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annotate libs/assimp/IFCProfile.cpp @ 1:e7ca128b8713

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looks nice :)
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 02 Feb 2014 00:35:22 +0200
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nuclear@0 1 /*
nuclear@0 2 Open Asset Import Library (assimp)
nuclear@0 3 ----------------------------------------------------------------------
nuclear@0 4
nuclear@0 5 Copyright (c) 2006-2012, assimp team
nuclear@0 6 All rights reserved.
nuclear@0 7
nuclear@0 8 Redistribution and use of this software in source and binary forms,
nuclear@0 9 with or without modification, are permitted provided that the
nuclear@0 10 following conditions are met:
nuclear@0 11
nuclear@0 12 * Redistributions of source code must retain the above
nuclear@0 13 copyright notice, this list of conditions and the
nuclear@0 14 following disclaimer.
nuclear@0 15
nuclear@0 16 * Redistributions in binary form must reproduce the above
nuclear@0 17 copyright notice, this list of conditions and the
nuclear@0 18 following disclaimer in the documentation and/or other
nuclear@0 19 materials provided with the distribution.
nuclear@0 20
nuclear@0 21 * Neither the name of the assimp team, nor the names of its
nuclear@0 22 contributors may be used to endorse or promote products
nuclear@0 23 derived from this software without specific prior
nuclear@0 24 written permission of the assimp team.
nuclear@0 25
nuclear@0 26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
nuclear@0 27 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
nuclear@0 28 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
nuclear@0 29 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
nuclear@0 30 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
nuclear@0 31 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
nuclear@0 32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
nuclear@0 33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
nuclear@0 34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
nuclear@0 35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
nuclear@0 36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nuclear@0 37
nuclear@0 38 ----------------------------------------------------------------------
nuclear@0 39 */
nuclear@0 40
nuclear@0 41 /** @file IFCProfile.cpp
nuclear@0 42 * @brief Read profile and curves entities from IFC files
nuclear@0 43 */
nuclear@0 44
nuclear@0 45 #include "AssimpPCH.h"
nuclear@0 46
nuclear@0 47 #ifndef ASSIMP_BUILD_NO_IFC_IMPORTER
nuclear@0 48 #include "IFCUtil.h"
nuclear@0 49
nuclear@0 50 namespace Assimp {
nuclear@0 51 namespace IFC {
nuclear@0 52
nuclear@0 53 // ------------------------------------------------------------------------------------------------
nuclear@0 54 void ProcessPolyLine(const IfcPolyline& def, TempMesh& meshout, ConversionData& /*conv*/)
nuclear@0 55 {
nuclear@0 56 // this won't produce a valid mesh, it just spits out a list of vertices
nuclear@0 57 IfcVector3 t;
nuclear@0 58 BOOST_FOREACH(const IfcCartesianPoint& cp, def.Points) {
nuclear@0 59 ConvertCartesianPoint(t,cp);
nuclear@0 60 meshout.verts.push_back(t);
nuclear@0 61 }
nuclear@0 62 meshout.vertcnt.push_back(meshout.verts.size());
nuclear@0 63 }
nuclear@0 64
