859 lines
27 KiB
JavaScript
859 lines
27 KiB
JavaScript
/**
|
|
* @module ol/renderer/canvas/VectorTileLayer
|
|
*/
|
|
import CanvasBuilderGroup from '../../render/canvas/BuilderGroup.js';
|
|
import CanvasExecutorGroup from '../../render/canvas/ExecutorGroup.js';
|
|
import CanvasTileLayerRenderer from './TileLayer.js';
|
|
import TileState from '../../TileState.js';
|
|
import ViewHint from '../../ViewHint.js';
|
|
import {
|
|
HIT_DETECT_RESOLUTION,
|
|
createHitDetectionImageData,
|
|
hitDetect,
|
|
} from '../../render/canvas/hitdetect.js';
|
|
import {
|
|
apply as applyTransform,
|
|
create as createTransform,
|
|
multiply,
|
|
reset as resetTransform,
|
|
scale,
|
|
scale as scaleTransform,
|
|
translate as translateTransform,
|
|
} from '../../transform.js';
|
|
import {
|
|
boundingExtent,
|
|
buffer,
|
|
containsExtent,
|
|
equals,
|
|
getIntersection,
|
|
getTopLeft,
|
|
intersects,
|
|
} from '../../extent.js';
|
|
import {
|
|
getSquaredTolerance as getSquaredRenderTolerance,
|
|
renderFeature,
|
|
} from '../vector.js';
|
|
import {getUid} from '../../util.js';
|
|
import {toSize} from '../../size.js';
|
|
import {wrapX} from '../../coordinate.js';
|
|
|
|
/**
|
|
* @type {!Object<string, Array<import("../../render/canvas.js").BuilderType>>}
|
|
*/
|
|
const IMAGE_REPLAYS = {
|
|
'image': ['Polygon', 'Circle', 'LineString', 'Image', 'Text'],
|
|
'hybrid': ['Polygon', 'LineString'],
|
|
'vector': [],
|
|
};
|
|
|
|
/**
|
|
* @type {!Object<string, Array<import("../../render/canvas.js").BuilderType>>}
|
|
*/
|
|
const VECTOR_REPLAYS = {
|
|
'hybrid': ['Image', 'Text', 'Default'],
|
|
'vector': ['Polygon', 'Circle', 'LineString', 'Image', 'Text', 'Default'],
|
|
};
|
|
|
|
/**
|
|
* @classdesc
|
|
* Canvas renderer for vector tile layers.
|
|
* @api
|
|
* @extends {CanvasTileLayerRenderer<import("../../layer/VectorTile.js").default>}
|
|
*/
|
|
class CanvasVectorTileLayerRenderer extends CanvasTileLayerRenderer {
|
|
/**
|
|
* @param {import("../../layer/VectorTile.js").default} layer VectorTile layer.
|
|
*/
|
|
constructor(layer) {
|
|
super(layer);
|
|
|
|
/** @private */
|
|
this.boundHandleStyleImageChange_ = this.handleStyleImageChange_.bind(this);
|
|
|
|
/**
|
|
* @private
|
|
* @type {number}
|
|
*/
|
|
this.renderedLayerRevision_;
|
|
|
|
/**
|
|
* @private
|
|
* @type {import("../../transform").Transform}
|
|
*/
|
|
this.renderedPixelToCoordinateTransform_ = null;
|
|
|
|
/**
|
|
* @private
|
|
* @type {number}
|
|
*/
|
|
this.renderedRotation_;
|
|
|
|
/**
|
|
* @private
|
|
* @type {import("../../transform.js").Transform}
|
|
*/
|
|
this.tmpTransform_ = createTransform();
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../VectorRenderTile.js").default} tile Tile.
|
|
* @param {number} pixelRatio Pixel ratio.
|
|
* @param {import("../../proj/Projection").default} projection Projection.
|
|
* @return {boolean|undefined} Tile needs to be rendered.
