (self.xPos, self.yPos, self.zPos) |
|
|
|
|
|
def setFocalPoint(self, *pos): |
|
|
""" |
|
|
Sets the focal point of the Camera with the Scene |
|
|
|
|
|
@param pos: Position to set the focal point |
|
|
@type pos: tuple |
|
|
""" |
|
|
|
|
|
def getFocalPoint(self): |
|
|
""" |
|
|
Get the position of the focal point of the Camera |
|
|
|
|
|
Returns the position of the focal point in a tuple of form |
|
|
(xPos, yPos, zPos) |
|
|
""" |
|
|
|
|
|
def setElevation(self, elevation): |
|
|
""" |
|
|
Set the elevation angle (in degrees) of the Camera |
|
|
|
|
|
@param elevation: The elevation angle (in degrees) of the Camera |
|
|
@type elevation: float |
|
|
""" |
|
|
|
|
|
return |
|
|
|
|
|
def getElevation(self): |
|
|
""" |
|
|
Gets the elevation angle (in degrees) of the Camera |
|
|
""" |
|
|
|
|
|
def setAzimuth(self, azimuth): |
|
|
""" |
|
|
Set the azimuthal angle (in degrees) of the Camera |
|
|
|
|
|
@param azimuth: The azimuthal angle (in degrees) of the Camera |
|
|
@type azimuth: float |
|
|
""" |
|
|
|
|
|
def getAzimuth(self): |
|
|
""" |
|
|
Get the azimuthal angle (in degrees) of the Camera |
|
|
""" |
|
|
class ContourPlot(Plot): |
|
|
""" |
|
|
Contour plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the ContourPlot class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
""" |
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of extra options |
|
|
@type options: dict |
|
|
|
|
|
@param fname: the name of the input vtk file |
|
|
@type fname: string |
|
|
|
|
|
@param format: the format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param scalars: the scalar data in the vtk file to use |
|
|
@type scalars: string |
|
|
""" |
|
|
|
|
|
class EllipsoidPlot(Plot): |
|
|
""" |
|
|
Ellipsoid plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the EllipsoidPlot class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
""" |
|
|
debugMsg("Called EllipsoidPlot.__init__()") |
|
|
Plot.__init__(self, scene) |
|
|
|
|
|
self.renderer = scene.renderer |
|
|
self.renderer.addToInitStack("# EllipsoidPlot.__init__()") |
|
|
|
|
|
# labels and stuff |
|
|
self.title = None |
|
|
self.xlabel = None |
|
|
self.ylabel = None |
|
|
self.zlabel = None |
|
|
|
|
|
# default values for fname, format and tensors |
|
|
self.fname = None |
|
|
self.format = None |
|
|
self.tensors = None |
|
|
|
|
|
# default values for shared info |
|
|
self.escriptData = False |
|
|
self.otherData = False |
|
|
|
|
|
# add the plot to the scene |
|
|
scene.add(self) |
|
|
|
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of keyword options to the method |
|
|
@type options: dict |
|
|
|
|
|
@param fname: the name of the input vtk file |
|
|
@type fname: string |
|
|
|
|
|
@param format: the format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param tensors: the name of the tensor data in the vtk file to use |
|
|
@type tensors: string |
|
|
""" |
|
|
|
|
|
class Image(Item): |
|
|
""" |
|
|
Image class. Generic class to handle image data. |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the Image class object |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
debugMsg("Called Image.__init__()") |
|
|
Item.__init__(self) |
|
|
|
|
|
if scene is not None: |
|
|
self.renderer = scene.renderer |
|
|
|
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads image data from file. |
|
|
|
|
|
@param fname: The filename from which to load image data |
|
|
@type fname: string |
|
|
""" |
|
|
debugMsg("Called Image.load()") |
|
|
|
|
|
fileCheck(fname) |
|
|
|
|
|
return |
|
|
|
|
|
class JpegImage(Image): |
|
|
""" |
|
|
Subclass of Image class to explicitly handle jpeg images |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the JpegImage class object |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads jpeg image data from file. |
|
|
|
|
|
@param fname: The filename from which to load jpeg image data |
|
|
@type fname: string |
|
|
""" |
|
|
|
|
|
class PngImage(Image): |
|
|
""" |
|
|
Subclass of Image class to explicitly handle png images |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the PngImage class object |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads png image data from file. |
|
|
|
|
|
@param fname: The filename from which to load png image data |
|
|
@type fname: string |
