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CurveConverter.cpp
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/* -*-c++-*- IfcQuery www.ifcquery.com
*
MIT License
Copyright (c) 2017 Fabian Gerold
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <optional>
#include <ifcpp/geometry/GeometryException.h>
#include <ifcpp/geometry/GeometrySettings.h>
#include <ifcpp/model/BasicTypes.h>
#include <ifcpp/model/StatusCallback.h>
#include <ifcpp/model/UnitConverter.h>
#include <IfcArcIndex.h>
#include <IfcBoolean.h>
#include <IfcBSplineCurve.h>
#include <IfcCartesianPoint.h>
#include <IfcCartesianPointList2D.h>
#include <IfcCartesianPointList3D.h>
#include <IfcCircle.h>
#include <IfcConic.h>
#include <IfcCompositeCurve.h>
#include <IfcCompositeCurveSegment.h>
#include <IfcCurve.h>
#include <IfcCurveSegment.h>
#include <IfcDirection.h>
#include <IfcEdgeCurve.h>
#include <IfcEdgeLoop.h>
#include <IfcEllipse.h>
#include <IfcIndexedPolyCurve.h>
#include <IfcLengthMeasure.h>
#include <IfcLine.h>
#include <IfcLineIndex.h>
#include <IfcLoop.h>
#include <IfcOffsetCurve2D.h>
#include <IfcOffsetCurve3D.h>
#include <IfcOrientedEdge.h>
#include <IfcParameterValue.h>
#include <IfcPcurve.h>
#include <IfcPolyline.h>
#include <IfcPolyLoop.h>
#include <IfcPositiveLengthMeasure.h>
#include <IfcSubedge.h>
#include <IfcTrimmedCurve.h>
#include <IfcTrimmingSelect.h>
#include <IfcVector.h>
#include <IfcVertexPoint.h>
#include "SplineConverter.h"
#include "GeomUtils.h"
#include "GeomDebugDump.h"
#include "PlacementConverter.h"
#include "PointConverter.h"
#include "SplineConverter.h"
#include "CurveConverter.h"
CurveConverter::CurveConverter(shared_ptr<GeometrySettings>& gs, shared_ptr<PlacementConverter>& placement_converter, shared_ptr<PointConverter>& pc, shared_ptr<SplineConverter>& sc)
: m_geom_settings(gs), m_placement_converter(placement_converter), m_point_converter(pc), m_spline_converter(sc)
{
}
CurveConverter:: ~CurveConverter() {}
void CurveConverter::appendSegments(const std::vector<CurveSegment>& segmentsToAppend, std::vector<CurveSegment>& target_vec, double epsilonMergePoints)
{
if (segmentsToAppend.size() == 0)
{
return;
}
if (target_vec.size() == 0)
{
std::copy(segmentsToAppend.begin(), segmentsToAppend.end(), std::back_inserter(target_vec));
return;
}
for (CurveSegment newSegment : segmentsToAppend)
{
// check if last point of target_vec is equal to first point of segments
const vec3& lastPointExistingSegments = target_vec.back().m_points.back();
const vec3& firstPointOfNewSegment = newSegment.m_points.front();
if ((lastPointExistingSegments - firstPointOfNewSegment).length() < epsilonMergePoints)
{
// normal case, last point of target_vec is equal to first point of segments
target_vec.push_back(newSegment);
continue;
}
const vec3& lastPointOfNewSegment = newSegment.m_points.back();
if ((lastPointExistingSegments - lastPointOfNewSegment).length() < epsilonMergePoints)
{
#ifdef _DEBUG
vec4 color1(0.2, 0.8, 0.2, 1.0);
for (auto existing : target_vec) {
GeomDebugDump::dumpPolyline(existing.m_points, color1, 1., false, false);
}
vec4 color2(0.2, 0.8, 0.9, 1.0);
GeomDebugDump::dumpPolyline(newSegment.m_points, color2, 1., false, false);
#endif
// new segment matches if reversed
newSegment.reverseOrientation();
target_vec.push_back(newSegment);
continue;
}
const vec3& firstPointExistingSegments = target_vec.front().m_points.front();
if ((firstPointExistingSegments - lastPointOfNewSegment).length() < epsilonMergePoints)
{
// new segment matches beginning of existing segments
target_vec.insert(target_vec.begin(), newSegment);
continue;
}
if ((firstPointExistingSegments - firstPointOfNewSegment).length() < epsilonMergePoints)
{
// new segment reversed matches beginning of existing segments
newSegment.reverseOrientation();
target_vec.insert(target_vec.begin(), newSegment);
continue;
}
// assume that new segment matches end of existing segments
target_vec.push_back(newSegment);
}
}
