puts "========"
puts "OCC25858"
puts "========"
puts ""
##########################################################################################################
# Incorrect result of open offset on single edge based on BSpline curve
##########################################################################################################

restore [locate_data_file bug25858_hf2d.brep] ff

invert ff
explode ff

smallview
donly ff_1
fit
display ff

openoffset res ff 1 0.1
renamevar res_1 result

set length 0.879164

set nbshapes_expected "
Number of shapes in shape
 VERTEX    : 2
 EDGE      : 1
 WIRE      : 1
 FACE      : 0
 SHELL     : 0
 SOLID     : 0
 COMPSOLID : 0
 COMPOUND  : 0
 SHAPE     : 4
"
checknbshapes result ${nbshapes_expected} 1 "Result of open offset on single edge based on BSpline curve"

set only_screen_axo 1