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Initial work for G-code sender and more intensive usage of Boost
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Alessandro Ranellucci
parent
43cbad8867
commit
11dd67ab34
1649 changed files with 1860 additions and 1642 deletions
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/*
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Copyright 2008 Intel Corporation
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Use, modification and distribution are subject to the Boost Software License,
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Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt).
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*/
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#ifndef BOOST_POLYGON_RECTANGLE_FORMATION_HPP
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#define BOOST_POLYGON_RECTANGLE_FORMATION_HPP
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namespace boost { namespace polygon{
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namespace rectangle_formation {
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template <class T>
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class ScanLineToRects {
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public:
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typedef T rectangle_type;
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typedef typename rectangle_traits<T>::coordinate_type coordinate_type;
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typedef rectangle_data<coordinate_type> scan_rect_type;
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private:
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typedef std::set<scan_rect_type, less_rectangle_concept<scan_rect_type, scan_rect_type> > ScanData;
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ScanData scanData_;
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bool haveCurrentRect_;
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scan_rect_type currentRect_;
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orientation_2d orient_;
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typename rectangle_traits<T>::coordinate_type currentCoordinate_;
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public:
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inline ScanLineToRects() : scanData_(), haveCurrentRect_(), currentRect_(), orient_(), currentCoordinate_() {}
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inline ScanLineToRects(orientation_2d orient, rectangle_type model) :
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scanData_(orientation_2d(orient.to_int() ? VERTICAL : HORIZONTAL)),
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haveCurrentRect_(false), currentRect_(), orient_(orient), currentCoordinate_() {
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assign(currentRect_, model);
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currentCoordinate_ = (std::numeric_limits<coordinate_type>::max)();
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}
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template <typename CT>
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inline ScanLineToRects& processEdge(CT& rectangles, const interval_data<coordinate_type>& edge);
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inline ScanLineToRects& nextMajorCoordinate(coordinate_type currentCoordinate) {
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if(haveCurrentRect_) {
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scanData_.insert(scanData_.end(), currentRect_);
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haveCurrentRect_ = false;
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}
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currentCoordinate_ = currentCoordinate;
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return *this;
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}
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};
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template <class CT, class ST, class rectangle_type, typename interval_type, typename coordinate_type> inline CT&
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processEdge_(CT& rectangles, ST& scanData, const interval_type& edge,
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bool& haveCurrentRect, rectangle_type& currentRect, coordinate_type currentCoordinate, orientation_2d orient)
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{
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typedef typename CT::value_type result_type;
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bool edgeProcessed = false;
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if(!scanData.empty()) {
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//process all rectangles in the scanData that touch the edge
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typename ST::iterator dataIter = scanData.lower_bound(rectangle_type(edge, edge));
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//decrement beginIter until its low is less than edge's low
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while((dataIter == scanData.end() || (*dataIter).get(orient).get(LOW) > edge.get(LOW)) &&
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dataIter != scanData.begin())
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{
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--dataIter;
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}
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//process each rectangle until the low end of the rectangle
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//is greater than the high end of the edge
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while(dataIter != scanData.end() &&
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(*dataIter).get(orient).get(LOW) <= edge.get(HIGH))
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{
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const rectangle_type& rect = *dataIter;
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//if the rectangle data intersects the edge at all
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if(rect.get(orient).get(HIGH) >= edge.get(LOW)) {
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if(contains(rect.get(orient), edge, true)) {
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//this is a closing edge
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//we need to write out the intersecting rectangle and
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//insert between 0 and 2 rectangles into the scanData
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//write out rectangle
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rectangle_type tmpRect = rect;
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if(rect.get(orient.get_perpendicular()).get(LOW) < currentCoordinate) {
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//set the high coordinate perpedicular to slicing orientation
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//to the current coordinate of the scan event
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tmpRect.set(orient.get_perpendicular().get_direction(HIGH),
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currentCoordinate);
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result_type result;
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assign(result, tmpRect);
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rectangles.insert(rectangles.end(), result);
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}
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//erase the rectangle from the scan data
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typename ST::iterator nextIter = dataIter;
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++nextIter;
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scanData.erase(dataIter);
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if(tmpRect.get(orient).get(LOW) < edge.get(LOW)) {
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//insert a rectangle for the overhang of the bottom
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//of the rectangle back into scan data
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rectangle_type lowRect(tmpRect);
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lowRect.set(orient.get_perpendicular(), interval_data<coordinate_type>(currentCoordinate,
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currentCoordinate));
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lowRect.set(orient.get_direction(HIGH), edge.get(LOW));
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scanData.insert(nextIter, lowRect);
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}
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if(tmpRect.get(orient).get(HIGH) > edge.get(HIGH)) {
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//insert a rectangle for the overhang of the top
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//of the rectangle back into scan data
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rectangle_type highRect(tmpRect);
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highRect.set(orient.get_perpendicular(), interval_data<coordinate_type>(currentCoordinate,
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currentCoordinate));
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highRect.set(orient.get_direction(LOW), edge.get(HIGH));
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scanData.insert(nextIter, highRect);
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}
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//we are done with this edge
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edgeProcessed = true;
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break;
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} else {
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//it must be an opening edge
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//assert that rect does not overlap the edge but only touches
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//write out rectangle
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rectangle_type tmpRect = rect;
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//set the high coordinate perpedicular to slicing orientation
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//to the current coordinate of the scan event
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if(tmpRect.get(orient.get_perpendicular().get_direction(LOW)) < currentCoordinate) {
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tmpRect.set(orient.get_perpendicular().get_direction(HIGH),
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currentCoordinate);
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result_type result;
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assign(result, tmpRect);
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rectangles.insert(rectangles.end(), result);
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}
