all files / services/ map.service.ts

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
126
127
128
129
130
131
132
133
134
135
136
137
138
1×
1×
1×
 
 
 
1×
 
1×
1×
1×
1×
1×
1×
1×
 
 
 
1×
1×
 
1×
 
 
 
1×
1×
 
1×
 
 
 
1×
 
 
 
 
 
 
 
 
 
 
 
1×
 
 
 
 
 
 
 
 
 
 
 
 
1×
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1×
 
 
 
1×
 
 
 
1×
 
 
 
 
 
 
1×
 
 
 
 
 
 
1×
 
 
 
 
 
 
 
 
 
 
 
 
1×
 
 
 
1×
 
 
 
1×
 
 
 
 
 
 
 
 
 
1×
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Rx';
import * as L from 'leaflet';
 
 
@Injectable()
export class MapService {
    private map;
    private basemaps: any = {};
    private overlays: any = {};
    private layerControlflag: Boolean = false;
    private layersInControlNumber: number = 0;
    private layerControlObject: any = {};
    private groupIdentifiers: Array<string> = [];
    private groupNames: Array<string> = [];
 
    constructor() { }
 
    public setMap(map) {
        this.map = map;
    }
    public getMap() {
        return this.map;
    }
 
    public setLayerControl(state) {
        this.layerControlflag = state;
    }
    public getLayerControl() {
        return this.layerControlflag;
    }
 
    public addBasemap(basemap, name) {
        if (name === '') {
            name = 'unknown layer';
        }
        if (this.basemaps[name] === undefined) {
            this.basemaps[name] = basemap;
        } else {
            name = this.getUniqueName(name);
            this.addBasemap(basemap, name)
        }
    }
 
    public getUniqueName(name) {
        let nameindex: number = 0;
        let newName: string = name;
        if (name.indexOf('(') !== -1) {
            nameindex = parseInt(name.split('(')[1].split(')')[0]);
            nameindex += 1;
            newName = name.split('(')[0];
        } else {
            nameindex = 1;
        }
        return name = newName + '(' + nameindex + ')';
    }
 
    public addOverlay(overlay, name: string, gId?: string) {
        if (this.groupIdentifiers.indexOf(gId) !== -1) {
            let index = this.groupIdentifiers.indexOf(gId);
            let existing_name: string = this.groupNames[index];
            this.overlays[existing_name] = overlay;
        } else {
            if (name === '') {
                name = 'unknown group';
            }
            if (this.overlays[name] === undefined) {
                this.groupNames.push(name);
                this.groupIdentifiers.push(gId);
                this.overlays[name] = overlay;
            } else {
                name = this.getUniqueName(name);
                if (this.groupNames.indexOf(name) === -1) {
                    this.groupNames.push(name);
                    this.groupIdentifiers.push(gId);
                } else {
                    this.addOverlay(overlay, name);
                }
            }
        }
 
        this.addControl();
    }
 
    public getBasemaps() {
        return this.basemaps;
    }
 
    public getOverlays() {
        return this.overlays;
    }
 
    public getObservableOverlays() {
        return Observable.create(observer => {
            observer.next(this.overlays);
            observer.complete();
        });
    }
 
    public getObservableBasemaps() {
        return Observable.create(observer => {
            observer.next(this.basemaps);
            observer.complete();
        });
    }
 
    public refreshOverlays(remove, add) {
        let overlays = this.getOverlays();
        for (var key in overlays) {
            if (overlays[key] instanceof Array) {
                overlays[key].forEach((element, index, arr) => {
                    if (element._leaflet_id == remove._leaflet_id) {
                        arr[index] = add;
                    }
                });
            }
        }
    }
 
    public increaseNumber() {
        this.layersInControlNumber += 1;
    }
 
    public getLayerNumber() {
        return this.layersInControlNumber;
    }
 
    public addControl() {
        if (this.layerControlflag) {
            let map = this.getMap();
            if (Object.keys(this.layerControlObject).length !== 0) {
                this.layerControlObject.getContainer().innerHTML = '';
                map.removeControl(this.layerControlObject);
            }
            this.layerControlObject = L.control.layers(this.getBasemaps(), this.getOverlays()).addTo(map);
        }
    }
}