c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
147 lines
3.4 KiB
C++
147 lines
3.4 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup freestyle
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* \brief Class to define a chain of viewedges.
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*/
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#include "Chain.h"
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#include "../view_map/ViewMapAdvancedIterators.h"
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#include "../view_map/ViewMapIterators.h"
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namespace Freestyle {
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void Chain::push_viewedge_back(ViewEdge *iViewEdge, bool orientation)
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{
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ViewEdge::vertex_iterator v;
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ViewEdge::vertex_iterator vend;
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ViewEdge::vertex_iterator vfirst;
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Vec3r previous, current;
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if (true == orientation) {
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v = iViewEdge->vertices_begin();
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vfirst = v;
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vend = iViewEdge->vertices_end();
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}
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else {
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v = iViewEdge->vertices_last();
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vfirst = v;
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vend = iViewEdge->vertices_end();
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}
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if (!_Vertices.empty()) {
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previous = _Vertices.back()->point2d();
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if (orientation) {
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++v;
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}
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else {
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--v;
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}
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// Ensure the continuity of underlying FEdges
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CurvePoint *cp =
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_Vertices.back(); // assumed to be instantiated as new CurvePoint(iSVertex, 0, 0.0f);
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SVertex *sv_first = (*vfirst);
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FEdge *fe = _fedgeB->duplicate();
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fe->setTemporary(true);
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fe->setVertexB(sv_first);
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fe->vertexA()->shape()->AddEdge(fe);
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fe->vertexA()->AddFEdge(fe);
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fe->vertexB()->AddFEdge(fe);
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cp->setA(sv_first);
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}
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else {
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previous = (*v)->point2d();
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}
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do {
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current = (*v)->point2d();
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Curve::push_vertex_back(*v);
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//_Length += (current - previous).norm();
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previous = current;
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if (orientation) {
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++v;
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}
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else {
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--v;
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}
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} while ((v != vend) && (v != vfirst));
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if (v == vfirst) {
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// Add last one:
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current = (*v)->point2d();
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Curve::push_vertex_back(*v);
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//_Length += (current - previous).norm();
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}
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_fedgeB = (orientation) ? iViewEdge->fedgeB() : iViewEdge->fedgeA();
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}
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void Chain::push_viewedge_front(ViewEdge *iViewEdge, bool orientation)
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{
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orientation = !orientation;
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ViewEdge::vertex_iterator v;
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ViewEdge::vertex_iterator vend;
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ViewEdge::vertex_iterator vfirst;
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Vec3r previous, current;
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if (true == orientation) {
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v = iViewEdge->vertices_begin();
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vfirst = v;
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vend = iViewEdge->vertices_end();
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}
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else {
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v = iViewEdge->vertices_last();
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vfirst = v;
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vend = iViewEdge->vertices_end();
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}
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if (!_Vertices.empty()) {
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previous = _Vertices.front()->point2d();
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if (orientation) {
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++v;
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}
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else {
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--v;
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}
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// Ensure the continuity of underlying FEdges
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CurvePoint *cp =
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_Vertices.front(); // assumed to be instantiated as new CurvePoint(iSVertex, 0, 0.0f);
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SVertex *sv_last = cp->A();
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SVertex *sv_curr = (*v);
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FEdge *fe = (orientation) ? iViewEdge->fedgeA() : iViewEdge->fedgeB();
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FEdge *fe2 = fe->duplicate();
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fe2->setTemporary(true);
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fe2->setVertexA(sv_curr);
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fe2->setVertexB(sv_last);
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sv_last->AddFEdge(fe2);
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sv_curr->AddFEdge(fe2);
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sv_curr->shape()->AddEdge(fe2);
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}
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else {
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previous = (*v)->point2d();
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}
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do {
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current = (*v)->point2d();
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Curve::push_vertex_front((*v));
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//_Length += (current - previous).norm();
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previous = current;
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if (orientation) {
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++v;
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}
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else {
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--v;
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}
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} while ((v != vend) && (v != vfirst));
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if (v == vfirst) {
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// Add last one:
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current = (*v)->point2d();
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Curve::push_vertex_front(*v);
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//_Length += (current - previous).norm();
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}
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if (!_fedgeB) {
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_fedgeB = (orientation) ? iViewEdge->fedgeB() : iViewEdge->fedgeA();
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}
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}
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} /* namespace Freestyle */
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