void CurveConverter::convertIfcCurve2D(const shared_ptr<IfcCurve>& ifc_curve, std::vector<vec2>& loops, std::vector<vec2>& segment_start_points, bool senseAgreement) const
{
std::vector<shared_ptr<IfcTrimmingSelect> > trim1_vec;
std::vector<shared_ptr<IfcTrimmingSelect> > trim2_vec;
convertIfcCurve2D(ifc_curve, loops, segment_start_points, trim1_vec, trim2_vec, senseAgreement);
}
void CurveConverter::convertIfcCurve2D(const shared_ptr<IfcCurve>& ifc_curve, std::vector<vec2>& target_vec, std::vector<vec2>& segment_start_points,
std::vector<shared_ptr<IfcTrimmingSelect> >& trim1_vec, std::vector<shared_ptr<IfcTrimmingSelect> >& trim2_vec, bool senseAgreement) const
{
std::vector<CurveSegment> segments;
convertIfcCurve(ifc_curve, segments, senseAgreement);
for (size_t ii = 0; ii < segments.size(); ++ii)
{
CurveSegment& seg = segments[ii];
for (size_t jj = 0; jj < seg.m_points.size(); ++jj)
{
vec3& point_3d = seg.m_points[jj];
target_vec.push_back(carve::geom::VECTOR(point_3d.x, point_3d.y));
}
}
}
void CurveConverter::convertIfcCurve(const shared_ptr<IfcCurve>& ifc_curve, std::vector<CurveSegment>& segments,
bool senseAgreement) const
{
std::vector<shared_ptr<IfcTrimmingSelect> > trim1_vec;
std::vector<shared_ptr<IfcTrimmingSelect> > trim2_vec;
convertIfcCurve(ifc_curve, segments, trim1_vec, trim2_vec, senseAgreement);
}
bool trimpointWarning = true;
void CurveConverter::convertIfcCurve(const shared_ptr<IfcCurve>& ifc_curve, std::vector<CurveSegment>& resultSegments,
std::vector<shared_ptr<IfcTrimmingSelect> >& trim1_vec, std::vector<shared_ptr<IfcTrimmingSelect> >& trim2_vec, bool senseAgreement) const
{
double lengthFactor = m_point_converter->getUnitConverter()->getLengthInMeterFactor();
double epsilonMergePoints = m_geom_settings->getEpsilonMergePoints();
// ENTITY IfcCurve ABSTRACT SUPERTYPE OF (ONEOF(IfcBoundedCurve, IfcConic, IfcLine, IfcOffsetCurve2D, IfcOffsetCurve3D, IfcPCurve))
shared_ptr<IfcBoundedCurve> bounded_curve = dynamic_pointer_cast<IfcBoundedCurve>(ifc_curve);
if (bounded_curve)
{
shared_ptr<IfcCompositeCurve> composite_curve = dynamic_pointer_cast<IfcCompositeCurve>(bounded_curve);
if (composite_curve)
{
// ENTITY IfcBoundedCurve ABSTRACT SUPERTYPE OF (ONEOF(IfcCompositeCurve, IfcPolyline, IfcTrimmedCurve, IfcBSplineCurve))
for (const shared_ptr<IfcSegment>& ifcSegment : composite_curve->m_Segments)
{
// ENTITY IfcSegment ABSTRACT SUPERTYPE OF (ONEOF (IfcCompositeCurveSegment ,IfcCurveSegment))
shared_ptr<IfcCompositeCurveSegment> compositeCurveSegment = dynamic_pointer_cast<IfcCompositeCurveSegment>(ifcSegment);
if (compositeCurveSegment)
{
const shared_ptr<IfcCurve>& ParentCurve = compositeCurveSegment->m_ParentCurve;
std::vector<CurveSegment> segment_vec;
convertIfcCurve(ParentCurve, segment_vec, senseAgreement);
appendSegments(segment_vec, resultSegments, epsilonMergePoints);
continue;
}
shared_ptr<IfcCurveSegment> curveSegment = dynamic_pointer_cast<IfcCurveSegment>(ifcSegment);
if (curveSegment)
{
// IfcCurveSegment -----------------------------------------------------------
// <IfcTransitionCode> m_Transition;
// <IfcPlacement> m_Placement;
// <IfcCurveMeasureSelect> m_SegmentStart;
// <IfcCurveMeasureSelect> m_SegmentLength;
// <IfcCurve> m_ParentCurve;
const shared_ptr<IfcCurve>& ParentCurve = curveSegment->m_ParentCurve;
std::vector<CurveSegment> segment_vec;
convertIfcCurve(ParentCurve, segment_vec, senseAgreement);
appendSegments(segment_vec, resultSegments, epsilonMergePoints);
continue;
}
}
#ifdef _DEBUG
if (resultSegments.size() == 6)
{
vec4 color(0.4, 0.6, 0.6, 1.0);
GeomDebugDump::dumpLocalCoordinateSystem();
GeomDebugDump::dumpPolyline(resultSegments.front().m_points, color, 1.0, true, false);
}
#endif
return;
}
shared_ptr<IfcPolyline> polyLine = dynamic_pointer_cast<IfcPolyline>(ifc_curve);
if (polyLine)
{
std::vector<shared_ptr<IfcCartesianPoint> >& points = polyLine->m_Points;
if (points.size() > 0)
{
resultSegments.push_back(CurveSegment(CurveSegment::CURVE_TYPE_POLYLINE));
