puts "========"
puts "OCC28261"
puts "========"
puts ""
#################################################
# Chamfer fails on edges placed on quasi-planar cone
#################################################

brestore [locate_data_file bug28261_face.brep] f
brestore [locate_data_file bug28261_hexaprism.brep] h

explode f E
mkcurve c f_1
cvalue c 0 x y z dx dy dz
revol rev f $x $y $z $dx $dy $dz 360

bcut r rev h
savehistory hh

explode h f
explode h_7 E

chamf r r h_7_1 0.1  h_7_2 0.1  h_7_3 0.1  h_7_4 0.1  h_7_5 0.1  h_7_6 0.1

explode rev f
modified ff hh rev_1
explode ff e

chamf result r ff_1 0.1  ff_2 0.1  ff_3 0.1  ff_4 0.1  ff_5 0.1  ff_6 0.1  ff_7 0.1

checkshape result
checknbshapes result -solid 1 -face 27 -edge 54 -vertex 31
checkprops result -v 17158.2 -s 4072.76 -deps 1.e-7

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