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Test for 0022778: Bug in BRepMesh
Test case bugs mesh bug22778 added. Test case bugs mesh bug23473 moved to systematic grid (mesh standard* X5)
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abv
kgv
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commit
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@ -1,31 +0,0 @@
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set Deflection 0.1
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set percent_max 5.
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# relative tolerance (%)
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set rel_tol 1
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set area_eps 0
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cpulimit 1000
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set nbwithouttri(All) 0
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set nbfree(All) 0
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set nbcross(All) 0
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set nbasync(All) 0
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set nbfreenodes(All) 0
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set bug_area ""
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set bug_withouttri ""
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set bug_freelinks ""
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set bug_cross ""
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set bug_async ""
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set bug_freenodes ""
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if { [array get Draw_Groups "TOPOLOGY Check commands"] == "" } {
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pload TOPTEST
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}
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if { [array get Draw_Groups "ZeViewer"] == "" } {
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pload AISV
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}
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set subgroup mesh
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43
tests/bugs/mesh/bug22778
Normal file
43
tests/bugs/mesh/bug22778
Normal file
@ -0,0 +1,43 @@
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# test for #22778: compare number of triangles in triangulation
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# produced on surface converted to nurbs, against number of triangles on
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# original analytic (spherical) surface
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puts "TODO #22778 All: too many triangles"
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# original face on spherical surface
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restore [locate_data_file bug22778_square.brep] s
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checkshape s
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incmesh s 0.001
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set trinfo_s [trinfo s]
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regexp {([0-9]+) triangles} $trinfo_s str nbtri_s
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regexp {deflection ([0-9.+e-]+)} $trinfo_s str defl_s
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# face converted to NURBS
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nurbsconvert r s
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checkshape r
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incmesh r 0.001
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set trinfo_r [trinfo r]
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regexp {([0-9]+) triangles} $trinfo_r str nbtri_r
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regexp {deflection ([0-9.+e-]+)} $trinfo_r str defl_r
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# check deflections
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if { $defl_s > 0.001 } {
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puts "Error: too big deflection on original face ($defl_s > 0.001)"
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}
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if { $defl_r > 0.001 } {
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puts "Error: too big deflection on NURBS face ($defl_r > 0.001)"
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}
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# compare number of triangles, allow twice more
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if { $nbtri_r > [expr 2. * $nbtri_s] } {
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puts "Error: too many triangles ($nbtri_r, while ~ $nbtri_s would be sufficient)"
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}
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# extra check: deflection on rough mesh on NURBS
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tclean r
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incmesh r 0.1
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set trinfo_r_01 [trinfo r]
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regexp {deflection ([0-9.+e-]+)} $trinfo_r_01 str defl_r_01
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if { $defl_r_01 > 0.1 } {
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puts "Error: too big deflection on NURBS face ($defl_r > 0.1)"
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}
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2376
tests/bugs/mesh/data/bug22778_square.brep
Normal file
2376
tests/bugs/mesh/data/bug22778_square.brep
Normal file
File diff suppressed because it is too large
Load Diff
@ -1,209 +0,0 @@
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# Get name of shape
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if { [string compare ${TheFileName} ""] != 0 } {
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set is_brep [regexp "\.brep" $TheFileName]
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if {$is_brep == 0} {
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set is_brep [regexp "\.rle" $TheFileName]
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}
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if {$is_brep == 1} {
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puts [brestore [locate_data_file $TheFileName] res]
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} else {
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if { [array get Draw_Groups "DE: STEP"] == "" } {
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pload XDE
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}
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stepread [locate_data_file ${TheFileName}] a *
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tpcompound res
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}
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}
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checkshape res
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tclean res
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if { [string compare $command "shading"] == 0 } {
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vinit
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vdisplay res
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vsetdispmode res 1
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if { [info exists view_mode] } {
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pload QAcommands
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QASetViewCharac ${scale} ${center_X} ${center_Y} ${proj_X} ${proj_Y} ${proj_Z} ${up_X} ${up_Y} ${up_Z} ${at_X} ${at_Y} ${at_Z}
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}
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vfit
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}
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if { [string compare $command "incmesh"] == 0 } {
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set os "ALL"
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if {[array get env os_type] != ""} {
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set os $env(os_type)
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}
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if { $parallel != 1 || [info exists count_parallel] == 0 } {
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set count_parallel 1
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}
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for {set i 1} {$i <= $count_parallel} {incr i} {
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tclean res
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puts "i = $i"
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incmesh res ${Deflection} ${parallel}
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}
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}
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if { [string compare $command "mesh"] == 0 } {
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set ResultList [mesh res_mesh res ${Deflection}]
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}
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# Collect TODO for area
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if { [string compare $bug_area ""] != 0 } {
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# The difference between square of geometry surface and square of mesh triangles should be less rel_tol value.
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# If rel_tol is 100 we suppose the mesh con not be created.
