kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
195 lines (160 loc) • 17.8 kB
JavaScript
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = undefined;
var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');
var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
var _createClass2 = require('babel-runtime/helpers/createClass');
var _createClass3 = _interopRequireDefault(_createClass2);
var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');
var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);
var _get2 = require('babel-runtime/helpers/get');
var _get3 = _interopRequireDefault(_get2);
var _inherits2 = require('babel-runtime/helpers/inherits');
var _inherits3 = _interopRequireDefault(_inherits2);
var _extends2 = require('babel-runtime/helpers/extends');
var _extends3 = _interopRequireDefault(_extends2);
var _deck = require('deck.gl');
var _luma = require('luma.gl');
var _shaderUtils = require('../layer-utils/shader-utils');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var defaultProps = (0, _extends3.default)({}, _deck.LineLayer.defaultProps, {
// show arc if source is in brush
brushSource: true,
// show arc if target is in brush
brushTarget: true,
enableBrushing: true,
getStrokeWidth: function getStrokeWidth(d) {
return d.strokeWidth;
},
getTargetColor: function getTargetColor(x) {
return x.color || [0, 0, 0, 255];
},
strokeScale: 1,
// brush radius in meters
brushRadius: 100000,
mousePosition: [0, 0]
}); // 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.
function addBrushingVsShader(vs) {
var targetColorVs = (0, _shaderUtils.editShader)(vs, 'line target color vs', 'attribute vec4 instanceColors;', 'attribute vec4 instanceColors; attribute vec4 instanceTargetColors;');
var brushingVs = (0, _shaderUtils.editShader)(targetColorVs, 'line brushing vs', 'vec2 offset = getExtrusionOffset(target.xy - source.xy, positions.y);', 'vec2 offset = brushing_getExtrusionOffset(target.xy - source.xy, positions.y, project_uViewportSize, vec4(instanceSourcePositions.xy, instanceTargetPositions.xy), instanceWidths);');
return (0, _shaderUtils.editShader)(brushingVs, 'line color vs', 'vColor = vec4(instanceColors.rgb, instanceColors.a * opacity) / 255.;', 'vec4 color = mix(instanceColors, instanceTargetColors, positions.x) / 255.;' + 'vColor = vec4(color.rgb, color.a * opacity);');
}
var LineBrushingLayer = function (_LineLayer) {
(0, _inherits3.default)(LineBrushingLayer, _LineLayer);
function LineBrushingLayer() {
(0, _classCallCheck3.default)(this, LineBrushingLayer);
return (0, _possibleConstructorReturn3.default)(this, (LineBrushingLayer.__proto__ || Object.getPrototypeOf(LineBrushingLayer)).apply(this, arguments));
}
(0, _createClass3.default)(LineBrushingLayer, [{
key: 'getShaders',
value: function getShaders() {
var shaders = (0, _get3.default)(LineBrushingLayer.prototype.__proto__ || Object.getPrototypeOf(LineBrushingLayer.prototype), 'getShaders', this).call(this);
// const addons = getExtrusion + isPicked + isPtInRange;
return {
// ...shaders,
vs: addBrushingVsShader(shaders.vs),
fs: shaders.fs,
// vs: this.props.fp64 ? addons + vs64 : addons + vs,
modules: shaders.modules.concat(['brushing'])
};
}
}, {
key: 'initializeState',
value: function initializeState() {
(0, _get3.default)(LineBrushingLayer.prototype.__proto__ || Object.getPrototypeOf(LineBrushingLayer.prototype), 'initializeState', this).call(this);
var attributeManager = this.state.attributeManager;
attributeManager.addInstanced({
instanceTargetColors: {
size: 4,
type: _luma.GL.UNSIGNED_BYTE,
accessor: 'getTargetColor',
update: this.calculateInstanceTargetColors
}
});
}
}, {
key: 'draw',
value: function draw(_ref) {
var uniforms = _ref.uniforms;
var _props = this.props,
brushSource = _props.brushSource,
brushTarget = _props.brushTarget,
brushRadius = _props.brushRadius,
enableBrushing = _props.enableBrushing,
mousePosition = _props.mousePosition,
strokeScale = _props.strokeScale;
(0, _get3.default)(LineBrushingLayer.prototype.__proto__ || Object.getPrototypeOf(LineBrushingLayer.prototype), 'draw', this).call(this, {
uniforms: (0, _extends3.default)({}, uniforms, {
brushing_uBrushSource: brushSource ? 1 : 0,
brushing_uBrushTarget: brushTarget ? 1 : 0,
brushing_uBrushRadius: brushRadius,
brushing_uEnableBrushing: enableBrushing ? 1 : 0,
brushing_uStrokeScale: strokeScale,
brushing_uMousePosition: mousePosition ? new Float32Array(this.unproject(mousePosition)) : defaultProps.mousePosition
})
});
}
}, {
