diff options
Diffstat (limited to 'src/mbgl/programs/symbol_program.hpp')
| -rw-r--r-- | src/mbgl/programs/symbol_program.hpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/mbgl/programs/symbol_program.hpp b/src/mbgl/programs/symbol_program.hpp index 48928988e6..f466a076ef 100644 --- a/src/mbgl/programs/symbol_program.hpp +++ b/src/mbgl/programs/symbol_program.hpp @@ -121,7 +121,7 @@ Range<float> getCoveringStops(Stops s, float lowerZoom, float upperZoom) { // lower_bound yields first element >= lowerZoom, but we want the *last* // element <= lowerZoom, so if we found a stop > lowerZoom, back up by one. - if (minIt != s.stops.begin() && minIt->first > lowerZoom) { + if (minIt != s.stops.begin() && minIt != s.stops.end() && minIt->first > lowerZoom) { minIt--; } return Range<float> { @@ -144,9 +144,10 @@ public: : layoutSize(function_.evaluate(tileZoom + 1)) { function_.stops.match( [&] (const style::ExponentialStops<float>& stops) { + const auto& zoomLevels = getCoveringStops(stops, tileZoom, tileZoom + 1); coveringRanges = std::make_tuple( - getCoveringStops(stops, tileZoom, tileZoom + 1), - Range<float> { function_.evaluate(tileZoom), function_.evaluate(tileZoom + 1) } + zoomLevels, + Range<float> { function_.evaluate(zoomLevels.min), function_.evaluate(zoomLevels.max) } ); functionInterpolationBase = stops.base; }, |