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#include <tools modifiers="" modifiersimplify.h=""></tools>
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#include <algorithm></algorithm>
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//*****************************************************************************************
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// TModifierSimplify implementation
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//*****************************************************************************************
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TModifierSimplify::TModifierSimplify(double step):
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step(step) { }
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void
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TModifierSimplify::modifyTrack(
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const TTrack &track,
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TTrackList &outTracks )
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{
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if (!track.handler) {
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Handler *handler = new Handler();
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track.handler = handler;
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handler->track = new TTrack(track);
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new Interpolator(*handler->track);
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}
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Handler *handler = dynamic_cast<handler*>(track.handler.getPointer());</handler*>
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if (!handler)
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return;
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outTracks.push_back(handler->track);
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TTrack &subTrack = *handler->track;
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if (!track.changed())
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return;
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// remove points
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int start = track.size() - track.pointsAdded;
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if (start < 0) start = 0;
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int subStart = subTrack.floorIndex(subTrack.indexByOriginalIndex(start));
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if (subStart < 0) subStart = 0;
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start = track.floorIndex(subTrack[subStart].originalIndex);
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if (start < 0) start = 0;
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subTrack.truncate(subStart);
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// add points
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double step2 = step*step;
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TTrackPoint p0 = subTrack.back();
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for(int i = start; i < track.size(); ++i) {
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const TTrackPoint &p1 = subTrack.pointFromOriginal(i);
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if (!subTrack.empty() && tdistance2(p1.position, p0.position) < step2) {
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if (p0.pressure < p1.pressure) p0.pressure = p1.pressure;
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if (i == track.size() - 1) p0.position = p1.position;
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p0.tilt = p1.tilt;
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p0.time = p1.time;
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p0.final = p1.final;
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subTrack.pop_back();
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subTrack.push_back(p0, false);
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} else {
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p0 = p1;
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subTrack.push_back(p0, false);
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}
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}
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// fix points
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if (track.fixedFinished())
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subTrack.fix_all();
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else
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if (track.fixedSize())
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subTrack.fix_to(
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subTrack.floorIndex( subTrack.indexByOriginalIndex(track.fixedSize()-1) ));
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track.resetChanges();
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}
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