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Atlas ll2xy() optimization

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This commit is contained in:
Martin Tůma 2017-04-29 23:15:44 +02:00
parent 699e4f32d5
commit b500031713
1 changed files with 19 additions and 6 deletions
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21
src/atlas.cpp
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@ -235,16 +235,29 @@ qreal Atlas::zoomOut()
QPointF Atlas::ll2xy(const Coordinates &c) const
{
int idx = _zooms.at(_zoom).first;
static int idx = -1;
static int zoom = -1;
QPointF pp;
for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
if (_bounds.at(i).first.contains(_maps.at(i)->ll2pp(c))) {
if (zoom != _zoom) {
idx = -1;
zoom = _zoom;
}
if (idx >= 0)
pp = _maps.at(idx)->ll2pp(c);
if (idx < 0 || !_bounds.at(idx).first.contains(pp)) {
idx = _zooms.at(zoom).first;
for (int i = _zooms.at(zoom).first; i <= _zooms.at(zoom).second; i++) {
pp = _maps.at(i)->ll2pp(c);
if (_bounds.at(i).first.contains(pp)) {
idx = i;
break;
}
}
}
QPointF p = _maps.at(idx)->ll2xy(c);
QPointF p = _maps.at(idx)->pp2xy(pp);
return p + _bounds.at(idx).second.topLeft();
}