/*===========================================================================*\ * * * OpenFlipper * * Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen * * www.openflipper.org * * * *---------------------------------------------------------------------------* * This file is part of OpenFlipper. * * * * OpenFlipper is free software: you can redistribute it and/or modify * * it under the terms of the GNU Lesser General Public License as * * published by the Free Software Foundation, either version 3 of * * the License, or (at your option) any later version with the * * following exceptions: * * * * If other files instantiate templates or use macros * * or inline functions from this file, or you compile this file and * * link it with other files to produce an executable, this file does * * not by itself cause the resulting executable to be covered by the * * GNU Lesser General Public License. This exception does not however * * invalidate any other reasons why the executable file might be * * covered by the GNU Lesser General Public License. * * * * OpenFlipper is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU Lesser General Public License for more details. * * * * You should have received a copy of the GNU LesserGeneral Public * * License along with OpenFlipper. If not, * * see . * * * \*===========================================================================*/ /*===========================================================================*\ * * * $Revision: 17392 $ * * $Author: moebius $ * * $Date: 2013-08-26 15:03:53 +0200 (Mon, 26 Aug 2013) $ * * * \*===========================================================================*/ //============================================================================= // // CLASS PolyLinePlugin - IMPLEMENTATION // //============================================================================= //== INCLUDES ================================================================= #include "PolyLinePlugin.hh" ACG::Vec3d PolyLinePlugin:: getPointOnMesh(PolyLineBezierSplineData* _SplineData, ACG::Vec3d _point, ACG::Vec3d* _nor) { TriMeshObject* mesh; if(!PluginFunctions::getObject(_SplineData->meshIndex_, mesh)) return _point; OpenMeshTriangleBSPT* bsp = mesh->requestTriangleBsp(); OpenMeshTriangleBSPT::NearestNeighbor neigh = bsp->nearest(_point); ACG::Vec3d nor = mesh->mesh()->normal(neigh.handle); if(_nor) *_nor = nor; OpenMeshTriangleBSPT::RayCollision rayInt = bsp->raycollision(_point, nor); if(rayInt.size()) return _point + nor * rayInt[0].second; return _point + nor.normalize() * neigh.dist; } void PolyLinePlugin:: updatePolyBezierHandles(PolyLineObject* _lineObject, ACG::SceneGraph::LineNode* _line) { PolyLineBezierSplineData* splineData = dynamic_cast(_lineObject->objectData(BEZSPLINE_DATA)); if(!splineData) return; _line->clear(); for(unsigned int i = 0; i < splineData->handles_.size(); i++) { ACG::SceneGraph::GlutPrimitiveNode* node = 0; if(_lineObject->getAdditionalNode(node, name(), "handle", i)) node->set_position(splineData->handles_[i]); const PolyLineBezierSplineData::InterpolatePoint& control = splineData->getInterpolatePoint(i); _line->add_line(control.position, splineData->handles_[i]); _line->add_color(ACG::Vec4f(1,0,0,1)); } for(unsigned int i = 0; i < splineData->points_.size(); i++) { ACG::SceneGraph::GlutPrimitiveNode* node = 0; if(_lineObject->getAdditionalNode(node, name(), "control", i)) node->set_position(splineData->points_[i].position); } } void PolyLinePlugin:: updatePolyBezierSpline(PolyLineObject* _lineObject, unsigned int _pointCount) { PolyLineBezierSplineData* splineData = dynamic_cast(_lineObject->objectData(BEZSPLINE_DATA)); TriMeshObject* mesh; if(!splineData || !PluginFunctions::getObject(splineData->meshIndex_, mesh)) return;//no mesh -> do nothing _lineObject->line()->clear(); unsigned int segCount = (splineData->points_.size() + splineData->handles_.size() - 1) / 3; for(unsigned int s = 0; s < segCount; s++) { const ACG::Vec3d a = splineData->points_[s].position, d = splineData->points_[s + 1].position, b = splineData->handles_[s * 2], c = splineData->handles_[s * 2 + 1]; //the last segment will get one more point to close the spline unsigned int n = (s != segCount - 1) ? _pointCount : (_pointCount + 1); for(unsigned int i = 0; i < n; i++) { float alpha = float(i) / float(_pointCount); const ACG::Vec3d e = a + (b - a) * alpha, f = c + (d - c) * alpha; ACG::Vec3d g = e + (f - e) * alpha; g = getPointOnMesh(splineData, g); _lineObject->line()->add_point(g); } } emit updatedObject(_lineObject->id(), UPDATE_GEOMETRY | UPDATE_TOPOLOGY); }