CurveSegment& currentSegment = resultSegments.back();
m_point_converter->convertIfcCartesianPointVector(points, currentSegment.m_points);
if (!senseAgreement)
{
currentSegment.reverseOrientation();
}
}
return;
}
shared_ptr<IfcTrimmedCurve> trimmed_curve = dynamic_pointer_cast<IfcTrimmedCurve>(bounded_curve);
if (trimmed_curve)
{
shared_ptr<IfcCurve> basis_curve = trimmed_curve->m_BasisCurve;
if (basis_curve)
{
std::vector<CurveSegment> basisCurveSegment;
std::vector<shared_ptr<IfcTrimmingSelect> >& curveTrim1vec = trimmed_curve->m_Trim1;
std::vector<shared_ptr<IfcTrimmingSelect> >& curveTrim2vec = trimmed_curve->m_Trim2;
bool trimmed_senseAgreement = true;
if (trimmed_curve->m_SenseAgreement) { trimmed_senseAgreement = trimmed_curve->m_SenseAgreement->m_value; }
if (!senseAgreement)
{
trimmed_senseAgreement = !trimmed_senseAgreement;
}
convertIfcCurve(basis_curve, basisCurveSegment, curveTrim1vec, curveTrim2vec, trimmed_senseAgreement);
appendSegments(basisCurveSegment, resultSegments, epsilonMergePoints);
}
return;
}
shared_ptr<IfcBSplineCurve> bspline_curve = dynamic_pointer_cast<IfcBSplineCurve>(bounded_curve);
if (bspline_curve)
{
CurveSegment seg(CurveSegment::CURVE_TYPE_NURBS);
std::vector<vec3> segmentStartPoints;
m_spline_converter->convertBSplineCurve(bspline_curve, seg.m_points, segmentStartPoints);
std::optional<vec3> trimPoint1;
std::optional<vec3> trimPoint2;
getTrimPoints(trim1_vec, trim2_vec, trimPoint1, trimPoint2);
resultSegments.push_back(seg);
#ifdef _DEBUG
//GeomDebugDump::clearMeshsetDump();
//vec4 color(0.2, 0.2, 0.2, 0.8);
//GeomDebugDump::dumpPolyline(target_vec, color, 1.0, false);
//if (trimPoint1.has_value() && trimPoint2.has_value())
//{
// std::vector<vec3> trimPoints = { trimPoint1.value(), trimPoint2.value() };
// GeomDebugDump::dumpPolyline(trimPoints, color, 1.0, false);
//}
#endif
// TODO: handle trim points
return;
}
shared_ptr<IfcIndexedPolyCurve> indexed_poly_curve = dynamic_pointer_cast<IfcIndexedPolyCurve>(bounded_curve);
if (indexed_poly_curve)
{
shared_ptr<IfcCartesianPointList>& pointList = indexed_poly_curve->m_Points;
if (!pointList)
{
return;
}
// IfcIndexedPolyCurve -----------------------------------------------------------
std::vector<vec3> pointVec;
shared_ptr<IfcCartesianPointList2D> pointList2D = dynamic_pointer_cast<IfcCartesianPointList2D>(pointList);
if (pointList2D)
{
m_point_converter->convertPointList(pointList2D->m_CoordList, pointVec);
}
else
{
shared_ptr<IfcCartesianPointList3D> pointList3D = dynamic_pointer_cast<IfcCartesianPointList3D>(pointList);
if (pointList3D)
{
m_point_converter->convertPointList(pointList3D->m_CoordList, pointVec);
}
}
int tag = indexed_poly_curve->m_tag;
const std::vector<shared_ptr<IfcSegmentIndexSelect> >& segments = indexed_poly_curve->m_Segments; //optional
if (segments.size() > 0)
{
for (size_t ii = 0; ii < segments.size(); ++ii)
{
const shared_ptr<IfcSegmentIndexSelect>& segment = segments[ii];
shared_ptr<IfcLineIndex> lineIdx = dynamic_pointer_cast<IfcLineIndex>(segment);
if (lineIdx)
{
if (lineIdx->m_vec.size() > 1)
{
std::vector<vec3> line_points_3d;
for (size_t jj = 0; jj < lineIdx->m_vec.size(); ++jj)
{
int idx0 = lineIdx->m_vec[jj]->m_value - 1;
if (idx0 < pointVec.size())
{
const vec3& pt0 = pointVec[idx0];
line_points_3d.push_back(pt0);
}
else
{
std::cout << "IfcIndexedPolyCurve: invalid index: " << idx0 << std::endl;
}
}
if (line_points_3d.size() > 1)
{
CurveSegment seg(CurveSegment::CURVE_TYPE_LINE);
GeomUtils::appendPointsToCurve(line_points_3d, seg.m_points, epsilonMergePoints);
resultSegments.push_back(seg);
}
}
continue;
}
shared_ptr<IfcArcIndex> arcIdx = dynamic_pointer_cast<IfcArcIndex>(segment);
if (arcIdx)
{
if (arcIdx->m_vec.size() < 3)
{
continue;
}
if (arcIdx->m_vec.size() > 3)
{
#ifdef _DEBUG
std::cout << "IfcIndexedPolyCurve: arc index with > 3 points not implemented" << std::endl;
#endif
}
if (arcIdx->m_vec[0] && arcIdx->m_vec[1] && arcIdx->m_vec[2])
{
int idx0 = arcIdx->m_vec[0]->m_value - 1;
int idx1 = arcIdx->m_vec[1]->m_value - 1;
