0027015: Sewing returns invalid shape if some faces are nearly plane cones

[occt.git] / tests / bugs / modalg_6 / bug27190

puts "================"
puts "OCC27190"
puts "================"
puts ""
#######################################################################
# IntPatch_ImpPrmIntersection algorithm does not split intersection curve by the seam-edge of the quadric
#######################################################################

set MaxTol 1.e-3
set GoodNbCurv 11

restore [locate_data_file bug27167_pipe.brep] a1
pcylinder a2 100 300

explode a1 f
explode a2 f

set log [bopcurves a1_2 a2_1 -2d]

regexp {Tolerance Reached=+([-0-9.+eE]+)\n+([-0-9.+eE]+)} ${log} full Toler NbCurv

if {${Toler} > ${MaxTol}} {
  puts "Error: Tolerance is too big!"
}

if {${NbCurv} != ${GoodNbCurv}} {
  puts "Error: Curve Number is bad!"
}

set Period [dval 2*pi]

for {set i 1} {$i <= ${NbCurv}} {incr i} {
  bounds c2d2_$i u1 u2
  
  2dcvalue c2d2_$i u1 x1 y
  2dcvalue c2d2_$i u2 x2 y
  
  set X1 [dval x1/$Period]
  set X2 [dval x2/$Period]
  
  # Example: x1 = 5.3*pi, x2 = 12.8*pi ==> [x1, x2] intersects seam
  if { [expr abs($X1 - $X2) > 1.0] } {
    puts "Error: c2d2_$i intersects seam (0.0 or $Period): x1=[dval x1], x2=[dval x2]"
    continue;
  }

  set iX1 [expr floor($X1)]
  set iX2 [expr floor($X2)]
  
  # Examples:
  #   1. x1 = 5*pi/2, x2 = 3*pi ==> [x1, x2] does not intersect seam and
  #     ($iX1 == $iX2 == 0). I.e. if ($iX1 == $iX2) then seam is not intersected.
  #   2. x1 = 3*pi, x2 = 5*pi ==> [x1, x2] intersects seam and
  #     ($iX1 == 1, $iX2 == 2) ==> ($iX1 != $iX2).
  #   3. x1 = pi/4, x2 = 2*pi ==> [x1, x2] does not intersect seam and
  #     ($iX1 == 0, $iX2 == 1) ==> ($iX1 != $iX2) and ($X2 == $iX2 = 1)
  if { ($iX1 != $iX2) && ($X2 != $iX2) } {
    puts "Error: c2d2_$i intersects seam (0.0 or $Period): x1=[dval x1], x2=[dval x2]"
  }
}

smallview
don c_*
fit

checkview -screenshot -2d -path ${imagedir}/${test_image}.png