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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<CircleColor>().constantOr(Color::black()).a > 0
&& paint.evaluated.get<CircleOpacity>().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);
}
float CircleLayer::Impl::getQueryRadius() const {
const std::array<float, 2>& translate = paint.evaluated.get<CircleTranslate>();
return paint.evaluated.get<CircleRadius>().constantOr(CircleRadius::defaultValue())
+ util::length(translate[0], translate[1]);
}
bool CircleLayer::Impl::queryIntersectsGeometry(
const GeometryCoordinates& queryGeometry,
const GeometryCollection& geometry,
const float bearing,
const float pixelsToTileUnits) const {
auto translatedQueryGeometry = FeatureIndex::translateQueryGeometry(
queryGeometry, paint.evaluated.get<CircleTranslate>(), paint.evaluated.get<CircleTranslateAnchor>(), bearing, pixelsToTileUnits);
auto circleRadius = paint.evaluated.get<CircleRadius>().constantOr(CircleRadius::defaultValue()) * pixelsToTileUnits;
return util::polygonIntersectsBufferedMultiPoint(
translatedQueryGeometry.value_or(queryGeometry), geometry, circleRadius);
}
} // namespace style
} // namespace mbgl
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