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Diffstat (limited to 'src/3rdparty/assimp/code/X3DImporter_Geometry3D.cpp')
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diff --git a/src/3rdparty/assimp/code/X3DImporter_Geometry3D.cpp b/src/3rdparty/assimp/code/X3DImporter_Geometry3D.cpp new file mode 100644 index 000000000..b2e9a28f8 --- /dev/null +++ b/src/3rdparty/assimp/code/X3DImporter_Geometry3D.cpp @@ -0,0 +1,998 @@ +/* +Open Asset Import Library (assimp) +---------------------------------------------------------------------- + +Copyright (c) 2006-2017, assimp team + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the +following conditions are met: + +* Redistributions of source code must retain the above +copyright notice, this list of conditions and the +following disclaimer. + +* Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +---------------------------------------------------------------------- +*/ +/// \file X3DImporter_Geometry3D.cpp +/// \brief Parsing data from nodes of "Geometry3D" set of X3D. +/// \date 2015-2016 +/// \author smal.root@gmail.com + +#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER + +#include "X3DImporter.hpp" +#include "X3DImporter_Macro.hpp" + +// Header files, Assimp. +#include "StandardShapes.h" + +namespace Assimp +{ + +// <Box +// DEF="" ID +// USE="" IDREF +// size="2 2 2" SFVec3f [initializeOnly] +// solid="true" SFBool [initializeOnly] +// /> +// The Box node specifies a rectangular parallelepiped box centred at (0, 0, 0) in the local coordinate system and aligned with the local coordinate axes. +// By default, the box measures 2 units in each dimension, from -1 to +1. The size field specifies the extents of the box along the X-, Y-, and Z-axes +// respectively and each component value shall be greater than zero. +void X3DImporter::ParseNode_Geometry3D_Box() +{ + std::string def, use; + bool solid = true; + aiVector3D size(2, 2, 2); + CX3DImporter_NodeElement* ne( nullptr ); + + MACRO_ATTRREAD_LOOPBEG; + MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use); + MACRO_ATTRREAD_CHECK_REF("size", size, XML_ReadNode_GetAttrVal_AsVec3f); + MACRO_ATTRREAD_CHECK_RET("solid", solid, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_LOOPEND; + + // if "USE" defined then find already defined element. + if(!use.empty()) + { + MACRO_USE_CHECKANDAPPLY(def, use, ENET_Box, ne); + } + else + { + // create and if needed - define new geometry object. + ne = new CX3DImporter_NodeElement_Geometry3D(CX3DImporter_NodeElement::ENET_Box, NodeElement_Cur); + if(!def.empty()) ne->ID = def; + + GeometryHelper_MakeQL_RectParallelepiped(size, ((CX3DImporter_NodeElement_Geometry3D*)ne)->Vertices);// get quad list + ((CX3DImporter_NodeElement_Geometry3D*)ne)->Solid = solid; + ((CX3DImporter_NodeElement_Geometry3D*)ne)->NumIndices = 4; + // check for X3DMetadataObject childs. + if(!mReader->isEmptyElement()) + ParseNode_Metadata(ne, "Box"); + else + NodeElement_Cur->Child.push_back(ne);// add made object as child to current element + + NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph + }// if(!use.empty()) else +} + +// <Cone +// DEF="" ID +// USE="" IDREF +// bottom="true" SFBool [initializeOnly] +// bottomRadius="1" SFloat [initializeOnly] +// height="2" SFloat [initializeOnly] +// side="true" SFBool [initializeOnly] +// solid="true" SFBool [initializeOnly] +// /> +void X3DImporter::ParseNode_Geometry3D_Cone() +{ + std::string use, def; + bool bottom = true; + float bottomRadius = 1; + float height = 2; + bool side = true; + bool solid = true; + CX3DImporter_NodeElement* ne( nullptr ); + + MACRO_ATTRREAD_LOOPBEG; + MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use); + MACRO_ATTRREAD_CHECK_RET("solid", solid, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("side", side, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("bottom", bottom, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("height", height, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_CHECK_RET("bottomRadius", bottomRadius, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_LOOPEND; + + // if "USE" defined then find already defined element. + if(!use.empty()) + { + MACRO_USE_CHECKANDAPPLY(def, use, ENET_Cone, ne); + } + else + { + const unsigned int tess = 30;///TODO: IME tesselation factor through ai_property + + std::vector<aiVector3D> tvec;// temp array for vertices. + + // create and if needed - define new geometry object. + ne = new CX3DImporter_NodeElement_Geometry3D(CX3DImporter_NodeElement::ENET_Cone, NodeElement_Cur); + if(!def.empty()) ne->ID = def; + + // make cone or parts according to flags. + if(side) + { + StandardShapes::MakeCone(height, 0, bottomRadius, tess, tvec, !bottom); + } + else if(bottom) + { + StandardShapes::MakeCircle(bottomRadius, tess, tvec); + height = -(height / 2); + for(std::vector<aiVector3D>::iterator it = tvec.begin(); it != tvec.end(); it++) it->y = height;// y - because circle made in oXZ. + } + + // copy data from temp array + for(std::vector<aiVector3D>::iterator it = tvec.begin(); it != tvec.end(); it++) ((CX3DImporter_NodeElement_Geometry3D*)ne)->Vertices.push_back(*it); + + ((CX3DImporter_NodeElement_Geometry3D*)ne)->Solid = solid; + ((CX3DImporter_NodeElement_Geometry3D*)ne)->NumIndices = 3; + // check for X3DMetadataObject childs. + if(!mReader->isEmptyElement()) + ParseNode_Metadata(ne, "Cone"); + else + NodeElement_Cur->Child.push_back(ne);// add made object as child to current element + + NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph + }// if(!use.empty()) else +} + +// <Cylinder +// DEF="" ID +// USE="" IDREF +// bottom="true" SFBool [initializeOnly] +// height="2" SFloat [initializeOnly] +// radius="1" SFloat [initializeOnly] +// side="true" SFBool [initializeOnly] +// solid="true" SFBool [initializeOnly] +// top="true" SFBool [initializeOnly] +// /> +void X3DImporter::ParseNode_Geometry3D_Cylinder() +{ + std::string use, def; + bool bottom = true; + float height = 2; + float radius = 1; + bool side = true; + bool solid = true; + bool top = true; + CX3DImporter_NodeElement* ne( nullptr ); + + MACRO_ATTRREAD_LOOPBEG; + MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use); + MACRO_ATTRREAD_CHECK_RET("radius", radius, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_CHECK_RET("solid", solid, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("bottom", bottom, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("top", top, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("side", side, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("height", height, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_LOOPEND; + + // if "USE" defined then find already defined element. + if(!use.empty()) + { + MACRO_USE_CHECKANDAPPLY(def, use, ENET_Cylinder, ne); + } + else + { + const unsigned int tess = 30;///TODO: IME tesselation factor through ai_property + + std::vector<aiVector3D> tside;// temp array for vertices of side. + std::vector<aiVector3D> tcir;// temp array for vertices of circle. + + // create and if needed - define new geometry object. + ne = new CX3DImporter_NodeElement_Geometry3D(CX3DImporter_NodeElement::ENET_Cylinder, NodeElement_Cur); + if(!def.empty()) ne->ID = def; + + // make cilynder or parts according to flags. + if(side) StandardShapes::MakeCone(height, radius, radius, tess, tside, true); + + height /= 2;// height defined for whole cylinder, when creating top and bottom circle we are using just half of height. + if(top || bottom) StandardShapes::MakeCircle(radius, tess, tcir); + // copy data from temp arrays + std::list<aiVector3D>& vlist = ((CX3DImporter_NodeElement_Geometry3D*)ne)->Vertices;// just short alias. + + for(std::vector<aiVector3D>::iterator it = tside.begin(); it != tside.end(); it++) vlist.push_back(*it); + + if(top) + { + for(std::vector<aiVector3D>::iterator it = tcir.begin(); it != tcir.end(); it++) + { + (*it).y = height;// y - because circle made in oXZ. + vlist.push_back(*it); + } + }// if(top) + + if(bottom) + { + for(std::vector<aiVector3D>::iterator it = tcir.begin(); it != tcir.end(); it++) + { + (*it).y = -height;// y - because circle made in oXZ. + vlist.push_back(*it); + } + }// if(top) + + ((CX3DImporter_NodeElement_Geometry3D*)ne)->Solid = solid; + ((CX3DImporter_NodeElement_Geometry3D*)ne)->NumIndices = 3; + // check for X3DMetadataObject childs. + if(!mReader->isEmptyElement()) + ParseNode_Metadata(ne, "Cylinder"); + else + NodeElement_Cur->Child.push_back(ne);// add made object as child to current element + + NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph + }// if(!use.empty()) else +} + +// <ElevationGrid +// DEF="" ID +// USE="" IDREF +// ccw="true" SFBool [initializeOnly] +// colorPerVertex="true" SFBool [initializeOnly] +// creaseAngle="0" SFloat [initializeOnly] +// height="" MFloat [initializeOnly] +// normalPerVertex="true" SFBool [initializeOnly] +// solid="true" SFBool [initializeOnly] +// xDimension="0" SFInt32 [initializeOnly] +// xSpacing="1.0" SFloat [initializeOnly] +// zDimension="0" SFInt32 [initializeOnly] +// zSpacing="1.0" SFloat [initializeOnly] +// > +// <!