1 # Copyright (C) 2010-2016 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/B0 case
21 # Create 3D Viewer and test set view properties for Scalar Map presentation
22 # Author: POLYANSKIKH VERA
23 from paravistest import *
24 from presentations import *
25 from pvsimple import *
29 # Directory for saving snapshots
30 picturedir = get_picture_dir("3D_viewer/B0")
32 # Add path separator to the end of picture path if necessery
33 if not picturedir.endswith(os.sep):
37 my_view = GetRenderView()
41 theFileName = datadir + "fra.med"
42 print " --------------------------------- "
43 print "file ", theFileName
44 print " --------------------------------- "
46 OpenDataFile(theFileName)
47 proxy = GetActiveSource()
49 raise RuntimeError("Error: can't import file.")
53 represents = [RepresentationType.POINTS, RepresentationType.WIREFRAME,\
54 RepresentationType.SURFACE, RepresentationType.VOLUME]
56 shadings = ["Flat", "Gouraud"]
57 opacities = [1.0, 0.5, 0.0]
58 linewidths = [1.0, 3.0, 10.0]
59 compare_prec = 0.00001
63 field_name = 'VITESSE'
65 print "\nCreating scalar map.......",
66 scalar_map = ScalarMapOnField(proxy, EntityType.NODE, field_name, 1)
67 if scalar_map is None:
68 raise RuntimeError("Error!!! Presentation wasn't created...")
70 display_only(scalar_map, my_view)
74 print "\nChange Presentation Parameters..."
77 for reprCode in represents:
78 repr = RepresentationType.get_name(reprCode)
79 call_and_check(scalar_map, "Representation", repr, 1)
81 if shr > 0 and reprCode != RepresentationType.POINTS:
82 if shrinked_sm is None:
83 scalar_map.Visibility = 1
84 shrink_filter = Shrink(scalar_map.Input)
85 shrinked_sm = GetRepresentation(shrink_filter)
86 shrink_filter.ShrinkFactor = 0.8
87 shrink_filter.UpdatePipeline()
88 shrinked_sm.ColorArrayName = scalar_map.ColorArrayName[0:2]
89 lookup_table = scalar_map.LookupTable
90 shrinked_sm.LookupTable = lookup_table
92 scalar_map.Visibility = 0
93 shrinked_sm.Representation = scalar_map.Representation
94 shrinked_sm.Visibility = 1
95 shape_to_show = shrinked_sm
97 if shrinked_sm is not None:
98 shrinked_sm.Visibility = 0
99 scalar_map.Visibility = 1
100 shape_to_show = scalar_map
104 setShaded(my_view, sha)
105 call_and_check(shape_to_show, "Interpolation", sha, 1)
108 for opa in opacities:
109 call_and_check(shape_to_show, "Opacity", opa, 1, compare_prec)
111 for lwi in linewidths:
112 call_and_check(shape_to_show, "LineWidth", lwi, 1,
116 # save picture in file
117 # Construct image file name
118 opa = str(opa).replace('.', '')
119 lwi = str(lwi).replace('.', '')
120 pic_name = picturedir + "params_" + repr + "_" + str(shr) + "_" + \
121 str(sha) + "_" + str(opa) + "_" + str(lwi) + "." + pictureext
122 # Show and record the presentation
123 WriteImage(pic_name, view=my_view, Magnification=1)