881 lines
29 KiB
JavaScript
881 lines
29 KiB
JavaScript
/**
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* @module ol/renderer/canvas/VectorTileLayer
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*/
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import CanvasBuilderGroup from '../../render/canvas/BuilderGroup.js';
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import CanvasExecutorGroup from '../../render/canvas/ExecutorGroup.js';
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import CanvasTileLayerRenderer from './TileLayer.js';
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import EventType from '../../events/EventType.js';
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import ReplayType from '../../render/canvas/BuilderType.js';
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import TileState from '../../TileState.js';
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import VectorTileRenderType from '../../layer/VectorTileRenderType.js';
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import ViewHint from '../../ViewHint.js';
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import {
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apply as applyTransform,
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create as createTransform,
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multiply,
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reset as resetTransform,
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scale,
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scale as scaleTransform,
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translate as translateTransform,
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} from '../../transform.js';
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import {
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buffer,
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containsCoordinate,
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containsExtent,
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equals,
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getIntersection,
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getTopLeft,
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intersects,
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} from '../../extent.js';
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import {clear} from '../../obj.js';
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import {
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createHitDetectionImageData,
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hitDetect,
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} from '../../render/canvas/hitdetect.js';
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import {
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getSquaredTolerance as getSquaredRenderTolerance,
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renderFeature,
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} from '../vector.js';
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import {getUid} from '../../util.js';
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import {listen, unlistenByKey} from '../../events.js';
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import {toSize} from '../../size.js';
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import {wrapX} from '../../coordinate.js';
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/**
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* @type {!Object<string, Array<import("../../render/canvas/BuilderType.js").default>>}
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*/
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const IMAGE_REPLAYS = {
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'image': [
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ReplayType.POLYGON,
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ReplayType.CIRCLE,
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ReplayType.LINE_STRING,
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ReplayType.IMAGE,
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ReplayType.TEXT,
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],
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'hybrid': [ReplayType.POLYGON, ReplayType.LINE_STRING],
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'vector': [],
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};
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/**
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* @type {!Object<string, Array<import("../../render/canvas/BuilderType.js").default>>}
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*/
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const VECTOR_REPLAYS = {
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'image': [ReplayType.DEFAULT],
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'hybrid': [ReplayType.IMAGE, ReplayType.TEXT, ReplayType.DEFAULT],
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'vector': [
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ReplayType.POLYGON,
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ReplayType.CIRCLE,
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ReplayType.LINE_STRING,
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ReplayType.IMAGE,
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ReplayType.TEXT,
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ReplayType.DEFAULT,
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],
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};
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/**
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* @classdesc
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* Canvas renderer for vector tile layers.
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* @api
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*/
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class CanvasVectorTileLayerRenderer extends CanvasTileLayerRenderer {
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/**
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* @param {import("../../layer/VectorTile.js").default} layer VectorTile layer.
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*/
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constructor(layer) {
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super(layer);
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/** @private */
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this.boundHandleStyleImageChange_ = this.handleStyleImageChange_.bind(this);
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/**
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* @private
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* @type {boolean}
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*/
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this.dirty_ = false;
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/**
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* @private
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* @type {number}
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*/
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this.renderedLayerRevision_;
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/**
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* @private
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* @type {import("../../transform").Transform}
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*/
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this.renderedPixelToCoordinateTransform_ = null;
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/**
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* @private
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* @type {number}
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*/
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this.renderedRotation_;
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/**
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* @private
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* @type {!Object<string, import("../../VectorRenderTile.js").default>}
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*/
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this.renderTileImageQueue_ = {};
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/**
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* @type {Object<string, import("../../events.js").EventsKey>}
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*/
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this.tileListenerKeys_ = {};
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/**
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* @private
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* @type {import("../../transform.js").Transform}
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*/
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this.tmpTransform_ = createTransform();
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}
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/**
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* @param {import("../../VectorRenderTile.js").default} tile Tile.
