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occt/tests/bugs/fclasses/bug31381
ifv f732ea1ab5 0031381: Foundation Classes -wrong evaluations for rational BSpline curves using Adaptor curves
BSplCLib_Cache.cxx - it is forbidden zeroing derivatives for rational splines when derivative order more than degree

bug31381 - test case added
2020-03-03 17:49:09 +03:00

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puts "# ============"
puts "# 0031381: Foundation Classes - wrong evaluations for rational BSpline curves using Adaptor curves "
puts "# ============"
puts ""
puts "Eliminate output of approxcurve command"
puts "REQUIRED ALL: Error 4.32754e-05"
circle c 0 0 1
puts "Get rational BSpline curve of degree 2"
convert c c
puts "Get offset curve to force calculation of D3 for base curve when algorithm needs D2 for offset"
offset oc c -.5
puts "Approximate offset curve with continuity C2"
approxcurve ac oc 1.e-4 2 5 25
checklength ac -l 3.1415850499856011