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liwenbiao
p4azsfjh3 2 years ago
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bmap.js
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(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('echarts')) :
typeof define === 'function' && define.amd ? define(['exports', 'echarts'], factory) :
(factory((global.bmap = {}),global.echarts));
}(this, (function (exports,echarts) { 'use strict';
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/* global BMap */
function BMapCoordSys(bmap, api) {
this._bmap = bmap;
this.dimensions = ['lng', 'lat'];
this._mapOffset = [0, 0];
this._api = api;
this._projection = new BMap.MercatorProjection();
}
BMapCoordSys.prototype.dimensions = ['lng', 'lat'];
BMapCoordSys.prototype.setZoom = function (zoom) {
this._zoom = zoom;
};
BMapCoordSys.prototype.setCenter = function (center) {
this._center = this._projection.lngLatToPoint(new BMap.Point(center[0], center[1]));
};
BMapCoordSys.prototype.setMapOffset = function (mapOffset) {
this._mapOffset = mapOffset;
};
BMapCoordSys.prototype.getBMap = function () {
return this._bmap;
};
BMapCoordSys.prototype.dataToPoint = function (data) {
var point = new BMap.Point(data[0], data[1]);
// TODO mercator projection is toooooooo slow
// var mercatorPoint = this._projection.lngLatToPoint(point);
// var width = this._api.getZr().getWidth();
// var height = this._api.getZr().getHeight();
// var divider = Math.pow(2, 18 - 10);
// return [
// Math.round((mercatorPoint.x - this._center.x) / divider + width / 2),
// Math.round((this._center.y - mercatorPoint.y) / divider + height / 2)
// ];
var px = this._bmap.pointToOverlayPixel(point);
var mapOffset = this._mapOffset;
return [px.x - mapOffset[0], px.y - mapOffset[1]];
};
BMapCoordSys.prototype.pointToData = function (pt) {
var mapOffset = this._mapOffset;
var pt = this._bmap.overlayPixelToPoint({
x: pt[0] + mapOffset[0],
y: pt[1] + mapOffset[1]
});
return [pt.lng, pt.lat];
};
BMapCoordSys.prototype.getViewRect = function () {
var api = this._api;
return new echarts.graphic.BoundingRect(0, 0, api.getWidth(), api.getHeight());
};
BMapCoordSys.prototype.getRoamTransform = function () {
return echarts.matrix.create();
};
BMapCoordSys.prototype.prepareCustoms = function (data) {
var rect = this.getViewRect();
return {
coordSys: {
// The name exposed to user is always 'cartesian2d' but not 'grid'.
type: 'bmap',
x: rect.x,
y: rect.y,
width: rect.width,
height: rect.height
},
api: {
coord: echarts.util.bind(this.dataToPoint, this),
size: echarts.util.bind(dataToCoordSize, this)
}
};
};
function dataToCoordSize(dataSize, dataItem) {
dataItem = dataItem || [0, 0];
return echarts.util.map([0, 1], function (dimIdx) {
var val = dataItem[dimIdx];
var halfSize = dataSize[dimIdx] / 2;
var p1 = [];
var p2 = [];
p1[dimIdx] = val - halfSize;
p2[dimIdx] = val + halfSize;
p1[1 - dimIdx] = p2[1 - dimIdx] = dataItem[1 - dimIdx];
return Math.abs(this.dataToPoint(p1)[dimIdx] - this.dataToPoint(p2)[dimIdx]);
}, this);
}
var Overlay;
// For deciding which dimensions to use when creating list data
BMapCoordSys.dimensions = BMapCoordSys.prototype.dimensions;
function createOverlayCtor() {
function Overlay(root) {
this._root = root;
}
Overlay.prototype = new BMap.Overlay();
/**
* 初始化
*
* @param {BMap.Map} map
* @override
*/
Overlay.prototype.initialize = function (map) {
map.getPanes().labelPane.appendChild(this._root);
return this._root;
};
/**
* @override
*/
Overlay.prototype.draw = function () {};
return Overlay;
}