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* @param {number} pixelRatio Pixel ratio.
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* @param {import("../../proj/Projection").default} projection Projection.
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* @param {boolean} queue Queue tile for rendering.
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* @return {boolean|undefined} Tile needs to be rendered.
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*/
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prepareTile(tile, pixelRatio, projection, queue) {
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let render;
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const tileUid = getUid(tile);
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const state = tile.getState();
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if (
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((state === TileState.LOADED && tile.hifi) ||
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state === TileState.ERROR) &&
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tileUid in this.tileListenerKeys_
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) {
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unlistenByKey(this.tileListenerKeys_[tileUid]);
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delete this.tileListenerKeys_[tileUid];
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}
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if (state === TileState.LOADED || state === TileState.ERROR) {
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this.updateExecutorGroup_(tile, pixelRatio, projection);
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if (this.tileImageNeedsRender_(tile, pixelRatio, projection)) {
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render = true;
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if (queue) {
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this.renderTileImageQueue_[tileUid] = tile;
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}
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}
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}
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return render;
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}
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/**
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* @param {number} z Tile coordinate z.
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* @param {number} x Tile coordinate x.
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* @param {number} y Tile coordinate y.
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* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
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* @return {!import("../../Tile.js").default} Tile.
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*/
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getTile(z, x, y, frameState) {
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const pixelRatio = frameState.pixelRatio;
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const viewState = frameState.viewState;
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const resolution = viewState.resolution;
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const projection = viewState.projection;
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const layer = this.getLayer();
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const tile = layer.getSource().getTile(z, x, y, pixelRatio, projection);
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if (tile.getState() < TileState.LOADED) {
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tile.wantedResolution = resolution;
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const tileUid = getUid(tile);
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if (!(tileUid in this.tileListenerKeys_)) {
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const listenerKey = listen(
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tile,
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EventType.CHANGE,
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this.prepareTile.bind(this, tile, pixelRatio, projection, true)
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);
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this.tileListenerKeys_[tileUid] = listenerKey;
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}
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} else {
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const viewHints = frameState.viewHints;
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const hifi = !(
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viewHints[ViewHint.ANIMATING] || viewHints[ViewHint.INTERACTING]
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);
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if (hifi || !tile.wantedResolution) {
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tile.wantedResolution = resolution;
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}
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const render = this.prepareTile(tile, pixelRatio, projection, false);
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if (render && layer.getRenderMode() !== VectorTileRenderType.VECTOR) {
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this.renderTileImage_(tile, frameState);
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}
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}
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return super.getTile(z, x, y, frameState);
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}
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/**
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* @param {import("../../VectorRenderTile.js").default} tile Tile.
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* @return {boolean} Tile is drawable.
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*/
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isDrawableTile(tile) {
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const layer = this.getLayer();
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return (
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super.isDrawableTile(tile) &&
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(layer.getRenderMode() === VectorTileRenderType.VECTOR
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? getUid(layer) in tile.executorGroups
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: tile.hasContext(layer))
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);
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}
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/**
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* @inheritDoc
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*/
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getTileImage(tile) {
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return tile.getImage(this.getLayer());
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}
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/**
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* Determine whether render should be called.
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* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
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* @return {boolean} Layer is ready to be rendered.
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*/
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prepareFrame(frameState) {
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const layerRevision = this.getLayer().getRevision();
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if (this.renderedLayerRevision_ != layerRevision) {
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this.renderedTiles.length = 0;
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}
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this.renderedLayerRevision_ = layerRevision;
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return super.prepareFrame(frameState);
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}
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/**
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* @param {import("../../VectorRenderTile.js").default} tile Tile.
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* @param {number} pixelRatio Pixel ratio.
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* @param {import("../../proj/Projection.js").default} projection Projection.
