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#include <mbgl/annotation/shape_annotation_impl.hpp>
#include <mbgl/annotation/annotation_manager.hpp>
#include <mbgl/annotation/annotation_tile.hpp>
#include <mbgl/util/geojsonvt/geojsonvt_convert.hpp>
#include <mbgl/util/constants.hpp>
#include <mbgl/util/string.hpp>
#include <mbgl/style/style.hpp>
#include <mbgl/style/style_bucket.hpp>
#include <mbgl/style/style_layer.hpp>
namespace mbgl {
using namespace mapbox::util::geojsonvt;
ShapeAnnotationImpl::ShapeAnnotationImpl(const AnnotationID id_,
const ShapeAnnotation& shape_,
const uint8_t maxZoom)
: id(id_),
layerID("com.mapbox.annotations.shape." + util::toString(id)),
shape(shape_),
shapeTiler(([&] {
const double baseTolerance = 3;
const uint16_t extent = 4096;
const double tolerance = baseTolerance / ((1 << maxZoom) * extent);
ProjectedGeometryContainer rings;
std::vector<LonLat> points;
for (size_t i = 0; i < shape.segments[0].size(); ++i) { // first segment for now (no holes)
const double constraintedLatitude = ::fmin(::fmax(shape.segments[0][i].latitude, -util::LATITUDE_MAX), util::LATITUDE_MAX);
points.push_back(LonLat(shape.segments[0][i].longitude, constraintedLatitude));
}
ProjectedFeatureType featureType;
if (shape.styleProperties.is<FillPaintProperties>()) {
featureType = ProjectedFeatureType::Polygon;
if (points.front().lon != points.back().lon || points.front().lat != points.back().lat) {
points.push_back(LonLat(points.front().lon, points.front().lat));
}
} else {
featureType = ProjectedFeatureType::LineString;
}
ProjectedGeometryContainer ring = Convert::project(points, tolerance);
rings.members.push_back(ring);
std::vector<ProjectedFeature> features;
features.push_back(Convert::create(Tags(), featureType, rings));
return features;
})(), maxZoom, 4, 100, 10) {}
void ShapeAnnotationImpl::updateStyle(Style& style) {
if (style.getLayer(layerID))
return;
ClassProperties paintProperties;
if (shape.styleProperties.is<LinePaintProperties>()) {
const LinePaintProperties& lineProperties = shape.styleProperties.get<LinePaintProperties>();
paintProperties.set(PropertyKey::LineOpacity, ConstantFunction<float>(lineProperties.opacity));
paintProperties.set(PropertyKey::LineWidth, ConstantFunction<float>(lineProperties.width));
paintProperties.set(PropertyKey::LineColor, ConstantFunction<Color>(lineProperties.color));
} else if (shape.styleProperties.is<FillPaintProperties>()) {
const FillPaintProperties& fillProperties = shape.styleProperties.get<FillPaintProperties>();
paintProperties.set(PropertyKey::FillOpacity, ConstantFunction<float>(fillProperties.opacity));
paintProperties.set(PropertyKey::FillColor, ConstantFunction<Color>(fillProperties.fill_color));
paintProperties.set(PropertyKey::FillOutlineColor, ConstantFunction<Color>(fillProperties.stroke_color));
}
std::map<ClassID, ClassProperties> shapePaints;
shapePaints.emplace(ClassID::Default, std::move(paintProperties));
std::unique_ptr<StyleLayer> shapeLayer = std::make_unique<StyleLayer>(layerID, std::move(shapePaints));
shapeLayer->type = (shape.styleProperties.is<LinePaintProperties>() ? StyleLayerType::Line : StyleLayerType::Fill);
util::ptr<StyleBucket> shapeBucket = std::make_shared<StyleBucket>(shapeLayer->type);
shapeBucket->name = shapeLayer->id;
shapeBucket->source = AnnotationManager::SourceID;
shapeBucket->source_layer = shapeLayer->id;
if (shape.styleProperties.is<LinePaintProperties>()) {
shapeBucket->layout.set(PropertyKey::LineJoin, ConstantFunction<JoinType>(JoinType::Round));
}
shapeLayer->bucket = shapeBucket;
style.addLayer(std::move(shapeLayer), AnnotationManager::PointLayerID);
}
void ShapeAnnotationImpl::updateTile(const TileID& tileID, AnnotationTile& tile) {
const auto& shapeTile = shapeTiler.getTile(tileID.z, tileID.x, tileID.y);
if (!shapeTile)
return;
AnnotationTileLayer& layer = *tile.layers.emplace(layerID,
std::make_unique<AnnotationTileLayer>()).first->second;
for (auto& shapeFeature : shapeTile.features) {
FeatureType featureType = FeatureType::Unknown;
if (shapeFeature.type == TileFeatureType::LineString) {
featureType = FeatureType::LineString;
} else if (shapeFeature.type == TileFeatureType::Polygon) {
featureType = FeatureType::Polygon;
}
assert(featureType != FeatureType::Unknown);
GeometryCollection renderGeometry;
for (auto& shapeGeometry : shapeFeature.geometry) {
std::vector<Coordinate> renderLine;
auto& shapeRing = shapeGeometry.get<TileRing>();
for (auto& shapePoint : shapeRing.points) {
renderLine.emplace_back(shapePoint.x, shapePoint.y);
}
renderGeometry.push_back(renderLine);
}
layer.features.emplace_back(
std::make_shared<AnnotationTileFeature>(featureType, renderGeometry));
}
}
LatLngBounds ShapeAnnotationImpl::bounds() const {
LatLngBounds result;
for (const auto& segment : shape.segments) {
for (const auto& point : segment) {
result.extend(point);
}
}
return result;
}
}
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