int idx2 = arcIdx->m_vec[2]->m_value - 1;
if (idx0 >= 0 && idx1 >= 0 && idx2 >= 0)
{
if (idx0 < pointVec.size() && idx1 < pointVec.size() && idx2 < pointVec.size())
{
const vec3& p0 = pointVec[idx0];
const vec3& p1 = pointVec[idx1];
const vec3& p2 = pointVec[idx2];
const vec3 t = p1 - p0;
const vec3 u = p2 - p0;
const vec3 v = p2 - p1; // TODO: check if we have to normalize these
const vec3 w = carve::geom::cross(t, u);
const double wsl = w.length2();
if (wsl > 10e-14)
{
const double iwsl2 = 1.0 / (2.0 * wsl);
const double tt = carve::geom::dot(t, t);
const double uu = carve::geom::dot(u, u);
vec3 circ_center = p0 + (u * tt * (carve::geom::dot(u, v)) - t * uu * (carve::geom::dot(t, v))) * iwsl2;
vec3 circAxis = w / sqrt(wsl);
vec3 center_p0 = p0 - circ_center;
vec3 center_p1 = p1 - circ_center;
vec3 center_p2 = p2 - circ_center;
vec3 center_p0_normalized = center_p0.normalized();
vec3 center_p2_normalized = center_p2.normalized();
double dotProduct = carve::geom::dot(center_p0_normalized, center_p2_normalized);
if (dotProduct < -1.0) { dotProduct = -1.0; }
if (dotProduct > 1.0) { dotProduct = 1.0; }
double openingAngle = std::acos(dotProduct);
if (openingAngle < -M_PI * 2.0) { openingAngle = -M_PI * 2.0; }
if (openingAngle > M_PI * 2.0) { openingAngle = M_PI * 2.0; }
size_t n = m_geom_settings->getNumVerticesPerCircle() * openingAngle / (M_PI * 2.0);
if (n < m_geom_settings->getMinNumVerticesPerArc())
{
n = m_geom_settings->getMinNumVerticesPerArc();
}
const double deltaAngle = openingAngle / (double)(n - 1);
double angle = 0;
CurveSegment seg(CurveSegment::CURVE_TYPE_ARC);
seg.arcOrCircleCenter = circ_center;
seg.arcOrCircleAxis = circAxis;
seg.arcStartAngle = 0;
seg.arcOpeningAngle = openingAngle;
for (size_t kk = 0; kk < n; ++kk)
{
carve::math::Matrix m = carve::math::Matrix::ROT(angle, circAxis, epsilonMergePoints);
vec3 p_rotated = center_p0;
p_rotated = m * p_rotated + circ_center;
seg.m_points.push_back(p_rotated);
angle += deltaAngle;
}
std::vector<CurveSegment> segmentsToAppend = { seg };
double epsilonMergePoints = 1e-10;
appendSegments(segmentsToAppend, resultSegments, epsilonMergePoints);
#ifdef _DEBUG
const std::vector<vec3>& vec_polyline = seg.m_points;
const vec4 color(0.5, 0.5, 0.5, 1.0);
double lineThickness = 1.0;
GeomDebugDump::dumpPolyline(vec_polyline, color, lineThickness, false, false);
#endif
}
}
}
}
}
}
}
else
{
#ifdef _DEBUG
int tag = indexed_poly_curve->m_tag;
#endif
// no segments, take all points from CoordList
if (pointVec.size() > 0)
{
CurveSegment seg(CurveSegment::CURVE_TYPE_POLYLINE);
std::copy(pointVec.begin(), pointVec.end(), std::back_inserter(seg.m_points));
resultSegments.push_back(seg);
}
}
return;
}
throw UnhandledRepresentationException(bounded_curve);
}
shared_ptr<IfcConic> conic = dynamic_pointer_cast<IfcConic>(ifc_curve);
if (conic)
{
// ENTITY IfcConic ABSTRACT SUPERTYPE OF(ONEOF(IfcCircle, IfcEllipse))
shared_ptr<TransformData> conicPositionMatrix(new TransformData());
shared_ptr<IfcPlacement> conic_placement = dynamic_pointer_cast<IfcPlacement>(conic->m_Position);
if (conic_placement)
{
m_placement_converter->convertIfcPlacement(conic_placement, conicPositionMatrix, false);
}
vec3 circleCenter = conicPositionMatrix->m_matrix * carve::geom::VECTOR(0, 0, 0);
double circleRadius = -1;
double circleRadius2 = -1;
shared_ptr<IfcEllipse> ellipse = dynamic_pointer_cast<IfcEllipse>(conic);
if (ellipse)
{
if (ellipse->m_SemiAxis1)
{
if (ellipse->m_SemiAxis2)
{
circleRadius = ellipse->m_SemiAxis1->m_value * lengthFactor;
circleRadius2 = ellipse->m_SemiAxis2->m_value * lengthFactor;
}
}
}
else
{
shared_ptr<IfcCircle> circle = dynamic_pointer_cast<IfcCircle>(conic);
if (circle)
{
circleRadius = 0.0;
if (circle->m_Radius)
{
circleRadius = circle->m_Radius->m_value * lengthFactor;
circleRadius2 = circleRadius;
}
}
}
const carve::math::Matrix& circlePosition = conicPositionMatrix->m_matrix;
carve::math::Matrix circlePositionInverse;