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//erase the rectangle from the scan data
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typename ST::iterator nextIter = dataIter;
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++nextIter;
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scanData.erase(dataIter);
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dataIter = nextIter;
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if(haveCurrentRect) {
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if(currentRect.get(orient).get(HIGH) >= edge.get(LOW)){
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if(!edgeProcessed && currentRect.get(orient.get_direction(HIGH)) > edge.get(LOW)){
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rectangle_type tmpRect2(currentRect);
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tmpRect2.set(orient.get_direction(HIGH), edge.get(LOW));
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scanData.insert(nextIter, tmpRect2);
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if(currentRect.get(orient.get_direction(HIGH)) > edge.get(HIGH)) {
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currentRect.set(orient, interval_data<coordinate_type>(edge.get(HIGH), currentRect.get(orient.get_direction(HIGH))));
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} else {
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haveCurrentRect = false;
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}
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} else {
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//extend the top of current rect
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currentRect.set(orient.get_direction(HIGH),
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(std::max)(edge.get(HIGH),
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tmpRect.get(orient.get_direction(HIGH))));
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}
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} else {
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//insert current rect into the scanData
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scanData.insert(nextIter, currentRect);
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//create a new current rect
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currentRect.set(orient.get_perpendicular(), interval_data<coordinate_type>(currentCoordinate,
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currentCoordinate));
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currentRect.set(orient, interval_data<coordinate_type>((std::min)(tmpRect.get(orient).get(LOW),
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edge.get(LOW)),
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(std::max)(tmpRect.get(orient).get(HIGH),
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edge.get(HIGH))));
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}
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} else {
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haveCurrentRect = true;
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currentRect.set(orient.get_perpendicular(), interval_data<coordinate_type>(currentCoordinate,
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currentCoordinate));
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currentRect.set(orient, interval_data<coordinate_type>((std::min)(tmpRect.get(orient).get(LOW),
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edge.get(LOW)),
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(std::max)(tmpRect.get(orient).get(HIGH),
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edge.get(HIGH))));
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}
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//skip to nextIter position
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edgeProcessed = true;
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continue;
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}
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//edgeProcessed = true;
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}
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++dataIter;
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} //end while edge intersects rectangle data
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}
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if(!edgeProcessed) {
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if(haveCurrentRect) {
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if(currentRect.get(orient.get_perpendicular().get_direction(HIGH))
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== currentCoordinate &&
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currentRect.get(orient.get_direction(HIGH)) >= edge.get(LOW))
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{
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if(currentRect.get(orient.get_direction(HIGH)) > edge.get(LOW)){
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rectangle_type tmpRect(currentRect);
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tmpRect.set(orient.get_direction(HIGH), edge.get(LOW));
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scanData.insert(scanData.end(), tmpRect);
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if(currentRect.get(orient.get_direction(HIGH)) > edge.get(HIGH)) {
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currentRect.set(orient,
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interval_data<coordinate_type>(edge.get(HIGH),
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currentRect.get(orient.get_direction(HIGH))));
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return rectangles;
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} else {
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haveCurrentRect = false;
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return rectangles;
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}
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}
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//extend current rect
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currentRect.set(orient.get_direction(HIGH), edge.get(HIGH));
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return rectangles;
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}
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scanData.insert(scanData.end(), currentRect);
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haveCurrentRect = false;
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}
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rectangle_type tmpRect(currentRect);
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tmpRect.set(orient.get_perpendicular(), interval_data<coordinate_type>(currentCoordinate,
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currentCoordinate));
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tmpRect.set(orient, edge);
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scanData.insert(tmpRect);
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return rectangles;
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}
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return rectangles;
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}
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template <class T>
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template <class CT>
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inline
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ScanLineToRects<T>& ScanLineToRects<T>::processEdge(CT& rectangles, const interval_data<coordinate_type>& edge)
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{
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processEdge_(rectangles, scanData_, edge, haveCurrentRect_, currentRect_, currentCoordinate_, orient_);
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return *this;
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}
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} //namespace rectangle_formation
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template <typename T, typename T2>
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struct get_coordinate_type_for_rectangles {
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typedef typename polygon_traits<T>::coordinate_type type;
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};
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template <typename T>
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struct get_coordinate_type_for_rectangles<T, rectangle_concept> {
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typedef typename rectangle_traits<T>::coordinate_type type;
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};
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template <typename output_container, typename iterator_type, typename rectangle_concept>
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void form_rectangles(output_container& output, iterator_type begin, iterator_type end,
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orientation_2d orient, rectangle_concept ) {
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typedef typename output_container::value_type rectangle_type;
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typedef typename get_coordinate_type_for_rectangles<rectangle_type, typename geometry_concept<rectangle_type>::type>::type Unit;
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rectangle_data<Unit> model;
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Unit prevPos = (std::numeric_limits<Unit>::max)();
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rectangle_formation::ScanLineToRects<rectangle_data<Unit> > scanlineToRects(orient, model);
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for(iterator_type itr = begin;
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itr != end; ++ itr) {
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Unit pos = (*itr).first;
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if(pos != prevPos) {
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scanlineToRects.nextMajorCoordinate(pos);
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prevPos = pos;
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}
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Unit lowy = (*itr).second.first;
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iterator_type tmp_itr = itr;
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++itr;
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Unit highy = (*itr).second.first;
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scanlineToRects.processEdge(output, interval_data<Unit>(lowy, highy));
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if(abs((*itr).second.second) > 1) itr = tmp_itr; //next edge begins from this vertex
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}
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}
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}
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}
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#endif
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