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This commit is contained in:
Thomas Krijnen
2023-03-21 20:15:01 +01:00
parent cfb0eda067
commit c78b2893de
194 changed files with 105325 additions and 7785 deletions
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src/ifcgeom/mapping/IfcEllipse.cpp
+26 -31
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@@ -17,42 +17,37 @@
* *
********************************************************************************/
#include <gp_Trsf.hxx>
#include <gp_Trsf2d.hxx>
#include <Geom_Ellipse.hxx>
#include "../ifcgeom/IfcGeom.h"
#include "mapping.h"
#define mapping POSTFIX_SCHEMA(mapping)
using namespace ifcopenshell::geometry;
#define Kernel MAKE_TYPE_NAME(Kernel)
bool IfcGeom::Kernel::convert(const IfcSchema::IfcEllipse* l, Handle(Geom_Curve)& curve) {
double x = l->SemiAxis1() * getValue(GV_LENGTH_UNIT);
double y = l->SemiAxis2() * getValue(GV_LENGTH_UNIT);
if (x < ALMOST_ZERO || y < ALMOST_ZERO) {
Logger::Message(Logger::LOG_ERROR, "Radius not greater than zero for:", l);
return false;
taxonomy::item* mapping::map_impl(const IfcSchema::IfcEllipse* inst) {
double x = inst->SemiAxis1() * length_unit_;
double y = inst->SemiAxis2() * length_unit_;
const double tol = conv_settings_.getValue(ConversionSettings::GV_PRECISION);
if (x < tol || y < tol) {
Logger::Message(Logger::LOG_ERROR, "Radius not greater than zero for:", inst);
return nullptr;
}
auto el = new taxonomy::ellipse;
el->matrix = as<taxonomy::matrix4>(map(inst->Position()));
// Open Cascade does not allow ellipses of which the minor radius
// is greater than the major radius. Hence, in this case, the
// ellipse is rotated. Note that special care needs to be taken
// ellipse is rotated. Note that special care is taken
// when creating a trimmed curve off of an ellipse like this.
const bool rotated = y > x;
gp_Trsf trsf;
IfcSchema::IfcAxis2Placement* placement = l->Position();
if (placement->as<IfcSchema::IfcAxis2Placement3D>()) {
IfcGeom::Kernel::convert(placement->as<IfcSchema::IfcAxis2Placement3D>(), trsf);
} else {
gp_Trsf2d trsf2d;
IfcGeom::Kernel::convert(placement->as<IfcSchema::IfcAxis2Placement2D>(), trsf2d);
trsf = trsf2d;
}
gp_Ax2 ax = gp_Ax2();
if (rotated) {
ax.Rotate(ax.Axis(), M_PI / 2.);
if (y > x) {
el->matrix.components() <<
-el->matrix.ccomponents().col(1),
el->matrix.ccomponents().col(0),
el->matrix.ccomponents().col(2),
el->matrix.ccomponents().col(3);
std::swap(x, y);
}
ax.Transform(trsf);
curve = new Geom_Ellipse(ax, x, y);
return true;
el->radius = x;
el->radius2 = y;
return el;
}