Differential D2417 Diff 5853 tools/osm-simplify/BaseClipper.cpp

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tools/osm-simplify/BaseClipper.cpp

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171 171​
172 172​
173 173​
174void BaseClipper::initClipRect (const GeoDataLatLonBox &clippingBox) 174​void BaseClipper::initClipRect (const GeoDataLatLonBox &clippingBox, int pointsToAddAtEdges)
175{ 175​{
176 m_left = clippingBox.west(); 176​ m_left = clippingBox.west();
177 m_right = clippingBox.east(); 177​ m_right = clippingBox.east();
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188 m_bottomRight = QPointF(m_right, m_bottom); 188​ m_bottomRight = QPointF(m_right, m_bottom);
189 m_bottomLeft = QPointF(m_left, m_bottom); 189​ m_bottomLeft = QPointF(m_left, m_bottom);
190 190​
191​ qreal x, y;
192​ qreal deltaX = fabs(m_right - m_left) / (pointsToAddAtEdges + 1);
193​ qreal deltaY = fabs(m_bottom - m_top) / (pointsToAddAtEdges + 1);
194​
195​ m_topEdge.clear();
196​ x = m_left;
197​ for(int i = 0; i < pointsToAddAtEdges; ++i) {
198​ x += deltaX;
199​ m_topEdge << QPointF(x, m_top);
200​ }
201​
202​ m_rightEdge.clear();
203​ y = m_top;
204​ for(int i = 0; i < pointsToAddAtEdges; ++i) {
205​ y += deltaY;
206​ m_rightEdge << QPointF(m_right, y);
207​ }
208​
209​ m_bottomEdge.clear();
210​ x = m_right;
211​ for(int i = 0; i < pointsToAddAtEdges; ++i) {
212​ x -= deltaX;
213​ m_bottomEdge << QPointF(x, m_bottom);
214​ }
215​
216​ m_leftEdge.clear();
217​ y = m_bottom;
218​ for(int i = 0; i < pointsToAddAtEdges; ++i) {
219​ y -= deltaY;
220​ m_leftEdge << QPointF(m_left, y);
221​ }
222​
191 m_viewport.clear(); 223​ m_viewport.clear();
192 m_viewport << m_topLeft << m_topRight << m_bottomRight << m_bottomLeft; 224​ m_viewport << m_topLeft << m_topRight << m_bottomRight << m_bottomLeft;
193 m_viewport.isClosed(); 225​ m_viewport.isClosed();
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468 clippedPolyObjects.clear(); 500​ clippedPolyObjects.clear();
469 clippedPolyObject = QPolygonF(); 501​ clippedPolyObject = QPolygonF();
470 502​
503​ for(const auto& point : m_topEdge) {
504​ intersectionsTop << QSharedPointer<LinkedPoint>(new LinkedPoint(point));
505​ }
471 std::sort(intersectionsTop.begin(), intersectionsTop.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) { 506​ std::sort(intersectionsTop.begin(), intersectionsTop.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) {
472 return A->point().x() < B->point().x(); 507​ return A->point().x() < B->point().x();
473 }); 508​ });
474 509​
510​ for(const auto& point : m_rightEdge) {
511​ intersectionsRight << QSharedPointer<LinkedPoint>(new LinkedPoint(point));
512​ }
475 std::sort(intersectionsRight.begin(), intersectionsRight.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) { 513​ std::sort(intersectionsRight.begin(), intersectionsRight.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) {
476 return A->point().y() < B->point().y(); 514​ return A->point().y() < B->point().y();
477 }); 515​ });
478 516​
517​ for(const auto& point : m_bottomEdge) {
518​ intersectionsBottom << QSharedPointer<LinkedPoint>(new LinkedPoint(point));
519​ }
479 std::sort(intersectionsBottom.begin(), intersectionsBottom.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) { 520​ std::sort(intersectionsBottom.begin(), intersectionsBottom.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) {
480 return B->point().x() < A->point().x(); 521​ return B->point().x() < A->point().x();
481 }); 522​ });
482 523​
524​ for(const auto& point : m_leftEdge) {
525​ intersectionsLeft << QSharedPointer<LinkedPoint>(new LinkedPoint(point));
526​ }
483 std::sort(intersectionsLeft.begin(), intersectionsLeft.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) { 527​ std::sort(intersectionsLeft.begin(), intersectionsLeft.end(), [](QSharedPointer<LinkedPoint>& A, QSharedPointer<LinkedPoint>& B) {
484 return B->point().y() < A->point().y(); 528​ return B->point().y() < A->point().y();
485 }); 529​ });
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545 if(clippedPolyObject == polygon) { 589​ if(clippedPolyObject == polygon) {
546 clippedPolyObjects << polygon; 590​ clippedPolyObjects << polygon;
547 } else if (clippedPolyObject == m_viewport.intersected(m_viewport)) { 591​ } else if (clippedPolyObject == m_viewport.intersected(m_viewport)) {
548 clippedPolyObjects << m_viewport; 592​ clippedPolyObject = QPolygonF();
593​ clippedPolyObject << m_topLeft << m_topEdge
594​ << m_topRight << m_rightEdge
595​ << m_bottomRight << m_bottomEdge
596​ << m_bottomLeft << m_leftEdge;
597​ clippedPolyObjects << clippedPolyObject;
549 } 598​ }
550 } 599​ }
551 } else if(!clippedPolyObject.isEmpty()) { 600​ } else if(!clippedPolyObject.isEmpty()) {
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