within

Tests if geometry1 is within geometry2. Returns true if geometry1 lies in the interior of geometry2. The boundary and interior of the geometry1 is not allowed to intersect the exterior of the geometry2 and the geometry1 may not equal the geometry2.

This spatial relationship test is based on the Dimensionally Extended 9 Intersection Model (DE-9IM) developed by Clementini, et al., and is discussed further in the web pages: DE-9IM[https://en.wikipedia.org/wiki/DE-9IM] and https://developers.arcgis.com/documentation/mapping-apis-and-services/spatial-analysis/geometry-analysis/spatial-relationship/.

Supports true curves.