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* @private
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*/
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updateExecutorGroup_(tile, pixelRatio, projection) {
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const layer = /** @type {import("../../layer/VectorTile.js").default} */ (this.getLayer());
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const revision = layer.getRevision();
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const renderOrder = layer.getRenderOrder() || null;
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const resolution = tile.wantedResolution;
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const builderState = tile.getReplayState(layer);
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if (
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!builderState.dirty &&
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builderState.renderedResolution === resolution &&
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builderState.renderedRevision == revision &&
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builderState.renderedRenderOrder == renderOrder &&
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builderState.renderedZ === tile.sourceZ
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) {
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return;
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}
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const source = layer.getSource();
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const declutter = layer.getDeclutter();
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const sourceTileGrid = source.getTileGrid();
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const tileGrid = source.getTileGridForProjection(projection);
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const tileExtent = tileGrid.getTileCoordExtent(tile.wrappedTileCoord);
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const sourceTiles = source.getSourceTiles(pixelRatio, projection, tile);
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const layerUid = getUid(layer);
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delete tile.hitDetectionImageData[layerUid];
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tile.executorGroups[layerUid] = [];
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if (declutter) {
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tile.declutterExecutorGroups[layerUid] = [];
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}
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for (let t = 0, tt = sourceTiles.length; t < tt; ++t) {
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const sourceTile = sourceTiles[t];
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if (sourceTile.getState() != TileState.LOADED) {
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continue;
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}
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const sourceTileCoord = sourceTile.tileCoord;
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const sourceTileExtent = sourceTileGrid.getTileCoordExtent(
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sourceTileCoord
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);
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const sharedExtent = getIntersection(tileExtent, sourceTileExtent);
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const bufferedExtent = equals(sourceTileExtent, sharedExtent)
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? null
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: buffer(
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sharedExtent,
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layer.getRenderBuffer() * resolution,
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this.tmpExtent
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);
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builderState.dirty = false;
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const builderGroup = new CanvasBuilderGroup(
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0,
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sharedExtent,
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resolution,
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pixelRatio
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);
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const declutterBuilderGroup = declutter
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? new CanvasBuilderGroup(0, sharedExtent, resolution, pixelRatio)
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: undefined;
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const squaredTolerance = getSquaredRenderTolerance(
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resolution,
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pixelRatio
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);
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/**
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* @param {import("../../Feature.js").FeatureLike} feature Feature.
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* @this {CanvasVectorTileLayerRenderer}
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*/
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const render = function (feature) {
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let styles;
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const styleFunction =
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feature.getStyleFunction() || layer.getStyleFunction();
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if (styleFunction) {
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styles = styleFunction(feature, resolution);
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}
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if (styles) {
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const dirty = this.renderFeature(
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feature,
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squaredTolerance,
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styles,
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builderGroup,
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declutterBuilderGroup
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);
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this.dirty_ = this.dirty_ || dirty;
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builderState.dirty = builderState.dirty || dirty;
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}
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};
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const features = sourceTile.getFeatures();
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if (renderOrder && renderOrder !== builderState.renderedRenderOrder) {
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features.sort(renderOrder);
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}
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for (let i = 0, ii = features.length; i < ii; ++i) {
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const feature = features[i];
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if (
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!bufferedExtent ||
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intersects(bufferedExtent, feature.getGeometry().getExtent())
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) {
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render.call(this, feature);
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}
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}
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const executorGroupInstructions = builderGroup.finish();
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// no need to clip when the render tile is covered by a single source tile
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const replayExtent =
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layer.getRenderMode() !== VectorTileRenderType.VECTOR &&
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declutter &&
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sourceTiles.length === 1
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? null
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: sharedExtent;
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const renderingReplayGroup = new CanvasExecutorGroup(
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replayExtent,
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resolution,
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pixelRatio,
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source.getOverlaps(),
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executorGroupInstructions,
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layer.getRenderBuffer()
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);
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tile.executorGroups[layerUid].push(renderingReplayGroup);
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if (declutterBuilderGroup) {
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const declutterExecutorGroup = new CanvasExecutorGroup(
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replayExtent,
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resolution,
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pixelRatio,
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source.getOverlaps(),
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declutterBuilderGroup.finish(),
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layer.getRenderBuffer()
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);
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tile.declutterExecutorGroups[layerUid].push(declutterExecutorGroup);
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}
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}
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builderState.renderedRevision = revision;
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builderState.renderedZ = tile.sourceZ;
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builderState.renderedRenderOrder = renderOrder;
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builderState.renderedResolution = resolution;
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}
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/**
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* @param {import("../../coordinate.js").Coordinate} coordinate Coordinate.