-- ColorNormalTexCoordContentModel --> +// ColorNormalTexCoordContentModel can contain Color (or ColorRGBA), Normal and TextureCoordinate, in any order. No more than one instance of any single +// node type is allowed. A ProtoInstance node (with the proper node type) can be substituted for any node in this content model. +// </ElevationGrid> +// The ElevationGrid node specifies a uniform rectangular grid of varying height in the Y=0 plane of the local coordinate system. The geometry is described +// by a scalar array of height values that specify the height of a surface above each point of the grid. The xDimension and zDimension fields indicate +// the number of elements of the grid height array in the X and Z directions. Both xDimension and zDimension shall be greater than or equal to zero. +// If either the xDimension or the zDimension is less than two, the ElevationGrid contains no quadrilaterals. +void X3DImporter::ParseNode_Geometry3D_ElevationGrid() +{ + std::string use, def; + bool ccw = true; + bool colorPerVertex = true; + float creaseAngle = 0; + std::vector<float> height; + bool normalPerVertex = true; + bool solid = true; + int32_t xDimension = 0; + float xSpacing = 1; + int32_t zDimension = 0; + float zSpacing = 1; + CX3DImporter_NodeElement* ne( nullptr ); + + MACRO_ATTRREAD_LOOPBEG; + MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use); + MACRO_ATTRREAD_CHECK_RET("solid", solid, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("ccw", ccw, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("colorPerVertex", colorPerVertex, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("normalPerVertex", normalPerVertex, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("creaseAngle", creaseAngle, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_CHECK_REF("height", height, XML_ReadNode_GetAttrVal_AsArrF); + MACRO_ATTRREAD_CHECK_RET("xDimension", xDimension, XML_ReadNode_GetAttrVal_AsI32); + MACRO_ATTRREAD_CHECK_RET("xSpacing", xSpacing, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_CHECK_RET("zDimension", zDimension, XML_ReadNode_GetAttrVal_AsI32); + MACRO_ATTRREAD_CHECK_RET("zSpacing", zSpacing, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_LOOPEND; + + // if "USE" defined then find already defined element. + if(!use.empty()) + { + MACRO_USE_CHECKANDAPPLY(def, use, ENET_ElevationGrid, ne); + } + else + { + if((xSpacing == 0.0f) || (zSpacing == 0.0f)) throw DeadlyImportError("Spacing in <ElevationGrid> must be grater than zero."); + if((xDimension <= 0) || (zDimension <= 0)) throw DeadlyImportError("Dimension in <ElevationGrid> must be grater than zero."); + if((size_t)(xDimension * zDimension) != height.size()) Throw_IncorrectAttrValue("Heights count must be equal to \"xDimension * zDimension\""); + + // create and if needed - define new geometry object. + ne = new CX3DImporter_NodeElement_ElevationGrid(CX3DImporter_NodeElement::ENET_ElevationGrid, NodeElement_Cur); + if(!def.empty()) ne->ID = def; + + CX3DImporter_NodeElement_ElevationGrid& grid_alias = *((CX3DImporter_NodeElement_ElevationGrid*)ne);// create alias for conveience + + {// create grid vertices list + std::vector<float>::const_iterator he_it = height.begin(); + + for(int32_t zi = 0; zi < zDimension; zi++)// rows + { + for(int32_t xi = 0; xi < xDimension; xi++)// columns + { + aiVector3D tvec(xSpacing * xi, *he_it, zSpacing * zi); + + grid_alias.Vertices.push_back(tvec); + he_it++; + } + } + }// END: create grid vertices list + // + // create faces list. In "coordIdx" format + // + // check if we have quads + if((xDimension < 2) || (zDimension < 2))// only one element in dimension is set, create line set. + { + ((CX3DImporter_NodeElement_ElevationGrid*)ne)->NumIndices = 2;// will be holded as line set. + for(size_t i = 0, i_e = (grid_alias.Vertices.size() - 1); i < i_e; i++) + { + grid_alias.CoordIdx.push_back(static_cast<int32_t>(i)); + grid_alias.CoordIdx.push_back(static_cast<int32_t>(i + 1)); + grid_alias.CoordIdx.push_back(-1); + } + } + else// two or more elements in every dimension is set. create quad set. + { + ((CX3DImporter_NodeElement_ElevationGrid*)ne)->NumIndices = 4; + for(int32_t fzi = 0, fzi_e = (zDimension - 1); fzi < fzi_e; fzi++)// rows + { + for(int32_t fxi = 0, fxi_e = (xDimension - 1); fxi < fxi_e; fxi++)// columns + { + // points direction in face. + if(ccw) + { + // CCW: + // 3 2 + // 0 1 + grid_alias.CoordIdx.push_back((fzi + 1) * xDimension + fxi); + grid_alias.CoordIdx.push_back((fzi + 1) * xDimension + (fxi + 1)); + grid_alias.CoordIdx.push_back(fzi * xDimension + (fxi + 1)); + grid_alias.CoordIdx.push_back(fzi * xDimension + fxi); + } + else + { + // CW: + // 0 1 + // 3 2 + grid_alias.CoordIdx.push_back(fzi * xDimension + fxi); + grid_alias.CoordIdx.push_back(fzi * xDimension + (fxi + 1)); + grid_alias.CoordIdx.push_back((fzi + 1) * xDimension + (fxi + 1)); + grid_alias.CoordIdx.push_back((fzi + 1) * xDimension + fxi); + }// if(ccw) else + + grid_alias.CoordIdx.push_back(-1); + }// for(int32_t fxi = 0, fxi_e = (xDimension - 1); fxi < fxi_e; fxi++) + }// for(int32_t fzi = 0, fzi_e = (zDimension - 1); fzi < fzi_e; fzi++) + }// if((xDimension < 2) || (zDimension < 2)) else + + grid_alias.ColorPerVertex = colorPerVertex; + grid_alias.NormalPerVertex = normalPerVertex; + grid_alias.CreaseAngle = creaseAngle; + grid_alias.Solid = solid; + // check for child nodes + if(!mReader->isEmptyElement()) + { + ParseHelper_Node_Enter(ne); + MACRO_NODECHECK_LOOPBEGIN("ElevationGrid"); + // check for X3DComposedGeometryNodes + if(XML_CheckNode_NameEqual("Color")) { ParseNode_Rendering_Color(); continue; } + if(XML_CheckNode_NameEqual("ColorRGBA")) { ParseNode_Rendering_ColorRGBA(); continue; } + if(XML_CheckNode_NameEqual("Normal")) { ParseNode_Rendering_Normal(); continue; } + if(XML_CheckNode_NameEqual("TextureCoordinate")) { ParseNode_Texturing_TextureCoordinate(); continue; } + // check for X3DMetadataObject + if(!ParseHelper_CheckRead_X3DMetadataObject()) XML_CheckNode_SkipUnsupported("ElevationGrid"); + + MACRO_NODECHECK_LOOPEND("ElevationGrid"); + ParseHelper_Node_Exit(); + }// if(!mReader->isEmptyElement()) + else + { + NodeElement_Cur->Child.push_back(ne);// add made object as child to current element + }// if(!mReader->isEmptyElement()) else + + NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph + }// if(!use.empty()) else +} + +template<typename TVector> +static void GeometryHelper_Extrusion_CurveIsClosed(std::vector<TVector>& pCurve, const bool pDropTail, const bool pRemoveLastPoint, bool& pCurveIsClosed) +{ + size_t cur_sz = pCurve.size(); + + pCurveIsClosed = false; + // for curve with less than four points checking is have no sense, + if(cur_sz < 4) return; + + for(size_t s = 3, s_e = cur_sz; s < s_e; s++) + { + // search for first point of duplicated part. + if(pCurve[0] == pCurve[s]) + { + bool found = true; + + // check if tail(indexed by b2) is duplicate of head(indexed by b1). + for(size_t b1 = 1, b2 = (s + 1); b2 < cur_sz; b1++, b2++) + { + if(pCurve[b1] != pCurve[b2]) + {// points not match: clear flag and break loop. + found = false; + + break; + } + }// for(size_t b1 = 1, b2 = (s + 1); b2 < cur_sz; b1++, b2++) + + // if duplicate tail is found then drop or not it depending on flags. + if(found) + { + pCurveIsClosed = true; + if(pDropTail) + { + if(!pRemoveLastPoint) s++;// prepare value for iterator's arithmetics. + + pCurve.erase(pCurve.begin() + s, pCurve.end());// remove tail + } + + break; + }// if(found) + }// if(pCurve[0] == pCurve[s]) + }// for(size_t s = 3, s_e = (cur_sz - 1); s < s_e; s++) +} + +static aiVector3D GeometryHelper_Extrusion_GetNextY(const size_t pSpine_PointIdx, const std::vector<aiVector3D>& pSpine, const bool pSpine_Closed) +{ + const size_t spine_idx_last = pSpine.size() - 1; + aiVector3D tvec; + + if((pSpine_PointIdx == 0) || (pSpine_PointIdx == spine_idx_last))// at first special cases + { + if(pSpine_Closed) + {// If the spine curve is closed: The SCP for the first and last points is the same and is found using (spine[1] - spine[n - 2]) to compute the Y-axis. + // As we even for closed spine curve last and first point in pSpine are not the same: duplicates(spine[n - 1] which are equivalent to spine[0]) + // in tail are removed. + // So, last point in pSpine is a spine[n - 2] + tvec = pSpine[1] - pSpine[spine_idx_last]; + } + else if(pSpine_PointIdx == 0) + {// The Y-axis used for the first point is the vector from spine[0] to spine[1] + tvec = pSpine[1] - pSpine[0]; + } + else + {// The Y-axis used for the last point it is the vector from spine[n-2] to spine[n-1]. In our case(see above about droping tail) spine[n - 1] is + // the spine[0]. + tvec = pSpine[spine_idx_last] - pSpine[spine_idx_last - 1]; + } + }// if((pSpine_PointIdx == 0) || (pSpine_PointIdx == spine_idx_last)) + else + {// For all points other than the first or last: The Y-axis for spine[i] is found by normalizing the vector defined by (spine[i+1] - spine[i-1]). + tvec = pSpine[pSpine_PointIdx + 1] - pSpine[pSpine_PointIdx - 1]; + }// if((pSpine_PointIdx == 0) || (pSpine_PointIdx == spine_idx_last)) else + + return tvec.Normalize(); +} + +static aiVector3D GeometryHelper_Extrusion_GetNextZ(const size_t pSpine_PointIdx, const std::vector<aiVector3D>& pSpine, const bool pSpine_Closed, + const aiVector3D pVecZ_Prev) +{ + const aiVector3D zero_vec(0); + const size_t spine_idx_last = pSpine.size() - 1; + + aiVector3D tvec; + + // at first special cases + if(pSpine.size() < 3)// spine have not enough points for vector calculations. + { + tvec.Set(0, 0, 1); + } + else if(pSpine_PointIdx == 0)// special case: first point + { + if(pSpine_Closed)// for calculating use previous point in curve s[n - 2]. In list it's a last point, because point s[n - 1] was removed as duplicate. + { + tvec = (pSpine[1] - pSpine[0]) ^ (pSpine[spine_idx_last] - pSpine[0]); + } + else // for not closed curve first and next point(s[0] and s[1]) has the same vector Z. + { + bool found = false; + + // As said: "If the Z-axis of the first point is undefined (because the spine is not closed and the first two spine segments are collinear) + // then the Z-axis for the first spine point with a defined Z-axis is used." + // Walk through spine and find Z. + for(size_t next_point = 2; (next_point <= spine_idx_last) && !found; next_point++) + { + // (pSpine[2] - pSpine[1]) ^ (pSpine[0] - pSpine[1]) + tvec = (pSpine[next_point] - pSpine[next_point - 1]) ^ (pSpine[next_point - 2] - pSpine[next_point - 1]); + found = !tvec.Equal(zero_vec); + } + + // if entire spine are collinear then use OZ axis. + if(!found) tvec.Set(0, 0, 1); + }// if(pSpine_Closed) else + }// else if(pSpine_PointIdx == 0) + else if(pSpine_PointIdx == spine_idx_last)// special case: last point + { + if(pSpine_Closed) + {// do not forget that real last point s[n - 1] is removed as duplicated. And in this case we are calculating vector Z for point s[n - 2]. + tvec = (pSpine[0] - pSpine[pSpine_PointIdx]) ^ (pSpine[pSpine_PointIdx - 1] - pSpine[pSpine_PointIdx]); + // if taken spine vectors are collinear then use previous vector Z. + if(tvec.Equal(zero_vec)) tvec = pVecZ_Prev; + } + else + {// vector Z for last point of not closed curve is previous vector Z. + tvec = pVecZ_Prev; + } + } + else// regular point + { + tvec = (pSpine[pSpine_PointIdx + 1] - pSpine[pSpine_PointIdx]) ^ (pSpine[pSpine_PointIdx - 1] - pSpine[pSpine_PointIdx]); + // if taken spine vectors are collinear then use previous vector Z. + if(tvec.Equal(zero_vec)) tvec = pVecZ_Prev; + } + + // After determining the Z-axis, its dot product with the Z-axis of the previous spine point is computed. If this value is negative, the Z-axis + // is flipped (multiplied by -1). + if((tvec * pVecZ_Prev) < 0) tvec = -tvec; + + return tvec.Normalize(); +} + +// <Extrusion +// DEF="" ID +// USE="" IDREF +// beginCap="true" SFBool [initializeOnly] +// ccw="true" SFBool [initializeOnly] +// convex="true" SFBool [initializeOnly] +// creaseAngle="0.0" SFloat [initializeOnly] +// crossSection="1 1 1 -1 -1 -1 -1 1 1 1" MFVec2f [initializeOnly] +// endCap="true" SFBool [initializeOnly] +// orientation="0 0 1 0" MFRotation [initializeOnly] +// scale="1 1" MFVec2f [initializeOnly] +// solid="true" SFBool [initializeOnly] +// spine="0 0 0 0 1 0" MFVec3f [initializeOnly] +// /> +void X3DImporter::ParseNode_Geometry3D_Extrusion() +{ + std::string use, def; + bool beginCap = true; + bool ccw = true; + bool convex = true; + float creaseAngle = 0; + std::vector<aiVector2D> crossSection; + bool endCap = true; + std::vector<float> orientation; + std::vector<aiVector2D> scale; + bool solid = true; + std::vector<aiVector3D> spine; + CX3DImporter_NodeElement* ne( nullptr ); + + MACRO_ATTRREAD_LOOPBEG; + MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use); + MACRO_ATTRREAD_CHECK_RET("beginCap", beginCap, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("ccw", ccw, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("convex", convex, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("creaseAngle", creaseAngle, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_CHECK_REF("crossSection", crossSection, XML_ReadNode_GetAttrVal_AsArrVec2f); + MACRO_ATTRREAD_CHECK_RET("endCap", endCap, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_REF("orientation", orientation, XML_ReadNode_GetAttrVal_AsArrF); + MACRO_ATTRREAD_CHECK_REF("scale", scale, XML_ReadNode_GetAttrVal_AsArrVec2f); + MACRO_ATTRREAD_CHECK_RET("solid", solid, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_REF("spine", spine, XML_ReadNode_GetAttrVal_AsArrVec3f); + MACRO_ATTRREAD_LOOPEND; + + // if "USE" defined then find already defined element. + if(!use.empty()) + { + MACRO_USE_CHECKANDAPPLY(def, use, ENET_Extrusion, ne); + } + else + { + // + // check if default values must be assigned + // + if(spine.size() == 0) + { + spine.resize(2); + spine[0].Set(0, 0, 0), spine[1].Set(0, 1, 0); + } + else if(spine.size() == 1) + { + throw DeadlyImportError("ParseNode_Geometry3D_Extrusion. Spine must have at least two points."); + } + + if(crossSection.size() == 0) + { + crossSection.resize(5); + crossSection[0].Set(1, 1), crossSection[1].Set(1, -1), crossSection[2].Set(-1, -1), crossSection[3].Set(-1, 1), crossSection[4].Set(1, 1); + } + + {// orientation + size_t ori_size = orientation.size() / 4; + + if(ori_size < spine.size()) + { + float add_ori[4];// values that will be added + + if(ori_size == 1)// if "orientation" has one element(means one MFRotation with four components) then use it value for all spine points. + { + add_ori[0] = orientation[0], add_ori[1] = orientation[1], add_ori[2] = orientation[2], add_ori[3] = orientation[3]; + } + else// else - use default values + { + add_ori[0] = 0, add_ori[1] = 0, add_ori[2] = 