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if { $rel_tol == 100 } {
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puts "TODO $bug_area All:^\\s*Error : Meshing algo cannot create mesh.\\s*$"
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} else {
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puts "TODO $bug_area All:^\\s*Error : area by triangles differs from true area by \[-.0-9\]+ %\\s*$"
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}
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}
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# Collect TODO for number of triangles without mesh
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if { [string compare $bug_withouttri ""] != 0 } {
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# It may be different for different OS
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foreach os_withouttri [array names nbwithouttri] {
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if { $nbwithouttri($os_withouttri) != 0 } {
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puts "TODO $bug_withouttri $os_withouttri:^\\s*Error: Faces without triangulation: $nbwithouttri($os_withouttri)\\b\\s*"
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}
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}
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}
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# Collect TODO for number of free links
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if { [string compare $bug_freelinks ""] != 0 } {
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# It may be different for different OS
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foreach os_freelinks [array names nbfree] {
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if { $nbfree($os_freelinks) != 0 } {
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puts "TODO $bug_freelinks $os_freelinks:^\\s*Error: Free links: $nbfree($os_freelinks)\\b\\s*"
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}
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}
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}
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# Collect TODO for number of cross faces
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if { [string compare $bug_cross ""] != 0 } {
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# It may be different for different OS
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foreach os_cross [array names nbcross] {
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if { $nbcross($os_cross) != 0 } {
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puts "TODO $bug_cross $os_cross:^\\s*Error: Cross face errors: $nbcross($os_cross)\\b\\s*"
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}
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}
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}
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# Collect TODO for number of async edges
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if { [string compare $bug_async ""] != 0 } {
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# It may be different for different OS
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foreach os_async [array names nbasync] {
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if { $nbasync($os_async) != 0 } {
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puts "TODO $bug_async $os_async:^\\s*Error: Async edges: $nbasync($os_async)\\b\\s*"
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}
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}
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}
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# Collect TODO for number of free nodes
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if { [string compare $bug_freenodes ""] != 0 } {
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# It may be different for different OS
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foreach os_freenodes [array names nbfreenodes] {
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if { $nbfreenodes($os_freenodes) != 0 } {
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puts "TODO $bug_freenodes $os_freenodes:^\\s*Error: Free nodes: $nbfreenodes($os_freenodes)\\b\\s*"
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}
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}
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}
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# Number of triangles
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set tri 0
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# Number of nodes
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set nod 0
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# Deflection
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set def 0
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# Collect number of triangles, number ofof nodes and deflection.
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if { [string compare $command "mesh"] != 0 } {
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set full [trinfo res]
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regexp "(\[0-9\]+) +triangles.*\[^0-9]\(\[0-9\]+) +nodes.*deflection +(\[0-9\]|\.+)" $full reg_out tri nod def
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} else {
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set full [split $ResultList "()"]
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set tri [lindex [lindex $full 2] 0]
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set lin [lindex [lindex $full 4] 0]
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set nod [lindex [lindex $full 6] 0]
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}
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if { $tri == 0 || $nod == 0 } {
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puts " "
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puts "Error : Meshing algo cannot create mesh."
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}
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puts " "
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puts "XML property: triangles $tri"
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puts "XML property: nodes $nod"
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puts " "
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# Check if area of triangles is valid
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proc CheckTriArea {shape {eps 0}} {
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upvar #0 $shape a
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set area [triarea a $eps]
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set t_area [lindex $area 0]
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set g_area [expr abs([lindex $area 1])]
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puts "area by triangles: $t_area"
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puts "area by geometry: $g_area"
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expr ($t_area - $g_area) / $g_area * 100
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}
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puts "\nChecking triangulation area (triarea command)..."
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set rel_err [expr abs([CheckTriArea res $area_eps])]
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if { $rel_err > $rel_tol } {
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puts "Error : area by triangles differs from true area by $rel_err %"
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} else {
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if { $rel_tol > 1 && $rel_tol < 100 } {
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puts "Error: Improvement: The current area difference is $rel_err instead of $rel_tol"
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}
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}
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# Check if topology of mesh is valid
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puts "\nChecking mesh topology (tricheck command)..."
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set l [tricheck res]
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if {$l != ""} {
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puts $l
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set withouttri [regsub -all "face \[0-9\]+ has no triangulation" $l "FOUND" ll]
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if { $withouttri != 0 } {
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puts "Error: Faces without triangulation: $withouttri"
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}
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if { [regexp "Free_links +(\[0-9\]+) +Cross_face_errors +(\[0-9\]+) +Async_edges +(\[0-9\]+) +Free_nodes +(\[0-9\]+)" $l full freelinks crossfaces asyncedges freenodes] } {
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if { $freelinks != 0 } {
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puts "Error: Free links: $freelinks"
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}
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if { $crossfaces != 0 } {
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puts "Error: Cross face errors: $crossfaces"
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}
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if { $asyncedges != 0 } {
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puts "Error: Async edges: $asyncedges"
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}
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if { $freenodes != 0 } {
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puts "Error: Free nodes: $freenodes"
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}
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}
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}
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if { [info exists imagedir] == 0 } {
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set imagedir .
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}
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if { [info exists test_image ] == 0 } {
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set test_image photo
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}
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if { [string compare $command "shading"] == 0 } {
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vdump $imagedir/${test_image}.png
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} else {
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isos 0
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smallview
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donly res
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fit
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triangles res
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xwd $imagedir/${test_image}.png
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}
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puts ""
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puts "TEST COMPLETED"
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puts ""
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4
tests/bugs/mesh/bug23473 → tests/mesh/data/standard/X5
Executable file → Normal file
4
tests/bugs/mesh/bug23473 → tests/mesh/data/standard/X5
Executable file → Normal file
@ -1,3 +1,3 @@
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set TheFileName bug23473_Scheibe_1_f867.brep
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puts "bug23473"
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set command shading
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set TheFileName bug23473_Scheibe_1_f867.brep
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