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/* Copyright© 2000 - 2018 SuperMap Software Co.Ltd. All rights reserved.
* This program are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution and is available at http://www.apache.org/licenses/LICENSE-2.0.html.*/
import { SuperMap } from '../../SuperMap';
import { ChartModel } from "./ChartModel";
/**
* @class SuperMap.Widgets.ChartViewModel
* @classdesc 图表微件功能类
* @param {Object} options - 可选参数。
* @param {string} options.type - 图表类型。
* @param {Object} options.datasets - 数据来源。
* @param {Array.<Object>} options.chartOptions - 图表可选参数。
* @param {Array.<Object>} options.chartOptions.xAxis - 图表X轴。
* @param {string} options.chartOptions.xAxis.field - 图表X轴字段名。
* @param {string} options.chartOptions.xAxis.name - 图表X轴名称。
* @param {Array.<Object>} options.chartOptions.yAxis - 图表Y轴。
* @param {string} options.chartOptions.yAxis.field - 图表Y轴字段名。
* @param {string} options.chartOptions.yAxis.name - 图表Y轴名称。
*/
export class ChartViewModel {
constructor(options) {
this.datasets = options.datasets;
this.xField = [];
this.yField = [];
this.grid = {
top: "50px",
bottom: "50px",
left: "50px",
right: "60px"
};
this.chartType = options.type || "bar";
this._initXYField(options.chartOptions);
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._initXYField
* @description 初始化XY字段。
* @private
* @param {Object} chartOptions - options里的图表参数
*/
_initXYField(chartOptions) {
let me = this;
if (chartOptions && chartOptions.length > 0) {
chartOptions.forEach(function (option) {
if (option.xAxis) {
me.xField.push({
field: option.xAxis.field,
name: option.xAxis.name
});
}
if (option.yAxis) {
me.yField.push({
field: option.yAxis.field,
name: option.yAxis.name
});
}
});
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype.getDatasetInfo
* @description 获得数据集数据。
* @param {function} success - 成功回调函数
*/
getDatasetInfo(success) {
this.createChart = success;
if (this.datasets && this._checkUrl(this.datasets.url)) {
this.chartModel = new ChartModel(this.datasets);
this.chartModel.getDatasetInfo(this._getDatasetInfoSuccess.bind(this));
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._getDatasetInfoSuccess
* @description 成功回调函数。
* @private
* @param {Object} results - 数据集信息
*/
_getDatasetInfoSuccess(results) {
let datasetUrl = this.datasets.url;
//判断服务为地图服务 或者 数据服务
let restIndex = datasetUrl.indexOf("rest");
if (restIndex > 0) {
let index = datasetUrl.indexOf("/", restIndex + 5);
let type = datasetUrl.substring(restIndex + 5, index);
let dataUrl = datasetUrl.substring(0, restIndex + 4) + "/data";
if (type === "maps") {
let mapIndex = datasetUrl.indexOf("/", index + 1);
let mapName = datasetUrl.substring(index + 1, mapIndex);
dataUrl = datasetUrl.substring(0, restIndex + 4) + "/maps/" + mapName;
results.result.dataUrl = dataUrl;
this._getLayerFeatures(results);
} else if (type === "data") {
results.result.dataUrl = dataUrl;
this._getDataFeatures(results);
}
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._getDataFeatures
* @description 请求数据集的数据信息
* @private
* @param {Object} results - 数据集信息
*/
_getDataFeatures(results) {
this.chartModel.getDataFeatures(results, this._getChartDatas.bind(this));
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._getLayerFeatures
* @description 请求图层的数据信息
* @private
* @param {Object} results - 数据集信息
*/
_getLayerFeatures(results) {
this.chartModel.getLayerFeatures(results, this._getChartDatasFromLayer.bind(this));
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._getChartDatas
* @description 将请求回来的数据转换为图表所需的数据格式
* @private
* @param {Object} results - 数据要素信息
*/
_getChartDatas(results) {
if (results.result.features) {
this.features = results.result.features;
let features = results.result.features.features;
let data = {};
if (features.length) {
let feature = features[0];
let attrFields = [],
itemTypes = [];
for (let attr in feature.properties) {
attrFields.push(attr);
itemTypes.push(this._getDataType(feature.properties[attr]));
}
data = {
features: results.result.features,
fieldCaptions: attrFields,
fieldTypes: itemTypes,
fieldValues: []
}
for (let m in itemTypes) {
let fieldValue = [];
for (let j in features) {
let feature = features[j];
let caption = data.fieldCaptions[m];
let value = feature.properties[caption];
fieldValue.push(value);
}
