0031440: Visualization - Impossible to make common behaviour for multi-selection in viewer

A special mode for the selecting by polygon is added to select only completely overlapping objects.

In order to track the sensitives that were included completely by defined polygon, the boundary points of the polygonal frustrum are stored in the variable myBoundaryPoints.

If an sensitive intersects with at least one of the frustrums from myFrustums, then checking whether this object intersects with borders using the isIntersectBoundary method; if not, then the sensitive were included completely by defined polygon.

Because the polygon can be concave, then to check the sensitive were included completely by defined polygon, it is not enough to check of all its points, it is necessary that the edges of the sensitive do not intersect polygonal frustrum. To do this, for polygonal selection, a call to the Overlaps method for a point was replaced by a call to a segment where necessary.

bugs/vis/bug31440: test case added

tests/bugs/vis/bug27008

@@ -15,7 +15,7 @@ vsetdispmode m 2
 
 vselmode m 8 1
 vselect 0 0 409 409 0 409
-if { [vnbselected] != "56748" } { puts "Error: the number of selected elements differs for mode 8" }
+if { [vnbselected] != "55607" } { puts "Error: the number of selected elements differs for mode 8" }
 vdump $imagedir/${casename}_mode_8.png
 
 vselect 0 0

tests/bugs/vis/bug31440

@@ -0,0 +1,34 @@
+puts "============"
+puts "0031440: Visualization - Impossible to make common behaviour for multi-selection in viewer"
+puts "============"
+puts ""
+
+vinit View1
+vpoint radP1 0 0 0
+vpoint radP2 50 50 0
+vpoint radP3 100 0 0
+vcircle circle radP1 radP2 radP3 1
+vfit
+
+vselect 50 300 150 300 150 100 50 100
+if {[vreadpixel 120 200 rgb name] != "DARKGOLDENROD"} { puts "ERROR: the circle is selected with no overlap mode activated" }
+vselect 0 0
+
+vselect 50 300 360 300 360 100 50 100
+if {[vreadpixel 120 200 rgb name] != "GRAY73"} { puts "ERROR: the circle is not selected" }
+vselect 0 0
+vclear
+
+box b 0 0 0 1 1 1
+vdisplay b 
+vfit
+vselmode b 2 1
+vviewparams -scale 500
+
+vdrawparray line polylines v 10 9 0 v 400 9 0 v 400 209 0 v 200 109 0 v 10 209 0 v 10 9 0
+vdisplay line -2d
+vsetcolor line red
+
+vselect 10 400 400 400 400 200 200 300 10 200
+
+vdump ${imagedir}/${casename}.png