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SpatialRelate

Updated
OperationParams_t.GM_SpatialOps.SpatialRelate Method

Two-layer relate predicate. This function is a general purpose predicate that implements the DE-9IM standard for specifying spatial predicates beyond the common 'named' predicates like 'equals', within', etc. See https://en.wikipedia.org/wiki/DE-9IM for more information. The aStr parameter must be a 9 character string containing 'T', 'F', or '*' characters as discussed in the Wikipedia article, denoting the desired spatial predicate.

Namespace:GlobalMapper
Assembly: GlobalMapperWrapperNET45 (in GlobalMapperWrapperNET45.dll) Version: 19.1.0.0 (19.1.0.0)

Syntax

C#
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public static GM_Error_t32 SpatialRelate(
                            GM_Layer_t aLayer1,
                            GM_Layer_t aLayer2,
                            GM_SpatialOps_Params_t aParams,
                            string aStr
            )

Parameters

aLayer1
Type:  GlobalMapper.Types . GM_Layer_t

IN: First layer in predicate

aLayer2
Type:  GlobalMapper.Types . GM_Layer_t
IN: Second layer in predicate

aParams

Type:  GlobalMapper . GM_SpatialOps_Params_t

IN: Parameters

aStr

Type:  System.String

IN: IN: the DE-9IM predicate string

 

Return Value

Type:  GM_Error_t32

A GM Error Code

See Also