NAME xm_xsec - cross section format for the xmap8 program SYNOPSIS xm_xsec - Input File Format DESCRIPTION For providing XMap8 with a description of a set of cross sections. You can get xsec files loaded by using the -X xsec_file option FORMAT Files are free format with this input: lat1 lon1 lat2 lon2 dip min_depth max_depth front back where, lat1,lat2 = latitude, positive north lon1, lon2 = longitude, positive east point 1 (lat1,lon1) is the start of the cross section. dip is measured in degrees from vertical min_depth = starting depth of cross section max_depth = bottom depth of cross section front = width of swath (km) to the right of cross section if you are located at point 1 facing point 2. back = width of swath (km) to the left of cross section if you are located at point 1 facing point 2. (the swaths can have different front and back. This is mainly useful for dipping cross sections) Example file: 47.111675 -123.488739 46.294132 -121.185463 0.000000 0.000000 30.000000 8.541667 8.541667 45.976196 -122.987541 47.157093 -121.600945 0.000000 0.000000 30.000000 8.541667 8.541667 ----------------------------------------------------------------------------------------- lat1 lon1 lat2 lon2 dip min_depth max_depth front back SEE ALSO xmap8 xm_color xm_hypo xm_map xm_menu xm_origin xm_points xm_raster xm_station xm_well xm_wire xm_xsec xm_ellipse
REFERENCES see article by J. M. Lees: Lees, J. M. (1995) Xmap8: Three-dimensional GIS for geology and geophysics, Seismological Research Letters: 66, 33-37.
Prof. Jonathan M. Lees Yale Geology Dept. P.O. Box 208109 New Haven, CT 06520-8109 (203)432-6947 lees@love.geology.yale.edu