pyvisi/py_src/datacollector.py

"""
@author: John Ngui
@author: Lutz Gross
"""

import vtk
from common import *
from colormap import ColorMap

class DataCollector(Common):
    """
    Class that deals with data for the visualization.
    """

    def __init__(self, scene, outline = True, cube_axes = True):
        """
        Initialize all the instance variables. 

        @type scene: L{Scene <scene.Scene>} object
        @param scene: Scene in which components are to be added to
        @type outline: Boolean (I{True or False})
        @param outline: Determines the outline for the rendered object
        """

        self.scene = scene  
        self.outline = outline 
        self.cube_axes = cube_axes
        self.file_name = None
        self.vtk_outline = None
        self.vtk_xml_reader = None 
        self.vtk_xml_reader_output = None

    def setFileName(self, file_name):
        """ 
        Set up the file reader and set the file name.

        @type file_name: String
        @param file_name: Name of the file to be read.
        """

        self.file_name = file_name
        self.vtk_xml_reader = vtk.vtkXMLUnstructuredGridReader()
        self.vtk_xml_reader.SetFileName(self.file_name)

        if(self.outline == True):
            self.setOutline()
            Common.setMapper(self, "self.vtk_outline.GetOutput()")
            Common.setActor(self)
            Common.addActor(self)   
            Common.setColor(self, 0, 0, 0) # Default outline is black

        if(self.cube_axes == True):
            self.setCubeAxes()
    
    def getReader(self):
        """
        Return the file reader.

        @rtype: vtkXMLUnstructuredGridReader
        @return: VTK XML unstructured grid reader
        """

        return self.vtk_xml_reader

    def setOutline(self):
        """ 
        Set the outline for the rendered object.
        """

        self.vtk_outline = vtk.vtkOutlineFilter()
        self.vtk_outline.SetInput(self.vtk_xml_reader.GetOutput())  

    def setCubeAxes(self):
        vtk_cube_axes = vtk.vtkCubeAxesActor2D()
        vtk_cube_axes.SetInput(self.vtk_xml_reader.GetOutput())
        vtk_cube_axes.SetCamera(self.scene.getRenderer().GetActiveCamera())
        vtk_cube_axes.SetLabelFormat("%6.4g")
        vtk_cube_axes.SetFlyModeToClosestTriad()
        vtk_cube_axes.SetFontFactor(0.8)

        self.scene.getRenderer().AddActor(vtk_cube_axes)
            

1	"""
2	@author: John Ngui
3	@author: Lutz Gross
4	"""
5
6	import vtk
7	from common import *
8	from colormap import ColorMap
9
10	class DataCollector(Common):
11	"""
12	Class that deals with data for the visualization.
13	"""
14
15	def __init__(self, scene, outline = True, cube_axes = True):
16	"""
17	Initialize all the instance variables.
18
19	@type scene: L{Scene <scene.Scene>} object
20	@param scene: Scene in which components are to be added to
21	@type outline: Boolean (I{True or False})
22	@param outline: Determines the outline for the rendered object
23	"""
24
25	self.scene = scene
26	self.outline = outline
27	self.cube_axes = cube_axes
28	self.file_name = None
29	self.vtk_outline = None
30	self.vtk_xml_reader = None
31	self.vtk_xml_reader_output = None
32
33	def setFileName(self, file_name):
34	"""
35	Set up the file reader and set the file name.
36
37	@type file_name: String
38	@param file_name: Name of the file to be read.
39	"""
40
41	self.file_name = file_name
42	self.vtk_xml_reader = vtk.vtkXMLUnstructuredGridReader()
43	self.vtk_xml_reader.SetFileName(self.file_name)
44
45	if(self.outline == True):
46	self.setOutline()
47	Common.setMapper(self, "self.vtk_outline.GetOutput()")
48	Common.setActor(self)
49	Common.addActor(self)
50	Common.setColor(self, 0, 0, 0) # Default outline is black
51
52	if(self.cube_axes == True):
53	self.setCubeAxes()
54
55	def getReader(self):
56	"""
57	Return the file reader.
58
59	@rtype: vtkXMLUnstructuredGridReader
60	@return: VTK XML unstructured grid reader
61	"""
62
63	return self.vtk_xml_reader
64
65	def setOutline(self):
66	"""
67	Set the outline for the rendered object.
68	"""
69
70	self.vtk_outline = vtk.vtkOutlineFilter()
71	self.vtk_outline.SetInput(self.vtk_xml_reader.GetOutput())
72
73	def setCubeAxes(self):
74	vtk_cube_axes = vtk.vtkCubeAxesActor2D()
75	vtk_cube_axes.SetInput(self.vtk_xml_reader.GetOutput())
76	vtk_cube_axes.SetCamera(self.scene.getRenderer().GetActiveCamera())
77	vtk_cube_axes.SetLabelFormat("%6.4g")
78	vtk_cube_axes.SetFlyModeToClosestTriad()
79	vtk_cube_axes.SetFontFactor(0.8)
80
81	self.scene.getRenderer().AddActor(vtk_cube_axes)
82
83
84
85
86