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):
        """
        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 = True
        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
    
    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())  


1	gross	792	"""
2	jongui	839	@author: John Ngui
3			@author: Lutz Gross
4	gross	792	"""
5
6	jongui	822	import vtk
7	jongui	828	from common import *
8	jongui	839	from colormap import ColorMap
9	gross	792
10	jongui	828	class DataCollector(Common):
11	jongui	835	"""
12	jongui	839	Class that deals with data for the visualization.
13	jongui	835	"""
14	gross	792
15	jongui	839	def __init__(self, scene, outline = True):
16	jongui	835	"""
17			Initialize all the instance variables.
18
19	jongui	845	@type scene: L{Scene <scene.Scene>} object
20	jongui	839	@param scene: Scene in which components are to be added to
21	jongui	835	@type outline: Boolean (I{True or False})
22			@param outline: Determines the outline for the rendered object
23			"""
24
25	jongui	839	self.scene = scene
26	jongui	822	self.outline = True
27			self.file_name = None
28	jongui	828	self.vtk_outline = None
29	jongui	827	self.vtk_xml_reader = None
30			self.vtk_xml_reader_output = None
31	jongui	822
32	jongui	845	def setFileName(self, file_name):
33	jongui	835	"""
34			Set up the file reader and set the file name.
35
36			@type file_name: String
37			@param file_name: Name of the file to be read.
38			"""
39
40	jongui	822	self.file_name = file_name
41			self.vtk_xml_reader = vtk.vtkXMLUnstructuredGridReader()
42			self.vtk_xml_reader.SetFileName(self.file_name)
43
44	jongui	827	if(self.outline == True):
45	jongui	828	self.setOutline()
46			Common.setMapper(self, "self.vtk_outline.GetOutput()")
47			Common.setActor(self)
48			Common.addActor(self)
49	jongui	835	Common.setColor(self, 0, 0, 0) # Default outline is black
50	jongui	827
51	jongui	822	def getReader(self):
52	jongui	835	"""
53			Return the file reader.
54
55			@rtype: vtkXMLUnstructuredGridReader
56			@return: VTK XML unstructured grid reader
57			"""
58
59	jongui	822	return self.vtk_xml_reader
60
61	jongui	828	def setOutline(self):
62	jongui	835	"""
63			Set the outline for the rendered object.
64			"""
65
66	jongui	828	self.vtk_outline = vtk.vtkOutlineFilter()
67			self.vtk_outline.SetInput(self.vtk_xml_reader.GetOutput())
68	jongui	822
69	jongui	827