Created
April 26, 2015 06:24
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Получаем массив координат здания по osm_id. Для конвертации xml в geojson используется https://github.com/tyrasd/osmtogeojson
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/** | |
* Меняем местами lat и lon в массиве координат | |
* @param {array} coords массив координат | |
* @return {array} обработанный массив координат | |
*/ | |
function swap_coords(coords) { | |
for (var i = coords.length - 1; i >= 0; i--) { | |
var first = coords[i][1]; | |
coords[i][1] = coords[i][0]; | |
coords[i][0] = first; | |
}; | |
return coords; | |
} | |
/** | |
* Получаем координаты здания по osm_id | |
* @param {int} osm_id | |
* @return {array} массив точек описывающих здание | |
*/ | |
function get_building_by_osmid(osm_id, callback) { | |
var building_arr; | |
jQuery.ajax({ | |
url: 'http://www.openstreetmap.org/api/0.6/way/'+osm_id+'/full', | |
type: 'GET', | |
dataType: 'xml', | |
data: {param1: 'value1'}, | |
success: function(data, textStatus, xhr) { | |
var geojson = osmtogeojson(data); | |
building_arr = swap_coords(geojson.features[0].geometry.coordinates[0]); | |
return building_arr; | |
}, | |
error: function(xhr, textStatus, errorThrown) { | |
alert('error'); | |
} | |
}); | |
} |
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