Class: AreaCalculate

AreaCalculate

面积计算类

L.kqmap.services.AreaCalculate(options, onsuccess, onfailed){Promise.<TResult>}

leaflet/services/AreaCalculate.js, line 18
Name Type Description
options Object

面积计算的配置参数

Name Type Description
url String

服务器的url地址
data GeoJSONObject

要计算面积或长度的图形对象， 必选项， 类型为 GeometryCollection 或 Polygon 等GeoJson对象
geoSRS String

图形的坐标所属的空间参考，必选项。
outSRS String

计算面积所使用的空间参考，必选项。
onsuccess function

查询成功后执行的函数
onfailed function

查询失败后执行的函数
Returns:
Type Description
Promise.<TResult>
Example
var onsuccess = (response) => {}
var onfailed = (error) => {}
var options = {}
options.url = service_ip + "/KQGis/rest/services/hsq4326";
options.data = '{"type":"Polygon","coordinates":[[[114.561665,30.490096],[114.561665,30.499563],[114.573338,30.499563],[114.573338,30.490096],[114.561665,30.490096]]]}';
options.geoSRS = 'EPSG:4326';
options.outSRS = 'EPSG:4326';
var query = new L.kqmap.services.AreaCalculate(options);
query.queryAsync(onsuccess, onfailed);

Extends

Methods

inherited queryAsync(onsuccess(), onfailed())

leaflet/services/QueryBase.js, line 48

查询请求，由子类实例化后调用。

Name Type Description
onsuccess() function

查询成功后处理函数。
onfailed() function

查询错误后处理函数。