test/VisuPrs/3D_viewer/A3.py

   1 # Copyright (C) 2010-2016  CEA/DEN, EDF R&D
   2 #
   3 # This library is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU Lesser General Public
   5 # License as published by the Free Software Foundation; either
   6 # version 2.1 of the License, or (at your option) any later version.
   7 #
   8 # This library is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 # Lesser General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU Lesser General Public
  14 # License along with this library; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 #
  17 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 #
  19
  20 # This case corresponds to: /visu/3D_viewer/A3 case
  21 # Create 3D Viewer and test set view properties for Stream Lines presentation
  22 # Author: POLYANSKIKH VERA
  23 from paravistest import *
  24 from presentations import *
  25 from pvsimple import *
  26 import sys
  27 import time
  28
  29 # Directory for saving snapshots
  30 picturedir = get_picture_dir("3D_viewer/A3")
  31
  32 # Add path separator to the end of picture path if necessery
  33 if not picturedir.endswith(os.sep):
  34     picturedir += os.sep
  35
  36 # Get view
  37 my_view = GetRenderView()
  38 reset_view(my_view)
  39 Render(my_view)
  40
  41 file_name = datadir + "Penta6.med"
  42 print " --------------------------------- "
  43 print "file ", file_name
  44 print " --------------------------------- "
  45
  46 OpenDataFile(file_name)
  47 #reader = OpenDataFile(file_name)
  48 #reader = MEDReader(FileName=file_name)
  49 #keys = reader.GetProperty("FieldsTreeInfo")[::2]
  50 #reader.AllArrays = [keys[0]]
  51 #SetActiveSource(reader)
  52
  53 #reader.UpdatePipelineInformation()
  54 #from paraview import servermanager
  55 #res = servermanager.Fetch(reader,0)
  56 #print res
  57
  58 proxy = GetActiveSource()
  59 if proxy is None:
  60     raise RuntimeError("Error: can't import file.")
  61 else:
  62     print "OK"
  63
  64 represents = [RepresentationType.POINTS, RepresentationType.WIREFRAME,\
  65 RepresentationType.SURFACE, RepresentationType.VOLUME]
  66
  67 shrinks = [0, 1]
  68 shadings = ["Flat", "Gouraud"]
  69 opacities = [1.0, 0.5, 0.0]
  70 linewidths = [1.0, 3.0, 10.0]
  71 compare_prec = 0.00001
  72
  73 field_name = 'vectoriel field'
  74
  75 print "\nCreating stream_lines......."
  76 stream_lines = StreamLinesOnField(proxy, EntityType.CELL,
  77                                   field_name, 1, is_colored=True)
  78 stream_tracer = stream_lines.Input
  79 print "stream_tracer:", stream_tracer
  80 #stream_tracer.Input = None
  81 stream_tracer.InitialStepLength = 0.00940275
  82 stream_tracer.MaximumStreamlineLength = 140.373
  83 stream_tracer.MaximumStepLength = 0.5319
  84 stream_tracer.MinimumStepLength = 0.5319
  85 stream_tracer.UpdatePipeline()
  86
  87 if stream_lines is None:
  88     raise RuntimeError("Error!!! Presentation wasn't created...")
  89
  90 display_only(stream_lines, my_view)
  91 reset_view(my_view)
  92 Render(my_view)
  93
  94 print "\nChange Presentation Parameters..."
  95
  96 for reprCode in represents:
  97     repr = RepresentationType.get_name(reprCode)
  98     if reprCode == RepresentationType.VOLUME:
  99         is_good = call_and_check(stream_lines, "Representation", repr, 0)
 100         if is_good:
 101             msg = "VOLUME representation must be not available for streamlines"
 102             raise RuntimeError(msg)
 103     else:
 104         call_and_check(stream_lines, "Representation", repr, 1)
 105
 106         for sha in shadings:
 107             setShaded(my_view, sha)
 108             call_and_check(stream_lines, "Interpolation", sha, 1)
 109             Render(my_view)
 110             time.sleep(1)
 111
 112             for lwi in linewidths:
 113                 call_and_check(stream_lines, "LineWidth", lwi, 1, compare_prec)
 114                 # save picture in file
 115                 # Construct image file name
 116                 pic_name = picturedir + "params_" + repr.replace(' ', '_') + "_any_" +  \
 117                     str(sha) + "_" + str(lwi) + "." + pictureext
 118                 # Show and record the presentation
 119                 process_prs_for_test(stream_lines, my_view, pic_name)
 120
 121 for opa in opacities:
 122     call_and_check(stream_lines, "Opacity", opa, 1, compare_prec)