ArcObjects Library Reference (Geometry)

IMAware Interface

Indicator interface that identifies geometric objects that can have persistent M values attached to their vertices.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Members

		Description
	DropMs	Sets all the M values to a non-valid number (NaN).
	MAware	Indicates whether or not the geometry is aware of and capable of handling Ms.
	MSimple	Indicates if all the Ms are valid numbers.

CoClasses that implement IMAware

CoClasses and Classes	Description
Envelope	A rectangle with sides parallel to a coordinate system defining the extent of another geometry; optionally has min and max measure, height and ID attributes.
MultiPatch	A collection of surface patches.
Multipoint	An ordered collection of points; optionally has measure, height and ID attributes.
Point	A two dimensional point, optionally with measure, height, and ID attributes.
Polygon	A collection of rings ordered by their containment relationship; optionally has measure, height and ID attributes.
Polyline	An ordered collection of paths; optionally has measure, height and ID attributes.
TriangleFan	A continuous 3D fan of triangles, where each triangle after the first shares an edge with the preceding triangle, and all triangles share a common pivot point.
Triangles	A collection of 3D triangles, where each consecutive triplet of vertices defines a new triangle
TriangleStrip	A continuous 3D strip of triangles, where each triangle after the first shares an edge with the preceding triangle.

Remarks

Controls whether or not the geometry object recognizes that it should use the M attributes when performing operations. Some methods using Ms require that an object is Aware of Ms before they can be called, others function regardless of MAwareness. IMAware also allows those Ms to be Dropped (reset to NaN). The M attribute is a measure that can be used similar to an address for determining position along a path. Simple Ms have non-NaN double values.

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