kepler.gl/dist/utils/gl-utils.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.setLayerBlending = setLayerBlending;

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

var _core = require("@luma.gl/core");

var _defaultSettings = require("../constants/default-settings");

var _constants = _interopRequireDefault(require("@luma.gl/constants"));

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; }

var getGlConst = function getGlConst(d) {
  return _constants["default"][d];
};

function setLayerBlending(gl, layerBlending) {
  var blending = _defaultSettings.LAYER_BLENDINGS[layerBlending];
  var blendFunc = blending.blendFunc,
      blendEquation = blending.blendEquation;
  (0, _core.setParameters)(gl, _objectSpread((0, _defineProperty2["default"])({}, _constants["default"].BLEND, true), blendFunc ? {
    blendFunc: blendFunc.map(getGlConst),
    blendEquation: Array.isArray(blendEquation) ? blendEquation.map(getGlConst) : getGlConst(blendEquation)
  } : {}));
}
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