kepler.gl.geoiq/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";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));

var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));

var _get2 = _interopRequireDefault(require("@babel/runtime/helpers/get"));

var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));

var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));

var _deck = require("deck.gl");

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

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { (0, _defineProperty2["default"])(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

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

var ScatterplotBrushingLayer =
/*#__PURE__*/
function (_ScatterplotLayer) {
  (0, _inherits2["default"])(ScatterplotBrushingLayer, _ScatterplotLayer);

  function ScatterplotBrushingLayer() {
    (0, _classCallCheck2["default"])(this, ScatterplotBrushingLayer);
    return (0, _possibleConstructorReturn2["default"])(this, (0, _getPrototypeOf2["default"])(ScatterplotBrushingLayer).apply(this, arguments));
  }

  (0, _createClass2["default"])(ScatterplotBrushingLayer, [{
    key: "getShaders",
    value: function getShaders() {
      var shaders = (0, _get2["default"])((0, _getPrototypeOf2["default"])(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 _this$props = this.props,
          brushRadius = _this$props.brushRadius,
          enableBrushing = _this$props.enableBrushing,
          mousePosition = _this$props.mousePosition,
          outsideBrushRadius = _this$props.outsideBrushRadius; // add uniforms

      (0, _get2["default"])((0, _getPrototypeOf2["default"])(ScatterplotBrushingLayer.prototype), "draw", this).call(this, _objectSpread({}, opts, {
        uniforms: _objectSpread({}, 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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