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* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
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* @param {number} hitTolerance Hit tolerance in pixels.
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* @param {import("../vector.js").FeatureCallback<T>} callback Feature callback.
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* @return {T|void} Callback result.
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* @template T
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*/
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forEachFeatureAtCoordinate(coordinate, frameState, hitTolerance, callback) {
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const resolution = frameState.viewState.resolution;
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const rotation = frameState.viewState.rotation;
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hitTolerance = hitTolerance == undefined ? 0 : hitTolerance;
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const layer = this.getLayer();
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const declutter = layer.getDeclutter();
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const source = layer.getSource();
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const tileGrid = source.getTileGridForProjection(
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frameState.viewState.projection
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);
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/** @type {!Object<string, boolean>} */
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const features = {};
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const renderedTiles = /** @type {Array<import("../../VectorRenderTile.js").default>} */ (this
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.renderedTiles);
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let found;
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let i, ii;
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for (i = 0, ii = renderedTiles.length; i < ii; ++i) {
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const tile = renderedTiles[i];
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const tileExtent = tileGrid.getTileCoordExtent(tile.wrappedTileCoord);
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const tileContainsCoordinate = containsCoordinate(tileExtent, coordinate);
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if (!declutter) {
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// When not decluttering, we only need to consider the tile that contains the given
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// coordinate, because each feature will be rendered for each tile that contains it.
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if (!tileContainsCoordinate) {
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continue;
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}
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}
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const layerUid = getUid(layer);
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const executorGroups = [tile.executorGroups[layerUid]];
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const declutterExecutorGroups = tile.declutterExecutorGroups[layerUid];
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if (declutterExecutorGroups) {
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executorGroups.push(declutterExecutorGroups);
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}
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executorGroups.forEach((executorGroups) => {
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for (let t = 0, tt = executorGroups.length; t < tt; ++t) {
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const executorGroup = executorGroups[t];
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found =
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found ||
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executorGroup.forEachFeatureAtCoordinate(
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coordinate,
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resolution,
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rotation,
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hitTolerance,
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/**
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* @param {import("../../Feature.js").FeatureLike} feature Feature.
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* @param {import("../../geom/SimpleGeometry.js").default} geometry Geometry.
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* @return {?} Callback result.
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*/
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function (feature, geometry) {
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if (tileContainsCoordinate) {
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let key = feature.getId();
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if (key === undefined) {
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key = getUid(feature);
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}
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if (!(key in features)) {
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features[key] = true;
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return callback(feature, layer, geometry);
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}
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}
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},
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executorGroups === declutterExecutorGroups
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? frameState.declutterTree.all().map((item) => item.value)
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: null
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);
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}
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});
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}
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return found;
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}
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/**
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* Asynchronous layer level hit detection.
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* @param {import("../../pixel.js").Pixel} pixel Pixel.
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* @return {Promise<Array<import("../../Feature").default>>} Promise that resolves with an array of features.
