Glassvision/IfcOpenShell
1
0
Fork 0
mirror of https://github.com/IfcOpenShell/IfcOpenShell.git synced 2026-08-10 17:58:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

Updates IfcOffsetCurveByDistance to be more permissive

Browse Source
This commit is contained in:
Richard Brice
2025-07-27 15:09:00 -07:00
parent a824141b90
commit e56f09071a
1 changed files with 28 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/ifcgeom/mapping/IfcOffsetCurveByDistance.cpp
+28 -10
View File
@@ -108,12 +108,7 @@ taxonomy::ptr mapping::map_impl(const IfcSchema::IfcOffsetCurveByDistances* inst
dp *= length_unit_;
dn *= length_unit_;
if ((dp < 0.0 || basis_curve_length < dp) // previous is out of range
||
(dn < 0.0 || basis_curve_length < dn) // next is out of range
||
(dn < dp) // next is before previous
)
if (dn < dp) // next is before previous
{
Logger::Warning("IfcOffsetCurveByDistance offset value is out of bounds.");
continue;
@@ -124,6 +119,33 @@ taxonomy::ptr mapping::map_impl(const IfcSchema::IfcOffsetCurveByDistances* inst
double yp = (*prev)->OffsetLateral().get_value_or(0.0) * length_unit_;
double zn = (*next)->OffsetVertical().get_value_or(0.0) * length_unit_;
double zp = (*prev)->OffsetVertical().get_value_or(0.0) * length_unit_;
if ( (dp < 0.0 && dn < 0.0) || (basis_curve_length < dp && basis_curve_length < dn) ) {
// both points are either before the start of the curve or after the end of the curve. ignore them.
continue;
}
if (dp < 0.0) {
// previous is before the start of the curve
// compute y and z offsets at the start of the curve
auto yp_at_start = yp - (yn - yp) * dp / l;
auto zp_at_start = zp - (zn - zp) * dp / l;
dp = 0.0;
yp = yp_at_start;
zp = zp_at_start;
}
if (basis_curve_length < dn) {
// next is after the end of the curve
// compute y and z offsets at the end of the curve
auto yn_at_end = yn - (yn - yp) * (dn - basis_curve_length) / l;
auto zn_at_end = zn - (zn - zp) * (dn - basis_curve_length) / l;
dn = basis_curve_length;
yn = yn_at_end;
zn = zn_at_end;
}
auto fn = [yp, yn, zp, zn, l](double u) -> Eigen::Matrix4d {
Eigen::Matrix4d m = Eigen::Matrix4d::Identity();
@@ -140,10 +162,6 @@ taxonomy::ptr mapping::map_impl(const IfcSchema::IfcOffsetCurveByDistances* inst
#else
double last_distance = *(*prev)->DistanceAlong()->as<IfcSchema::IfcLengthMeasure>() * length_unit_;
#endif
if (basis_curve_length < last_distance) {
Logger::Warning("IfcOffsetCurveByDistance last offset value is after the end of the curve.");
}
if (last_distance < basis_curve_length) {
// Last offset is defined before the end of the curve so the lateral and vertical offsets