forked from SuperMap/iClient-JavaScript
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathFindTSPPathsService.js
More file actions
125 lines (117 loc) · 4.98 KB
/
FindTSPPathsService.js
File metadata and controls
125 lines (117 loc) · 4.98 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
import SuperMap from '../SuperMap';
import NetworkAnalystServiceBase from './NetworkAnalystServiceBase';
import FindTSPPathsParameters from './FindTSPPathsParameters';
import GeoJSON from '../format/GeoJSON';
/**
* @class SuperMap.FindTSPPathsService
* @classdesc 旅行商分析服务类<br>
* 旅行商分析是路径分析的一种，它从起点开始（默认为用户指定的第一点）查找能够遍历所有途经点且花费最小的路径。
* 旅行商分析也可以指定到达的终点，这时查找从起点能够遍历所有途经点最后到达终点，且花费最小的路径。
* 该类负责将客户端指定的旅行商分析参数传递给服务端，并接收服务端返回的结果数据。
* 旅行商分析结果通过该类支持的事件的监听函数参数获取
* @extends SuperMap.NetworkAnalystServiceBase
* @example
* (start code)
* var myFindTSPPathsService = new SuperMap.FindTSPPathsService(url, {
* eventListeners: {
* "processCompleted": findTSPPathsCompleted,
* "processFailed": findTSPPathsError
* }
* });
* (end)
* @param url - {string} 网络分析服务地址。请求网络分析服务，URL应为：
* http://{服务器地址}:{服务端口号}/iserver/services/{网络分析服务名}/rest/networkanalyst/{网络数据集@数据源}；
* 例如:"http://localhost:8090/iserver/services/components-rest/rest/networkanalyst/RoadNet@Changchun"。
* @param options - {Object} 互服务时所需可选参数。如：<br>
* eventListeners - {Object} 需要被注册的监听器对象。
*/
export default class FindTSPPathsService extends NetworkAnalystServiceBase {
constructor(url, options) {
super(url, options);
}
/**
* @function SuperMap.FindTSPPathsService.prototype.destroy
* @override
*/
destroy() {
super.destroy();
}
/**
* @function SuperMap.FindTSPPathsService.prototype.processAsync
* @description 负责将客户端的查询参数传递到服务端。
* @param params - {SuperMap.FindTSPPathsParameters} 旅行商分析服务参数类
*/
processAsync(params) {
if (!params) {
return;
}
var me = this, jsonObject,
end = me.url.substr(me.url.length - 1, 1);
me.url = me.url + ((end === "/") ? "tsppath" : "/tsppath") + ".json?";
jsonObject = {
parameter: SuperMap.Util.toJSON(params.parameter),
endNodeAssigned: params.endNodeAssigned,
nodes: me.getNodesJson(params)
};
me.request({
method: "GET",
params: jsonObject,
scope: me,
success: me.serviceProcessCompleted,
failure: me.serviceProcessFailed
});
}
/**
* @function SuperMap.FindTSPPathsService.prototype.getNodesJson
* @description 将节点对象转化为JSON字符串。
* @param params - {SuperMap.FindTSPPathsParameters}
* @return {string} 转化后的JSON字符串。
*/
getNodesJson(params) {
var jsonParameters = "", nodesString, i, len, nodes;
if (params.isAnalyzeById === false) {
for (nodesString = "[", i = 0, nodes = params.nodes, len = nodes.length; i < len; i++) {
if (i > 0) nodesString += ",";
nodesString += '{"x":' + nodes[i].x + ',"y":' + nodes[i].y + '}';
}
nodesString += ']';
jsonParameters += nodesString;
} else if (params.isAnalyzeById == true) {
for (var nodeIDsString = "[", i = 0, nodes = params.nodes, len = nodes.length; i < len; i++) {
if (i > 0) nodeIDsString += ",";
nodeIDsString += nodes[i];
}
nodeIDsString += ']';
jsonParameters += nodeIDsString;
}
return jsonParameters;
}
/**
* @function SuperMap.FindTSPPathsService.prototype.toGeoJSONResult
* @description 将含有geometry的数据转换为geojson格式。
* @param result - {Object} 服务器返回的结果对象。
*/
toGeoJSONResult(result) {
if (!result || !result.tspPathList) {
return null;
}
var geoJSONFormat = new GeoJSON();
result.tspPathList.forEach(function (path) {
if (path.route) {
path.route = JSON.parse(geoJSONFormat.write(path.route));
}
if (path.pathGuideItems) {
path.pathGuideItems = JSON.parse(geoJSONFormat.write(path.pathGuideItems));
}
if (path.edgeFeatures) {
path.edgeFeatures = JSON.parse(geoJSONFormat.write(path.edgeFeatures));
}
if (path.nodeFeatures) {
path.nodeFeatures = JSON.parse(geoJSONFormat.write(path.nodeFeatures));
}
});
return result;
}
CLASS_NAME = "SuperMap.FindTSPPathsService"
}
SuperMap.FindTSPPathsService = FindTSPPathsService;