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*/
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getFeatures(pixel) {
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return new Promise(
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function (resolve, reject) {
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const layer = /** @type {import("../../layer/VectorTile.js").default} */ (this.getLayer());
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const layerUid = getUid(layer);
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const source = layer.getSource();
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const projection = this.renderedProjection;
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const projectionExtent = projection.getExtent();
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const resolution = this.renderedResolution;
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const tileGrid = source.getTileGridForProjection(projection);
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const coordinate = applyTransform(
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this.renderedPixelToCoordinateTransform_,
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pixel.slice()
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);
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const tileCoord = tileGrid.getTileCoordForCoordAndResolution(
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coordinate,
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resolution
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);
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let tile;
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for (let i = 0, ii = this.renderedTiles.length; i < ii; ++i) {
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if (
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tileCoord.toString() === this.renderedTiles[i].tileCoord.toString()
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) {
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tile = this.renderedTiles[i];
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if (tile.getState() === TileState.LOADED && tile.hifi) {
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const extent = tileGrid.getTileCoordExtent(tile.tileCoord);
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if (
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source.getWrapX() &&
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projection.canWrapX() &&
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!containsExtent(projectionExtent, extent)
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) {
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wrapX(coordinate, projection);
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}
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break;
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}
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tile = undefined;
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}
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}
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if (!tile || tile.loadingSourceTiles > 0) {
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resolve([]);
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return;
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}
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const extent = tileGrid.getTileCoordExtent(tile.wrappedTileCoord);
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const corner = getTopLeft(extent);
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const tilePixel = [
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(coordinate[0] - corner[0]) / resolution,
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(corner[1] - coordinate[1]) / resolution,
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];
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const features = tile
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.getSourceTiles()
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.reduce(function (accumulator, sourceTile) {
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return accumulator.concat(sourceTile.getFeatures());
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}, []);
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let hitDetectionImageData = tile.hitDetectionImageData[layerUid];
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if (!hitDetectionImageData && !this.animatingOrInteracting_) {
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const tileSize = toSize(
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tileGrid.getTileSize(tileGrid.getZForResolution(resolution))
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);
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const size = [tileSize[0] / 2, tileSize[1] / 2];
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const rotation = this.renderedRotation_;
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const transforms = [
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this.getRenderTransform(
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tileGrid.getTileCoordCenter(tile.wrappedTileCoord),
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resolution,
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0,
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0.5,
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size[0],
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size[1],
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0
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),
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];
|
|
hitDetectionImageData = createHitDetectionImageData(
|
|
tileSize,
|
|
transforms,
|
|
features,
|
|
layer.getStyleFunction(),
|
|
tileGrid.getTileCoordExtent(tile.wrappedTileCoord),
|
|
tile.getReplayState(layer).renderedResolution,
|
|
rotation
|
|
);
|
|
tile.hitDetectionImageData[layerUid] = hitDetectionImageData;
|
|
}
|
|
resolve(hitDetect(tilePixel, features, hitDetectionImageData));
|
|
}.bind(this)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Perform action necessary to get the layer rendered after new fonts have loaded
|
|
*/
|
|
handleFontsChanged() {
|
|
clear(this.renderTileImageQueue_);
|
|
const layer = this.getLayer();
|
|
if (layer.getVisible() && this.renderedLayerRevision_ !== undefined) {
|
|
layer.changed();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handle changes in image style state.
|
|
* @param {import("../../events/Event.js").default} event Image style change event.
