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347 lines
17 KiB
JavaScript
347 lines
17 KiB
JavaScript
/**
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* @module ol/renderer/vector
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*/
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import ImageState from '../ImageState.js';
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import { getUid } from '../util.js';
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/**
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* Feature callback. The callback will be called with three arguments. The first
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* argument is one {@link module:ol/Feature~Feature feature} or {@link module:ol/render/Feature~RenderFeature render feature}
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* at the pixel, the second is the {@link module:ol/layer/Layer~Layer layer} of the feature and will be null for
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* unmanaged layers. The third is the {@link module:ol/geom/SimpleGeometry~SimpleGeometry} of the feature. For features
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* with a GeometryCollection geometry, it will be the first detected geometry from the collection.
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* @template T
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* @typedef {function(import("../Feature.js").FeatureLike, import("../layer/Layer.js").default<import("../source/Source").default>, import("../geom/SimpleGeometry.js").default): T} FeatureCallback
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*/
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/**
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* Tolerance for geometry simplification in device pixels.
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* @type {number}
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*/
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var SIMPLIFY_TOLERANCE = 0.5;
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/**
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* @const
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* @type {Object<import("../geom/Geometry.js").Type,
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* function(import("../render/canvas/BuilderGroup.js").default, import("../geom/Geometry.js").default,
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* import("../style/Style.js").default, Object): void>}
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*/
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var GEOMETRY_RENDERERS = {
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'Point': renderPointGeometry,
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'LineString': renderLineStringGeometry,
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'Polygon': renderPolygonGeometry,
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'MultiPoint': renderMultiPointGeometry,
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'MultiLineString': renderMultiLineStringGeometry,
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'MultiPolygon': renderMultiPolygonGeometry,
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'GeometryCollection': renderGeometryCollectionGeometry,
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'Circle': renderCircleGeometry,
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};
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/**
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* @param {import("../Feature.js").FeatureLike} feature1 Feature 1.
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* @param {import("../Feature.js").FeatureLike} feature2 Feature 2.
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* @return {number} Order.
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*/
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export function defaultOrder(feature1, feature2) {
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return parseInt(getUid(feature1), 10) - parseInt(getUid(feature2), 10);
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}
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/**
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* @param {number} resolution Resolution.
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* @param {number} pixelRatio Pixel ratio.
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* @return {number} Squared pixel tolerance.
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*/
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export function getSquaredTolerance(resolution, pixelRatio) {
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var tolerance = getTolerance(resolution, pixelRatio);
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return tolerance * tolerance;
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}
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/**
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* @param {number} resolution Resolution.
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* @param {number} pixelRatio Pixel ratio.
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* @return {number} Pixel tolerance.
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*/
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export function getTolerance(resolution, pixelRatio) {
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return (SIMPLIFY_TOLERANCE * resolution) / pixelRatio;
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Builder group.
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* @param {import("../geom/Circle.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").default} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderCircleGeometry(builderGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var fillStyle = style.getFill();
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var strokeStyle = style.getStroke();
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if (fillStyle || strokeStyle) {
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var circleReplay = builderGroup.getBuilder(style.getZIndex(), 'Circle');
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circleReplay.setFillStrokeStyle(fillStyle, strokeStyle);
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circleReplay.drawCircle(geometry, feature);
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}
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var textStyle = style.getText();
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if (textStyle && textStyle.getText()) {
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var textReplay = (opt_declutterBuilderGroup || builderGroup).getBuilder(style.getZIndex(), 'Text');
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry, feature);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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* @param {import("../style/Style.js").default} style Style.
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* @param {number} squaredTolerance Squared tolerance.
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* @param {function(import("../events/Event.js").default): void} listener Listener function.
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* @param {import("../proj.js").TransformFunction} [opt_transform] Transform from user to view projection.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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* @return {boolean} `true` if style is loading.
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*/
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export function renderFeature(replayGroup, feature, style, squaredTolerance, listener, opt_transform, opt_declutterBuilderGroup) {
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var loading = false;
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var imageStyle = style.getImage();
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if (imageStyle) {
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var imageState = imageStyle.getImageState();
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if (imageState == ImageState.LOADED || imageState == ImageState.ERROR) {
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imageStyle.unlistenImageChange(listener);
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}
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else {
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if (imageState == ImageState.IDLE) {
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imageStyle.load();
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}
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imageStyle.listenImageChange(listener);
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loading = true;
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}
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}
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renderFeatureInternal(replayGroup, feature, style, squaredTolerance, opt_transform, opt_declutterBuilderGroup);
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return loading;
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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* @param {import("../style/Style.js").default} style Style.
