puts "================"
puts "OCC13"
puts "================"
puts ""
##################################################
## It is impossible to intersect two surfaces
##################################################

restore [locate_data_file OCC13-1.draw] su1 
############### checkshape su1 # is not a topological shape
restore [locate_data_file OCC13-2.draw] su2
############### checkshape su2 # is not a topological shape

#Try to intersect two surfaces with tolerance 0.1
#note that distance between shapes is about 0.005942345501409

catch {intersect res su1 su2 0.1 } result
set nom 0
  set j 1
   repeat 10 {
    set che [whatis res_$j]
     set che1 [whatis res_$j]
      set err [lindex $che [expr [llength $che] - 1]]
       set err1 [lindex $che1 [expr [llength $che1] - 2]]
        if { $err != "curve" && $err1 != "3d"} {
          break
        } else {
          set nom [expr $nom + 1]
          if { $j == 1 } {
            set info [length res_$j]
            regexp {The length res_1 is+ +([-0-9.+eE]+)} $info full ll
            set lcheck_1 5.6627572343058755e-05
            if { [expr 1.*abs($lcheck_1 - $ll)/$lcheck_1] > 0.01 } {
              puts "Error : The lenght of result shape is $ll"
            } else {
              puts "OK : The length of result shape is ok"
            }
          }
          if { $j == 2 } {
            set info [length res_$j]
            regexp {The length res_2 is+ +([-0-9.+eE]+)} $info full ll
            set lcheck_2 5.5763870549528719e-05
            if { [expr 1.*abs($lcheck_2 - $ll)/$lcheck_2] > 0.01 } {
              puts "Error : The lenght of result shape is $ll"
            } else {
              puts "OK : The length of result shape is ok"
            }
          }
        incr j }
   }
if { $nom == 0} {
  puts "Error : Intersection was made WRONGLY"
}