1, add_ori[3] = 0; + } + + orientation.reserve(spine.size() * 4); + for(size_t i = 0, i_e = (spine.size() - ori_size); i < i_e; i++) + orientation.push_back(add_ori[0]), orientation.push_back(add_ori[1]), orientation.push_back(add_ori[2]), orientation.push_back(add_ori[3]); + } + + if(orientation.size() % 4) throw DeadlyImportError("Attribute \"orientation\" in <Extrusion> must has multiple four quantity of numbers."); + }// END: orientation + + {// scale + if(scale.size() < spine.size()) + { + aiVector2D add_sc; + + if(scale.size() == 1)// if "scale" has one element then use it value for all spine points. + add_sc = scale[0]; + else// else - use default values + add_sc.Set(1, 1); + + scale.reserve(spine.size()); + for(size_t i = 0, i_e = (spine.size() - scale.size()); i < i_e; i++) scale.push_back(add_sc); + } + }// END: scale + // + // create and if needed - define new geometry object. + // + ne = new CX3DImporter_NodeElement_IndexedSet(CX3DImporter_NodeElement::ENET_Extrusion, NodeElement_Cur); + if(!def.empty()) ne->ID = def; + + CX3DImporter_NodeElement_IndexedSet& ext_alias = *((CX3DImporter_NodeElement_IndexedSet*)ne);// create alias for conveience + // assign part of input data + ext_alias.CCW = ccw; + ext_alias.Convex = convex; + ext_alias.CreaseAngle = creaseAngle; + ext_alias.Solid = solid; + + // + // How we done it at all? + // 1. At first we will calculate array of basises for every point in spine(look SCP in ISO-dic). Also "orientation" vector + // are applied vor every basis. + // 2. After that we can create array of point sets: which are scaled, transferred to basis of relative basis and at final translated to real position + // using relative spine point. + // 3. Next step is creating CoordIdx array(do not forget "-1" delimiter). While creating CoordIdx also created faces for begin and end caps, if + // needed. While createing CootdIdx is taking in account CCW flag. + // 4. The last step: create Vertices list. + // + bool spine_closed;// flag: true if spine curve is closed. + bool cross_closed;// flag: true if cross curve is closed. + std::vector<aiMatrix3x3> basis_arr;// array of basises. ROW_a - X, ROW_b - Y, ROW_c - Z. + std::vector<std::vector<aiVector3D> > pointset_arr;// array of point sets: cross curves. + + // detect closed curves + GeometryHelper_Extrusion_CurveIsClosed(crossSection, true, true, cross_closed);// true - drop tail, true - remove duplicate end. + GeometryHelper_Extrusion_CurveIsClosed(spine, true, true, spine_closed);// true - drop tail, true - remove duplicate end. + // If both cap are requested and spine curve is closed then we can make only one cap. Because second cap will be the same surface. + if(spine_closed) + { + beginCap |= endCap; + endCap = false; + } + + {// 1. Calculate array of basises. + aiMatrix4x4 rotmat; + aiVector3D vecX(0), vecY(0), vecZ(0); + + basis_arr.resize(spine.size()); + for(size_t i = 0, i_e = spine.size(); i < i_e; i++) + { + aiVector3D tvec; + + // get axises of basis. + vecY = GeometryHelper_Extrusion_GetNextY(i, spine, spine_closed); + vecZ = GeometryHelper_Extrusion_GetNextZ(i, spine, spine_closed, vecZ); + vecX = (vecY ^ vecZ).Normalize(); + // get rotation matrix and apply "orientation" to basis + aiMatrix4x4::Rotation(orientation[i * 4 + 3], aiVector3D(orientation[i * 4], orientation[i * 4 + 1], orientation[i * 4 + 2]), rotmat); + tvec = vecX, tvec *= rotmat, basis_arr[i].a1 = tvec.x, basis_arr[i].a2 = tvec.y, basis_arr[i].a3 = tvec.z; + tvec = vecY, tvec *= rotmat, basis_arr[i].b1 = tvec.x, basis_arr[i].b2 = tvec.y, basis_arr[i].b3 = tvec.z; + tvec = vecZ, tvec *= rotmat, basis_arr[i].c1 = tvec.x, basis_arr[i].c2 = tvec.y, basis_arr[i].c3 = tvec.z; + }// for(size_t i = 0, i_e = spine.size(); i < i_e; i++) + }// END: 1. Calculate array of basises + + {// 2. Create array of point sets. + aiMatrix4x4 scmat; + std::vector<aiVector3D> tcross(crossSection.size()); + + pointset_arr.resize(spine.size()); + for(size_t spi = 0, spi_e = spine.size(); spi < spi_e; spi++) + { + aiVector3D tc23vec; + + tc23vec.Set(scale[spi].x, 0, scale[spi].y); + aiMatrix4x4::Scaling(tc23vec, scmat); + for(size_t cri = 0, cri_e = crossSection.size(); cri < cri_e; cri++) + { + aiVector3D tvecX, tvecY, tvecZ; + + tc23vec.Set(crossSection[cri].x, 0, crossSection[cri].y); + // apply scaling to point + tcross[cri] = scmat * tc23vec; + // + // transfer point to new basis + // calculate coordinate in new basis + tvecX.Set(basis_arr[spi].a1, basis_arr[spi].a2, basis_arr[spi].a3), tvecX *= tcross[cri].x; + tvecY.Set(basis_arr[spi].b1, basis_arr[spi].b2, basis_arr[spi].b3), tvecY *= tcross[cri].y; + tvecZ.Set(basis_arr[spi].c1, basis_arr[spi].c2, basis_arr[spi].c3), tvecZ *= tcross[cri].z; + // apply new coordinates and translate it to spine