GeomUtils::computeInverse(circlePosition, circlePositionInverse);
double startAngle = 0, endAngle = 0;
double openingAngle = M_PI * 2.0;
getTrimAngle(trim1_vec, circleCenter, circleRadius, circleRadius2, startAngle, circlePosition, circlePositionInverse);
getTrimAngle(trim2_vec, circleCenter, circleRadius, circleRadius2, endAngle, circlePosition, circlePositionInverse);
computeOpeningAngle(startAngle, endAngle, epsilonMergePoints, senseAgreement, openingAngle);
if (trim1_vec.size() == 0 && trim2_vec.size() == 0)
{
// no trimming, add full circle
openingAngle = M_PI * 2.0;
endAngle = startAngle + openingAngle;
}
#if defined( _DEBUG)
if( trimpointWarning )
{
trimpointWarning = false;
// compute trim points from startAngle, endAngle, then re-compute startAngle, endAngle from these trim points (round trip)
vec3 trimPoint1FromAngle = circlePosition * carve::geom::VECTOR(circleRadius * cos(startAngle), circleRadius2 * sin(startAngle), 0);
vec3 trimPoint2FromAngle = circlePosition * carve::geom::VECTOR(circleRadius * cos(endAngle), circleRadius2 * sin(endAngle), 0);
int tag1 = -1;
if (trim1_vec.size() > 0) {
shared_ptr<IfcCartesianPoint> pt = dynamic_pointer_cast<IfcCartesianPoint>(trim1_vec.front());
if (pt) {
tag1 = pt->m_tag;
}
}
std::optional<vec3> trimPoint1Optional;
std::optional<vec3> trimPoint2Optional;
getTrimPoints(trim1_vec, trim2_vec, trimPoint1Optional, trimPoint2Optional);
if (trimPoint1Optional.has_value() && trimPoint2Optional.has_value()) {
vec3 trimPoint1 = trimPoint1Optional.value();
vec3 trimPoint2 = trimPoint2Optional.value();
m_point_converter->adjustTrimpointPositionOnConic(circleCenter, circleRadius, circleRadius2, trimPoint1, circlePosition, epsilonMergePoints);
m_point_converter->adjustTrimpointPositionOnConic(circleCenter, circleRadius, circleRadius2, trimPoint2, circlePosition, epsilonMergePoints);
double dist1 = (trimPoint1 - trimPoint1FromAngle).length();
double dist2 = (trimPoint2 - trimPoint2FromAngle).length();
if (std::abs(dist1) > epsilonMergePoints) {
std::cout << "trim point 1 distance to start angle point: " << dist1 << std::endl;
}
}
std::vector<shared_ptr<IfcTrimmingSelect> > trim1_vec_check, trim2_vec_check;
shared_ptr<IfcCartesianPoint> t1(new IfcCartesianPoint());
double lengthFactor = m_point_converter->getUnitConverter()->getLengthInMeterFactor();
t1->m_Coordinates[0] = trimPoint1FromAngle.x / lengthFactor;
t1->m_Coordinates[1] = trimPoint1FromAngle.y / lengthFactor;
t1->m_Coordinates[2] = trimPoint1FromAngle.z / lengthFactor;
trim1_vec_check.push_back(t1);
shared_ptr<IfcCartesianPoint> t2(new IfcCartesianPoint());
t2->m_Coordinates[0] = trimPoint2FromAngle.x / lengthFactor;
t2->m_Coordinates[1] = trimPoint2FromAngle.y / lengthFactor;
t2->m_Coordinates[2] = trimPoint2FromAngle.z / lengthFactor;
trim2_vec_check.push_back(t2);
double startAngleCheck = 0, endAngleCheck = 0;
double openingAngleCheck = M_PI * 2.0;
getTrimAngle(trim1_vec_check, circleCenter, circleRadius, circleRadius2, startAngleCheck, circlePosition, circlePositionInverse);
getTrimAngle(trim2_vec_check, circleCenter, circleRadius, circleRadius2, endAngleCheck, circlePosition, circlePositionInverse);
double deltaStartAngle = startAngle - startAngleCheck;
if (std::abs(deltaStartAngle) > epsilonMergePoints * 10000) {
std::cout << "trim point 1 round trip check failed" << std::endl;
size_t num_segments = 10;
std::vector<vec3> points;
GeomUtils::getCirclePoints(circleRadius, circleRadius2, startAngle, openingAngle, num_segments, circlePosition, points);
vec4 color3(0.4, 0.6, 0.6, 1.0);
GeomDebugDump::dumpPolyline(points, color3, 2.0, false, false);
GeomDebugDump::dumpPolyline({ trimPoint1FromAngle, circleCenter , trimPoint2FromAngle }, color3, 2.0, false, false);
}
double deltaEndAngle = endAngle - endAngleCheck;
if (std::abs(deltaEndAngle) > epsilonMergePoints * 10000) {
std::cout << "trim point 2 round trip check failed" << std::endl;
}
}
#endif
CurveSegment seg(CurveSegment::CURVE_TYPE_CIRCLE);
if (circleRadius > epsilonMergePoints*1000)
