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vector-tile.queryMany.test.js
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vector-tile.queryMany.test.js
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"use strict";
var test = require('tape');
var mapnik = require('../');
var path = require('path');
var fs = require('fs');
mapnik.register_datasource(path.join(mapnik.settings.paths.input_plugins,'geojson.input'));
var geojson = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[0,0],
[0.1,0.1],
[20,20],
[20.1,20.1]
]
},
"properties": {
"name": "A"
}
},
// This is an invalid polygon and results in a distance of -1
// from path_to_point_distance().
{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [[
[-20.2,-20.2],
[-20.1,-20.1],
[-20.3,-20.3],
[-20.4,-20.4],
[-20.2,-20.2]
]]
},
"properties": {
"name": "C"
}
},
{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[-40,-40],
[-40.1,-40.1],
[-60,-60],
[-60.1,-60.1]
]
},
"properties": {
"name": "B"
}
}
]
};
test('vtile.queryMany bad parameters fails', (assert) => {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify(geojson),"layer-name");
assert.throws(function() {
var manyResults = vtile.queryMany();
});
assert.throws(function() {
var manyResults = vtile.queryMany(null);
});
assert.throws(function() {
var manyResults = vtile.queryMany([1,2], {layer:"layer-name"});
});
assert.throws(function() {
var manyResults = vtile.queryMany([[1,'2']], {layer:"layer-name"});
});
assert.throws(function() { vtile.queryMany([[0,0],[0,0],[-40,-40]]);});
assert.throws(function() { vtile.queryMany([[0,0],[0,0],[-40,-40]], null);});
assert.throws(function() { vtile.queryMany([[0,0],[0,0],[-40,-40]], {tolerance:null});});
assert.throws(function() { vtile.queryMany([[0,0],[0,0],[-40,-40]], {fields:null});});
assert.throws(function() { vtile.queryMany([[0,0],[0,0],[-40,-40]], {layer:null});});
assert.throws(function() { vtile.queryMany([[0,0],[0,0],[-40,-40]], {layer:''});});
assert.throws(function() {
var manyResults = vtile.queryMany([[0,0],[0,0],[-40,-40]],{tolerance:1e9,fields:['name'],layer:'donkey'});
});
vtile.queryMany([[0,0],[0,0],[-40,-40]],{tolerance:1e9,fields:['name'],layer:'donkey'}, function(err, manyResults) {
assert.throws(function() { if (err) throw err; });
assert.end();
});
});
test('vtile.queryMany', (assert) => {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify(geojson),"layer-name");
var manyResults = vtile.queryMany([[0,0],[0,0],[-40,-40]],{tolerance:1e9,fields:['name'],layer:'layer-name'});
check(assert, manyResults);
assert.end();
});
test('vtile.queryMany with out fields', (assert) => {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify(geojson),"layer-name");
var manyResults = vtile.queryMany([[0,0],[0,0],[-40,-40]],{tolerance:1e9,layer:'layer-name'});
check(assert,manyResults);
assert.end();
});
test('vtile.queryMany async', (assert) => {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify(geojson),"layer-name");
vtile.queryMany([[0,0],[0,0],[-40,-40]],{tolerance:1e9,fields:['name'],layer:'layer-name'}, function(err, manyResults) {
assert.ifError(err);
check(assert, manyResults);
assert.end();
});
});
test('vtile.queryMany concurrent x4', (assert) => {
var remaining = 4;
function run() {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify(geojson),"layer-name");
vtile.queryMany([[0,0],[0,0],[-40,-40]],{tolerance:1e9,fields:['name'],layer:'layer-name'}, function(err, manyResults) {
assert.ifError(err);
check(assert, manyResults);
if (!--remaining) assert.end();
});
}
run();
run();
run();
run();
});
// Done outside of test so mocha doesn't time the vt load/parse.