|
|
*/
|
|
prepareTile(tile, pixelRatio, projection) {
|
|
let render;
|
|
const state = tile.getState();
|
|
if (state === TileState.LOADED || state === TileState.ERROR) {
|
|
this.updateExecutorGroup_(tile, pixelRatio, projection);
|
|
if (this.tileImageNeedsRender_(tile)) {
|
|
render = true;
|
|
}
|
|
}
|
|
return render;
|
|
}
|
|
|
|
/**
|
|
* @param {number} z Tile coordinate z.
|
|
* @param {number} x Tile coordinate x.
|
|
* @param {number} y Tile coordinate y.
|
|
* @param {import("../../Map.js").FrameState} frameState Frame state.
|
|
* @return {!import("../../Tile.js").default} Tile.
|
|
*/
|
|
getTile(z, x, y, frameState) {
|
|
const pixelRatio = frameState.pixelRatio;
|
|
const viewState = frameState.viewState;
|
|
const resolution = viewState.resolution;
|
|
const projection = viewState.projection;
|
|
const layer = this.getLayer();
|
|
const tile = layer.getSource().getTile(z, x, y, pixelRatio, projection);
|
|
const viewHints = frameState.viewHints;
|
|
const hifi = !(
|
|
viewHints[ViewHint.ANIMATING] || viewHints[ViewHint.INTERACTING]
|
|
);
|
|
if (hifi || !tile.wantedResolution) {
|
|
tile.wantedResolution = resolution;
|
|
}
|
|
const render = this.prepareTile(tile, pixelRatio, projection);
|
|
if (
|
|
render &&
|
|
(hifi || Date.now() - frameState.time < 8) &&
|
|
layer.getRenderMode() !== 'vector'
|
|
) {
|
|
this.renderTileImage_(tile, frameState);
|
|
}
|
|
return super.getTile(z, x, y, frameState);
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../VectorRenderTile.js").default} tile Tile.
|
|
* @return {boolean} Tile is drawable.
|
|
*/
|
|
isDrawableTile(tile) {
|
|
const layer = this.getLayer();
|
|
return (
|
|
super.isDrawableTile(tile) &&
|
|
(layer.getRenderMode() === 'vector'
|
|
? getUid(layer) in tile.executorGroups
|
|
: tile.hasContext(layer))
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
getTileImage(tile) {
|
|
return tile.getImage(this.getLayer());
|
|
}
|
|
|
|
/**
|
|
* Determine whether render should be called.
|
|
* @param {import("../../Map.js").FrameState} frameState Frame state.
|
|
* @return {boolean} Layer is ready to be rendered.
|
|
*/
|
|
prepareFrame(frameState) {
|
|
const layerRevision = this.getLayer().getRevision();
|
|
if (this.renderedLayerRevision_ !== layerRevision) {
|
|
this.renderedLayerRevision_ = layerRevision;
|
|
this.renderedTiles.length = 0;
|
|
}
|
|
return super.prepareFrame(frameState);
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../VectorRenderTile.js").default} tile Tile.
|
|
* @param {number} pixelRatio Pixel ratio.
|
|
* @param {import("../../proj/Projection.js").default} projection Projection.
