我有一个地理多边形,创建方式如下:
DECLARE @polyString as varchar(max);
SET @polyString = 'POLYGON((' + @eastAsString + ' ' + @northAsString +',' + @westAsString + ' ' + @northAsString + ',' + @westAsString + ' '+@southAsString +','+ @eastAsString + ' ' + @southAsString +',' +@eastAsString +' ' +@northAsString +'))';
DECLARE @g geography;
SET @g = geography::STPolyFromText(@polyString, 4326)
我想要找到多边形的中心点经纬度?这在sql server中是否可行?