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* @param {number} squaredTolerance Squared tolerance.
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* @param {import("../proj.js").TransformFunction} [opt_transform] Optional transform function.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderFeatureInternal(replayGroup, feature, style, squaredTolerance, opt_transform, opt_declutterBuilderGroup) {
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var geometry = style.getGeometryFunction()(feature);
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if (!geometry) {
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return;
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}
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var simplifiedGeometry = geometry.simplifyTransformed(squaredTolerance, opt_transform);
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var renderer = style.getRenderer();
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if (renderer) {
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renderGeometry(replayGroup, simplifiedGeometry, style, feature);
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}
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else {
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var geometryRenderer = GEOMETRY_RENDERERS[simplifiedGeometry.getType()];
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geometryRenderer(replayGroup, simplifiedGeometry, style, feature, opt_declutterBuilderGroup);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
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* @param {import("../geom/Geometry.js").default|import("../render/Feature.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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*/
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function renderGeometry(replayGroup, geometry, style, feature) {
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if (geometry.getType() == 'GeometryCollection') {
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var geometries =
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/** @type {import("../geom/GeometryCollection.js").default} */ (geometry).getGeometries();
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for (var i = 0, ii = geometries.length; i < ii; ++i) {
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renderGeometry(replayGroup, geometries[i], style, feature);
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}
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return;
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}
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var replay = replayGroup.getBuilder(style.getZIndex(), 'Default');
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replay.drawCustom(
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/** @type {import("../geom/SimpleGeometry.js").default} */ (geometry), feature, style.getRenderer(), style.getHitDetectionRenderer());
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} replayGroup Replay group.
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* @param {import("../geom/GeometryCollection.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").default} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderGeometryCollectionGeometry(replayGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var geometries = geometry.getGeometriesArray();
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var i, ii;
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for (i = 0, ii = geometries.length; i < ii; ++i) {
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var geometryRenderer = GEOMETRY_RENDERERS[geometries[i].getType()];
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geometryRenderer(replayGroup, geometries[i], style, feature, opt_declutterBuilderGroup);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
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* @param {import("../geom/LineString.js").default|import("../render/Feature.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderLineStringGeometry(builderGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var strokeStyle = style.getStroke();
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if (strokeStyle) {
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var lineStringReplay = builderGroup.getBuilder(style.getZIndex(), 'LineString');
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lineStringReplay.setFillStrokeStyle(null, strokeStyle);
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lineStringReplay.drawLineString(geometry, feature);
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}
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var textStyle = style.getText();
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if (textStyle && textStyle.getText()) {
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var textReplay = (opt_declutterBuilderGroup || builderGroup).getBuilder(style.getZIndex(), 'Text');
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry, feature);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
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* @param {import("../geom/MultiLineString.js").default|import("../render/Feature.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderMultiLineStringGeometry(builderGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var strokeStyle = style.getStroke();
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if (strokeStyle) {
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var lineStringReplay = builderGroup.getBuilder(style.getZIndex(), 'LineString');
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lineStringReplay.setFillStrokeStyle(null, strokeStyle);
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lineStringReplay.drawMultiLineString(geometry, feature);
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}
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var textStyle = style.getText();
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if (textStyle && textStyle.getText()) {
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var textReplay = (opt_declutterBuilderGroup || builderGroup).getBuilder(style.getZIndex(), 'Text');
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry, feature);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
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* @param {import("../geom/MultiPolygon.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").default} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderMultiPolygonGeometry(builderGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var fillStyle = style.getFill();
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var strokeStyle = style.getStroke();
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if (strokeStyle || fillStyle) {
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var polygonReplay = builderGroup.getBuilder(style.getZIndex(), 'Polygon');
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polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);
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polygonReplay.drawMultiPolygon(geometry, feature);
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}
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var textStyle = style.getText();
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if (textStyle && textStyle.getText()) {
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var textReplay = (opt_declutterBuilderGroup || builderGroup).getBuilder(style.getZIndex(), 'Text');
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry, feature);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
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* @param {import("../geom/Point.js").default|import("../render/Feature.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderPointGeometry(builderGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var imageStyle = style.getImage();
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var textStyle = style.getText();
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/** @type {import("../render/canvas.js").DeclutterImageWithText} */
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var declutterImageWithText;
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if (imageStyle) {
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if (imageStyle.getImageState() != ImageState.LOADED) {
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return;