|
|
* @private
|
|
*/
|
|
updateExecutorGroup_(tile, pixelRatio, projection) {
|
|
const layer = /** @type {import("../../layer/VectorTile.js").default} */ (
|
|
this.getLayer()
|
|
);
|
|
const revision = layer.getRevision();
|
|
const renderOrder = layer.getRenderOrder() || null;
|
|
|
|
const resolution = tile.wantedResolution;
|
|
const builderState = tile.getReplayState(layer);
|
|
if (
|
|
!builderState.dirty &&
|
|
builderState.renderedResolution === resolution &&
|
|
builderState.renderedRevision == revision &&
|
|
builderState.renderedRenderOrder == renderOrder
|
|
) {
|
|
return;
|
|
}
|
|
|
|
const source = layer.getSource();
|
|
const declutter = layer.getDeclutter();
|
|
const sourceTileGrid = source.getTileGrid();
|
|
const tileGrid = source.getTileGridForProjection(projection);
|
|
const tileExtent = tileGrid.getTileCoordExtent(tile.wrappedTileCoord);
|
|
|
|
const sourceTiles = source.getSourceTiles(pixelRatio, projection, tile);
|
|
const layerUid = getUid(layer);
|
|
delete tile.hitDetectionImageData[layerUid];
|
|
tile.executorGroups[layerUid] = [];
|
|
if (declutter) {
|
|
tile.declutterExecutorGroups[layerUid] = [];
|
|
}
|
|
builderState.dirty = false;
|
|
for (let t = 0, tt = sourceTiles.length; t < tt; ++t) {
|
|
const sourceTile = sourceTiles[t];
|
|
if (sourceTile.getState() != TileState.LOADED) {
|
|
continue;
|
|
}
|
|
const sourceTileCoord = sourceTile.tileCoord;
|
|
const sourceTileExtent =
|
|
sourceTileGrid.getTileCoordExtent(sourceTileCoord);
|
|
const sharedExtent = getIntersection(tileExtent, sourceTileExtent);
|
|
const builderExtent = buffer(
|
|
sharedExtent,
|
|
layer.getRenderBuffer() * resolution,
|
|
this.tmpExtent
|
|
);
|
|
const bufferedExtent = equals(sourceTileExtent, sharedExtent)
|
|
? null
|
|
: builderExtent;
|
|
const builderGroup = new CanvasBuilderGroup(
|
|
0,
|
|
builderExtent,
|
|
resolution,
|
|
pixelRatio
|
|
);
|
|
const declutterBuilderGroup = declutter
|
|
? new CanvasBuilderGroup(0, sharedExtent, resolution, pixelRatio)
|
|
: undefined;
|
|
const squaredTolerance = getSquaredRenderTolerance(
|
|
resolution,
|
|
pixelRatio
|
|
);
|
|
|
|
/**
|
|
* @param {import("../../Feature.js").FeatureLike} feature Feature.
|
|
* @this {CanvasVectorTileLayerRenderer}
|
|
*/
|
|
const render = function (feature) {
|
|
let styles;
|
|
const styleFunction =
|
|
feature.getStyleFunction() || layer.getStyleFunction();
|
|
if (styleFunction) {
|
|
styles = styleFunction(feature, resolution);
|
|
}
|
|
if (styles) {
|
|
const dirty = this.renderFeature(
|
|
feature,
|
|
squaredTolerance,
|
|
styles,
|
|
builderGroup,
|
|
declutterBuilderGroup
|
|
);
|
|
builderState.dirty = builderState.dirty || dirty;
|
|
}
|
|
};
|
|
|
|
const features = sourceTile.getFeatures();
|
|
if (renderOrder && renderOrder !== builderState.renderedRenderOrder) {
|
|
features.sort(renderOrder);
|
|
}
|
|
for (let i = 0, ii = features.length; i < ii; ++i) {
|
|
const feature = features[i];
|
|
if (
|
|
!bufferedExtent ||
|
|
intersects(bufferedExtent, feature.getGeometry().getExtent())
|
|
) {
|
|
render.call(this, feature);
|
|
}
|
|
}
|
|
const executorGroupInstructions = builderGroup.finish();
|
|
// no need to clip when the render tile is covered by a single source tile
|
|
const replayExtent =
|
|
layer.getRenderMode() !== 'vector' &&
|
|
declutter &&
|
|
sourceTiles.length === 1
|
|
? null
|
|
: sharedExtent;
|
|
const renderingReplayGroup = new CanvasExecutorGroup(
|
|
replayExtent,
|
|
resolution,
|
|
pixelRatio,
|
|
source.getOverlaps(),
|
|
executorGroupInstructions,
|
|
layer.getRenderBuffer()
|
|
);
|
|
tile.executorGroups[layerUid].push(renderingReplayGroup);
|
|
if (declutterBuilderGroup) {
|
|
const declutterExecutorGroup = new CanvasExecutorGroup(
|
|
null,
|
|
resolution,
|
|
pixelRatio,
|
|
source.getOverlaps(),
|
|
declutterBuilderGroup.finish(),
|
|
layer.getRenderBuffer()
|
|
);
|
|
tile.declutterExecutorGroups[layerUid].push(declutterExecutorGroup);
|
|
}
|
|
}
|
|
builderState.renderedRevision = revision;
|
|
builderState.renderedRenderOrder = renderOrder;
|
|
builderState.renderedResolution = resolution;
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../coordinate.js").Coordinate} coordinate Coordinate.