BMapCoordSys.create = function (ecModel, api) {
var bmapCoordSys;
var root = api.getDom();
// TODO Dispose
ecModel.eachComponent('bmap', function (bmapModel) {
var painter = api.getZr().painter;
var viewportRoot = painter.getViewportRoot();
if (typeof BMap === 'undefined') {
throw new Error('BMap api is not loaded');
}
Overlay = Overlay || createOverlayCtor();
if (bmapCoordSys) {
throw new Error('Only one bmap component can exist');
}
if (!bmapModel.__bmap) {
// Not support IE8
var bmapRoot = root.querySelector('.ec-extension-bmap');
if (bmapRoot) {
// Reset viewport left and top, which will be changed
// in moving handler in BMapView
viewportRoot.style.left = '0px';
viewportRoot.style.top = '0px';
root.removeChild(bmapRoot);
}
bmapRoot = document.createElement('div');
bmapRoot.style.cssText = 'width:100%;height:100%';
// Not support IE8
bmapRoot.classList.add('ec-extension-bmap');
root.appendChild(bmapRoot);
var bmap = bmapModel.__bmap = new BMap.Map(bmapRoot);
var overlay = new Overlay(viewportRoot);
bmap.addOverlay(overlay);
// Override
painter.getViewportRootOffset = function () {
return {offsetLeft: 0, offsetTop: 0};
};
}
var bmap = bmapModel.__bmap;
// Set bmap options
// centerAndZoom before layout and render
var center = bmapModel.get('center');
var zoom = bmapModel.get('zoom');
if (center && zoom) {
var pt = new BMap.Point(center[0], center[1]);
bmap.centerAndZoom(pt, zoom);
}
bmapCoordSys = new BMapCoordSys(bmap, api);
bmapCoordSys.setMapOffset(bmapModel.__mapOffset || [0, 0]);
bmapCoordSys.setZoom(zoom);
bmapCoordSys.setCenter(center);
bmapModel.coordinateSystem = bmapCoordSys;
});
ecModel.eachSeries(function (seriesModel) {
if (seriesModel.get('coordinateSystem') === 'bmap') {
seriesModel.coordinateSystem = bmapCoordSys;
}
});
};
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
function v2Equal(a, b) {
return a && b && a[0] === b[0] && a[1] === b[1];
}
echarts.extendComponentModel({
type: 'bmap',
getBMap: function () {
// __bmap is injected when creating BMapCoordSys
return this.__bmap;
},
setCenterAndZoom: function (center, zoom) {
this.option.center = center;
this.option.zoom = zoom;
},
centerOrZoomChanged: function (center, zoom) {
var option = this.option;
return !(v2Equal(center, option.center) && zoom === option.zoom);
},
defaultOption: {
center: [104.114129, 37.550339],
zoom: 5,
mapStyle: {},
mapStyleV2: {},
roam: false
}
});
/**
* @module zrender/core/util
*/
// 用于处理merge时无法遍历Date等对象的问题
var BUILTIN_OBJECT = {
'[object Function]': 1,
'[object RegExp]': 1,
'[object Date]': 1,
'[object Error]': 1,
'[object CanvasGradient]': 1,
'[object CanvasPattern]': 1,
// For node-canvas
'[object Image]': 1,
'[object Canvas]': 1
};
var TYPED_ARRAY = {
'[object Int8Array]': 1,
'[object Uint8Array]': 1,
'[object Uint8ClampedArray]': 1,
'[object Int16Array]': 1,
'[object Uint16Array]': 1,
'[object Int32Array]': 1,
'[object Uint32Array]': 1,
'[object Float32Array]': 1,
'[object Float64Array]': 1
};
var objToString = Object.prototype.toString;
/**
* Those data types can be cloned:
* Plain object, Array, TypedArray, number, string, null, undefined.
* Those data types will be assgined using the orginal data:
* BUILTIN_OBJECT
* Instance of user defined class will be cloned to a plain object, without
* properties in prototype.
* Other data types is not supported (not sure what will happen).
*
* Caution: do not support clone Date, for performance consideration.
* (There might be a large number of date in `series.data`).
* So date should not be modified in and out of echarts.
