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# A.11 spotter: backtracking and hotspotting

This package contains the plate tectonic programs backtracker, which you can use to move geologic markers forward or backward in time, grdrotater which rotates entire grids using a finite rotation, hotspotter which generates CVA grids based on seamount locations and a set of absolute plate motion stage poles (grdspotter does the same using a bathymetry grid instead of seamount locations), originator, which associates seamounts with the most likely hotspot origins, and rotconverter which does various operations involving finite rotations on a sphere. The package is maintained by Paul Wessel.

Next: A.12 x2sys: track crossover Up: A. GMT supplemental packages Previous: A.10 sph: spherical triangulation Contents Index