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https://git.dev.opencascade.org/repos/occt.git
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f751596e46
Redesign of selection mechanism: - implemented 3-level BVH tree for selection; - selection now calculates in 3D space; - intersection tests were moved to SelectMgr_BaseFrustum descendants; - removed .cdl files in Select3D and .cdl related to selection in MeshVS; - SelectMgr_ViewerSelectors are now shared between local and global contexts; - transformations of sensitive entities are now stored in SelectMgr_SelectableObject only. Sensitive entities are independent from transformations, it is applied to SelectMgr_SelectingVolumeManager instance only; - connected and multiple connected interactive objects are now represented by their child objects only for SelectMgr_SelectionManager; - if interactive object has child objects, they will be stored as separate objects in SelectMgr_SelectionManager now. - test cases bugs/vis/bug24623_1, bug24623_2, bug24623_3, bug24623_4 to test performance and memory issues.
96 lines
2.6 KiB
Plaintext
96 lines
2.6 KiB
Plaintext
puts "============"
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puts "OCC24623_1"
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puts "============"
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puts ""
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#######################################################################
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puts "Visualization - improve selection mechanism"
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# tests performance of selection algorithm. Creates a grid of spheres with
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# size DISCRETISATION * DISCRETISATION. To get representative performance
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# test results, increase the size of grid in DISCRETISATION and check time
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# measurments in comparsion to previous OCCT versions. You may also check
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# the time of selection when all BVH trees are built via uncommenting
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# the code in "Start building all trees" section.
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#######################################################################
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set DISCRETISATION 10
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set RADIUS 100
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pload ALL
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set aStep [expr $RADIUS * 0.1]
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# unset aNames
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list aNames
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set aX 0
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set aY 0
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for {set i 0} {$i < $DISCRETISATION} {incr i} {
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for {set j 0} {$j < $DISCRETISATION} {incr j} {
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set aCurrName "sph"
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append aCurrName [expr $i * $DISCRETISATION + $j]
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lappend aNames $aCurrName
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psphere $aCurrName $RADIUS
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set aX [expr $i * ($aStep + $RADIUS)]
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set aY [expr - $j * ($aStep + $RADIUS)]
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ttranslate $aCurrName $aX $aY 0
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}
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}
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set aSpheresNbInfo "Total spheres number:"
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append aSpheresNbInfo [expr $DISCRETISATION * $DISCRETISATION]
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puts $aSpheresNbInfo
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vinit
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set aMemInit [meminfo h]
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puts "Initial mem: [expr $aMemInit / (1024 * 1024)] MiB ([expr $aMemInit])"
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vsetdispmode 1
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set aMemInit [meminfo h]
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vdisplay {*}$aNames
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vfit
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puts "Selection of spheres without BVH trees built:"
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chrono aTimer reset
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chrono aTimer start
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vmoveto 224 269
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chrono aTimer stop
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chrono aTimer show
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puts ""
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puts "Applying the transformations..."
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vtranslateview 1 0 0
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vrotate 100 100 100
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puts ""
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puts "Selection time with transformations applied without BVH built:"
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chrono aTimer reset
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chrono aTimer start
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vmoveto 102 224
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chrono aTimer stop
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chrono aTimer show
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# puts ""
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# puts "Start building all trees..."
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# vtop
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# vfit
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# set aStartPt [expr round(400 / double($DISCRETISATION)) + 5]
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# set aPtStep [expr round(double(round(100*(400 / double($DISCRETISATION))))/100 * 2)]
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# for {set i 0} {$i < $DISCRETISATION / 2} {incr i} {
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# for {set j 0} {$j < $DISCRETISATION / 2} {incr j} {
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# set aX [expr $aStartPt + $i * $aPtStep]
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# set aY [expr $aStartPt + $j * $aPtStep]
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# vmoveto $aX $aY 1
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# }
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# }
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# puts ""
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# puts "Selection time with all BVHs built:"
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# chrono aTimer reset
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# chrono aTimer start
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# vmoveto 200 200
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# chrono aTimer stop
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# chrono aTimer show
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set aMemSel [meminfo h]
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puts "Selection mem: [expr $aMemSel / (1024 * 1024)] MiB ([expr $aMemSel])"
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checkcolor 115 221 0 1 1
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