|
|
* @private
|
|
*/
|
|
handleStyleImageChange_(event) {
|
|
this.renderIfReadyAndVisible();
|
|
}
|
|
|
|
/**
|
|
* Render declutter items for this layer
|
|
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
|
|
*/
|
|
renderDeclutter(frameState) {
|
|
const viewHints = frameState.viewHints;
|
|
const hifi = !(
|
|
viewHints[ViewHint.ANIMATING] || viewHints[ViewHint.INTERACTING]
|
|
);
|
|
const tiles = /** @type {Array<import("../../VectorRenderTile.js").default>} */ (this
|
|
.renderedTiles);
|
|
for (let i = 0, ii = tiles.length; i < ii; ++i) {
|
|
const tile = tiles[i];
|
|
const declutterExecutorGroups =
|
|
tile.declutterExecutorGroups[getUid(this.getLayer())];
|
|
if (declutterExecutorGroups) {
|
|
for (let j = declutterExecutorGroups.length - 1; j >= 0; --j) {
|
|
declutterExecutorGroups[j].execute(
|
|
this.context,
|
|
1,
|
|
this.getTileRenderTransform(tile, frameState),
|
|
frameState.viewState.rotation,
|
|
hifi,
|
|
undefined,
|
|
frameState.declutterTree
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
getTileRenderTransform(tile, frameState) {
|
|
const pixelRatio = frameState.pixelRatio;
|
|
const viewState = frameState.viewState;
|
|
const center = viewState.center;
|
|
const resolution = viewState.resolution;
|
|
const rotation = viewState.rotation;
|
|
const size = frameState.size;
|
|
const width = Math.round(size[0] * pixelRatio);
|
|
const height = Math.round(size[1] * pixelRatio);
|
|
|
|
const source = this.getLayer().getSource();
|
|
const tileGrid = source.getTileGridForProjection(
|
|
frameState.viewState.projection
|
|
);
|
|
const tileCoord = tile.tileCoord;
|
|
const tileExtent = tileGrid.getTileCoordExtent(tile.wrappedTileCoord);
|
|
const worldOffset =
|
|
tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent)[0] - tileExtent[0];
|
|
const transform = multiply(
|
|
scale(this.inversePixelTransform.slice(), 1 / pixelRatio, 1 / pixelRatio),
|
|
this.getRenderTransform(
|
|
center,
|
|
resolution,
|
|
rotation,
|
|
pixelRatio,
|
|
width,
|
|
height,
|
|
worldOffset
|
|
)
|
|
);
|
|
return transform;
|
|
}
|
|
|
|
/**
|
|
* Render the layer.
|
|
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
|
|
* @param {HTMLElement} target Target that may be used to render content to.
|
|
* @return {HTMLElement} The rendered element.
|
|
*/
|
|
renderFrame(frameState, target) {
|
|
const viewHints = frameState.viewHints;
|
|
const hifi = !(
|
|
viewHints[ViewHint.ANIMATING] || viewHints[ViewHint.INTERACTING]
|
|
);
|
|
this.renderQueuedTileImages_(hifi, frameState);
|
|
|
|
super.renderFrame(frameState, target);
|
|
this.renderedPixelToCoordinateTransform_ = frameState.pixelToCoordinateTransform.slice();
|
|
this.renderedRotation_ = frameState.viewState.rotation;
|
|
|
|
const layer = /** @type {import("../../layer/VectorTile.js").default} */ (this.getLayer());
|
|
const renderMode = layer.getRenderMode();
|
|
if (renderMode === VectorTileRenderType.IMAGE) {
|
|
return this.container;
|
|
}
|
|
|
|
const source = layer.getSource();
|
|
// Unqueue tiles from the image queue when we don't need any more
|
|
const usedTiles = frameState.usedTiles[getUid(source)];
|
|
for (const tileUid in this.renderTileImageQueue_) {
|
|
if (!usedTiles || !(tileUid in usedTiles)) {
|
|
delete this.renderTileImageQueue_[tileUid];
|
|
}
|
|
}
|
|
|
|
const context = this.context;
|
|
const replayTypes = VECTOR_REPLAYS[renderMode];
|
|
const viewState = frameState.viewState;
|
|
const rotation = viewState.rotation;
|
|
|
|
const tiles = this.renderedTiles;
|
|
const clips = [];
|
|
const clipZs = [];
|
|
for (let i = tiles.length - 1; i >= 0; --i) {
|
|
const tile = /** @type {import("../../VectorRenderTile.js").default} */ (tiles[
|
|
i
|
|
]);
|
|