{
int num_segments = m_geom_settings->getNumVerticesPerCircleWithRadius(circleRadius) * (std::abs(openingAngle) / (2.0 * M_PI));
if (num_segments < m_geom_settings->getMinNumVerticesPerArc()) num_segments = m_geom_settings->getMinNumVerticesPerArc();
GeomUtils::getCirclePoints(circleRadius, circleRadius2, startAngle, openingAngle, num_segments,
circlePosition, seg.m_points);
seg.arcStartAngle = startAngle;
seg.arcOpeningAngle = openingAngle;
seg.arcOrCircleCenter = circleCenter;
seg.arcOrCircleAxis = circlePosition * carve::geom::VECTOR(0, 0, 1); // TODO: check if this is correct
}
else
{
seg.arcOrCircleCenter = circleCenter;
seg.m_points.push_back(seg.arcOrCircleCenter);
}
resultSegments.push_back(seg);
#ifdef _DEBUG
vec4 color(0.2, 0.2, 0.2, 0.8);
//GeomDebugDump::dumpPolyline(circle_segment_points3D, color, 0, true, false);
#endif
return;
}
shared_ptr<IfcLine> line = dynamic_pointer_cast<IfcLine>(ifc_curve);
if (line)
{
shared_ptr<IfcCartesianPoint> ifc_line_point = line->m_Pnt;
vec3 line_origin;
vec3 line_end;
if (PointConverter::convertIfcCartesianPoint(ifc_line_point, line_origin, lengthFactor))
{
#ifdef _DEBUG
int tag = line->m_tag;
#endif
// line: lambda(u) = line_point + u*line_direction
shared_ptr<IfcVector> line_vec = line->m_Dir;
if (!line_vec)
{
return;
}
shared_ptr<IfcDirection> ifc_line_direction = line_vec->m_Orientation;
vec3 line_direction = carve::geom::VECTOR(1,0,0);
if (ifc_line_direction)
{
std::vector<shared_ptr<IfcReal> >& direction_ratios = ifc_line_direction->m_DirectionRatios;
if (direction_ratios.size() > 1)
{
if (direction_ratios.size() > 2)
{
line_direction = carve::geom::VECTOR(direction_ratios[0]->m_value, direction_ratios[1]->m_value, direction_ratios[2]->m_value);
}
else
{
line_direction = carve::geom::VECTOR(direction_ratios[0]->m_value, direction_ratios[1]->m_value, 0);
}
}
line_direction.normalize();
}
line_end = line_origin + line_direction; // will be overwritten by trimming points in most cases
if (line_vec->m_Magnitude)
{
line_end = line_origin + line_direction * line_vec->m_Magnitude->m_value;
}
// check for trimming at beginning of line
double start_parameter = 0.0;
shared_ptr<IfcParameterValue> trim_par1;
if (GeomUtils::findFirstInVector(trim1_vec, trim_par1))
{
start_parameter = trim_par1->m_value;
line_origin = line_origin + line_direction * start_parameter;
}
else
{
shared_ptr<IfcCartesianPoint> ifc_trimPoint;
if (GeomUtils::findFirstInVector(trim1_vec, ifc_trimPoint))
{
vec3 trimPoint;
PointConverter::convertIfcCartesianPoint(ifc_trimPoint, trimPoint, lengthFactor);
line_origin = trimPoint;
vec3 closest_point_on_line;
GeomUtils::closestPointOnLine(trimPoint, line_origin, line_direction, closest_point_on_line);
if ((closest_point_on_line - trimPoint).length() < epsilonMergePoints * 10.0)
{
// trimming point is on the line
line_origin = trimPoint;
}
else
{
line_origin = closest_point_on_line;
}
}
}
// check for trimming at end of line
shared_ptr<IfcParameterValue> trim_par2;
if (GeomUtils::findFirstInVector(trim2_vec, trim_par2))
{
line_end = line_origin + line_direction * trim_par2->m_value * lengthFactor;
}
else
{
shared_ptr<IfcCartesianPoint> ifc_trimPoint;
if (GeomUtils::findFirstInVector(trim2_vec, ifc_trimPoint))
{
vec3 trimPoint;
PointConverter::convertIfcCartesianPoint(ifc_trimPoint, trimPoint, lengthFactor);
line_end = trimPoint;
vec3 closest_point_on_line;
GeomUtils::closestPointOnLine(trimPoint, line_origin, line_direction, closest_point_on_line);
if ((closest_point_on_line - trimPoint).length() < 0.0001)
{
// trimming point is on the line
line_end = trimPoint;
}
else
{
line_end = closest_point_on_line;
}
}
}
CurveSegment seg(CurveSegment::CURVE_TYPE_LINE);
seg.m_points.push_back(line_origin);
seg.m_points.push_back(line_end);
resultSegments.push_back(seg);
}
return;
}
shared_ptr<IfcOffsetCurve2D> offset_curve_2d = dynamic_pointer_cast<IfcOffsetCurve2D>(ifc_curve);
if (offset_curve_2d)
{
// TODO: implement
return;
}