data.fieldValues.push(fieldValue);
}
this.createChart(data);
}
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._getChartDatasFromLayer
* @description 将请求回来的数据转换为图表所需的数据格式
* @private
* @param {Object} results - 图层数据要素信息
*/
_getChartDatasFromLayer(results) {
if (results.result.recordsets) {
let recordsets = results.result.recordsets[0];
let features = recordsets.features.features;
this.features = recordsets.features;
let data = {};
if (features.length) {
data = {
features: recordsets.features,
fieldCaptions: recordsets.fieldCaptions,
fieldTypes: recordsets.fieldTypes,
fieldValues: []
}
for (let m in data.fieldCaptions) {
let fieldValue = [];
for (let j in features) {
let feature = features[j];
let caption = data.fieldCaptions[m];
let value = feature.properties[caption];
fieldValue.push(value);
}
data.fieldValues.push(fieldValue);
}
this.createChart(data);
}
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._createChartOptions
* @description 创建图表所需参数
* @private
* @param {Object} data - 图表数据
*/
_createChartOptions(data) {
this.calculatedData = this._createChartDatas(data);
return this.updateChartOptions(this.chartType);
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype.changeType
* @description 改变图表类型
* @param {string} type - 图表类型
*/
changeType(type) {
if (type !== this.chartType) {
this.chartType = type;
return this.updateChartOptions(this.chartType);
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype.updateData
* @description 改变图表类型
* @param {string} url - 数据源地址
* @param {Object} queryInfo - 查询条件
* @param {Object} chartOption - X,Y字段信息
* @param {function} success - 成功回调函数
*/
updateData(url, queryInfo, chartOption, success) {
this.updateChart = success;
this.xField = [];
this.yField = [];
this._initXYField(chartOption);
this.datasets = {
url: url,
queryInfo: queryInfo
}
this.getDatasetInfo(this._updateDataSuccess.bind(this));
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._updateDataSuccess
* @description 改变图表类型
* @private
* @param {Object} data - 图表数据
*/
_updateDataSuccess(data) {
let options = this._createChartOptions(data);
this.updateChart(options);
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype.updateChartOptions
* @description 更新图表所需参数
* @param {string} type - 图表类型
* @param {Object} style - 图表样式
*/
updateChartOptions(type, style) {
if (this.calculatedData) {
let grid = this.grid;
let series = this._createChartSeries(this.calculatedData, type);
let datas = [];
for (let i in this.calculatedData.XData) {
datas.push({
value: this.calculatedData.XData[i].fieldsData
});
}
let xAxis = {
type: "category",
name: this.xField[0].name || "X",
data: datas,
nameTextStyle: {
color: '#fff',
fontSize: 14
},
splitLine: {
show: false
},
axisLine: {
lineStyle: {
color: '#eee'
}
}
}
let yAxis = {
type: "value",
name: this.yFieldName || "Y",
data: {},
nameTextStyle: {
color: '#fff',
fontSize: 14
},
splitLine: {
show: false
},
axisLine: {
lineStyle: {
color: '#eee'
}
}
}
let tooltip = {
formatter: '{b0}: {c0}'
};
let backgroundColor = '#404a59';
if (style) {
if (style.grid) {
grid = style.grid;
}
if (style.tooltip) {
tooltip = style.tooltip;
}
if (style.backgroundColor) {
backgroundColor = style.backgroundColor;
}
}
return {
backgroundColor: backgroundColor,
grid: grid,
series: series,
xAxis: xAxis,
yAxis: yAxis,
tooltip: tooltip
}
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._createChartDatas
* @description 构建图表数据
* @private
* @param {Object} data - 源数据
*/
_createChartDatas(data) {
let fieldIndex = 0, yfieldIndexs = [];
let fieldCaptions = data.fieldCaptions;
let me = this;
//X
fieldCaptions.forEach(function (field, index) {
if (me.xField[0] && field === me.xField[0].field) {
fieldIndex = index;
}
});
//Y
this.yFieldName = "";
this.yField.forEach(function (value, index) {
if (index !== 0) {
me.yFieldName = me.yFieldName + ",";
}
me.yFieldName = me.yFieldName + value.name;
fieldCaptions.forEach(function (field, index) {
if (field === value.field) {
yfieldIndexs.push(index);
}
});
})
let datas = this._getAttrData(data, fieldIndex);
let yDatas = [];
if (yfieldIndexs.length > 0) {
yfieldIndexs.forEach(function (yfieldIndex) {
let yData = [];
for (let i in data.fieldValues[yfieldIndex]) {
yData.push({
value: data.fieldValues[yfieldIndex][i]
});
}
yDatas.push(yData);
});
} else { //未指定Y字段时，y轴计数