|
|
* @param {import("../../Map.js").FrameState} frameState Frame state.
|
|
* @param {number} hitTolerance Hit tolerance in pixels.
|
|
* @param {import("../vector.js").FeatureCallback<T>} callback Feature callback.
|
|
* @param {Array<import("../Map.js").HitMatch<T>>} matches The hit detected matches with tolerance.
|
|
* @return {T|undefined} Callback result.
|
|
* @template T
|
|
*/
|
|
forEachFeatureAtCoordinate(
|
|
coordinate,
|
|
frameState,
|
|
hitTolerance,
|
|
callback,
|
|
matches
|
|
) {
|
|
const resolution = frameState.viewState.resolution;
|
|
const rotation = frameState.viewState.rotation;
|
|
hitTolerance = hitTolerance == undefined ? 0 : hitTolerance;
|
|
const layer = this.getLayer();
|
|
const source = layer.getSource();
|
|
const tileGrid = source.getTileGridForProjection(
|
|
frameState.viewState.projection
|
|
);
|
|
|
|
const hitExtent = boundingExtent([coordinate]);
|
|
buffer(hitExtent, resolution * hitTolerance, hitExtent);
|
|
|
|
/** @type {!Object<string, import("../Map.js").HitMatch<T>|true>} */
|
|
const features = {};
|
|
|
|
/**
|
|
* @param {import("../../Feature.js").FeatureLike} feature Feature.
|
|
* @param {import("../../geom/SimpleGeometry.js").default} geometry Geometry.
|
|
* @param {number} distanceSq The squared distance to the click position.
|
|
* @return {T|undefined} Callback result.
|
|
*/
|
|
const featureCallback = function (feature, geometry, distanceSq) {
|
|
let key = feature.getId();
|
|
if (key === undefined) {
|
|
key = getUid(feature);
|
|
}
|
|
const match = features[key];
|
|
if (!match) {
|
|
if (distanceSq === 0) {
|
|
features[key] = true;
|
|
return callback(feature, layer, geometry);
|
|
}
|
|
matches.push(
|
|
(features[key] = {
|
|
feature: feature,
|
|
layer: layer,
|
|
geometry: geometry,
|
|
distanceSq: distanceSq,
|
|
callback: callback,
|
|
})
|
|
);
|
|
} else if (match !== true && distanceSq < match.distanceSq) {
|
|
if (distanceSq === 0) {
|
|
features[key] = true;
|
|
matches.splice(matches.lastIndexOf(match), 1);
|
|
return callback(feature, layer, geometry);
|
|
}
|
|
match.geometry = geometry;
|
|
match.distanceSq = distanceSq;
|
|
}
|
|
return undefined;
|
|
};
|
|
|
|
const renderedTiles =
|
|
/** @type {Array<import("../../VectorRenderTile.js").default>} */ (
|
|
this.renderedTiles
|
|
);
|
|
|
|
let found;
|
|
for (let i = 0, ii = renderedTiles.length; !found && i < ii; ++i) {
|
|
const tile = renderedTiles[i];
|
|
const tileExtent = tileGrid.getTileCoordExtent(tile.wrappedTileCoord);
|
|
if (!intersects(tileExtent, hitExtent)) {
|
|
continue;
|
|
}
|
|
|
|
const layerUid = getUid(layer);
|
|
const executorGroups = [tile.executorGroups[layerUid]];
|
|
const declutterExecutorGroups = tile.declutterExecutorGroups[layerUid];
|
|
if (declutterExecutorGroups) {
|
|
executorGroups.push(declutterExecutorGroups);
|
|
}
|
|
executorGroups.some((executorGroups) => {
|
|
const declutteredFeatures =
|
|
executorGroups === declutterExecutorGroups
|
|
? frameState.declutterTree.all().map((item) => item.value)
|
|
: null;
|
|
for (let t = 0, tt = executorGroups.length; t < tt; ++t) {
|
|
const executorGroup = executorGroups[t];
|
|
found = executorGroup.forEachFeatureAtCoordinate(
|
|
coordinate,
|
|
resolution,
|
|
rotation,
|
|
hitTolerance,
|
|
featureCallback,
|
|
declutteredFeatures
|
|
);
|
|
if (found) {
|
|
return true;
|
|
}
|
|
}
|
|
});
|
|
}
|
|
return found;
|
|
}
|
|
|
|
/**
|
|
* Asynchronous layer level hit detection.
