-
Notifications
You must be signed in to change notification settings - Fork 165
/
query-map.test.js
154 lines (146 loc) · 5.88 KB
/
query-map.test.js
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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
var mapnik = require('mapnik');
var assert = require('assert');
describe('mapnik.queryPoint', function() {
it('should throw with invalid usage', function() {
var map = new mapnik.Map(256, 256);
map.loadSync('examples/stylesheet.xml');
map.zoomAll();
assert.throws(function() { map.queryPoint(); });
assert.throws(function() { map.queryPoint(0, 0, 0); });
assert.throws(function() { map.queryPoint(0, 0, {},0); });
assert.throws(function() { map.queryPoint(0, 0, 0, 0); });
});
it('should return a feature if geo coords are used', function(done) {
var map = new mapnik.Map(256, 256);
map.loadSync('examples/stylesheet.xml');
map.zoomAll();
map.queryPoint(-12957605.0331, 5518141.9452, {layer: 0}, function(err, results) {
assert.equal(results.length, 1);
var result = results[0];
assert.equal(result.layer, 'world');
var fs = result.featureset;
assert.ok(fs);
var feat = fs.next();
var expected = { AREA: 915896,
FIPS: 'US',
ISO2: 'US',
ISO3: 'USA',
LAT: 39.622,
LON: -98.606,
NAME: 'United States',
POP2005: 299846449,
REGION: 19,
SUBREGION: 21,
UN: 840 };
assert.deepEqual(feat.attributes(), expected);
// no more features
assert.ok(!fs.next());
done();
});
});
it('should return a feature if screen coords are used', function(done) {
var map = new mapnik.Map(256, 256);
map.loadSync('examples/stylesheet.xml');
map.zoomAll();
map.queryMapPoint(55, 130, {layer: 0}, function(err, results) {
assert.equal(results.length, 1);
var result = results[0];
assert.equal(result.layer, 'world');
var fs = result.featureset;
assert.ok(fs);
var feat = fs.next();
var expected = { AREA: 915896,
FIPS: 'US',
ISO2: 'US',
ISO3: 'USA',
LAT: 39.622,
LON: -98.606,
NAME: 'United States',
POP2005: 299846449,
REGION: 19,
SUBREGION: 21,
UN: 840 };
assert.deepEqual(feat.attributes(), expected);
// no more features
assert.ok(!fs.next());
done();
});
});
it('should return a feature if multiple layers are queried', function(done) {
var map = new mapnik.Map(256, 256);
map.loadSync('examples/stylesheet.xml');
map.zoomAll();
map.queryPoint(-12957605.0331, 5518141.9452, {/*will query all layers*/}, function(err, results) {
assert.equal(results.length, 1);
var result = results[0];
assert.equal(result.layer, 'world');
var fs = result.featureset;
assert.ok(fs);
var feat = fs.next();
var expected = { AREA: 915896,
FIPS: 'US',
ISO2: 'US',
ISO3: 'USA',
LAT: 39.622,
LON: -98.606,
NAME: 'United States',
POP2005: 299846449,
REGION: 19,
SUBREGION: 21,
UN: 840 };
assert.deepEqual(feat.attributes(), expected);
// no more features
assert.ok(!fs.next());
done();
});
});
it('should return a feature if multiple layers are queried', function(done) {
var map = new mapnik.Map(256, 256);
var layer = new mapnik.Layer('world');
layer.srs = map.srs;
var options = {
type: 'shape',
file: './examples/data/world_merc.shp'
};
layer.datasource = new mapnik.Datasource(options);
map.add_layer(layer);
var layer2 = new mapnik.Layer('world2');
layer2.srs = map.srs;
layer2.datasource = new mapnik.Datasource(options);
map.add_layer(layer2);
map.zoomAll();
map.queryPoint(-12957605.0331, 5518141.9452, {/*will query all layers*/}, function(err, results) {
assert.equal(results.length, 2);
// first layer hit
var result = results[0];
assert.equal(result.layer, 'world');
var fs = result.featureset;
assert.ok(fs);
var feat = fs.next();
var expected = { AREA: 915896,
FIPS: 'US',
ISO2: 'US',
ISO3: 'USA',
LAT: 39.622,
LON: -98.606,
NAME: 'United States',
POP2005: 299846449,
REGION: 19,
SUBREGION: 21,
UN: 840 };
assert.deepEqual(feat.attributes(), expected);
// no more features
assert.ok(!fs.next());
// second layer hit
result = results[1];
assert.equal(result.layer, 'world2');
fs = result.featureset;
assert.ok(fs);
feat = fs.next();
assert.deepEqual(feat.attributes(), expected);
// no more features
assert.ok(!fs.next());
done();
});
});
});