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examples/layer-browser/src/examples/aggregation-layers.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| import { | ||
| GridLayer, | ||
| GPUGridLayer, | ||
| CPUGridLayer, | ||
| HexagonLayer, | ||
| ContourLayer, | ||
| ScreenGridLayer, | ||
| HeatmapLayer | ||
| } from '@deck.gl/aggregation-layers'; | ||
|
|
||
| // Demonstrate immutable support | ||
| import * as dataSamples from '../data-samples'; | ||
|
|
||
| const ScreenGridLayerExample = { | ||
| layer: ScreenGridLayer, | ||
| getData: () => dataSamples.points, | ||
| props: { | ||
| id: 'screenGridLayer', | ||
| getPosition: d => d.COORDINATES, | ||
| cellSizePixels: 40, | ||
| pickable: false | ||
| } | ||
| }; | ||
|
|
||
| const ContourLayerExample = { | ||
| layer: ContourLayer, | ||
| getData: () => dataSamples.points, | ||
| props: { | ||
| id: 'contourLayer', | ||
| cellSize: 200, | ||
| getPosition: d => d.COORDINATES, | ||
| gpuAggregation: true, | ||
| contours: [ | ||
| {threshold: 1, color: [255, 0, 0], strokeWidth: 4}, | ||
| {threshold: 5, color: [0, 255, 0], strokeWidth: 2}, | ||
| {threshold: 15, color: [0, 0, 255]} | ||
| ] | ||
| } | ||
| }; | ||
|
|
||
| const ContourLayerBandsExample = { | ||
| layer: ContourLayer, | ||
| getData: () => dataSamples.points, | ||
| props: { | ||
| id: 'contourLayer', | ||
| cellSize: 200, | ||
| getPosition: d => d.COORDINATES, | ||
| gpuAggregation: true, | ||
| contours: [ | ||
| {threshold: [1, 5], color: [255, 0, 0]}, | ||
| {threshold: [5, 15], color: [0, 255, 0]}, | ||
| {threshold: [15, 1000], color: [0, 0, 255]} | ||
| ] | ||
| } | ||
| }; | ||
|
|
||
| function getMean(pts, key) { | ||
| const filtered = pts.filter(pt => Number.isFinite(pt[key])); | ||
|
|
||
| return filtered.length | ||
| ? filtered.reduce((accu, curr) => accu + curr[key], 0) / filtered.length | ||
| : null; | ||
| } | ||
|
|
||
| function getMax(pts, key) { | ||
| const filtered = pts.filter(pt => Number.isFinite(pt[key])); | ||
|
|
||
| return filtered.length | ||
| ? filtered.reduce((accu, curr) => (curr[key] > accu ? curr[key] : accu), -Infinity) | ||
| : null; | ||
| } | ||
|
|
||
| const CPUGridLayerExample = { | ||
| layer: CPUGridLayer, | ||
| props: { | ||
| id: 'gridLayer', | ||
| data: dataSamples.points, | ||
| cellSize: 200, | ||
| opacity: 1, | ||
| extruded: true, | ||
| pickable: true, | ||
| getPosition: d => d.COORDINATES, | ||
| getColorValue: points => getMean(points, 'SPACES'), | ||
| getElevationValue: points => getMax(points, 'SPACES') | ||
| } | ||
| }; | ||
|
|
||
| const HexagonLayerExample = { | ||
| layer: HexagonLayer, | ||
| props: { | ||
| id: 'HexagonLayer', | ||
| data: dataSamples.points, | ||
| extruded: true, | ||
| pickable: true, | ||
| radius: 1000, | ||
| opacity: 1, | ||
| elevationScale: 1, | ||
| elevationRange: [0, 3000], | ||
| coverage: 1, | ||
| getPosition: d => d.COORDINATES, | ||
| getColorValue: points => getMean(points, 'SPACES'), | ||
| getElevationValue: points => getMax(points, 'SPACES') | ||
| } | ||
| }; | ||
|
|
||
| const GRID_LAYER_PROPS_OBJECT = { | ||
| id: 'grid-layer', | ||
| cellSize: 200, | ||
| opacity: 1, | ||
| extruded: true, | ||
| pickable: false, | ||
| getPosition: d => d.COORDINATES | ||
| }; | ||
|
|
||
| const GPU_GRID_LAYER_PROPS_OBJECT = Object.assign({}, GRID_LAYER_PROPS_OBJECT, { | ||
| id: 'gpu-grid-layer' | ||
| }); | ||
|
|
||
| const GRID_LAYER_PROPS = { | ||
| getData: () => dataSamples.points, | ||
| props: GRID_LAYER_PROPS_OBJECT | ||
| }; | ||
|
|
||
| const GPU_GRID_LAYER_PROPS = { | ||
| getData: () => dataSamples.points, | ||
| props: GPU_GRID_LAYER_PROPS_OBJECT | ||
| }; | ||
|
|
||
| const HEAT_LAYER_PROPS = { | ||
| getData: () => dataSamples.points, | ||
| props: { | ||
| id: 'heatmp-layer', | ||
| opacity: 1, | ||
| pickable: false, | ||
| getPosition: d => d.COORDINATES | ||
| } | ||
| }; | ||
|
|
||
| const GPUGridLayerExample = Object.assign({}, {layer: GPUGridLayer}, GPU_GRID_LAYER_PROPS); | ||
| const GridLayerExample = Object.assign({}, {layer: GridLayer}, GRID_LAYER_PROPS); | ||
| const HeatmapLayerExample = Object.assign({}, {layer: HeatmapLayer}, HEAT_LAYER_PROPS); | ||
|
|
||
| const GPUGridLayerPerfExample = (id, getData) => ({ | ||
| layer: GPUGridLayer, | ||
| getData, | ||
| props: { | ||
| id: `gpuGridLayerPerf-${id}`, | ||
| cellSize: 200, | ||
| opacity: 1, | ||
| extruded: true, | ||
| pickable: false, | ||
| getPosition: d => d | ||
| } | ||
| }); | ||
|
|
||
| /* eslint-disable quote-props */ | ||
| export default { | ||
| 'Aggregation Layers': { | ||
| CPUGridLayer: CPUGridLayerExample, | ||
| ScreenGridLayer: ScreenGridLayerExample, | ||
| HexagonLayer: HexagonLayerExample, | ||
| ContourLayer: ContourLayerExample, | ||
| 'ContourLayer (Bands)': ContourLayerBandsExample, | ||
| GPUGridLayer: GPUGridLayerExample, | ||
| GridLayer: GridLayerExample, | ||
| HeatmapLayer: HeatmapLayerExample, | ||
| 'GPUGridLayer (1M)': GPUGridLayerPerfExample('1M', dataSamples.getPoints1M), | ||
| 'GPUGridLayer (5M)': GPUGridLayerPerfExample('5M', dataSamples.getPoints5M) | ||
| } | ||
| }; |
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