ArcObjects Library Reference  (Geometry)    

esriGeometryHitPartType Constants

Describes the parts of a geometry that can be located by their proximity to a query point. Specified as a parameter to the HitTest method.

Constant Value Description
esriGeometryPartNone 0 Not used.
esriGeometryPartVertex 1 Locates a vertex of the geometry closest to the query point.
esriGeometryPartBoundary 4 Locates a point anywhere on the boundary of a polygon, or anywhere on a polyline, that is closest to the query point.
esriGeometryPartMidpoint 8 Locates a midpoint of a segment belonging to a polygon or polyline that is closest to the query point.
esriGeometryPartCentroid 32 Locates the geometric centroid of a polygon or the center of an envelope closest to the query point.
esriGeometryPartEndpoint 16 Locates an endpoint of the polyline closest to the query point.

Product Availability

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