|
|
* @param {import("../../pixel.js").Pixel} pixel Pixel.
|
|
* @return {Promise<Array<import("../../Feature").default>>} Promise that resolves with an array of features.
|
|
*/
|
|
getFeatures(pixel) {
|
|
return new Promise(
|
|
function (resolve, reject) {
|
|
const layer =
|
|
/** @type {import("../../layer/VectorTile.js").default} */ (
|
|
this.getLayer()
|
|
);
|
|
const layerUid = getUid(layer);
|
|
const source = layer.getSource();
|
|
const projection = this.renderedProjection;
|
|
const projectionExtent = projection.getExtent();
|
|
const resolution = this.renderedResolution;
|
|
const tileGrid = source.getTileGridForProjection(projection);
|
|
const coordinate = applyTransform(
|
|
this.renderedPixelToCoordinateTransform_,
|
|
pixel.slice()
|
|
);
|
|
const tileCoord = tileGrid.getTileCoordForCoordAndResolution(
|
|
coordinate,
|
|
resolution
|
|
);
|
|
let tile;
|
|
for (let i = 0, ii = this.renderedTiles.length; i < ii; ++i) {
|
|
if (
|
|
tileCoord.toString() === this.renderedTiles[i].tileCoord.toString()
|
|
) {
|
|
tile = this.renderedTiles[i];
|
|
if (tile.getState() === TileState.LOADED) {
|
|
const extent = tileGrid.getTileCoordExtent(tile.tileCoord);
|
|
if (
|
|
source.getWrapX() &&
|
|
projection.canWrapX() &&
|
|
!containsExtent(projectionExtent, extent)
|
|
) {
|
|
wrapX(coordinate, projection);
|
|
}
|
|
break;
|
|
}
|
|
tile = undefined;
|
|
}
|
|
}
|
|
if (!tile || tile.loadingSourceTiles > 0) {
|
|
resolve([]);
|
|
return;
|
|
}
|
|
const extent = tileGrid.getTileCoordExtent(tile.wrappedTileCoord);
|
|
const corner = getTopLeft(extent);
|
|
const tilePixel = [
|
|
(coordinate[0] - corner[0]) / resolution,
|
|
(corner[1] - coordinate[1]) / resolution,
|
|
];
|
|
const features = tile
|
|
.getSourceTiles()
|
|
.reduce(function (accumulator, sourceTile) {
|
|
return accumulator.concat(sourceTile.getFeatures());
|
|
}, []);
|
|
let hitDetectionImageData = tile.hitDetectionImageData[layerUid];
|
|
if (!hitDetectionImageData && !this.animatingOrInteracting_) {
|
|
const tileSize = toSize(
|
|
tileGrid.getTileSize(
|
|
tileGrid.getZForResolution(resolution, source.zDirection)
|
|
)
|
|
);
|
|
const rotation = this.renderedRotation_;
|
|
const transforms = [
|
|
this.getRenderTransform(
|
|
tileGrid.getTileCoordCenter(tile.wrappedTileCoord),
|
|
resolution,
|
|
0,
|
|
HIT_DETECT_RESOLUTION,
|
|
tileSize[0] * HIT_DETECT_RESOLUTION,
|
|
tileSize[1] * HIT_DETECT_RESOLUTION,
|
|
0
|
|
),
|
|
];
|
|
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() {
|
|
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("../../Map.js").FrameState} frameState Frame state.
