相交
===============

1.描述
------------

计算输入要素的几何交集。所有图层和/或要素类中相叠置的要素或要素的各部分将被写入到输出要素类

2.使用限制
----------------

3.算子id
----------------
igis.gis.analysis.overlay.intersect

4.参数列表
---------------

+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
| 参数类型 | 参数名称          | 参数关键字     | 必要性 | 参数说明                                                                        | 数据类型 |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
| 输入参数 | url               | 数据源地址     | N      | 数据源地址 url与datasources 二选一                                              | String   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
|          | datasources       | 数据源         | N      | 数据源信息                                                                      | String   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
|          | inKeyDsMap        |                | N      | 标识要素类或图层。必须是面或与输入要素具有相同几何类型的要素                    | String   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
|          | in_features       | 待相交分析图层 | Y      | 待相交分析图层                                                                  | String   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
|          | join_attributes   | 连接属性       | N      | 确定将输入要素的哪些属性传递到输出要素类                                        | String   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
|          | cluster_tolerance | 容差           | N      | 所有要素坐标（节点和折点）之间的最小距离以及坐标可以沿 X 和/或 Y 方向移动的距离 | Double   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
|          | output_type       | 输出类型       | N      | 选择要查找的相交类型                                                            | String   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+
| 输出参数 | out_feature_class | 结果图层       | Y      | 所创建的要素类，并且结果将写入其中。                                            | String   |
+----------+-------------------+----------------+--------+---------------------------------------------------------------------------------+----------+


5.配置面板
--------------------
.. image:: ../../../_static/images/intersect_panel.jpg
   :width: 300px


6.调用示例
------------------
.. code::
  
    {
      "params": {
        "url":"kudu://172.20.20.15:7051/geomesa_spark",
        "in_features":"[hainan,hainan_select]",
        "join_attributes":"ALL",
        "cluster_tolerance":"0.001",
        "out_feature_class":"hainan_intersect"
      },
      "identifier":"igis.gis.analysis.overlay.intersect"
    }