ArcGIS Js/Flex等前端API(Query(StatisticDefinition)时)针对SDE的SHAPE.AREA/SHAPE.LEN知道查询无效,而对GDB的SHAPE_Area/SHAPE_Length有效探索。
FIeld 'SHAPE.AREA' and 'SHAPE.LEN' of SDE For Oracle,Field 'SHAPE_Area' and 'SHAPE_Length' of gdb(geodatabase). The fields of GDB can be OK when QueryTask do query then outStatistics of query be setted.
require([
"esri/tasks/query", "esri/tasks/StatisticDefinition", ...
], function(Query, StatisticDefinition, ... ) {
var query = new Query();
var statisticDefinition = new StatisticDefinition();
statisticDefinition.statisticType = "sum";
statisticDefinition.onStatisticField = "SHAPE_Area";//SHAPE.AREA failed,
statisticDefinition.outStatisticFieldName = "TotalArea"; query.outStatistics = [statisticDefinition];
...
});
那么问题来了,每种关系数据库类型的几何针对面积和长度,我们做个分析:
类型 |
GDB(文件Geodatabase) |
Oracle |
PostgreSQL |
SqlServer |
面积 |
SHAPE_Area |
SHAPE.AREA |
Shape_Area |
SHAPE.STArea() |
长度 |
SHAPE_Length |
SHAPE.LEN |
Shape_Length |
SHAPE.STLength() |
几何 |
Geometry |
ST_GEOMETRY/ SDO_GEOMETRY |
简化Geometry(如box等) |
Geometry/ Geography |
针对ORACLE的图形计算面积长度字段采用SQL语法形式,用于普通SQL查询可以实现,如:【SHAPE.AREA>1000】;
GIS的API开发都会有针对SDE调用Oracle/SQLServer/PostgreSQL的SQL语句情况,笔者在Flex/JS开发时针对Query的outStatistics设置StatisticDefinition时,碰到给字段onStatisticField添加值时无法查询,查看最新API,下图:
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" alt="" />
JS的3系API为3.17,针对ArcGIS Server10.3部署服务,无【advancedQueryCapabilities】选项,而ArcGIS Online则有;4系API4.0目前与3系是2个不同序列,暂未详细研究,可能ArcGIS Server Portal支持。。
目前对此解决方法提议:对query的outStatistics不设置SHAPE.AREA字段,先做其他统计,需要面积的再做一次QueryTask条件查询。
ArcGIS Js/Flex等前端API(Query(StatisticDefinition)时)针对SDE的SHAPE.AREA/SHAPE.LEN知道查询无效,而对GDB的SHAPE_Area/SHAPE_Length有效探索。的更多相关文章
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