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}
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var imageBuilderGroup = builderGroup;
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if (opt_declutterBuilderGroup) {
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var declutterMode = imageStyle.getDeclutterMode();
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if (declutterMode !== 'none') {
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imageBuilderGroup = opt_declutterBuilderGroup;
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if (declutterMode === 'obstacle') {
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// draw in non-declutter group:
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var imageReplay_1 = builderGroup.getBuilder(style.getZIndex(), 'Image');
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imageReplay_1.setImageStyle(imageStyle, declutterImageWithText);
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imageReplay_1.drawPoint(geometry, feature);
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}
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else if (textStyle && textStyle.getText()) {
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declutterImageWithText = {};
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}
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}
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}
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var imageReplay = imageBuilderGroup.getBuilder(style.getZIndex(), 'Image');
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imageReplay.setImageStyle(imageStyle, declutterImageWithText);
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imageReplay.drawPoint(geometry, feature);
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}
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if (textStyle && textStyle.getText()) {
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var textBuilderGroup = builderGroup;
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if (opt_declutterBuilderGroup) {
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textBuilderGroup = opt_declutterBuilderGroup;
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}
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var textReplay = textBuilderGroup.getBuilder(style.getZIndex(), 'Text');
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textReplay.setTextStyle(textStyle, declutterImageWithText);
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textReplay.drawText(geometry, feature);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
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* @param {import("../geom/MultiPoint.js").default|import("../render/Feature.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderMultiPointGeometry(builderGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var imageStyle = style.getImage();
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var textStyle = style.getText();
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/** @type {import("../render/canvas.js").DeclutterImageWithText} */
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var declutterImageWithText;
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if (imageStyle) {
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if (imageStyle.getImageState() != ImageState.LOADED) {
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return;
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}
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var imageBuilderGroup = builderGroup;
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if (opt_declutterBuilderGroup) {
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var declutterMode = imageStyle.getDeclutterMode();
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if (declutterMode !== 'none') {
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imageBuilderGroup = opt_declutterBuilderGroup;
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if (declutterMode === 'obstacle') {
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// draw in non-declutter group:
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var imageReplay_2 = builderGroup.getBuilder(style.getZIndex(), 'Image');
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imageReplay_2.setImageStyle(imageStyle, declutterImageWithText);
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imageReplay_2.drawMultiPoint(geometry, feature);
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}
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else if (textStyle && textStyle.getText()) {
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declutterImageWithText = {};
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}
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}
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}
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var imageReplay = imageBuilderGroup.getBuilder(style.getZIndex(), 'Image');
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imageReplay.setImageStyle(imageStyle, declutterImageWithText);
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imageReplay.drawMultiPoint(geometry, feature);
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}
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if (textStyle && textStyle.getText()) {
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var textBuilderGroup = builderGroup;
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if (opt_declutterBuilderGroup) {
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textBuilderGroup = opt_declutterBuilderGroup;
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}
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var textReplay = textBuilderGroup.getBuilder(style.getZIndex(), 'Text');
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textReplay.setTextStyle(textStyle, declutterImageWithText);
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textReplay.drawText(geometry, feature);
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}
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}
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/**
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* @param {import("../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
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* @param {import("../geom/Polygon.js").default|import("../render/Feature.js").default} geometry Geometry.
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* @param {import("../style/Style.js").default} style Style.
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* @param {import("../Feature.js").FeatureLike} feature Feature.
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* @param {import("../render/canvas/BuilderGroup.js").default} [opt_declutterBuilderGroup] Builder for decluttering.
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*/
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function renderPolygonGeometry(builderGroup, geometry, style, feature, opt_declutterBuilderGroup) {
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var fillStyle = style.getFill();
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var strokeStyle = style.getStroke();
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if (fillStyle || strokeStyle) {
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var polygonReplay = builderGroup.getBuilder(style.getZIndex(), 'Polygon');
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polygonReplay.setFillStrokeStyle(fillStyle, strokeStyle);
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polygonReplay.drawPolygon(geometry, feature);
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}
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var textStyle = style.getText();
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if (textStyle && textStyle.getText()) {
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var textReplay = (opt_declutterBuilderGroup || builderGroup).getBuilder(style.getZIndex(), 'Text');
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textReplay.setTextStyle(textStyle);
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textReplay.drawText(geometry, feature);
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}
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}
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//# sourceMappingURL=vector.js.map
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