const transform = this.getTileRenderTransform(tile, frameState);
|
|
const executorGroups = tile.executorGroups[getUid(layer)];
|
|
let clipped = false;
|
|
for (let t = 0, tt = executorGroups.length; t < tt; ++t) {
|
|
const executorGroup = executorGroups[t];
|
|
if (!executorGroup.hasExecutors(replayTypes)) {
|
|
// sourceTile has no instructions of the types we want to render
|
|
continue;
|
|
}
|
|
const currentZ = tile.tileCoord[0];
|
|
let currentClip;
|
|
if (!clipped) {
|
|
currentClip = executorGroup.getClipCoords(transform);
|
|
if (currentClip) {
|
|
context.save();
|
|
|
|
// Create a clip mask for regions in this low resolution tile that are
|
|
// already filled by a higher resolution tile
|
|
for (let j = 0, jj = clips.length; j < jj; ++j) {
|
|
const clip = clips[j];
|
|
if (currentZ < clipZs[j]) {
|
|
context.beginPath();
|
|
// counter-clockwise (outer ring) for current tile
|
|
context.moveTo(currentClip[0], currentClip[1]);
|
|
context.lineTo(currentClip[2], currentClip[3]);
|
|
context.lineTo(currentClip[4], currentClip[5]);
|
|
context.lineTo(currentClip[6], currentClip[7]);
|
|
// clockwise (inner ring) for higher resolution tile
|
|
context.moveTo(clip[6], clip[7]);
|
|
context.lineTo(clip[4], clip[5]);
|
|
context.lineTo(clip[2], clip[3]);
|
|
context.lineTo(clip[0], clip[1]);
|
|
context.clip();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
executorGroup.execute(
|
|
context,
|
|
1,
|
|
transform,
|
|
rotation,
|
|
hifi,
|
|
replayTypes
|
|
);
|
|
if (!clipped && currentClip) {
|
|
context.restore();
|
|
clips.push(currentClip);
|
|
clipZs.push(currentZ);
|
|
clipped = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return this.container;
|
|
}
|
|
|
|
/**
|
|
* @param {boolean} hifi We have time to render a high fidelity map image.
|
|
* @param {import('../../PluggableMap.js').FrameState} frameState Frame state.
|
|
*/
|
|
renderQueuedTileImages_(hifi, frameState) {
|
|
// When we don't have time to render hifi, only render tiles until we have used up
|
|
// half of the frame budget of 16 ms
|
|
for (const uid in this.renderTileImageQueue_) {
|
|
if (!hifi && Date.now() - frameState.time > 8) {
|
|
frameState.animate = true;
|
|
break;
|
|
}
|
|
const tile = this.renderTileImageQueue_[uid];
|
|
delete this.renderTileImageQueue_[uid];
|
|
this.renderTileImage_(tile, frameState);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../Feature.js").FeatureLike} feature Feature.
|
|
* @param {number} squaredTolerance Squared tolerance.
|
|
* @param {import("../../style/Style.js").default|Array<import("../../style/Style.js").default>} styles The style or array of styles.
|
|
* @param {import("../../render/canvas/BuilderGroup.js").default} builderGroup Replay group.
|
|
* @param {import("../../render/canvas/BuilderGroup.js").default=} opt_declutterBuilderGroup Builder group for decluttering.
|
|
* @return {boolean} `true` if an image is loading.
|
|
*/
|
|
renderFeature(
|
|
feature,
|
|
squaredTolerance,
|
|
styles,
|
|
builderGroup,
|
|
opt_declutterBuilderGroup
|
|
) {
|
|
if (!styles) {
|
|
return false;
|
|
}
|
|
let loading = false;
|
|
if (Array.isArray(styles)) {
|
|
for (let i = 0, ii = styles.length; i < ii; ++i) {
|
|
loading =
|
|
renderFeature(
|
|
builderGroup,
|
|
feature,
|
|
styles[i],
|
|
squaredTolerance,
|
|
this.boundHandleStyleImageChange_,
|
|
undefined,
|
|
opt_declutterBuilderGroup
|
|
) || loading;
|
|
}
|
|
} else {
|
|
loading = renderFeature(
|
|
builderGroup,
|
|
feature,
|
|
styles,
|
|
squaredTolerance,
|
|
this.boundHandleStyleImageChange_,
|
|
undefined,
|
|
opt_declutterBuilderGroup
|
|
);
|
|
}
|
|
return loading;
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../VectorRenderTile.js").default} tile Tile.