shared_ptr<IfcOffsetCurve3D> offset_curve_3d = dynamic_pointer_cast<IfcOffsetCurve3D>(ifc_curve);
if (offset_curve_3d)
{
// TODO: implement
return;
}
shared_ptr<IfcPcurve> pcurve = dynamic_pointer_cast<IfcPcurve>(ifc_curve);
if (pcurve)
{
// TODO: implement
return;
}
throw UnhandledRepresentationException(ifc_curve);
}
void CurveConverter::getTrimAngle(const std::vector<shared_ptr<IfcTrimmingSelect> >& trimSelect1, const vec3& circleCenter, double radius1, double radius2,
double& trimAngle1, const carve::math::Matrix& circlePlacement, const carve::math::Matrix& circlePlacementInverse) const
{
trimAngle1 = 0;
double lengthFactor = m_point_converter->getUnitConverter()->getLengthInMeterFactor();
double eps = m_geom_settings->getEpsilonMergePoints();
// check for trimming begin
shared_ptr<IfcParameterValue> trim_par1;
if (GeomUtils::findFirstInVector(trimSelect1, trim_par1))
{
double planeAngleFactor = m_point_converter->getUnitConverter()->getAngleInRadiantFactor();
if (m_point_converter->getUnitConverter()->getAngularUnit() == UnitConverter::UNDEFINED)
{
// angular unit definition not found in model, default to radian
planeAngleFactor = 1.0;
if (trim_par1->m_value > 2.0 * M_PI)
{
// assume degree
planeAngleFactor = M_PI / 180.0;
}
}
trimAngle1 = trim_par1->m_value * planeAngleFactor;
}
else
{
shared_ptr<IfcCartesianPoint> trimPoint1;
if (GeomUtils::findFirstInVector(trimSelect1, trimPoint1))
{
vec3 trimPoint;
PointConverter::convertIfcCartesianPoint(trimPoint1, trimPoint, lengthFactor);
trimAngle1 = m_point_converter->getAngleOnConic(circleCenter, radius1, radius2, trimPoint, circlePlacement, circlePlacementInverse, eps);
}
}
}
void CurveConverter::getTrimPoints(const std::vector<shared_ptr<IfcTrimmingSelect> >& trim1_vec, const std::vector<shared_ptr<IfcTrimmingSelect> >& trim2_vec,
const carve::math::Matrix& circlePosition, double circleRadius, double circleRadius2, bool senseAgreement, std::optional<vec3>& trimPoint1,
std::optional<vec3>& trimPoint2) const
{
double lengthFactor = m_point_converter->getUnitConverter()->getLengthInMeterFactor();
// check for trimming begin
shared_ptr<IfcCartesianPoint> ifc_trimPoint1;
if (GeomUtils::findFirstInVector(trim1_vec, ifc_trimPoint1))
{
vec3 trimPoint;
PointConverter::convertIfcCartesianPoint(ifc_trimPoint1, trimPoint, lengthFactor);
trimPoint = circlePosition * trimPoint;
trimPoint1 = std::make_optional<vec3>(trimPoint);
}
else
{
shared_ptr<IfcParameterValue> trim_par1;
if (GeomUtils::findFirstInVector(trim1_vec, trim_par1))
{
double planeAngleFactor = m_point_converter->getUnitConverter()->getAngleInRadiantFactor();
if (m_point_converter->getUnitConverter()->getAngularUnit() == UnitConverter::UNDEFINED)
{
// angular unit definition not found in model, default to radian
planeAngleFactor = 1.0;
if (trim_par1->m_value > 2.0 * M_PI)
{
// assume degree
planeAngleFactor = M_PI / 180.0;
}
}
vec3 trimPoint;
double trimAngle1 = trim_par1->m_value * planeAngleFactor;
trimPoint = circlePosition * carve::geom::VECTOR(circleRadius * cos(trimAngle1), circleRadius * sin(trimAngle1), 0);
if (circleRadius2 > 0)
{
trimPoint = carve::geom::VECTOR(circleRadius * cos(trimAngle1), circleRadius2 * sin(trimAngle1), 0);
}
trimPoint1 = std::make_optional<vec3>(trimPoint);
}
}
// check for trimming end
shared_ptr<IfcCartesianPoint> ifc_trimPoint2;
if (GeomUtils::findFirstInVector(trim2_vec, ifc_trimPoint2))
{
vec3 trimPoint;
PointConverter::convertIfcCartesianPoint(ifc_trimPoint2, trimPoint, lengthFactor);
trimPoint = circlePosition * trimPoint;
trimPoint2 = std::make_optional<vec3>(trimPoint);
}
else
{
shared_ptr<IfcParameterValue> trim_par;
if (GeomUtils::findFirstInVector(trim2_vec, trim_par))
{
double planeAngleFactor = m_point_converter->getUnitConverter()->getAngleInRadiantFactor();
if (m_point_converter->getUnitConverter()->getAngularUnit() == UnitConverter::UNDEFINED)
{
// angular unit definition not found in model, default to radian
planeAngleFactor = 1.0;
if (trim_par->m_value > 2.0 * M_PI)
{
// assume degree