*
* @param {*} source
* @return {*} new
*/
function clone(source) {
if (source == null || typeof source !== 'object') {
return source;
}
var result = source;
var typeStr = objToString.call(source);
if (typeStr === '[object Array]') {
if (!isPrimitive(source)) {
result = [];
for (var i = 0, len = source.length; i < len; i++) {
result[i] = clone(source[i]);
}
}
}
else if (TYPED_ARRAY[typeStr]) {
if (!isPrimitive(source)) {
var Ctor = source.constructor;
if (source.constructor.from) {
result = Ctor.from(source);
}
else {
result = new Ctor(source.length);
for (var i = 0, len = source.length; i < len; i++) {
result[i] = clone(source[i]);
}
}
}
}
else if (!BUILTIN_OBJECT[typeStr] && !isPrimitive(source) && !isDom(source)) {
result = {};
for (var key in source) {
if (source.hasOwnProperty(key)) {
result[key] = clone(source[key]);
}
}
}
return result;
}
/**
* @memberOf module:zrender/core/util
* @param {*} target
* @param {*} source
* @param {boolean} [overwrite=false]
*/
/**
* @param {Array} targetAndSources The first item is target, and the rests are source.
* @param {boolean} [overwrite=false]
* @return {*} target
*/
/**
* @param {*} target
* @param {*} source
* @memberOf module:zrender/core/util
*/
/**
* @param {*} target
* @param {*} source
* @param {boolean} [overlay=false]
* @memberOf module:zrender/core/util
*/
/**
* 查询数组中元素的index
* @memberOf module:zrender/core/util
*/
/**
* 构造类继承关系
*
* @memberOf module:zrender/core/util
* @param {Function} clazz 源类
* @param {Function} baseClazz 基类
*/
/**
* @memberOf module:zrender/core/util
* @param {Object|Function} target
* @param {Object|Function} sorce
* @param {boolean} overlay
*/
/**
* Consider typed array.
* @param {Array|TypedArray} data
*/
/**
* 数组或对象遍历
* @memberOf module:zrender/core/util
* @param {Object|Array} obj
* @param {Function} cb
* @param {*} [context]
*/
/**
* 数组映射
* @memberOf module:zrender/core/util
* @param {Array} obj
* @param {Function} cb
* @param {*} [context]
* @return {Array}
*/
/**
* @memberOf module:zrender/core/util
* @param {Array} obj
* @param {Function} cb
* @param {Object} [memo]
* @param {*} [context]
* @return {Array}
*/
/**
* 数组过滤
* @memberOf module:zrender/core/util
* @param {Array} obj
* @param {Function} cb
* @param {*} [context]
* @return {Array}
*/
/**
* 数组项查找
* @memberOf module:zrender/core/util
* @param {Array} obj
* @param {Function} cb
* @param {*} [context]
* @return {*}
*/
/**
* @memberOf module:zrender/core/util
* @param {Function} func
* @param {*} context
* @return {Function}
*/
/**
* @memberOf module:zrender/core/util
* @param {Function} func
* @return {Function}
*/
/**
* @memberOf module:zrender/core/util
* @param {*} value
* @return {boolean}
*/
/**
* @memberOf module:zrender/core/util
* @param {*} value
* @return {boolean}
*/
/**
* @memberOf module:zrender/core/util
* @param {*} value
* @return {boolean}
*/
/**
* @memberOf module:zrender/core/util
* @param {*} value
* @return {boolean}
*/
/**
* @memberOf module:zrender/core/util
* @param {*} value
* @return {boolean}
*/
/**
* @memberOf module:zrender/core/util
* @param {*} value
* @return {boolean}
*/
/**
* @memberOf module:zrender/core/util
* @param {*} value
* @return {boolean}
*/
function isDom(value) {
return typeof value === 'object'
&& typeof value.nodeType === 'number'
&& typeof value.ownerDocument === 'object';
}
/**
* Whether is exactly NaN. Notice isNaN('a') returns true.
* @param {*} value
* @return {boolean}
*/
/**
* If value1 is not null, then return value1, otherwise judget rest of values.
* Low performance.
* @memberOf module:zrender/core/util
* @return {*} Final value
*/
/**
* @memberOf module:zrender/core/util
* @param {Array} arr
* @param {number} startIndex
* @param {number} endIndex
* @return {Array}
*/
/**
* Normalize css liked array configuration
* e.g.
