puts "========="
puts "OCC24585"
puts "========="
puts ""
###########################################################
# Wrong pcurve of the section curve
###########################################################

set ExpectedTol 9.8986150909815383e-05
set NbCurv_OK 1

restore [locate_data_file bug24585_b1.brep] b1
restore [locate_data_file bug24585_b2.brep] b2

mksurface s1 b1
bounds s1 U1f_exp U1l_exp V1f_exp V1l_exp

set log [bopcurves b1 b2 -2d]

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

if {${NbCurv} != ${NbCurv_OK}} {
  puts "Error: ${NbCurv_OK} curve(s) expected, but ${NbCurv} found."
}

set tol_abs 0.0
set tol_rel 0.01
checkreal "Tolerance Reached" ${Toler} ${ExpectedTol} ${tol_abs} ${tol_rel}

bounds c2d1_1 U1 U2
2dcvalue c2d1_1 U1 U_begin V_begin
2dcvalue c2d1_1 U2 U_end V_end

#Theoretically, c2d1_1 must cover U-diapason of surface s1 fully.

set delta_f [dval U1f_exp-U_begin]

#ATTENTION!!! U_begin must be strictly equal U1f_exp (without any tolerance)
if {${delta_f} != 0} {
  puts "Error: Bad value. U_begin = [dval U_begin], Ufirst = [dval U1f_exp]."
} else {
  puts "OK: Good value. U_begin matches with Ufirst of surface."
}

puts ""

set delta_l [dval U1l_exp-U_end]

#ATTENTION!!! U_end must be strictly equal U1l_exp (without any tolerance)
if {${delta_l} != 0} {
  puts "Error: Bad value. U_end = [dval U_end], Ulast = [dval U1l_exp]."
} else {
  puts "OK: Good value. U_end matches with Ulast of surface."
}

puts ""
puts "Check if tangents in first and last point of line have the same directions"

#See bug#26752
cvalue c_1 U1 xx yy zz dx1 dy1 dz1
cvalue c_1 U2 xx yy zz dx2 dy2 dz2

set DP [dval dx1*dx2+dy1*dy2+dz1*dz2]
if {${DP} < 0} {
  puts "Error: Tangents are reversed. Bug 26752 is reproduced."
} else {
  puts "OK: Tangents are not reversed."
}
