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Fixes problem evaluating gradient and segmented reference curves with start locations offset from start of base curve.

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This commit is contained in:
Richard Brice
2025-03-31 16:16:47 -07:00
parent 9895302c9d
commit f0b5e93737
1 changed files with 2 additions and 6 deletions
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src/ifcgeom/function_item_evaluator.cpp
+2 -6
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@@ -101,9 +101,7 @@ struct gradient_fn_evaluator : public fn_evaluator {
double end() const override { return fn_->end(); }
Eigen::Matrix4d evaluate(double u) const override {
// u is distance from start of vertical.
// add vertical->start() to u to get distance from start of horizontal
auto xy = horizontal_evaluator_.evaluate(u + start_);
auto xy = horizontal_evaluator_.evaluate(u);
auto uz = vertical_evaluator_.evaluate(u);
// curvature is stored in row 3 - capture it and remove it from the xy and uz matrices
@@ -148,9 +146,7 @@ struct cant_fn_evaluator : public fn_evaluator {
double end() const override { return fn_->end(); }
Eigen::Matrix4d evaluate(double u) const override {
// u is distance from start of cant curve
// add cant->start() to u to get the distance from start of gradient curve
auto g = gradient_evaluator_.evaluate(u + start_);
auto g = gradient_evaluator_.evaluate(u);
auto c = cant_evaluator_.evaluate(u);