kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
57 lines (51 loc) • 2.08 kB
JavaScript
// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import {ScatterplotLayer} from 'deck.gl';
import {Geometry, Model} from 'luma.gl';
import {GL} from 'luma.gl';
export default class ScatterplotIconLayer extends ScatterplotLayer {
_getModel(gl) {
// use default scatterplot shaders
const shaders = this.getShaders();
const defaultPos = [-1, -1, 0, -1, 1, 0, 1, 1, 0, 1, -1, 0];
const {iconGeometry} = this.props;
const geometry = iconGeometry
? new Geometry({
drawMode: GL.TRIANGLES,
attributes: {
positions: new Float32Array(iconGeometry)
}
})
: new Geometry({
drawMode: GL.TRIANGLE_FAN,
attributes: {
positions: new Float32Array(defaultPos)
}
});
return new Model(gl, {
...shaders,
id: this.props.id,
geometry,
isInstanced: true,
shaderCache: this.context.shaderCache
});
}
}
ScatterplotIconLayer.layerName = 'ScatterplotIconLayer';