key: 'calculateInstanceTargetColors',
value: function calculateInstanceTargetColors(attribute) {
var _props2 = this.props,
data = _props2.data,
getTargetColor = _props2.getTargetColor;
var value = attribute.value,
size = attribute.size;
var i = 0;
var _iteratorNormalCompletion = true;
var _didIteratorError = false;
var _iteratorError = undefined;
try {
for (var _iterator = data[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var object = _step.value;
var color = getTargetColor(object);
value[i + 0] = color[0];
value[i + 1] = color[1];
value[i + 2] = color[2];
value[i + 3] = isNaN(color[3]) ? 255 : color[3];
i += size;
}
} catch (err) {
_didIteratorError = true;
_iteratorError = err;
} finally {
try {
if (!_iteratorNormalCompletion && _iterator.return) {
_iterator.return();
}
} finally {
if (_didIteratorError) {
throw _iteratorError;
}
}
}
}
}]);
return LineBrushingLayer;
}(_deck.LineLayer);
exports.default = LineBrushingLayer;
LineBrushingLayer.layerName = 'LineBrushingLayer';
LineBrushingLayer.defaultProps = defaultProps;
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IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n// THE SOFTWARE.\n\nimport {LineLayer} from 'deck.gl';\nimport {GL} from 'luma.gl';\nimport {editShader} from 'deckgl-layers/layer-utils/shader-utils';\n\nconst defaultProps = {\n  ...LineLayer.defaultProps,\n  // show arc if source is in brush\n  brushSource: true,\n  // show arc if target is in brush\n  brushTarget: true,\n  enableBrushing: true,\n  getStrokeWidth: d => d.strokeWidth,\n  getTargetColor: x => x.color || [0, 0, 0, 255],\n  strokeScale: 1,\n\n  // brush radius in meters\n  brushRadius: 100000,\n  mousePosition: [0, 0]\n};\n\nfunction addBrushingVsShader(vs) {\n  const targetColorVs = editShader(\n    vs,\n    'line target color vs',\n    'attribute vec4 instanceColors;',\n    'attribute vec4 instanceColors; attribute vec4 instanceTargetColors;'\n  );\n\n  const brushingVs = editShader(\n    targetColorVs,\n    'line brushing vs',\n    'vec2 offset = getExtrusionOffset(target.xy - source.xy, positions.y);',\n    'vec2 offset = brushing_getExtrusionOffset(target.xy - source.xy, positions.y, project_uViewportSize, vec4(instanceSourcePositions.xy, instanceTargetPositions.xy), instanceWidths);'\n  );\n\n  return editShader(\n    brushingVs,\n    'line color vs',\n    'vColor = vec4(instanceColors.rgb, instanceColors.a * opacity) / 255.;',\n    `vec4 color = mix(instanceColors, instanceTargetColors, positions.x) / 255.;` +\n    `vColor = vec4(color.rgb, color.a * opacity);`\n  )\n}\n\nexport default class LineBrushingLayer extends LineLayer {\n  getShaders() {\n    const shaders = super.getShaders();\n    // const addons = getExtrusion + isPicked + isPtInRange;\n\n    return {\n      // ...shaders,\n      vs: addBrushingVsShader(shaders.vs),\n      fs: shaders.fs,\n      // vs: this.props.fp64 ? addons + vs64 : addons + vs,\n      modules: shaders.modules.concat(['brushing'])\n    };\n  }\n\n  initializeState() {\n    super.initializeState();\n    const {attributeManager} = this.state;\n    attributeManager.addInstanced({\n      instanceTargetColors: {\n        size: 4,\n        type: GL.UNSIGNED_BYTE,\n        accessor: 'getTargetColor',\n        update: this.calculateInstanceTargetColors\n      }\n    });\n  }\n\n  draw({uniforms}) {\n    const {\n      brushSource,\n      brushTarget,\n      brushRadius,\n      enableBrushing,\n      mousePosition,\n      strokeScale\n    } = this.props;\n\n    super.draw({\n      uniforms: {\n        ...uniforms,\n        brushing_uBrushSource: brushSource ? 1 : 0,\n        brushing_uBrushTarget: brushTarget ? 1 : 0,\n        brushing_uBrushRadius: brushRadius,\n        brushing_uEnableBrushing: enableBrushing ? 1 : 0,\n        brushing_uStrokeScale: strokeScale,\n        brushing_uMousePosition: mousePosition\n          ? new Float32Array(this.unproject(mousePosition))\n          : defaultProps.mousePosition\n      }\n    });\n  }\n\n  calculateInstanceTargetColors(attribute) {\n    const {data, getTargetColor} = this.props;\n    const {value, size} = attribute;\n    let i = 0;\n    for (const object of data) {\n      const color = getTargetColor(object);\n      value[i + 0] = color[0];\n      value[i + 1] = color[1];\n      value[i + 2] = color[2];\n      value[i + 3] = isNaN(color[3]) ? 255 : color[3];\n      i += size;\n    }\n  }\n}\n\nLineBrushingLayer.layerName = 'LineBrushingLayer';\nLineBrushingLayer.defaultProps = defaultProps;\n"]}
;