0023580: [Regression] BRepMesh 6.5.4 produces visually incorrect view

[occt.git] / tests / bugs / mesh / end

# Get name of shape

if { [string compare ${TheFileName} ""] != 0 } {
    set is_brep [regexp "\.brep" $TheFileName]
    if {$is_brep == 0} {
        set is_brep [regexp "\.rle" $TheFileName]
    }
    if {$is_brep == 1} {
        puts [brestore [locate_data_file $TheFileName] res]
    } else {
        if { [array get Draw_Groups "DE: STEP"] == "" } {
	    pload XDE
        }
        
        stepread [locate_data_file ${TheFileName}] a *
        tpcompound res
    }
}

puts [checkshape res]

tclean res

if { [string compare $command "shading"] == 0 } {
    vinit
    vdisplay res
    vsetdispmode res 1
    if { [info exists view_mode] } {
	pload QAcommands
	QASetViewCharac ${scale} ${center_X} ${center_Y} ${proj_X} ${proj_Y} ${proj_Z} ${up_X} ${up_Y} ${up_Z} ${at_X} ${at_Y} ${at_Z}
    }
    vfit
}

if { [string compare $command "incmesh"] == 0 } {
    set os "ALL"
    if {[array get env os_type] != ""} {
	set os $env(os_type)
    }
    if { $parallel != 1 || [info exists count_parallel] == 0 } {
       set count_parallel 1
    }
    for {set i 1} {$i <= $count_parallel} {incr i} {
    	tclean res
	puts "i = $i"
    	incmesh res ${Deflection} ${parallel}
    }
}

if { [string compare $command "mesh"] == 0 } {
    set ResultList [mesh res_mesh res ${Deflection}]
}

# Collect TODO for area
if { [string compare $bug_area ""] != 0 } {
# The difference between square of geometry surface and square of mesh triangles should be less rel_tol value.
# If rel_tol is 100 we suppose the mesh con not be created.
    if { $rel_tol == 100 } {
	puts "TODO $bug_area All:^\\s*Error  : Meshing algo cannot create mesh.\\s*$"
    } else {
	puts "TODO $bug_area All:^\\s*Error   : area by triangles differs from true area by \[-.0-9\]+ %\\s*$"
    }
}

# Collect TODO for number of triangles without mesh
if { [string compare $bug_withouttri ""] != 0 } {
# It may be different for different OS
    foreach os_withouttri [array names nbwithouttri] {
	if { $nbwithouttri($os_withouttri) != 0 } { 
	    puts "TODO $bug_withouttri $os_withouttri:^\\s*Error: Faces without triangulation: $nbwithouttri($os_withouttri)\\b\\s*"
	}
    }
}

# Collect TODO for number of free links
if { [string compare $bug_freelinks ""] != 0 } {
# It may be different for different OS
    foreach os_freelinks [array names nbfree] {
	if { $nbfree($os_freelinks) != 0 } { 
	    puts "TODO $bug_freelinks $os_freelinks:^\\s*Error: Free links: $nbfree($os_freelinks)\\b\\s*"
	}
    }
}

# Collect TODO for number of cross faces
if { [string compare $bug_cross ""] != 0 } {
# It may be different for different OS
    foreach os_cross [array names nbcross] {
	if { $nbcross($os_cross) != 0 } { 
	    puts "TODO $bug_cross $os_cross:^\\s*Error: Cross face errors: $nbcross($os_cross)\\b\\s*"
	}
    }
}

# Collect TODO for number of async edges
if { [string compare $bug_async ""] != 0 } {
# It may be different for different OS
    foreach os_async [array names nbasync] {
	if { $nbasync($os_async) != 0 } { 
	    puts "TODO $bug_async $os_async:^\\s*Error: Async edges: $nbasync($os_async)\\b\\s*"
	}
    }
}

# Collect TODO for number of free nodes
if { [string compare $bug_freenodes ""] != 0 } {
# It may be different for different OS
    foreach os_freenodes [array names nbfreenodes] {
	if { $nbfreenodes($os_freenodes) != 0 } { 
	    puts "TODO $bug_freenodes $os_freenodes:^\\s*Error: Free nodes: $nbfreenodes($os_freenodes)\\b\\s*"
	}
    }
}

# Number of triangles
set tri 0
# Number of nodes
set nod 0
# Deflection
set def 0

# Collect number of triangles, number ofof nodes and deflection.
if { [string compare $command "mesh"] != 0 } {
    set full [trinfo res]
    regexp "(\[0-9\]+) +triangles.*\[^0-9]\(\[0-9\]+) +nodes.*deflection +(\[0-9\]|\.+)" $full reg_out tri nod def
} else {
    set full [split $ResultList "()"]
    set tri [lindex [lindex $full 2] 0]
    set lin [lindex [lindex $full 4] 0]
    set nod [lindex [lindex $full 6] 0]
}

if { $tri == 0 || $nod == 0 } {                                                                     
    puts " "
    puts "Error  : Meshing algo cannot create mesh."    
}             

puts " "
puts "XML property: triangles $tri"
puts "XML property: nodes $nod"
puts " "

# Check if area of triangles is valid
proc CheckTriArea {shape {eps 0}} {
  upvar #0 $shape a
  set area [triarea a $eps]
  set t_area [lindex $area 0]
  set g_area [expr abs([lindex $area 1])]
  puts "area by triangles: $t_area"
  puts "area by geometry:  $g_area"
  expr ($t_area - $g_area) / $g_area * 100
}

puts "\nChecking triangulation area (triarea command)..."
set rel_err [expr abs([CheckTriArea res $area_eps])]
if { $rel_err > $rel_tol } {
    puts "Error   : area by triangles differs from true area by $rel_err %"
} else {
    if { $rel_tol > 1 && $rel_tol < 100 } {
	puts "Error: Improvement: The current area difference is $rel_err instead of $rel_tol"
    }
}

# Check if topology of mesh is valid
puts "\nChecking mesh topology (tricheck command)..."
set l [tricheck res]
if {$l != ""} {
    puts $l
    set withouttri [regsub -all "face \[0-9\]+ has no triangulation" $l "FOUND" ll]
    if { $withouttri != 0 } {
	puts "Error: Faces without triangulation: $withouttri"
    }
    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] } {
	if { $freelinks != 0 } {
	    puts "Error: Free links: $freelinks"
	}
	if { $crossfaces != 0 } {
	    puts "Error: Cross face errors: $crossfaces"
	}
	if { $asyncedges != 0 } {
	    puts "Error: Async edges: $asyncedges"
	}
	if { $freenodes != 0 } {
	    puts "Error: Free nodes: $freenodes"
	}
    }
}

if { [info exists imagedir] == 0 } {
   set imagedir .
}
if { [info exists test_image ] == 0 } {
   set test_image photo
}

if { [string compare $command "shading"] == 0 } {
    vdump $imagedir/${test_image}.png
} else {
    isos 0
    smallview
    donly res
    fit
    triangles res
    xwd $imagedir/${test_image}.png
}

puts ""
puts "TEST COMPLETED" 
puts ""