New answers tagged distance Intersection of two paths given
start points and bearings could be used. You would need to check
the resulting point to make sure it is between B and C. Since
there's no spheroid flattening, I'm not sure how close it would
match up with Vincenty's formula. Formula: d12 = 2.asin(
√(sin²(Δφ/2) + cos(φ1).cos(φ2).sin²(Δλ/2)) ) φ1 = acos( sin(φ2)
− ... If all you want are smaller polygons, you can use a
negative buffer (buffer tool with a negative buffer size). You
might want to combine the negative buffer with a simplification
depending on what you want to use the output for. If you have an
ArcInfo (or Advanced) license level the Near Analysis tool
should give you exactly what you need. It will add the ID of the
nearest feature to your input point feature class attribute
table, and a distance as well. FYI - The distance will be in the
units of your input data's projection. In Arc10.1 there are 3
tools that will complete this task: Near Near3d (3d analyst)
Generate Near Table Both Near