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Add an image vector layer for rendering vectors to an image

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This commit is contained in:
Tim Schaub
2018-11-04 11:25:36 -07:00
parent ae1f3afd66
commit 2ec509fbca
19 changed files with 543 additions and 466 deletions
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57
src/ol/source/Raster.js
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@@ -10,15 +10,14 @@ import Event from '../events/Event.js';
import EventType from '../events/EventType.js';
import {Processor} from 'pixelworks/lib/index';
import {equals, getCenter, getHeight, getWidth} from '../extent.js';
import LayerType from '../LayerType.js';
import ImageLayer from '../layer/Image.js';
import TileLayer from '../layer/Tile.js';
import {assign} from '../obj.js';
import CanvasImageLayerRenderer from '../renderer/canvas/ImageLayer.js';
import CanvasTileLayerRenderer from '../renderer/canvas/TileLayer.js';
import ImageSource from './Image.js';
import SourceState from './State.js';
import {create as createTransform} from '../transform.js';
import ImageSource from './Image.js';
import TileSource from './Tile.js';
import SourceState from './State.js';
import Source from './Source.js';
/**
@@ -113,7 +112,7 @@ class RasterSourceEvent extends Event {
/**
* @typedef {Object} Options
* @property {Array<import("./Source.js").default|import("../layer/Layer.js").default>} sources Input
* sources or layers. Vector layers must be configured with `renderMode: 'image'`.
* sources or layers. For vector data, use an VectorImage layer.
* @property {Operation} [operation] Raster operation.
* The operation will be called with data from input sources
* and the output will be assigned to the raster source.
@@ -490,42 +489,18 @@ function createRenderers(sources) {
* @return {import("../renderer/canvas/Layer.js").default} The renderer.
*/
function createRenderer(layerOrSource) {
const tileSource = /** @type {import("./Tile.js").default} */ (layerOrSource);
const imageSource = /** @type {import("./Image.js").default} */ (layerOrSource);
const layer = /** @type {import("../layer/Layer.js").default} */ (layerOrSource);
let renderer = null;
if (typeof tileSource.getTile === 'function') {
renderer = createTileRenderer(tileSource);
} else if (typeof imageSource.getImage === 'function') {
renderer = createImageRenderer(imageSource);
} else if (layer.getType() === LayerType.TILE) {
renderer = new CanvasTileLayerRenderer(/** @type {import("../layer/Tile.js").default} */ (layer));
} else if (layer.getType() == LayerType.IMAGE || layer.getType() == LayerType.VECTOR) {
renderer = new CanvasImageLayerRenderer(/** @type {import("../layer/Image.js").default} */ (layer));
// @type {import("../layer/Layer.js").default}
let layer;
if (layerOrSource instanceof Source) {
if (layerOrSource instanceof TileSource) {
layer = new TileLayer({source: layerOrSource});
} else if (layerOrSource instanceof ImageSource) {
layer = new ImageLayer({source: layerOrSource});
}
} else {
layer = layerOrSource;
}
return renderer;
}
/**
* Create an image renderer for the provided source.
* @param {import("./Image.js").default} source The source.
* @return {import("../renderer/canvas/Layer.js").default} The renderer.
*/
function createImageRenderer(source) {
const layer = new ImageLayer({source: source});
return new CanvasImageLayerRenderer(layer);
}
/**
* Create a tile renderer for the provided source.
* @param {import("./Tile.js").default} source The source.
* @return {import("../renderer/canvas/Layer.js").default} The renderer.
*/
function createTileRenderer(source) {
const layer = new TileLayer({source: source});
return new CanvasTileLayerRenderer(layer);
return layer ? /** @type {import("../renderer/canvas/Layer.js").default} */ (layer.createRenderer()) : null;
}