let YData = [],
XData = [],
len = datas.length;
//计算X轴，Y轴数据，并去重
for (let i = 0; i < len; i++) {
let isSame = false;
for (let j = 0, leng = XData.length; j < leng; j++) {
if (datas[i].fieldsData === XData[j].fieldsData) {
YData[j].value++;
XData[j].recordIndexs.push(i);
isSame = true;
break;
}
}
if (!isSame) {
if (datas[i].fieldsData) {
XData.push({ fieldsData: datas[i].fieldsData, recordIndexs: [i] });
YData.push({ value: 1 });
}
}
}
datas = XData;
yDatas = [YData];
}
return {
XData: datas,
YData: yDatas
}
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._getAttrData
* @description 选中字段数据
* @private
* @param {Object} datacontent - 图表数据
* @param {number} index - 字段索引
*/
_getAttrData(datacontent, index) {
if (index === 0) {
this.xField = [{
field: datacontent.fieldCaptions[index],
name: datacontent.fieldCaptions[index]
}];
}
let fieldsDatas = [];
for (let i = 0, len = datacontent.fieldValues[index].length; i < len; i++) {
let value = datacontent.fieldValues[index][i];
fieldsDatas.push({
recordIndexs: i,
fieldsData: value
});
}
return fieldsDatas;
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._createChartSeries
* @description 图表数据
* @private
* @param {Object} calculatedData - 图表数据
* @param {string} chartType - 图表类型
*/
_createChartSeries(calculatedData, chartType) {
let series = [];
let yDatas = calculatedData.YData;
yDatas.forEach(function (yData) {
let value = 0;
let serieData = [];
for (let data of yData) {
value = data.value;
serieData.push({
value: value
});
}
let serie = {
type: chartType,
data: serieData,
name: "y"
};
series.push(serie);
});
return series;
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._isDate
* @description 判断是否为日期
* @private
* @param {string} data - 字符串
*/
_isDate(data) {
let reg = /((^((1[8-9]\d{2})|([2-9]\d{3}))([-\/\._])(10|12|0?[13578])([-\/\._])(3[01]|[12][0-9]|0?[1-9])$)|(^((1[8-9]\d{2})|([2-9]\d{3}))([-\/\._])(11|0?[469])([-\/\._])(30|[12][0-9]|0?[1-9])$)|(^((1[8-9]\d{2})|([2-9]\d{3}))([-\/\._])(0?2)([-\/\._])(2[0-8]|1[0-9]|0?[1-9])$)|(^([2468][048]00)([-\/\._])(0?2)([-\/\._])(29)$)|(^([3579][26]00)([-\/\._])(0?2)([-\/\._])(29)$)|(^([1][89][0][48])([-\/\._])(0?2)([-\/\._])(29)$)|(^([2-9][0-9][0][48])([-\/\._])(0?2)([-\/\._])(29)$)|(^([1][89][2468][048])([-\/\._])(0?2)([-\/\._])(29)$)|(^([2-9][0-9][2468][048])([-\/\._])(0?2)([-\/\._])(29)$)|(^([1][89][13579][26])([-\/\._])(0?2)([-\/\._])(29)$)|(^([2-9][0-9][13579][26])([-\/\._])(0?2)([-\/\._])(29)$))/ig;
return reg.test(data);
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._isNumber
* @description 判断是否为数值
* @private
* @param {string} data - 字符串
*/
_isNumber(data) {
let mdata = Number(data);
if (mdata === 0) {
return true;
}
return !isNaN(mdata);
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._getDataType
* @description 判断数据的类型
* @private
* @param {string} data - 字符串
*/
_getDataType(data) {
if (data !== null && data !== undefined && data !== '') {
if (this._isDate(data)) {
return "DATE";
}
if (this._isNumber(data)) {
return "NUMBER";
}
}
return "STRING";
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._checkUrl
* @description 检查url是否符合要求
* @private
* @param {string} url
*/
_checkUrl(url) {
let match;
if (url === '' || !this._isMatchUrl(url)) {
match = false;
} else if (/^http[s]?:\/\/localhost/.test(url) || /^http[s]?:\/\/127.0.0.1/.test(url)) {
//不是实际域名
match = false;
} else {
match = true;
}
return match;
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype._isMatchUrl
* @description 判断输入的地址是否符合地址格式
* @private
* @param {string} str - url
*/
_isMatchUrl(str) {
var reg = new RegExp('(https?|http|file|ftp)://[-A-Za-z0-9+&@#/%?=~_|!:,.;]+[-A-Za-z0-9+&@#/%=~_|]');
return reg.test(str);
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype.getStyle
* @description 获取图表样式。
*/
getStyle() {
let style = {
grid: this.grid,
tooltip: this.tooltip,
backgroundColor: this.backgroundColor
}
return style;
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype.getFeatures
* @description 获取地图服务，数据服务请求返回的数据。
*/
getFeatures() {
return this.features;
}
/**
* @function SuperMap.Widgets.ChartViewModel.prototype.setStyle
* @description 设置图表样式。
* @param {Object} style - 图表样式
*/
setStyle(style) {
return this.updateChartOptions(this.chartType, style);
}
}
SuperMap.Widgets.ChartViewModel = ChartViewModel;