0023200: Visualization - prevent multiple triangulating of a shape that already has been triangulated

Add new flag IsAutoTriangulated to Prs3d_Drawer. It is True by default.
If this flag is True automatic re-triangulation with deflection-check logic will be applied.
Else this feature will be disable and triangulation is expected to be computed by application itself.

Change the syntax of vdefalts command.
Add new parameter -autoTriang for check of AutoTriangulated functionality.

Adjust camera position in test case bugs/xde/bug23969

tests/bugs/vis/bug21753

@@ -7,7 +7,7 @@ puts "=================================="
 
 # set rough meshing parameters
 vinit
-vdefaults absDefl=10 devCoeff=0.1
+vdefaults -absDefl 10 -devCoeff 0.1
 
 puts "Displaying two equal cones, one with Phong shader"
 pcone p_gouraud 10 100 100

tests/bugs/vis/bug23200

@@ -0,0 +1,54 @@
+puts "============"
+puts "CR23200"
+puts "Check that the shape is automatic re-triangulated with deflection-check logic"
+puts "in case of enabled auto triangulation feature (its own triangulation can be lost)."
+puts "And it keeps its already computed triangulation"
+puts "in case of disabled auto triangulation feature."
+puts "============"
+puts ""
+
+set aDefaultShape $imagedir/${casename}_shape.png
+set aShapeAutoTr $imagedir/${casename}_shape_auto_triangulation.png
+set aShapeNotAutoTr $imagedir/${casename}_shape_not_auto_triangulation.png
+
+vinit View1
+vclear
+vaxo
+vsetdispmode 1
+vdefaults -autoTriang on
+psphere s 0.5
+vdisplay s
+vfit
+vdump $aDefaultShape
+
+vclear
+tclean s
+incmesh s 0.1 -a 45
+set tri_info [trinfo s]
+regexp { +([-0-9.+eE]+) +triangles} $tri_info full triIncmesh1
+
+vdisplay s
+set tri_info [trinfo s]
+regexp { +([-0-9.+eE]+) +triangles} $tri_info full triAutoTrShape
+vfit
+vdump $aShapeAutoTr
+
+vclear
+vdefaults -autoTriang off
+tclean  s
+incmesh s 0.1 -a 45
+set tri_info [trinfo s]
+regexp { +([-0-9.+eE]+) +triangles} $tri_info full triIncmesh2
+
+vdisplay s
+set tri_info [trinfo s]
+regexp { +([-0-9.+eE]+) +triangles} $tri_info full triNotAutoTrShape
+vfit
+vdump $aShapeNotAutoTr
+
+if {${triIncmesh1} == ${triAutoTrShape}} {
+  puts "ERROR : Test failed. Incorrect triangulation in case of enabled auto triangulation feature."
+}
+if {${triIncmesh2} != ${triNotAutoTrShape}} {
+  puts "ERROR : Test failed. Incorrect triangulation in case of disabled auto triangulation feature."
+}

tests/bugs/vis/bug23200_1

@@ -0,0 +1,23 @@
+puts "============"
+puts "CR23200"
+puts "Check that the shape doesn't have a shading presentation"
+puts "due to its triangulation isn't computed in case of disabled auto triangulation feature."
+puts "But in this case the shape should have special wireframe presentation."
+puts "============"
+puts ""
+
+vinit View1
+vclear
+vaxo
+vsetdispmode 1
+vdefaults -autoTriang off
+pcone c 0 5 10
+vdisplay c
+vfit
+
+set aColor [vreadpixel 200 77 rgb name]
+vdump $imagedir/${casename}_shape_pres.png
+
+if {"$aColor" != "GRAY75"} {
+  puts "Error: shading presentation of shape is incorrect"
+}

tests/bugs/vis/bug23886_1

@@ -12,7 +12,7 @@ vinit
 vdisplay s
 vfit
 
-vdefaults angDefl=1
+vdefaults -angDefl 1
 
 vsetdispmode s 1
 vdump ${imagedir}/${casename}_1.png

tests/bugs/vis/bug23886_2

@@ -12,7 +12,7 @@ vinit
 vdisplay s
 vfit
 
-vdefaults angDefl=1
+vdefaults -angDefl 1
 
 vsetdispmode s 1
 vdump ${imagedir}/${casename}_1.png

tests/bugs/vis/bug23886_3

@@ -12,7 +12,7 @@ vinit
 vdisplay s
 vfit
 
-vdefaults angDefl=1
+vdefaults -angDefl 1
 
 vsetdispmode s 1
 vdump ${imagedir}/${casename}_1.png

tests/bugs/xde/bug23969

@@ -12,7 +12,11 @@ XGetOneShape res_1 D_First
 vinit
 vsetdispmode 1
 vdisplay res_1
+
 vfit
+vdump $::imagedir/${::casename}_fit.png
+
+vviewparams -eye 106.849 -177.049 169.775 -at -70.2 -5.456e-015 -7.274 -up -0.408 0.408 0.816 -scale 3.048
 
 set ver_color [vreadpixel 157 104]
 if {$ver_color == "0 0 0 0"} {
@@ -34,5 +38,6 @@ set ver_color [vreadpixel 243 323]
 if {$ver_color == "0 0 0 0"} {
   puts "ERROR: OCC23969 is reproduced"
 }
+vdump $::imagedir/${::casename}_center.png
 
 set 3dviewer 1

tests/v3d/glsl/phong_couple

@@ -10,7 +10,7 @@ box b 2 0 0 1 0.5 0.25
 # draw box
 vinit View1
 vclear
-vdefaults absDefl=0.5
+vdefaults -absDefl 0.5
 vsetdispmode 1
 vaxo
 vdisplay f

tests/v3d/glsl/phong_fuse

@@ -9,7 +9,7 @@ tclean f
 # draw box
 vinit View1
 vclear
-vdefaults absDefl=0.5
+vdefaults -absDefl 0.5
 vsetdispmode 1
 vaxo
 vdisplay f

tests/v3d/glsl/phong_fuse2

@@ -9,7 +9,7 @@ tclean f
 # draw box
 vinit View1
 vclear
-vdefaults absDefl=0.5
+vdefaults -absDefl 0.5
 vsetdispmode 1
 vaxo
 vdisplay f