nuclear@0 65 // ------------------------------------------------------------------------------------------------
nuclear@0 66 bool ProcessCurve(const IfcCurve& curve, TempMesh& meshout, ConversionData& conv)
nuclear@0 67 {
nuclear@0 68 boost::scoped_ptr<const Curve> cv(Curve::Convert(curve,conv));
nuclear@0 69 if (!cv) {
nuclear@0 70 IFCImporter::LogWarn("skipping unknown IfcCurve entity, type is " + curve.GetClassName());
nuclear@0 71 return false;
nuclear@0 72 }
nuclear@0 73
nuclear@0 74 // we must have a bounded curve at this point
nuclear@0 75 if (const BoundedCurve* bc = dynamic_cast<const BoundedCurve*>(cv.get())) {
nuclear@0 76 try {
nuclear@0 77 bc->SampleDiscrete(meshout);
nuclear@0 78 }
nuclear@0 79 catch(const CurveError& cv) {
nuclear@0 80 IFCImporter::LogError(cv.s+ " (error occurred while processing curve)");
nuclear@0 81 return false;
nuclear@0 82 }
nuclear@0 83 meshout.vertcnt.push_back(meshout.verts.size());
nuclear@0 84 return true;
nuclear@0 85 }
nuclear@0 86
nuclear@0 87 IFCImporter::LogError("cannot use unbounded curve as profile");
nuclear@0 88 return false;
nuclear@0 89 }
nuclear@0 90
nuclear@0 91 // ------------------------------------------------------------------------------------------------
nuclear@0 92 void ProcessClosedProfile(const IfcArbitraryClosedProfileDef& def, TempMesh& meshout, ConversionData& conv)
nuclear@0 93 {
nuclear@0 94 ProcessCurve(def.OuterCurve,meshout,conv);
nuclear@0 95 }
nuclear@0 96
nuclear@0 97 // ------------------------------------------------------------------------------------------------
nuclear@0 98 void ProcessOpenProfile(const IfcArbitraryOpenProfileDef& def, TempMesh& meshout, ConversionData& conv)
nuclear@0 99 {
nuclear@0 100 ProcessCurve(def.Curve,meshout,conv);
nuclear@0 101 }
nuclear@0 102
nuclear@0 103 // ------------------------------------------------------------------------------------------------
nuclear@0 104 void ProcessParametrizedProfile(const IfcParameterizedProfileDef& def, TempMesh& meshout, ConversionData& conv)
nuclear@0 105 {
nuclear@0 106 if(const IfcRectangleProfileDef* const cprofile = def.ToPtr<IfcRectangleProfileDef>()) {
nuclear@0 107 const IfcFloat x = cprofile->XDim*0.5f, y = cprofile->YDim*0.5f;
nuclear@0 108
nuclear@0 109 meshout.verts.reserve(meshout.verts.size()+4);
nuclear@0 110 meshout.verts.push_back( IfcVector3( x, y, 0.f ));
nuclear@0 111 meshout.verts.push_back( IfcVector3(-x, y, 0.f ));
nuclear@0 112 meshout.verts.push_back( IfcVector3(-x,-y, 0.f ));
nuclear@0 113 meshout.verts.push_back( IfcVector3( x,-y, 0.f ));
nuclear@0 114 meshout.vertcnt.push_back(4);
nuclear@0 115 }
nuclear@0 116 else if( const IfcCircleProfileDef* const circle = def.ToPtr<IfcCircleProfileDef>()) {
nuclear@0 117 if( const IfcCircleHollowProfileDef* const hollow = def.ToPtr<IfcCircleHollowProfileDef>()) {
nuclear@0 118 // TODO
nuclear@0 119 }
nuclear@0 120 const size_t segments = 32;
nuclear@0 121 const IfcFloat delta = AI_MATH_TWO_PI_F/segments, radius = circle->Radius;
nuclear@0 122
nuclear@0 123 meshout.verts.reserve(segments);
nuclear@0 124
nuclear@0 125 IfcFloat angle = 0.f;
nuclear@0 126 for(size_t i = 0; i < segments; ++i, angle += delta) {
nuclear@0 127 meshout.verts.push_back( IfcVector3( cos(angle)*radius, sin(angle)*radius, 0.f ));
nuclear@0 128 }
