Changes between Version 5 and Version 6 of Examples/Brain

Timestamp:

04/11/17 12:51:27 (7 years ago)

Author:

Herwig Zilken

Comment:

--

Examples/Brain

@@ -130 +130 @@
 }}}
 
-== Prototyping the movie
+== Prototyping the Movie
 Later we will generate the movie by controlling the rendering process in !ParaView via a Python-script (pvpython). Before we can do this, we need to find out good camera positions for camera flights, proper color- and transparency-tables, maybe a volume of interest and so on.
 
@@ -136 +136 @@
 It is also very helpful to open the Python-Trace window of !ParaView, where most parameter changes made in the GUI are shown as Python commands. Those commands can, with little changes, be used in the final Python script for the movie generation.
 
-== Generating the movie with a Python script
+== Generating the Movie by Python Scripting
 In the next sections the resulting Python script is shown step by step.
 === Preliminary Steps
@@ -157 +157 @@
 
 === Loading the Data
-The data is loaded and then visualized with the [http://www.ospray.org/ OSPRay] volume renderer:
+The data is loaded and then visualized with the [http://www.ospray.org/ OSPRay] volume renderer. Proper color and opacity functions are set.
 {{{
 #!python
@@ -173 +173 @@
 vervetDisplay.ScaleFactor = 0.09998712839442306
 vervetDisplay.SelectScaleArray = 'PLI'
+
+pLILUT = GetColorTransferFunction('PLI')
+pLILUT.ScalarRangeInitialized = 1.0
+pLILUT.RGBPoints = [0.0, 0.33, 0.33, 0.5,   27.0, 1.0, 1.0, .9,   51.0, 0.9, 0.9, 0.0,   65.0, 0.9, 0.0, 0.0,   254.0, 0.0, 0.0, 0.0]
+pLILUT.ColorSpace = 'RGB'
+
+# get opacity transfer function/opacity map for 'PLI'
+pLIPWF = GetOpacityTransferFunction('PLI')
+pLIPWF.Points = [0.0, 0.0, 0.5, 0.0,   254.0, 1.0, 0.5, 0.0]
+pLIPWF.ScalarRangeInitialized = 1
 }}}
 
 === Camera Animation: Path-based
-To orbit around the data (rotate the data), the camera can be animated in orbit mode. The !CameraTrack and the !AnimationScene are used in conjunction with two keyframes to render 100 images. Please note that in 'Path-based' mode the camera parameters of ALL camera positions on the track are stored in PositionPathPoints of the first keyframe.
+To orbit around the data (rotate the data), the camera can be animated in 'Path-based' mode. The !CameraTrack and the !AnimationScene are used in conjunction with two keyframes to render 100 images. Please note that in 'Path-based' mode the location of ALL camera positions on the track are stored in !PositionPathPoints of the first keyframe.
 {{{
 #!python