OCCT

puts "================"
puts "OCC23830"
puts "================"
puts ""
#######################################################################
# BRepExtrema_DistShapeShape does not find intersection of face with edge
#######################################################################

restore [locate_data_file bug23830_face.brep] s
mksurface s s

set Indices {1 2 6 7 11 16 21 36 41 42}

foreach i ${Indices} {
  restore [locate_data_file bug23830_circle$i.brep] c_$i
  mkcurve c_$i c_$i
  extrema c_$i s
  if { [isdraw ext_1] } {
    mkedge e ext_1
    regexp {Mass +: +([-0-9.+eE]+)} [lprops e] full l
    if {$l > 2.5e-12} {
      puts "Error: invalid result"
    }
    renamevar ext_1 r_$i
  }
}

smallview
l
l
l
l
l
l
l
l
erase
display s
foreach i ${Indices} { if {[isdraw r_$i]} {display r_$i} }
fit
checkview -screenshot -2d -path ${imagedir}/${test_image}.png