1 # Copyright (C) 2010-2014 CEA/DEN, EDF R&D
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.
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.
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
17 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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 *
30 # Directory for saving snapshots
31 picturedir = get_picture_dir("3D_viewer/A3")
33 # Add path separator to the end of picture path if necessery
34 if not picturedir.endswith(os.sep):
38 my_paravis = paravis.myParavis
41 my_view = GetRenderView()
45 file_name = datadir + "Penta6.med"
46 print " --------------------------------- "
47 print "file ", file_name
48 print " --------------------------------- "
50 my_paravis.ImportFile(file_name)
51 proxy = GetActiveSource()
53 raise RuntimeError("Error: can't import file.")
57 represents = [RepresentationType.POINTS, RepresentationType.WIREFRAME,\
58 RepresentationType.SURFACE, RepresentationType.VOLUME]
61 opacities = [1.0, 0.5, 0.0]
62 linewidths = [1.0, 3.0, 10.0]
63 compare_prec = 0.00001
65 field_name = 'vectoriel_field'
67 print "\nCreating stream_lines......."
68 stream_lines = StreamLinesOnField(proxy, EntityType.CELL,
69 field_name, 1, is_colored=True)
70 stream_tracer = stream_lines.Input
71 print "stream_tracer:", stream_tracer
72 stream_tracer.Input = None
73 stream_tracer.InitialStepLength = 0.00940275
74 stream_tracer.MaximumStreamlineLength = 140.373
75 stream_tracer.MaximumStepLength = 0.5319
76 stream_tracer.MinimumStepLength = 0.5319
77 stream_tracer.UpdatePipeline()
79 if stream_lines is None:
80 raise RuntimeError("Error!!! Presentation wasn't created...")
82 display_only(stream_lines, my_view)
86 print "\nChange Presentation Parameters..."
88 for reprCode in represents:
89 repr = RepresentationType.get_name(reprCode)
90 if reprCode == RepresentationType.VOLUME:
91 is_good = call_and_check(stream_lines, "Representation", repr, 0)
93 msg = "VOLUME representation must be not available for streamlines"
94 raise RuntimeError(msg)
96 call_and_check(stream_lines, "Representation", repr, 1)
99 setShaded(my_view, sha)
100 call_and_check(stream_lines, "Shading", sha, 1)
104 for lwi in linewidths:
105 call_and_check(stream_lines, "LineWidth", lwi, 1, compare_prec)
106 # save picture in file
107 # Construct image file name
108 pic_name = picturedir + "params_" + repr.replace(' ', '_') + "_any_" + \
109 str(sha) + "_" + str(lwi) + "." + pictureext
110 # Show and record the presentation
111 process_prs_for_test(stream_lines, my_view, pic_name)
113 for opa in opacities:
114 call_and_check(stream_lines, "Opacity", opa, 1, compare_prec)