1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
#include <mbgl/style/layers/circle_layer_impl.hpp>
#include <mbgl/style/bucket_parameters.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>() > 0 && paint.evaluated.get<CircleColor>().a > 0 && paint.evaluated.get<CircleOpacity>() > 0)
? RenderPass::Translucent : RenderPass::None;
return paint.hasTransition();
}
std::unique_ptr<Bucket> CircleLayer::Impl::createBucket(BucketParameters& parameters, const GeometryTileLayer& layer) const {
auto bucket = std::make_unique<CircleBucket>(parameters.mode);
auto& name = bucketName();
parameters.eachFilteredFeature(filter, layer, [&] (const auto& feature, std::size_t index, const std::string& layerName) {
auto geometries = feature.getGeometries();
bucket->addGeometry(geometries);
parameters.featureIndex.insert(geometries, index, layerName, name);
});
return std::move(bucket);
}
float CircleLayer::Impl::getQueryRadius() const {
const std::array<float, 2>& translate = paint.evaluated.get<CircleTranslate>();
return paint.evaluated.get<CircleRadius>() + 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>() * pixelsToTileUnits;
return util::polygonIntersectsBufferedMultiPoint(
translatedQueryGeometry.value_or(queryGeometry), geometry, circleRadius);
}
} // namespace style
} // namespace mbgl
|
