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ksteube |
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######################################################## |
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# |
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# Copyright (c) 2003-2008 by University of Queensland |
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# Earth Systems Science Computational Center (ESSCC) |
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# http://www.uq.edu.au/esscc |
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# |
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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/licenses/osl-3.0.php |
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# |
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######################################################## |
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__copyright__="""Copyright (c) 2003-2008 by University of Queensland |
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Earth Systems Science Computational Center (ESSCC) |
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http://www.uq.edu.au/esscc |
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Primary Business: Queensland, Australia""" |
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__license__="""Licensed under the Open Software License version 3.0 |
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http://www.opensource.org/licenses/osl-3.0.php""" |
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__url__="http://www.uq.edu.au/esscc/escript-finley" |
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ksteube |
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""" |
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Author: Ken Steube |
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""" |
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# Example of creating an image in a file (without the need for an X connection) |
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# Import the necessary modules. |
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from esys.pyvisi import Scene, DataCollector, Map, ImageReader, Image, Camera |
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from esys.pyvisi import GlobalPosition |
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from esys.pyvisi.constant import * |
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ksteube |
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import os, sys |
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ksteube |
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PYVISI_EXAMPLE_MESHES_PATH = "data_meshes" |
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PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images" |
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X_SIZE = 400 |
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Y_SIZE = 400 |
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SCALAR_FIELD_POINT_DATA = "temperature" |
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FILE_3D = "interior_3D.xml" |
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LOAD_IMAGE_NAME = "flinders.jpg" |
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JPG_RENDERER = Renderer.OFFLINE_JPG |
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# Create a Scene. |
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s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE, |
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y_size = Y_SIZE) |
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if not os.path.isfile("data_meshes/interior_3D.xml"): |
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print "Cannot find file data_meshes/interior_3D.xml" |
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sys.exit(1) |
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ksteube |
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# Create a DataCollector reading from a XML file. |
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dc1 = DataCollector(source = Source.XML) |
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dc1.setFileName(file_name = "data_meshes/interior_3D.xml") |
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# Create a Map. |
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m1 = Map(scene = s, data_collector = dc1, viewport = Viewport.SOUTH_WEST, |
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lut = Lut.COLOR, cell_to_point = False, outline = True) |
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m1.setOpacity(0.3) |
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# Create an ImageReader (in place of DataCollector). |
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ir = ImageReader(ImageFormat.JPG) |
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ir.setImageName(image_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \ |
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LOAD_IMAGE_NAME)) |
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# Create an Image. |
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i = Image(scene = s, image_reader = ir, viewport = Viewport.SOUTH_WEST) |
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i.setOpacity(opacity = 0.9) |
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i.translate(0,0,-1) |
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i.setPoint1(GlobalPosition(2,0,0)) |
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i.setPoint2(GlobalPosition(0,2,0)) |
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# Create a Camera. |
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c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST) |
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# Render the image. |
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print "Creating image file ./offscreen.jpg" |
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s.render(image_name = "offscreen.jpg") |
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