Question

在ArcGIs Engine 中Ipointcollection.querypoint() 谁知道他是做什么的，有什么用处

Answer 1

Ipointcollection.querypoints()
Copies some points to an existing array of points. This method is intended
for internal use only.
Queries a specified number (Count) of Points starting at the given index into an array of Points.

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你有些好的代码 发过来看看

Answer 2

Note: The output geometry must be co-created prior to the query. The output geometry is not co-created by the method; it is populated. This can be used in performance critical situations. For example, creating the geometry only once outside a loop and use the query method could improve performance.