* 3 => [3, 3, 3, 3]
* [4, 2] => [4, 2, 4, 2]
* [4, 3, 2] => [4, 3, 2, 3]
* @param {number|Array.<number>} val
* @return {Array.<number>}
*/
/**
* @memberOf module:zrender/core/util
* @param {boolean} condition
* @param {string} message
*/
/**
* @memberOf module:zrender/core/util
* @param {string} str string to be trimed
* @return {string} trimed string
*/
var primitiveKey = '__ec_primitive__';
/**
* Set an object as primitive to be ignored traversing children in clone or merge
*/
function isPrimitive(obj) {
return obj[primitiveKey];
}
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
echarts.extendComponentView({
type: 'bmap',
render: function (bMapModel, ecModel, api) {
var rendering = true;
var bmap = bMapModel.getBMap();
var viewportRoot = api.getZr().painter.getViewportRoot();
var coordSys = bMapModel.coordinateSystem;
var moveHandler = function (type, target) {
if (rendering) {
return;
}
var offsetEl = viewportRoot.parentNode.parentNode.parentNode;
var mapOffset = [
-parseInt(offsetEl.style.left, 10) || 0,
-parseInt(offsetEl.style.top, 10) || 0
];
viewportRoot.style.left = mapOffset[0] + 'px';
viewportRoot.style.top = mapOffset[1] + 'px';
coordSys.setMapOffset(mapOffset);
bMapModel.__mapOffset = mapOffset;
api.dispatchAction({
type: 'bmapRoam'
});
};
function zoomEndHandler() {
if (rendering) {
return;
}
api.dispatchAction({
type: 'bmapRoam'
});
}
bmap.removeEventListener('moving', this._oldMoveHandler);
// FIXME
// Moveend may be triggered by centerAndZoom method when creating coordSys next time
// bmap.removeEventListener('moveend', this._oldMoveHandler);
bmap.removeEventListener('zoomend', this._oldZoomEndHandler);
bmap.addEventListener('moving', moveHandler);
// bmap.addEventListener('moveend', moveHandler);
bmap.addEventListener('zoomend', zoomEndHandler);
this._oldMoveHandler = moveHandler;
this._oldZoomEndHandler = zoomEndHandler;
var roam = bMapModel.get('roam');
if (roam && roam !== 'scale') {
bmap.enableDragging();
}
else {
bmap.disableDragging();
}
if (roam && roam !== 'move') {
bmap.enableScrollWheelZoom();
bmap.enableDoubleClickZoom();
bmap.enablePinchToZoom();
}
else {
bmap.disableScrollWheelZoom();
bmap.disableDoubleClickZoom();
bmap.disablePinchToZoom();
}
/* map 2.0 */
var originalStyle = bMapModel.__mapStyle;
var newMapStyle = bMapModel.get('mapStyle') || {};
// FIXME, Not use JSON methods
var mapStyleStr = JSON.stringify(newMapStyle);
if (JSON.stringify(originalStyle) !== mapStyleStr) {
// FIXME May have blank tile when dragging if setMapStyle
if (Object.keys(newMapStyle).length) {
bmap.setMapStyle(clone(newMapStyle));
}
bMapModel.__mapStyle = JSON.parse(mapStyleStr);
}
/* map 3.0 */
var originalStyle2 = bMapModel.__mapStyle2;
var newMapStyle2 = bMapModel.get('mapStyleV2') || {};
// FIXME, Not use JSON methods
var mapStyleStr2 = JSON.stringify(newMapStyle2);
if (JSON.stringify(originalStyle2) !== mapStyleStr2) {
// FIXME May have blank tile when dragging if setMapStyle
if (Object.keys(newMapStyle2).length) {
bmap.setMapStyleV2(clone(newMapStyle2));
}
bMapModel.__mapStyle2 = JSON.parse(mapStyleStr2);
}
rendering = false;
}
});
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* BMap component extension
*/
echarts.registerCoordinateSystem('bmap', BMapCoordSys);
// Action
echarts.registerAction({
type: 'bmapRoam',
event: 'bmapRoam',
update: 'updateLayout'
}, function (payload, ecModel) {
ecModel.eachComponent('bmap', function (bMapModel) {
var bmap = bMapModel.getBMap();
var center = bmap.getCenter();
bMapModel.setCenterAndZoom([center.lng, center.lat], bmap.getZoom());
});
});
var version = '1.0.0';
exports.version = version;
})));
//# sourceMappingURL=bmap.js.map
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