|
|
* @param {number} pixelRatio Pixel ratio.
|
|
* @param {import("../../proj/Projection.js").default} projection Projection.
|
|
* @return {boolean} A new tile image was rendered.
|
|
* @private
|
|
*/
|
|
tileImageNeedsRender_(tile, pixelRatio, projection) {
|
|
const layer = /** @type {import("../../layer/VectorTile.js").default} */ (this.getLayer());
|
|
const replayState = tile.getReplayState(layer);
|
|
const revision = layer.getRevision();
|
|
const sourceZ = tile.sourceZ;
|
|
const resolution = tile.wantedResolution;
|
|
return (
|
|
replayState.renderedTileResolution !== resolution ||
|
|
replayState.renderedTileRevision !== revision ||
|
|
replayState.renderedTileZ !== sourceZ
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../VectorRenderTile.js").default} tile Tile.
|
|
* @param {import("../../PluggableMap").FrameState} frameState Frame state.
|
|
* @private
|
|
*/
|
|
renderTileImage_(tile, frameState) {
|
|
const layer = /** @type {import("../../layer/VectorTile.js").default} */ (this.getLayer());
|
|
const replayState = tile.getReplayState(layer);
|
|
const revision = layer.getRevision();
|
|
const executorGroups = tile.executorGroups[getUid(layer)];
|
|
replayState.renderedTileRevision = revision;
|
|
replayState.renderedTileZ = tile.sourceZ;
|
|
|
|
const tileCoord = tile.wrappedTileCoord;
|
|
const z = tileCoord[0];
|
|
const source = layer.getSource();
|
|
let pixelRatio = frameState.pixelRatio;
|
|
const viewState = frameState.viewState;
|
|
const projection = viewState.projection;
|
|
const tileGrid = source.getTileGridForProjection(projection);
|
|
const tileResolution = tileGrid.getResolution(tile.tileCoord[0]);
|
|
const renderPixelRatio =
|
|
(frameState.pixelRatio / tile.wantedResolution) * tileResolution;
|
|
const resolution = tileGrid.getResolution(z);
|
|
const context = tile.getContext(layer);
|
|
|
|
// Increase tile size when overzooming for low pixel ratio, to avoid blurry tiles
|
|
pixelRatio = Math.round(
|
|
Math.max(pixelRatio, renderPixelRatio / pixelRatio)
|
|
);
|
|
const size = source.getTilePixelSize(z, pixelRatio, projection);
|
|
context.canvas.width = size[0];
|
|
context.canvas.height = size[1];
|
|
const renderScale = pixelRatio / renderPixelRatio;
|
|
if (renderScale !== 1) {
|
|
const canvasTransform = resetTransform(this.tmpTransform_);
|
|
scaleTransform(canvasTransform, renderScale, renderScale);
|
|
context.setTransform.apply(context, canvasTransform);
|
|
}
|
|
const tileExtent = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent);
|
|
const pixelScale = renderPixelRatio / resolution;
|
|
const transform = resetTransform(this.tmpTransform_);
|
|
scaleTransform(transform, pixelScale, -pixelScale);
|
|
translateTransform(transform, -tileExtent[0], -tileExtent[3]);
|
|
for (let i = 0, ii = executorGroups.length; i < ii; ++i) {
|
|
const executorGroup = executorGroups[i];
|
|
executorGroup.execute(
|
|
context,
|
|
renderScale,
|
|
transform,
|
|
0,
|
|
true,
|
|
IMAGE_REPLAYS[layer.getRenderMode()]
|
|
);
|
|
}
|
|
replayState.renderedTileResolution = tile.wantedResolution;
|
|
}
|
|
}
|
|
|
|
export default CanvasVectorTileLayerRenderer;
|