|
|
*/
|
|
renderDeclutter(frameState) {
|
|
const context = this.context;
|
|
const alpha = context.globalAlpha;
|
|
context.globalAlpha = this.getLayer().getOpacity();
|
|
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
|
|
);
|
|
}
|
|
}
|
|
}
|
|
context.globalAlpha = alpha;
|
|
}
|
|
|
|
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("../../Map.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]
|
|
);
|
|
|
|
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();
|
|
const context = this.context;
|
|
const alpha = context.globalAlpha;
|
|
context.globalAlpha = layer.getOpacity();
|
|
const replayTypes = VECTOR_REPLAYS[renderMode];
|
|
const viewState = frameState.viewState;
|
|
const rotation = viewState.rotation;
|
|
const tileSource = layer.getSource();
|
|
const tileGrid = tileSource.getTileGridForProjection(viewState.projection);
|
|
const z = tileGrid.getZForResolution(
|
|
viewState.resolution,
|
|
tileSource.zDirection
|
|
);
|
|
|
|
const tiles = this.renderedTiles;
|
|
const clips = [];
|
|
const clipZs = [];
|
|
let ready = true;
|
|
for (let i = tiles.length - 1; i >= 0; --i) {
|
|
const tile = /** @type {import("../../VectorRenderTile.js").default} */ (
|
|
tiles[i]
|
|
);
|
|
ready = ready && !tile.getReplayState(layer).dirty;
|
|
const executorGroups = tile.executorGroups[getUid(layer)].filter(
|
|
(group) => group.hasExecutors(replayTypes)
|
|
);
|
|
if (executorGroups.length === 0) {
|
|
continue;
|
|
}
|
|
const transform = this.getTileRenderTransform(tile, frameState);
|
|
const currentZ = tile.tileCoord[0];
|
|
let contextSaved = false;
|
|
// Clip mask for regions in this tile that already filled by a higher z tile
|
|
const currentClip = executorGroups[0].getClipCoords(transform);
|
|
if (currentClip) {
|
|
for (let j = 0, jj = clips.length; j < jj; ++j) {
|
|
if (z !== currentZ && currentZ < clipZs[j]) {
|
|
const clip = clips[j];
|
|
if (
|
|
intersects(
|
|
[
|
|
currentClip[0],
|
|
currentClip[3],
|
|
currentClip[4],
|
|
currentClip[7],
|
|
],
|
|
[clip[0], clip[3], clip[4], clip[7]]
|
|
)
|
|
) {
|
|
if (!contextSaved) {
|
|
context.save();
|
|
contextSaved = true;
|
|
}
|
|
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 z 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();
|
|
}
|
|
}
|
|
}
|
|
clips.push(currentClip);
|
|
clipZs.push(currentZ);
|
|
}
|
|
for (let t = 0, tt = executorGroups.length; t < tt; ++t) {
|
|
const executorGroup = executorGroups[t];
|
|
executorGroup.execute(
|
|
context,
|
|
1,
|
|
transform,
|
|
rotation,
|
|
hifi,
|
|
replayTypes
|
|
);
|
|
}
|
|
if (contextSaved) {
|
|
context.restore();
|
|
}
|
|
}
|
|
context.globalAlpha = alpha;
|
|
this.ready = ready;
|
|
|
|
return this.container;
|
|
}
|
|
|
|
/**
|
|
* @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.
|
|
* @return {boolean} A new tile image was rendered.
|
|
* @private
|
|
*/
|
|
tileImageNeedsRender_(tile) {
|
|
const layer = /** @type {import("../../layer/VectorTile.js").default} */ (
|
|
this.getLayer()
|
|
);
|
|
if (layer.getRenderMode() === 'vector') {
|
|
return false;
|
|
}
|
|
const replayState = tile.getReplayState(layer);
|
|
const revision = layer.getRevision();
|
|
const resolution = tile.wantedResolution;
|
|
return (
|
|
replayState.renderedTileResolution !== resolution ||
|
|
replayState.renderedTileRevision !== revision
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {import("../../VectorRenderTile.js").default} tile Tile.
|
|
* @param {import("../../Map").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;
|
|
|
|
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;
|