Opened 8 years ago

Closed 8 years ago

#6377 closed defect (fixed)

RPC DEM inverse transform failing at DEM boundary

Reported by: Even Rouault Owned by: Even Rouault
Priority: normal Milestone: 2.1.0
Component: Algorithms Version: unspecified
Severity: normal Keywords: rpc dem


When the reverse RPC DEM solver is invoked with a point whose (lon,lat) solution is close to the boundaries of the DEM, some initial guess might be outside of the DEM, which cause the process to fail. In that case, we can try to use the closest value at the boundary of the DEM as a best estimate to feed the iteration steps.

Change History (1)

comment:1 by Even Rouault, 8 years ago

Milestone: 2.1.0
Resolution: fixed
Status: newclosed

trunk r33520 "RPC DEM: improve inverse transformer to use the closest elevation value when the estimated solutions fall outside of the DEM (#6377). Also add CPLDebug() traces to better understand failures"

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