kepler.gl/dist/deckgl-layers/scatterplot-brushing-layer/scatterplot-brushing-layer.js

kepler.gl is a webgl based application to visualize large scale location data in the browser

'use strict';

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 _shaderUtils = require('../layer-utils/shader-utils');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// 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) {
  return (0, _shaderUtils.editShader)(vs, 'scatterplot brushing vs', 'outerRadiusPixels += outline * strokeWidth / 2.0;', 'outerRadiusPixels = brushing_getRadius(instancePositions, outerRadiusPixels + outline * strokeWidth / 2.0);');
}

var defaultProps = (0, _extends3.default)({}, _deck.ScatterplotLayer.defaultProps, {
  enableBrushing: true,
  // brush radius in meters
  brushRadius: 100000,
  mousePosition: [0, 0],
  outsideBrushRadius: 0
});

var ScatterplotBrushingLayer = function (_ScatterplotLayer) {
  (0, _inherits3.default)(ScatterplotBrushingLayer, _ScatterplotLayer);

  function ScatterplotBrushingLayer() {
    (0, _classCallCheck3.default)(this, ScatterplotBrushingLayer);
    return (0, _possibleConstructorReturn3.default)(this, (ScatterplotBrushingLayer.__proto__ || Object.getPrototypeOf(ScatterplotBrushingLayer)).apply(this, arguments));
  }

  (0, _createClass3.default)(ScatterplotBrushingLayer, [{
    key: 'getShaders',
    value: function getShaders() {
      var shaders = (0, _get3.default)(ScatterplotBrushingLayer.prototype.__proto__ || Object.getPrototypeOf(ScatterplotBrushingLayer.prototype), 'getShaders', this).call(this);
      return {
        vs: addBrushingVsShader(shaders.vs),
        fs: shaders.fs,
        modules: shaders.modules.concat(['brushing'])
      };
    }
  }, {
    key: 'draw',
    value: function draw(opts) {
      var uniforms = opts.uniforms;
      var _props = this.props,
          brushRadius = _props.brushRadius,
          enableBrushing = _props.enableBrushing,
          mousePosition = _props.mousePosition,
          outsideBrushRadius = _props.outsideBrushRadius;

      // add uniforms

      (0, _get3.default)(ScatterplotBrushingLayer.prototype.__proto__ || Object.getPrototypeOf(ScatterplotBrushingLayer.prototype), 'draw', this).call(this, (0, _extends3.default)({}, opts, {
        uniforms: (0, _extends3.default)({}, uniforms, {
          brushing_uBrushRadius: brushRadius,
          brushing_uOutsideBrushRadius: outsideBrushRadius,
          brushing_uMousePosition: mousePosition ? new Float32Array(this.unproject(mousePosition)) : defaultProps.mousePosition,
          brushing_uEnableBrushing: enableBrushing ? 1 : 0
        })
      }));
    }
  }]);
  return ScatterplotBrushingLayer;
}(_deck.ScatterplotLayer);

exports.default = ScatterplotBrushingLayer;


ScatterplotBrushingLayer.layerName = 'ScatterplotBrushingLayer';
ScatterplotBrushingLayer.defaultProps = defaultProps;
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