planeAngleFactor = M_PI / 180.0;
}
}
double trimAngle = trim_par->m_value * planeAngleFactor;
vec3 trimPoint = circlePosition * carve::geom::VECTOR(circleRadius * cos(trimAngle), circleRadius * sin(trimAngle), 0);
if (circleRadius2 > 0)
{
trimPoint = carve::geom::VECTOR(circleRadius * cos(trimAngle), circleRadius2 * sin(trimAngle), 0);
}
trimPoint2 = std::make_optional<vec3>(trimPoint);
}
}
}
void CurveConverter::getTrimPoints(const std::vector<shared_ptr<IfcTrimmingSelect> >& trim1_vec, const std::vector<shared_ptr<IfcTrimmingSelect> >& trim2_vec, std::optional<vec3>& trimPoint1, std::optional<vec3>& trimPoint2) const
{
double lengthFactor = m_point_converter->getUnitConverter()->getLengthInMeterFactor();
// check for trimming begin
shared_ptr<IfcCartesianPoint> ifc_trimPoint1;
if (GeomUtils::findFirstInVector(trim1_vec, ifc_trimPoint1))
{
vec3 trimPoint;
PointConverter::convertIfcCartesianPoint(ifc_trimPoint1, trimPoint, lengthFactor);
trimPoint1 = std::make_optional<vec3>(trimPoint);
}
// check for trimming end
shared_ptr<IfcCartesianPoint> ifc_trimPoint2;
if (GeomUtils::findFirstInVector(trim2_vec, ifc_trimPoint2))
{
vec3 trimPoint;
PointConverter::convertIfcCartesianPoint(ifc_trimPoint2, trimPoint, lengthFactor);
trimPoint2 = std::make_optional<vec3>(trimPoint);
}
}
void CurveConverter::convertIfcEdge(const shared_ptr<IfcEdge>& edge, std::vector<vec3>& resultPoints, double lengthFactor) const
{
if (!edge)
{
return;
}
//ENTITY IfcEdge SUPERTYPE OF (ONEOF(IfcOrientedEdge, IfcEdgeCurve, IfcSubedge))
const shared_ptr<IfcVertex>& edgeStart = edge->m_EdgeStart;
const shared_ptr<IfcVertex>& edgeEnd = edge->m_EdgeEnd;
vec3 p0, p1;
bool hasEdgeStart = PointConverter::convertIfcVertex(edgeStart, p0, lengthFactor);
bool hasEdgeEnd = PointConverter::convertIfcVertex(edgeEnd, p1, lengthFactor);
const shared_ptr<IfcOrientedEdge> orientedEdge = dynamic_pointer_cast<IfcOrientedEdge>(edge);
if (orientedEdge)
{
//shared_ptr<IfcEdge> m_EdgeElement;
//shared_ptr<IfcBoolean> m_Orientation;
bool orientedEdgeOrientation = orientedEdge->m_Orientation->m_value;
std::vector<vec3> loopPointsEdgeElement;
convertIfcEdge(orientedEdge->m_EdgeElement, loopPointsEdgeElement, lengthFactor);
if (!orientedEdgeOrientation)
{
std::reverse(loopPointsEdgeElement.begin(), loopPointsEdgeElement.end());
}
resultPoints = loopPointsEdgeElement;
return;
}
const shared_ptr<IfcSubedge> subEdge = dynamic_pointer_cast<IfcSubedge>(edge);
if (subEdge)
{
if (subEdge->m_ParentEdge)
{
std::vector<vec3> loopPointsParentEdge;
convertIfcEdge(subEdge->m_ParentEdge, loopPointsParentEdge, lengthFactor);
resultPoints = loopPointsParentEdge;
return;
}
}
std::vector<vec3> curvePoints;
const shared_ptr<IfcEdgeCurve> edgeCurve = dynamic_pointer_cast<IfcEdgeCurve>(edge);
if (edgeCurve)
{
// IfcEdgeCurve -----------------------------------------------------------
// <IfcVertex> m_EdgeStart;
// <IfcVertex> m_EdgeEnd;
// <IfcCurve> m_EdgeGeometry;
// <IfcBoolean> m_SameSense;
bool edgeSameSense = true;
if (edgeCurve->m_SameSense)
{
edgeSameSense = edgeCurve->m_SameSense->m_value;
}
if (!edgeSameSense)
{
std::swap(p0, p1);
}
std::vector<CurveSegment> curveSegments;
const shared_ptr<IfcCurve> edgeCurveGeometry = edgeCurve->m_EdgeGeometry;
bool senseAgreement = true;
if (edgeCurveGeometry)
{
shared_ptr<IfcTrimmedCurve> trimmedCurve = dynamic_pointer_cast<IfcTrimmedCurve>(edgeCurveGeometry);
if (trimmedCurve)
{
// IfcTrimmedCurve -----------------------------------------------------------
// <IfcCurve> m_BasisCurve;
// std::vector<shared_ptr<IfcTrimmingSelect> > m_Trim1;
// std::vector<shared_ptr<IfcTrimmingSelect> > m_Trim2;
// <IfcBoolean> m_SenseAgreement;
// <IfcTrimmingPreference> m_MasterRepresentation;
const shared_ptr<IfcCurve> basisCurve = trimmedCurve->m_BasisCurve;
if (basisCurve)
{
carve::math::Matrix matrix;
shared_ptr<IfcConic> conic = dynamic_pointer_cast<IfcConic>(basisCurve);
if (conic)
{
// ENTITY IfcConic ABSTRACT SUPERTYPE OF(ONEOF(IfcCircle, IfcEllipse))