|
|
""" |
|
|
class BmpImage(Image): |
|
|
""" |
|
|
Subclass of Image class to explicitly handle bmp images |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the BmpImage class object |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads bmp image data from file. |
|
|
|
|
|
@param fname: The filename from which to load bmp image data |
|
|
@type fname: string |
|
|
""" |
|
|
|
|
|
class TiffImage(Image): |
|
|
""" |
|
|
Subclass of Image class to explicitly handle tiff images |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the TiffImage class object |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads tiff image data from file. |
|
|
|
|
|
@param fname: The filename from which to load tiff image data |
|
|
@type fname: string |
|
|
""" |
|
|
class PnmImage(Image): |
|
|
""" |
|
|
Subclass of Image class to explicitly handle pnm (ppm, pgm, pbm) images |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the PnmImage class object |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads pnm (ppm, pgm, pbm) image data from file. |
|
|
|
|
|
@param fname: The filename from which to load pnm image data |
|
|
@type fname: string |
|
|
""" |
|
|
|
|
|
class PsImage(Image): |
|
|
""" |
|
|
Subclass of Image class to explicitly handle ps images |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the PsImage class object |
|
|
|
|
|
This object is B{only} used for generating postscript output |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads ps image data from file. |
|
|
|
|
|
B{NOT} supported by this renderer module |
|
|
|
|
|
@param fname: The filename from which to load ps image data |
|
|
@type fname: string |
|
|
""" |
|
|
debugMsg("Called PsImage.load()") |
|
|
|
|
|
# need to check if the file exists |
|
|
fileCheck(fname) |
|
|
|
|
|
# this ability not handled by this renderer module |
|
|
unsupportedError() |
|
|
|
|
|
return |
|
|
|
|
|
def render(self): |
|
|
""" |
|
|
Does PsImage object specific (pre)rendering stuff |
|
|
""" |
|
|
debugMsg("Called PsImage.render()") |
|
|
|
|
|
return |
|
|
|
|
|
class PdfImage(Image): |
|
|
""" |
|
|
Subclass of Image class to explicitly handle pdf images |
|
|
""" |
|
|
def __init__(self, scene=None): |
|
|
""" |
|
|
Initialises the PdfImage class object |
|
|
|
|
|
This object is B{only} used for generating pdf output |
|
|
|
|
|
@param scene: The Scene object to add to |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def load(self, fname): |
|
|
""" |
|
|
Loads pdf image data from file. |
|
|
|
|
|
B{NOT} supported by this renderer module |
|
|
|
|
|
@param fname: The filename from which to load pdf image data |
|
|
@type fname: string |
|
|
""" |
|
|
|
|
|
class IsosurfacePlot(Plot): |
|
|
""" |
|
|
Isosurface plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the IsosurfacePlot class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
""" |
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
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|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
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|
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|
@param options: Dictionary of keyword options to the method |
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|
@type options: dict |
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|
|
|
|
@param fname: the name of the input vtk file |
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|
@type fname: string |
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|
|
|
|
@param format: the format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param scalars: the name of the scalar data in the vtk file to use |
|
|
@type scalars: string |
|
|
""" |
|
|
|
|
|
class LinePlot(Plot): |
|
|
""" |
|
|
Line plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the LinePlot class |
|
|
|
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|
@param scene: The Scene to render the plot in |
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|
@type scene: Scene object |
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|
""" |
|
|
|
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|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of extra options |
|
|
@type options: dict |
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|
