kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
76 lines (75 loc) • 9.09 kB
JavaScript
;
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 _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
var _core = require("@deck.gl/core");
var _constants = _interopRequireDefault(require("@luma.gl/constants"));
var _filterShaderModule = _interopRequireDefault(require("./filter-shader-module"));
function _callSuper(t, o, e) { return o = (0, _getPrototypeOf2["default"])(o), (0, _possibleConstructorReturn2["default"])(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], (0, _getPrototypeOf2["default"])(t).constructor) : o.apply(t, e)); }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); } // SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
var VALUE_FILTERED = 1;
var defaultProps = {
getFiltered: {
type: 'accessor',
value: VALUE_FILTERED
}
};
/**
* FilterArrowExtension - a deck.gl extension to filter arrow layer
*
* A simple extension to filter arrow layer based on the result of CPU filteredIndex,
* so we can avoid filtering on the raw Arrow table and recreating geometry attributes.
* Specifically, an attribute `filtered` is added to the layer to indicate whether the feature has been Filtered
* the shader module is modified to discard the feature if filtered value is 0
* the accessor getFiltered is used to get the value of `filtered` based on the value `filteredIndex` in Arrowlayer
*/
var FilterArrowExtension = exports["default"] = /*#__PURE__*/function (_LayerExtension) {
function FilterArrowExtension() {
(0, _classCallCheck2["default"])(this, FilterArrowExtension);
return _callSuper(this, FilterArrowExtension, arguments);
}
(0, _inherits2["default"])(FilterArrowExtension, _LayerExtension);
return (0, _createClass2["default"])(FilterArrowExtension, [{
key: "getShaders",
value: function getShaders() {
return {
modules: [_filterShaderModule["default"]],
defines: {}
};
}
}, {
key: "initializeState",
value: function initializeState() {
var attributeManager = this.getAttributeManager();
if (attributeManager) {
attributeManager.add({
filtered: {
size: 1,
type: _constants["default"].FLOAT,
accessor: 'getFiltered',
shaderAttributes: {
filtered: {
divisor: 0
},
instanceFiltered: {
divisor: 1
}
}
}
});
}
}
}]);
}(_core.LayerExtension);
(0, _defineProperty2["default"])(FilterArrowExtension, "defaultProps", defaultProps);
(0, _defineProperty2["default"])(FilterArrowExtension, "extensionName", 'FilterArrowExtension');
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