The following types are used for spatial operation functions within GlobalMapper. These types use fixed, numeric constants, which are defined here.
- globalmapper.GM_PredicateResultTargets_t8
Result targets for predicate results
- Values:
- GM_PredicateResult_CreateNewSelection = 0
Create new selection from matched features
- GM_PredicateResult_AddToSelection = 1
Add matched features to current selection
- GM_PredicateResult_RemoveFromSelection = 2
Remove matched features from current selection
- GM_PredicateResult_CreateNewLayer = 3
Clone matched features into a new layer
- GM_PredicateResult_ReturnFeatures = 4
Return matched via GM_FoundFeatureResults_t*
- GM_PredicateResult_InvertSelection = 5
Deselect matched features that are selected, and select those that aren’t
- globalmapper.GM_SpatialOperations_t8
Spatial operation types
- Values:
- GM_SpatialOps_Intersection = 0
Returns the spatial intersection of two layers
- GM_SpatialOps_Union = 1
Returns the the spatial union of two layers, or among features of a single layer
- GM_SpatialOps_Difference = 2
Returns the the spatial difference between two layers
- GM_SpatialOps_SymmetricDifference = 3
Returns the the spatial symmetric difference between two layers
- globalmapper.GM_SpatialOps_Errorhandling_t8
Flags specifying how to handle invalid input geometries
- Values:
- GM_SpatialOps_OnErrorHalt = 0
Halt further processing
- GM_SpatialOps_OnErrorSkip = 1
Skip invalid geometries
- GM_SpatialOps_OnErrorIgnore = 2
Use invalid geometries anyway
- globalmapper.GM_SpatialPredicates_t16
Spatial predicate types
- Values:
- GM_SpatialPredicates_Intersects = 1
Calculates the set of features that intersect features in another layer
- GM_SpatialPredicates_Overlaps = 2
Calculates the set of features that overlap features in another layer
- GM_SpatialPredicates_Touches = 4
Calculates the set of features that touch features in another layer
- GM_SpatialPredicates_Contains = 8
Calculates the set of features that wholly contain features in another layer
- GM_SpatialPredicates_IsEqual = 16
Calculates the set of features that have have an exact match with the geometry of a feature in another layer
- GM_SpatialPredicates_IsWithin = 32
Calculates the set of features that are wholly contained by a feature in another layer
- GM_SpatialPredicates_IsDisjoint = 64
Calculates the set of features that do not intersect features in another layer
- globalmapper.GM_SpatialTransforms_t16
Spatial transform types
- Values:
- GM_SpatialTransform_MBR = 1
Returns a bounding rectangle area feature for each grouping of a given layer
- GM_SpatialTransform_Center = 2
Returns a center point feature for each grouping of a given layer
- GM_SpatialTransform_ConvexHull = 3
Returns a convex hull area feature for each grouping of a given layer
- GM_SpatialTransform_ConcaveHull = 4
Returns a concave hull area feature for each grouping of a given layer
- GM_SpatialTransform_Buffer = 5
Returns a buffer area feature at a given distance from each grouping of a given layer
- GM_SpatialTransform_Centroid = 6
Returns a centroid point feature for each grouping of a given layer
- GM_SpatialTransform_Circle = 7
Returns a circle area feature for each grouping of a given layer
- globalmapper.GM_FeatureGrouping_t8
Feature grouping for spatial transforms
- Values:
- GM_GroupingNone = 0
No grouping; features are handled individually
- GM_GroupingPartition = 1
Group features by attribute matching
- GM_GroupingAll = 2
Include all features in a single group