|
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|
@param offset: whether or not to offset the lines from one another |
|
|
@type offset: boolean |
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|
|
|
@param fname: Filename of the input vtk file |
|
|
@type fname: string |
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|
|
|
|
@param format: format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param scalars: the name of the scalar data in the vtk file to use |
|
|
@type scalars: string |
|
|
""" |
|
|
|
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|
class OffsetPlot(Plot): |
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|
""" |
|
|
Offset plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the OffsetPlot class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of extra options |
|
|
@type options: dict |
|
|
|
|
|
@param fname: Filename of the input vtk file |
|
|
@type fname: string |
|
|
|
|
|
@param format: Format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param scalars: the name of the scalar data in the vtk file to use |
|
|
@type scalars: string |
|
|
""" |
|
|
class Plane(Item): |
|
|
""" |
|
|
Generic class for Plane objects |
|
|
""" |
|
|
|
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the Plane object |
|
|
""" |
|
|
|
|
|
def setOrigin(self, x, y, z): |
|
|
""" |
|
|
Set the origin of the plane |
|
|
""" |
|
|
|
|
|
def getOrigin(self): |
|
|
""" |
|
|
Get the current origin of the plane |
|
|
""" |
|
|
|
|
|
def setNormal(self, vx, vy, vz): |
|
|
""" |
|
|
Set the normal vector to the plane |
|
|
""" |
|
|
|
|
|
def getNormal(self): |
|
|
""" |
|
|
Get the current normal vector to the plane |
|
|
""" |
|
|
|
|
|
def mapImageToPlane(self, image): |
|
|
# this really needs to go somewhere else!!! |
|
|
""" |
|
|
Maps an Image object onto a Plane object |
|
|
""" |
|
|
|
|
|
class CutPlane(Plane): |
|
|
""" |
|
|
Cut plane class: used to cut data sets with a plane |
|
|
|
|
|
Cut plane objects define a plane to cut a data set or plot by and return |
|
|
the data along the intersection between the data set or plot with the |
|
|
defined plane. |
|
|
""" |
|
|
|
|
|
def __init__(self): |
|
|
""" |
|
|
Intialisation of the CutPlane object |
|
|
""" |
|
|
|
|
|
|
|
|
class ClipPlane(Plane): |
|
|
""" |
|
|
Class for planes used to clip datasets |
|
|
""" |
|
|
|
|
|
def __init__(self): |
|
|
""" |
|
|
Intialisation of the ClipPlane object |
|
|
""" |
|
|
|
|
|
def setInsideOut(self, insideOut): |
|
|
""" |
|
|
Set the inside out flag |
|
|
""" |
|
|
|
|
|
def getInsideOut(self): |
|
|
""" |
|
|
Get the current value of the inside out flag |
|
|
""" |
|
|
|
|
|
class Plot(Item): |
|
|
""" |
|
|
Abstract plot class |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the abstract Plot class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of extra options |
|
|
@type options: dict |
|
|
""" |
|
|
|
|
|
def setTitle(self, title): |
|
|
""" |
|
|
Set the plot title |
|
|
|
|
|
@param title: the string holding the title to the plot |
|
|
@type title: string |
|
|
""" |
|
|
debugMsg("Called setTitle() in Plot()") |
|
|
|
|
|
|
|
|
def setXLabel(self, label): |
|
|
""" |
|
|
Set the label of the x-axis |
|
|
|
|
|
@param label: the string holding the label of the x-axis |
|
|
@type label: string |
|
|
""" |
|
|
|
|
|
def setYLabel(self, label): |
|
|
""" |
|
|
Set the label of the y-axis |
|
|
|
|
|
@param label: the string holding the label of the y-axis |
|
|
@type label: string |
|
|
""" |
|
|
|
|
|
def setZLabel(self, label): |
|
|
""" |
|
|
Set the label of the z-axis |
|
|
|
|
|
@param label: the string holding the label of the z-axis |
|
|
@type label: string |
|
|
""" |
|
|
|
|
|
def setLabel(self, axis, label): |
|
|
""" |
|
|
Set the label of a given axis |
|
|
|
|
|
@param axis: string (Axis object maybe??) of the axis (e.g. x, y, z) |
|
|
@type axis: string or Axis object |
|
|
|
|
|
@param label: string of the label to set for the axis |
|
|
@type label: string |
|
|
""" |
|
|
|
|
|
class Renderer(BaseRenderer): |
|
|
""" |
|
|
A generic object holding a renderer of a Scene(). |
|
|
""" |
|
|
|
|
|
def __init__(self): |
|
|
""" |
|
|
Initialisation of Renderer() class |
|
|
""" |
|
|
debugMsg("Called Renderer.__init__()") |
|
|