point. + tcross[cri] = tvecX + tvecY + tvecZ + spine[spi]; + }// for(size_t cri = 0, cri_e = crossSection.size(); cri < cri_e; i++) + + pointset_arr[spi] = tcross;// store transferred point set + }// for(size_t spi = 0, spi_e = spine.size(); spi < spi_e; i++) + }// END: 2. Create array of point sets. + + {// 3. Create CoordIdx. + // add caps if needed + if(beginCap) + { + // add cap as polygon. vertices of cap are places at begin, so just add numbers from zero. + for(size_t i = 0, i_e = crossSection.size(); i < i_e; i++) ext_alias.CoordIndex.push_back(static_cast<int32_t>(i)); + + // add delimiter + ext_alias.CoordIndex.push_back(-1); + }// if(beginCap) + + if(endCap) + { + // add cap as polygon. vertices of cap are places at end, as for beginCap use just sequence of numbers but with offset. + size_t beg = (pointset_arr.size() - 1) * crossSection.size(); + + for(size_t i = beg, i_e = (beg + crossSection.size()); i < i_e; i++) ext_alias.CoordIndex.push_back(static_cast<int32_t>(i)); + + // add delimiter + ext_alias.CoordIndex.push_back(-1); + }// if(beginCap) + + // add quads + for(size_t spi = 0, spi_e = (spine.size() - 1); spi <= spi_e; spi++) + { + const size_t cr_sz = crossSection.size(); + const size_t cr_last = crossSection.size() - 1; + + size_t right_col;// hold index basis for points of quad placed in right column; + + if(spi != spi_e) + right_col = spi + 1; + else if(spine_closed)// if spine curve is closed then one more quad is needed: between first and last points of curve. + right_col = 0; + else + break;// if spine curve is not closed then break the loop, because spi is out of range for that type of spine. + + for(size_t cri = 0; cri < cr_sz; cri++) + { + if(cri != cr_last) + { + MACRO_FACE_ADD_QUAD(ccw, ext_alias.CoordIndex, + static_cast<int32_t>(spi * cr_sz + cri), + static_cast<int32_t>(right_col * cr_sz + cri), + static_cast<int32_t>(right_col * cr_sz + cri + 1), + static_cast<int32_t>(spi * cr_sz + cri + 1)); + // add delimiter + ext_alias.CoordIndex.push_back(-1); + } + else if(cross_closed)// if cross curve is closed then one more quad is needed: between first and last points of curve. + { + MACRO_FACE_ADD_QUAD(ccw, ext_alias.CoordIndex, + static_cast<int32_t>(spi * cr_sz + cri), + static_cast<int32_t>(right_col * cr_sz + cri), + static_cast<int32_t>(right_col * cr_sz + 0), + static_cast<int32_t>(spi * cr_sz + 0)); + // add delimiter + ext_alias.CoordIndex.push_back(-1); + } + }// for(size_t cri = 0; cri < cr_sz; cri++) + }// for(size_t spi = 0, spi_e = (spine.size() - 2); spi < spi_e; spi++) + }// END: 3. Create CoordIdx. + + {// 4. Create vertices list. + // just copy all vertices + for(size_t spi = 0, spi_e = spine.size(); spi < spi_e; spi++) + { + for(size_t cri = 0, cri_e = crossSection.size(); cri < cri_e; cri++) + { + ext_alias.Vertices.push_back(pointset_arr[spi][cri]); + } + } + }// END: 4. Create vertices list. +//PrintVectorSet("Ext. CoordIdx", ext_alias.CoordIndex); +//PrintVectorSet("Ext. Vertices", ext_alias.Vertices); + // check for child nodes + if(!mReader->isEmptyElement()) + ParseNode_Metadata(ne, "Extrusion"); + else + NodeElement_Cur->Child.push_back(ne);// add made object as child to current element + + NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph + }// if(!use.empty()) else +} + +// <IndexedFaceSet +// DEF="" ID +// USE="" IDREF +// ccw="true" SFBool [initializeOnly] +// colorIndex="" MFInt32 [initializeOnly] +// colorPerVertex="true" SFBool [initializeOnly] +// convex="true" SFBool [initializeOnly] +// coordIndex="" MFInt32 [initializeOnly] +// creaseAngle="0" SFFloat [initializeOnly] +// normalIndex="" MFInt32 [initializeOnly] +// normalPerVertex="true" SFBool [initializeOnly] +// solid="true" SFBool [initializeOnly] +// texCoordIndex="" MFInt32 [initializeOnly] +// > +// <!-- ComposedGeometryContentModel --> +// ComposedGeometryContentModel is the child-node content model corresponding to X3DComposedGeometryNodes. It can contain Color (or ColorRGBA), Coordinate, +// Normal and TextureCoordinate, in any order. No more than one instance of these nodes is allowed. Multiple VertexAttribute (FloatVertexAttribute, +// Matrix3VertexAttribute, Matrix4VertexAttribute) nodes can also be contained. +// A ProtoInstance node (with the proper node type) can be substituted for any node in this content model. +// </IndexedFaceSet> +void X3DImporter::ParseNode_Geometry3D_IndexedFaceSet() +{ + std::string use, def; + bool ccw = true; + std::vector<int32_t> colorIndex; + bool colorPerVertex = true; + bool convex = true; + std::vector<int32_t> coordIndex; + float creaseAngle = 0; + std::vector<int32_t> normalIndex; + bool normalPerVertex = true; + bool solid = true; + std::vector<int32_t> texCoordIndex; + CX3DImporter_NodeElement* ne( nullptr ); + + MACRO_ATTRREAD_LOOPBEG; + MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use); + MACRO_ATTRREAD_CHECK_RET("ccw", ccw, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_REF("colorIndex", colorIndex, XML_ReadNode_GetAttrVal_AsArrI32); + MACRO_ATTRREAD_CHECK_RET("colorPerVertex", colorPerVertex, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("convex", convex, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_REF("coordIndex", coordIndex, XML_ReadNode_GetAttrVal_AsArrI32); + MACRO_ATTRREAD_CHECK_RET("creaseAngle", creaseAngle, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_CHECK_REF("normalIndex", normalIndex, XML_ReadNode_GetAttrVal_AsArrI32); + MACRO_ATTRREAD_CHECK_RET("normalPerVertex", normalPerVertex, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_RET("solid", solid, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_CHECK_REF("texCoordIndex", texCoordIndex, XML_ReadNode_GetAttrVal_AsArrI32); + MACRO_ATTRREAD_LOOPEND; + + // if "USE" defined then find already defined element. + if(!use.empty()) + { + MACRO_USE_CHECKANDAPPLY(def, use, ENET_IndexedFaceSet, ne); + } + else + { + // check data + if(coordIndex.size() == 0) throw DeadlyImportError("IndexedFaceSet must contain not empty \"coordIndex\" attribute."); + + // create and if needed - define new geometry object. + ne = new CX3DImporter_NodeElement_IndexedSet(CX3DImporter_NodeElement::ENET_IndexedFaceSet, NodeElement_Cur); + if(!def.empty()) ne->ID = def; + + CX3DImporter_NodeElement_IndexedSet& ne_alias = *((CX3DImporter_NodeElement_IndexedSet*)ne); + + ne_alias.CCW = ccw; + ne_alias.ColorIndex = colorIndex; + ne_alias.ColorPerVertex = colorPerVertex; + ne_alias.Convex = convex; + ne_alias.CoordIndex = coordIndex; + ne_alias.CreaseAngle = creaseAngle; + ne_alias.NormalIndex = normalIndex; + ne_alias.NormalPerVertex = normalPerVertex; + ne_alias.Solid = solid; + ne_alias.TexCoordIndex = texCoordIndex; + // check for child nodes + if(!mReader->isEmptyElement()) + { + ParseHelper_Node_Enter(ne); + MACRO_NODECHECK_LOOPBEGIN("IndexedFaceSet"); + // check for X3DComposedGeometryNodes + if(XML_CheckNode_NameEqual("Color")) { ParseNode_Rendering_Color(); continue; } + if(XML_CheckNode_NameEqual("ColorRGBA")) { ParseNode_Rendering_ColorRGBA(); continue; } + if(XML_CheckNode_NameEqual("Coordinate")) { ParseNode_Rendering_Coordinate(); continue; } + if(XML_CheckNode_NameEqual("Normal")) { ParseNode_Rendering_Normal(); continue; } + if(XML_CheckNode_NameEqual("TextureCoordinate")) { ParseNode_Texturing_TextureCoordinate(); continue; } + // check for X3DMetadataObject + if(!ParseHelper_CheckRead_X3DMetadataObject()) XML_CheckNode_SkipUnsupported("IndexedFaceSet"); + + MACRO_NODECHECK_LOOPEND("IndexedFaceSet"); + ParseHelper_Node_Exit(); + }// if(!mReader->isEmptyElement()) + else + { + NodeElement_Cur->Child.push_back(ne);// add made object as child to current element + } + + NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph + }// if(!use.empty()) else +} + +// <Sphere +// DEF="" ID +// USE="" IDREF +// radius="1" SFloat [initializeOnly] +// solid="true" SFBool [initializeOnly] +// /> +void X3DImporter::ParseNode_Geometry3D_Sphere() +{ + std::string use, def; + ai_real radius = 1; + bool solid = true; + CX3DImporter_NodeElement* ne( nullptr ); + + MACRO_ATTRREAD_LOOPBEG; + MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use); + MACRO_ATTRREAD_CHECK_RET("radius", radius, XML_ReadNode_GetAttrVal_AsFloat); + MACRO_ATTRREAD_CHECK_RET("solid", solid, XML_ReadNode_GetAttrVal_AsBool); + MACRO_ATTRREAD_LOOPEND; + + // if "USE" defined then find already defined element. + if(!use.empty()) + { + MACRO_USE_CHECKANDAPPLY(def, use, ENET_Sphere, ne); + } + else + { + const unsigned int tess = 3;///TODO: IME tesselation factor through ai_property + + std::vector<aiVector3D> tlist; + + // create and if needed - define new geometry object. + ne = new CX3DImporter_NodeElement_Geometry3D(CX3DImporter_NodeElement::ENET_Sphere, NodeElement_Cur); + if(!def.empty()) ne->ID = def; + + StandardShapes::MakeSphere(tess, tlist); + // copy data from temp array and apply scale + for(std::vector<aiVector3D>::iterator it = tlist.begin(); it != tlist.end(); it++) + { + ((CX3DImporter_NodeElement_Geometry3D*)ne)->Vertices.push_back(*it * radius); + } + + ((CX3DImporter_NodeElement_Geometry3D*)ne)->Solid = solid; + ((CX3DImporter_NodeElement_Geometry3D*)ne)->NumIndices = 3; + // check for X3DMetadataObject childs. + if(!mReader->isEmptyElement()) + ParseNode_Metadata(ne, "Sphere"); + else + NodeElement_Cur->Child.push_back(ne);// add made object as child to current element + + NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph + }// if(!use.empty()) else +} + +}// namespace Assimp + +#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER |