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#include <mbgl/style/layers/circle_layer_impl.hpp>
#include <mbgl/renderer/circle_bucket.hpp>
#include <mbgl/geometry/feature_index.hpp>
#include <mbgl/util/math.hpp>
#include <mbgl/util/intersection_tests.hpp>
namespace mbgl {
namespace style {
void CircleLayer::Impl::cascade(const CascadeParameters& parameters) {
paint.cascade(parameters);
}
bool CircleLayer::Impl::evaluate(const PropertyEvaluationParameters& parameters) {
paint.evaluate(parameters);
passes = ((paint.evaluated.get<CircleRadius>().constantOr(1) > 0 ||
paint.evaluated.get<CircleStrokeWidth>().constantOr(1) > 0)
&& (paint.evaluated.get<CircleColor>().constantOr(Color::black()).a > 0 ||
paint.evaluated.get<CircleStrokeColor>().constantOr(Color::black()).a > 0)
&& (paint.evaluated.get<CircleOpacity>().constantOr(1) > 0 ||
paint.evaluated.get<CircleStrokeOpacity>().constantOr(1) > 0))
? RenderPass::Translucent : RenderPass::None;
return paint.hasTransition();
}
std::unique_ptr<Bucket> CircleLayer::Impl::createBucket(const BucketParameters& parameters, const std::vector<const Layer*>& layers) const {
return std::make_unique<CircleBucket>(parameters, layers);
}
bool CircleLayer::Impl::queryIntersectsFeature(
const GeometryCoordinates& queryGeometry,
const GeometryTileFeature& feature,
const float zoom,
const float bearing,
const float pixelsToTileUnits) const {
// Translate query geometry
auto translatedQueryGeometry = FeatureIndex::translateQueryGeometry(
queryGeometry, paint.evaluated.get<CircleTranslate>(), paint.evaluated.get<CircleTranslateAnchor>(), bearing, pixelsToTileUnits);
// Evaluate function
auto circleRadius = paint.evaluated.get<CircleRadius>()
.evaluate(feature, zoom, CircleRadius::defaultValue())
* pixelsToTileUnits;
// Test intersection
return util::polygonIntersectsBufferedMultiPoint(translatedQueryGeometry.value_or(queryGeometry), feature.getGeometries(), circleRadius);
}
} // namespace style
} // namespace mbgl
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