BaseRenderer.__init__(self) |
|
|
|
|
|
# initialise some attributes |
|
|
self.renderWindowWidth = 640 |
|
|
self.renderWindowHeight = 480 |
|
|
|
|
|
# what is the name of my renderer? |
|
|
self.name = _rendererName |
|
|
|
|
|
# the namespace to run the exec code |
|
|
self.renderDict = {} |
|
|
|
|
|
# initialise the evalstack |
|
|
self._evalStack = "" |
|
|
|
|
|
# keep the initial setup of the module for later reuse |
|
|
self._initStack = "" |
|
|
|
|
|
# initialise the renderer module |
|
|
self.runString("# Renderer._initRendererModule") |
|
|
self.addToInitStack("import vtk") |
|
|
self.addToInitStack("from numarray import *") |
|
|
|
|
|
__revision__ = '$Revision: 1.33 $' |
|
|
|
|
|
class Scene(BaseScene): |
|
|
""" |
|
|
The main object controlling the scene. |
|
|
|
|
|
Scene object methods and classes overriding the BaseScene class. |
|
|
""" |
|
|
|
|
|
def __init__(self): |
|
|
""" |
|
|
The init function |
|
|
""" |
|
|
|
|
|
def add(self, obj): |
|
|
""" |
|
|
Add a new item to the scene |
|
|
|
|
|
@param obj: The object to add to the scene |
|
|
@type obj: object |
|
|
""" |
|
|
|
|
|
def place(self, obj): |
|
|
""" |
|
|
Place an object within a scene |
|
|
|
|
|
@param obj: The object to place within the scene |
|
|
@type obj: object |
|
|
""" |
|
|
|
|
|
def render(self, pause=False, interactive=False): |
|
|
""" |
|
|
Render (or re-render) the scene |
|
|
|
|
|
Render the scene, either to screen, or to a buffer waiting for a save |
|
|
|
|
|
@param pause: Flag to wait at end of script evaluation for user input |
|
|
@type pause: boolean |
|
|
|
|
|
@param interactive: Whether or not to have interactive use of the output |
|
|
@type interactive: boolean |
|
|
""" |
|
|
|
|
|
def save(self, fname, format): |
|
|
""" |
|
|
Save the scene to a file |
|
|
|
|
|
Possible formats are: |
|
|
- Postscript |
|
|
- PNG |
|
|
- JPEG |
|
|
- TIFF |
|
|
- BMP |
|
|
- PNM |
|
|
|
|
|
@param fname: Name of output file |
|
|
@type fname: string |
|
|
|
|
|
@param format: Graphics format of output file |
|
|
@type format: Image object or string |
|
|
""" |
|
|
|
|
|
def setBackgroundColor(self, *color): |
|
|
""" |
|
|
Sets the background color of the Scene |
|
|
|
|
|
@param color: The color to set the background to. Can be RGB or CMYK |
|
|
@type color: tuple |
|
|
""" |
|
|
|
|
|
def getBackgroundColor(self): |
|
|
""" |
|
|
Gets the current background color setting of the Scene |
|
|
""" |
|
|
|
|
|
def setSize(self, xSize, ySize): |
|
|
""" |
|
|
Sets the size of the scene. |
|
|
|
|
|
This size is effectively the renderer window size. |
|
|
|
|
|
@param xSize: the size to set the x dimension |
|
|
@type xSize: float |
|
|
|
|
|
@param ySize: the size to set the y dimension |
|
|
@type ySize: float |
|
|
""" |
|
|
|
|
|
def getSize(self): |
|
|
""" |
|
|
Gets the current size of the scene |
|
|
|
|
|
This size is effectively the renderer window size. Returns a tuple |
|
|
of the x and y dimensions respectively, in pixel units(??). |
|
|
""" |
|
|
class SurfacePlot(Plot): |
|
|
""" |
|
|
Surface plot |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the SurfacePlot class |
|
|
|
|
|
@param scene: The Scene to render the plot in |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def setData(self, *dataList, **options): |
|
|
""" |
|
|
Set data to the plot |
|
|
|
|
|
@param dataList: List of data to set to the plot |
|
|
@type dataList: tuple |
|
|
|
|
|
@param options: Dictionary of extra options |
|
|
@type options: dict |
|
|
|
|
|
@param fname: the name of the input vtk file |
|
|
@type fname: string |
|
|
|
|
|
@param format: the format of the input vtk file ('vtk' or 'vtk-xml') |
|
|
@type format: string |
|
|
|
|
|
@param scalars: the scalar data in the vtk file to use |
|
|
@type scalars: string |
|
|
""" |
|
|
|
|
|
class Text(Item): |
|
|
""" |
|
|
Text |
|
|
""" |
|
|
def __init__(self, scene): |
|
|
""" |
|
|
Initialisation of the Text object |
|
|
|
|
|
@param scene: the scene with which to associate the Text object |
|
|
@type scene: Scene object |
|
|
""" |
|
|
|
|
|
def setFont(self, font): |
|
|
""" |
|
|
Set the current font |
|
|
|
|
|
@param font: the font to set |
|
|
@type font: string |
|
|
""" |
|
|
|
|
|
def getFont(self): |
|
|
""" |
|
|
\end{verbose} |
|
Parent Directory
| 
Revision Log
| 
Patch