diff options
Diffstat (limited to 'src/3rdparty/poly2tri/sweep/sweep_context.cpp')
| -rw-r--r-- | src/3rdparty/poly2tri/sweep/sweep_context.cpp | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/src/3rdparty/poly2tri/sweep/sweep_context.cpp b/src/3rdparty/poly2tri/sweep/sweep_context.cpp deleted file mode 100644 index 24dde11f..00000000 --- a/src/3rdparty/poly2tri/sweep/sweep_context.cpp +++ /dev/null @@ -1,216 +0,0 @@ -/* - * Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors - * http://code.google.com/p/poly2tri/ - * - * All rights reserved. - * - * Redistribution and use 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 Poly2Tri nor the names of its contributors may be - * used to endorse or promote products derived from this software without specific - * prior written permission. - * - * 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. - */ -#include "sweep_context.h" -#include <algorithm> -#include "advancing_front.h" - -namespace p2t { - -SweepContext::SweepContext(std::vector<Point*> polyline) : - front_(0), - head_(0), - tail_(0), - af_head_(0), - af_middle_(0), - af_tail_(0) -{ - basin = Basin(); - edge_event = EdgeEvent(); - - points_ = polyline; - - InitEdges(points_); -} - -void SweepContext::AddHole(std::vector<Point*> polyline) -{ - InitEdges(polyline); - for (unsigned int i = 0; i < polyline.size(); i++) { - points_.push_back(polyline[i]); - } -} - -void SweepContext::AddPoint(Point* point) { - points_.push_back(point); -} - -std::vector<Triangle*> SweepContext::GetTriangles() -{ - return triangles_; -} - -std::list<Triangle*> SweepContext::GetMap() -{ - return map_; -} - -void SweepContext::InitTriangulation() -{ - double xmax(points_[0]->x), xmin(points_[0]->x); - double ymax(points_[0]->y), ymin(points_[0]->y); - - // Calculate bounds. - for (unsigned int i = 0; i < points_.size(); i++) { - Point& p = *points_[i]; - if (p.x > xmax) - xmax = p.x; - if (p.x < xmin) - xmin = p.x; - if (p.y > ymax) - ymax = p.y; - if (p.y < ymin) - ymin = p.y; - } - - double dx = kAlpha * (xmax - xmin); - double dy = kAlpha * (ymax - ymin); - head_ = new Point(xmax + dx, ymin - dy); - tail_ = new Point(xmin - dx, ymin - dy); - - // Sort points along y-axis - std::sort(points_.begin(), points_.end(), cmp); - -} - -void SweepContext::InitEdges(std::vector<Point*> polyline) -{ - int num_points = polyline.size(); - for (int i = 0; i < num_points; i++) { - int j = i < num_points - 1 ? i + 1 : 0; - edge_list.push_back(new Edge(*polyline[i], *polyline[j])); - } -} - -Point* SweepContext::GetPoint(const int& index) -{ - return points_[index]; -} - -void SweepContext::AddToMap(Triangle* triangle) -{ - map_.push_back(triangle); -} - -Node& SweepContext::LocateNode(Point& point) -{ - // TODO implement search tree - return *front_->LocateNode(point.x); -} - -void SweepContext::CreateAdvancingFront(std::vector<Node*> nodes) -{ - - (void) nodes; - // Initial triangle - Triangle* triangle = new Triangle(*points_[0], *tail_, *head_); - - map_.push_back(triangle); - - af_head_ = new Node(*triangle->GetPoint(1), *triangle); - af_middle_ = new Node(*triangle->GetPoint(0), *triangle); - af_tail_ = new Node(*triangle->GetPoint(2)); - front_ = new AdvancingFront(*af_head_, *af_tail_); - - // TODO: More intuitive if head is middles next and not previous? - // so swap head and tail - af_head_->next = af_middle_; - af_middle_->next = af_tail_; - af_middle_->prev = af_head_; - af_tail_->prev = af_middle_; -} - -void SweepContext::RemoveNode(Node* node) -{ - delete node; -} - -void SweepContext::MapTriangleToNodes(Triangle& t) -{ - for (int i = 0; i < 3; i++) { - if (!t.GetNeighbor(i)) { - Node* n = front_->LocatePoint(t.PointCW(*t.GetPoint(i))); - if (n) - n->triangle = &t; - } - } -} - -void SweepContext::RemoveFromMap(Triangle* triangle) -{ - map_.remove(triangle); -} - -void SweepContext::MeshClean(Triangle& triangle) -{ - std::vector<Triangle *> triangles; - triangles.push_back(&triangle); - - while(!triangles.empty()){ - Triangle *t = triangles.back(); - triangles.pop_back(); - - if (t != NULL && !t->IsInterior()) { - t->IsInterior(true); - triangles_.push_back(t); - for (int i = 0; i < 3; i++) { - if (!t->constrained_edge[i]) - triangles.push_back(t->GetNeighbor(i)); - } - } - } -} - -SweepContext::~SweepContext() -{ - - // Clean up memory - - delete head_; - delete tail_; - delete front_; - delete af_head_; - delete af_middle_; - delete af_tail_; - - typedef std::list<Triangle*> type_list; - - for (type_list::iterator iter = map_.begin(); iter != map_.end(); ++iter) { - Triangle* ptr = *iter; - delete ptr; - } - - for (unsigned int i = 0; i < edge_list.size(); i++) { - delete edge_list[i]; - } - -} - -} |