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Fixes problem with evaluating point on vertical alignment

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Fixes evaluation of IfcLine parent curve for IfcGradientCurve. See https://github.com/IfcOpenShell/IfcOpenShell/discussions/5587
This commit is contained in:
Richard Brice
2024-10-20 08:19:49 -07:00
parent 18d5957424
commit 647e379c69
1 changed files with 8 additions and 0 deletions
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src/ifcgeom/mapping/IfcCurveSegment.cpp
+8
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@@ -696,6 +696,14 @@ class curve_segment_evaluator {
auto pcDx = dr[0]; auto pcDx = dr[0];
auto pcDy = dr[1]; auto pcDy = dr[1];
if (segment_type_ == ST_VERTICAL && placement_) {
// the general algorithm for mapping parent curve onto curve segment doesn't
// exactly work for IfcLine. This is easily overcome by usnig the curve segment
// placement for the IfcLine direction
pcDx = (*placement_)(0, 0);
pcDy = (*placement_)(1, 0);
}
if (segment_type_ == ST_HORIZONTAL || segment_type_ == ST_VERTICAL || segment_type_ == ST_CANT) { if (segment_type_ == ST_HORIZONTAL || segment_type_ == ST_VERTICAL || segment_type_ == ST_CANT) {
std::function<double(double)> convert_u; std::function<double(double)> convert_u;
if (segment_type_ == ST_HORIZONTAL || segment_type_ == ST_CANT) { if (segment_type_ == ST_HORIZONTAL || segment_type_ == ST_CANT) {