puts "TODO OCC27711 ALL: Error: tolerance"
puts "========"
puts "OCC27711"
puts "========"
puts ""
#####################################
# Blend-on-blend corrupts the shape
#####################################

smallview

restore [locate_data_file bug27711.brep] s

clear
display s
fit
xwd $imagedir/${casename}_step_0.png

explode s e
blend result s 0.5 s_12 0.5 s_11
set bug_info [string trim [checkshape result]]
if {$bug_info != "This shape seems to be valid"} {
  puts "ERROR: Problem of test case functionality. Should be additionally investigated."
}
clear
display result
xwd $imagedir/${casename}_step_1.png

explode result e
# The correct command format should be following:
# blend res res 0.5 res_7 0.5 res_11
# but it does not work properly on win64 vc 10
# so for automated test case following command format was used:
blend result result 0.5 result_11
set bug_info [string trim [checkshape result]]
if {$bug_info != "This shape seems to be valid"} {
  puts "ERROR: Problem of test case functionality. Should be additionally investigated."
}
clear
display result
xwd $imagedir/${casename}_step_2.png

explode result e
blend result result 0.35 result_4 0.25 ressult_15 0.2 result_27
set bug_info [string trim [checkshape result]]
if {$bug_info != "This shape seems to be valid"} {
  puts "ERROR: OCC27711 is reproduced. Result of blend operation is WRONG."
}
checkmaxtol result -min_tol 1.e-3
clear
display result
xwd $imagedir/${casename}_step_3.png