var profile = new mapnik.VectorTile(0,0,0);
profile.setData(fs.readFileSync(path.join(__dirname, 'data', 'vector_tile', 'tile0.mvt')));
test('vtile.queryMany profile x10 runs', (assert) => {
var remaining = 10;
function run() {
profile.queryMany([
[-107.57812499999999,54.97761367069625],
[-106.171875,41.50857729743935],
[-73.125,2.1088986592431382],
[-68.5546875,7.710991655433229],
[-63.28125,-9.44906182688142],
[-65.390625,-15.961329081596634],
[-58.35937499999999,-21.616579336740593],
[-64.3359375,-34.30714385628803],
[-4.21875,17.308687886770034],
[4.921875,28.92163128242129],
[20.7421875,25.48295117535531],
[29.53125,26.43122806450644],
[11.6015625,50.736455137010665],
[1.0546875,46.800059446787316],
[-2.8125,39.63953756436671],
[-1.40625,52.482780222078205],
[10.1953125,61.60639637138628],
[62.22656249999999,47.98992166741417],
[103.35937499999999,38.272688535980976],
[138.1640625,36.03133177633187],
[131.484375,-19.642587534013032],
[112.8515625,-3.162455530237848],
[102.65625,17.308687886770034],
[95.625,20.3034175184893],
[75.234375,23.88583769986199],
[66.09375,27.68352808378776],
[56.25,33.137551192346145],
[44.29687499999999,26.43122806450644],
[28.4765625,12.897489183755905],
[6.6796875,9.102096738726456],
[24.609375,-3.864254615721396],
[18.984375,-14.264383087562637],
[17.9296875,-24.206889622398023],
[26.71875,-29.84064389983441]
],{tolerance:1000,fields:['AREA'],layer:'world'}, function(err, manyResults) {
assert.ifError(err);
assert.equal(manyResults.hits.length, 34);
assert.equal(manyResults.features.length, 33);
if (!--remaining) {
assert.end();
} else {
run();
}
});
}
run();
});
function check(assert, manyResults) {
assert.equal(Array.isArray(manyResults.hits), true);
assert.equal(manyResults.hits.length, 3);
assert.equal(manyResults.hits[0].length, 2);
assert.equal(Math.round(manyResults.hits[0][0].distance), 0);
assert.equal(manyResults.hits[0][0].feature_id, 0);
assert.equal(manyResults.hits[0][1].feature_id, 1);
assert.equal(manyResults.features[manyResults.hits[0][0].feature_id].attributes().name, 'A');
assert.equal(manyResults.features[manyResults.hits[0][1].feature_id].attributes().name, 'B');
assert.equal(manyResults.hits[1].length, 2);
assert.equal(Math.round(manyResults.hits[1][0].distance), 0);
assert.equal(manyResults.hits[1][0].feature_id, 0);
assert.equal(manyResults.hits[1][1].feature_id, 1);
assert.equal(manyResults.features[manyResults.hits[1][0].feature_id].attributes().name, 'A');
assert.equal(manyResults.features[manyResults.hits[1][1].feature_id].attributes().name, 'B');
assert.equal(manyResults.hits[2].length, 2);
assert.equal(Math.round(manyResults.hits[2][0].distance), 514);
assert.equal(Math.round(manyResults.hits[2][1].distance), 6595805);
assert.equal(manyResults.features[manyResults.hits[2][0].feature_id].attributes().name, 'B');
assert.equal(manyResults.features[manyResults.hits[2][1].feature_id].attributes().name, 'A');
assert.equal(Array.isArray(manyResults.features), true);
assert.equal(manyResults.features.length,2);
assert.equal(manyResults.features[0].id(),1);
assert.equal(manyResults.features[0].layer, 'layer-name');
assert.deepEqual(manyResults.features[0].attributes(), { name: 'A' });
assert.equal(manyResults.features[1].id(),3);
assert.equal(manyResults.features[1].layer, 'layer-name');
assert.deepEqual(manyResults.features[1].attributes(), { name: 'B' });
}
// describe('mapnik.VectorTile queryMany (distance <= tolerance)', function() {
test('LineString - no features', (assert) => {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify({
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [ [-180,85], [180,-85] ]
},
"properties": { "name": "A" }
}]
}),"data");
assert.equal(vtile.queryMany([[175,80]],{tolerance:1,fields:['name'],layer:'data'}).hits.length,0);
assert.end();
});
test('MultiPoint - no features', (assert) => {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify({
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"geometry": {
"type": "MultiPoint",
"coordinates": [ [-180,85], [180,-85] ]
},
"properties": { "name": "A" }
}]
}),"data");
assert.equal(vtile.queryMany([[175,80]],{tolerance:1,fields:['name'],layer:'data'}).hits.length,0);
assert.end();
});
test('Polygon - no features', (assert) => {
var vtile = new mapnik.VectorTile(0,0,0);
vtile.addGeoJSON(JSON.stringify({
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [ [ [-180,85], [180,-85], [-180,-85], [-180,85] ] ]
},
"properties": { "name": "A" }
}]
}),"data");
assert.equal(vtile.queryMany([[175,80]],{tolerance:1,fields:['name'],layer:'data'}).hits.length,0);
assert.end();
});