nuclear@0 129
nuclear@0 130 meshout.vertcnt.push_back(segments);
nuclear@0 131 }
nuclear@0 132 else if( const IfcIShapeProfileDef* const ishape = def.ToPtr<IfcIShapeProfileDef>()) {
nuclear@0 133 // construct simplified IBeam shape
nuclear@0 134 const IfcFloat offset = (ishape->OverallWidth - ishape->WebThickness) / 2;
nuclear@0 135 const IfcFloat inner_height = ishape->OverallDepth - ishape->FlangeThickness * 2;
nuclear@0 136
nuclear@0 137 meshout.verts.reserve(12);
nuclear@0 138 meshout.verts.push_back(IfcVector3(0,0,0));
nuclear@0 139 meshout.verts.push_back(IfcVector3(0,ishape->FlangeThickness,0));
nuclear@0 140 meshout.verts.push_back(IfcVector3(offset,ishape->FlangeThickness,0));
nuclear@0 141 meshout.verts.push_back(IfcVector3(offset,ishape->FlangeThickness + inner_height,0));
nuclear@0 142 meshout.verts.push_back(IfcVector3(0,ishape->FlangeThickness + inner_height,0));
nuclear@0 143 meshout.verts.push_back(IfcVector3(0,ishape->OverallDepth,0));
nuclear@0 144 meshout.verts.push_back(IfcVector3(ishape->OverallWidth,ishape->OverallDepth,0));
nuclear@0 145 meshout.verts.push_back(IfcVector3(ishape->OverallWidth,ishape->FlangeThickness + inner_height,0));
nuclear@0 146 meshout.verts.push_back(IfcVector3(offset+ishape->WebThickness,ishape->FlangeThickness + inner_height,0));
nuclear@0 147 meshout.verts.push_back(IfcVector3(offset+ishape->WebThickness,ishape->FlangeThickness,0));
nuclear@0 148 meshout.verts.push_back(IfcVector3(ishape->OverallWidth,ishape->FlangeThickness,0));
nuclear@0 149 meshout.verts.push_back(IfcVector3(ishape->OverallWidth,0,0));
nuclear@0 150
nuclear@0 151 meshout.vertcnt.push_back(12);
nuclear@0 152 }
nuclear@0 153 else {
nuclear@0 154 IFCImporter::LogWarn("skipping unknown IfcParameterizedProfileDef entity, type is " + def.GetClassName());
nuclear@0 155 return;
nuclear@0 156 }
nuclear@0 157
nuclear@0 158 IfcMatrix4 trafo;
nuclear@0 159 ConvertAxisPlacement(trafo, *def.Position);
nuclear@0 160 meshout.Transform(trafo);
nuclear@0 161 }
nuclear@0 162
nuclear@0 163 // ------------------------------------------------------------------------------------------------
nuclear@0 164 bool ProcessProfile(const IfcProfileDef& prof, TempMesh& meshout, ConversionData& conv)
nuclear@0 165 {
nuclear@0 166 if(const IfcArbitraryClosedProfileDef* const cprofile = prof.ToPtr<IfcArbitraryClosedProfileDef>()) {
nuclear@0 167 ProcessClosedProfile(*cprofile,meshout,conv);
nuclear@0 168 }
nuclear@0 169 else if(const IfcArbitraryOpenProfileDef* const copen = prof.ToPtr<IfcArbitraryOpenProfileDef>()) {
nuclear@0 170 ProcessOpenProfile(*copen,meshout,conv);
nuclear@0 171 }
nuclear@0 172 else if(const IfcParameterizedProfileDef* const cparam = prof.ToPtr<IfcParameterizedProfileDef>()) {
nuclear@0 173 ProcessParametrizedProfile(*cparam,meshout,conv);
nuclear@0 174 }
nuclear@0 175 else {
nuclear@0 176 IFCImporter::LogWarn("skipping unknown IfcProfileDef entity, type is " + prof.GetClassName());
nuclear@0 177 return false;
nuclear@0 178 }
nuclear@0 179 meshout.RemoveAdjacentDuplicates();
nuclear@0 180 if (!meshout.vertcnt.size() || meshout.vertcnt.front() <= 1) {
nuclear@0 181 return false;
nuclear@0 182 }
nuclear@0 183 return true;
nuclear@0 184 }
nuclear@0 185
nuclear@0 186 } // ! IFC
nuclear@0 187 } // ! Assimp
nuclear@0 188
nuclear@0 189 #endif