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Fixes problem with vertical curve slopes

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This commit is contained in:
Richard Brice
2023-11-17 08:03:03 -08:00
parent 162db2e588
commit afb8375e70
1 changed files with 2 additions and 2 deletions
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src/ifcgeom/mapping/IfcCurveSegment.cpp
+2 -2
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@@ -821,9 +821,9 @@ class curve_segment_evaluator {
m.col(3) = Eigen::Vector4d(x, y, 0.0, 1.0);
} else if (segment_type == ST_VERTICAL) {
// rotate about the Y-axis (slope along u is dx, slope vertically is dy, vertical position is y)
m.col(0) = Eigen::Vector4d(dx, 0, -dy, 0);
m.col(0) = Eigen::Vector4d(dx, 0, dy, 0);
m.col(1) = Eigen::Vector4d(0, 1, 0, 0);
m.col(2) = Eigen::Vector4d(dy, 0, dx, 0);
m.col(2) = Eigen::Vector4d(-dy, 0, dx, 0);
m.col(3) = Eigen::Vector4d(0, 0, y, 1.0); // y is an elevation so store it as z
} else if (segment_type == ST_CANT) {
Logger::Warning(std::runtime_error("Use of IfcPolynomialCurve for cant is not supported"));