grdview – Create 3-D perspective image or surface mesh from a grid Synopsisgrdview relief_file parameters [ [p|s]parameters ] [ [cpt]] [ drapefile | grd_r,grd_g,grd_b ] [ intensfile|intensity ] [ -Jz|Zparameters ] [ -K ] [ level[+gfill] ] [ -O ] [ -P ] [ args[+m] ] [ west/east/south/north[/zmin/zmax][r] ] [ smooth ] [ [s][o[pen]] ]…
grdvector – Plot vector field from two component grids Synopsisgrdvector compx.nc compy.nc -Jparameters [ ] [ [p|s]parameters ] [ cpt ] [ fill ] [ [x]dx[/dy] ] [ ] [ ] [ ] [ ] [ parameters ] [ region ] [ [i|l]scale ] [ ] [ [just/dx/dy/][c|label] ] [ pen ] [ x_offset ]…
grdtrend – Fit trend surface to grids and compute residuals Synopsisgrdtrend grdfile n_model[r] [ diff.nc ] [ region ] [ trend.nc ] [ weight.nc ] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdtrend reads a 2-D grid file and fits a low-order polynomial trend to these data by [optionally…
grdtrack – Sample grids at specified (x,y) locations Synopsisgrdtrack [ xyfile ] grd1 grd2 … [ f|p|m|r|R[+l] ] [ length[u]/ds[spacing][+a] ] [dfile ] [ line[,line,…][+aaz][+d][+iinc[u]][+llength[u]][+nnp][+oaz][+rradius[u] ] [ ] [ region ] [ method/modifiers ] [ [radius[u]][+e|p]] [ [level] ] [ ] [ -b<binary> ] [ -d<nodata> ] [ -f<flags> ] [ -g<gaps> ] [ -h<headers>…
grdspotter – Create CVA image from a gravity or topography grid Synopsisgrdspotter [grdfile] rotfile CVAgrid increment region [ agegrid ] [ DIgrid ] [ IDgrid ] [ ] [ upper_age ] [ PAgrid ] [ IDinfo ] [ ] [ t|ufixed_val ] [ [ [level] ] [ n_try ]] [ -Zz_min[/z_max[/z_inc]] ] [ -r ]…
grdseamount – Compute synthetic seamount (Gaussian or cone, circular or elliptical) bathymetry Synopsisgrdseamount [ intable ] increment region [ [out/in] ] [ c|d|g|p ] [ [unit] ] [ ] [ [flattening] ] [ grdfile ] [ [cut] ] [ list ] [ norm ] [ bmode/qmode ] [ scale ] [ t0[u][/t1[u]/dt[u]|n][+l] ] [ level…
grdsample – Resample a grid onto a new lattice Synopsisgrdsample in_grdfile out_grdfile [ increment ] [ region ] [ ] [ [level] ] [ -f<flags> ] [ -n<flags> ] [ -r ] [ -x[[-]n] ] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdsample reads a grid file and interpolates…
grdrotater – Finite rotation reconstruction of geographic grid Synopsisgrdrotate ingrdfile rot_file|lon/lat/angle outgrdfile [ rotoutline ] [ polygonfile ] [ ] [ region ] [ ] [ ages ] [ [level] ] [ -b<binary> ] [ -d<nodata> ] [ -h<headers> ] [ -i<flags> ] [ -n<flags> ] [ -:[i|o] ] Note: No space is allowed between…
grdreformat – Converting between different grid file formats. Synopsisgrdreformat ingrdfile[=id[/scale/offset[/NaNvalue]]] outgrdfile[=id[/scale/offset[/NaNvalue]]] [ -N ] [ -Rwest/east/south/north[r] ] [ -f[i|o]colinfo ] [ -V ] Descriptiongrdreformat reads a grid file in one format and writes it out using another format. As an option the user may select a subset of the data to be written and to…
grdredpol – Compute the Continuous Reduction To the Pole, AKA differential RTP. Synopsisgrdredpol anom_grd rtp_grd [dec/dip] [ dec_grd/dipgrd] [ <m/n>] [ m|r] [ ] [ win_width] [ [level] ] [ year ] [ filtergrd ] [ [level] ] [ -n<flags> ] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdredpol…
grdraster – Extract subregion from a binary raster and save as a GMT grid Synopsisgrdraster [ filenumber | "text pattern" ] region [ grdfile ] [ increment ] [ parameters ] [ [level] ] [ -bo<binary> ] [ -do<nodata> ] [ -o<flags> ] Note: No space is allowed between the option flag and the associated…
grdproject – Forward and inverse map transformation of grids Synopsisgrdproject in_grdfile out_grdfile parameters [ [dx/dy] ] [ xinc[unit][=|+][/yinc[unit][=|+]] ] [ dpi ] [ [c|i|p|e|f|k|M|n|u] ] [ ] [ c|i|p ] [ region ] [ [level] ] [ -n<flags> ] [ -r ] Note: No space is allowed between the option flag and the associated arguments….
grdpmodeler – Evaluate a plate model on a geographic grid Synopsisgrdpmodeler agegrdfile rot_file -Sflags [ polygonfile ] [ outgrdfile ] [ age ] [ [level] ] [ -b<binary> ] [ -d<nodata> ] [ -h<headers> ] [ -i<flags> ] [ -:[i|o] ] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdpmodeler…
grdpaste – Join two grids along their common edge Synopsisgrdpaste file_a.nc file_b.nc outfile.nc [ [level] ] [ -f<flags> ] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdpaste will combine file_a.nc and file_b.nc into outfile.nc by pasting them together along their common edge. Files file_a.nc and file_b.nc must have the…
grdmath – Reverse Polish Notation (RPN) calculator for grids (element by element) Synopsisgrdmath [ min_area[/min_level/max_level][+ag|i|s |S][+r|l][ppercent] ] [ resolution[+] ] [ increment ] [ ] [ ] [ region ] [ [level] ] [ -bi<binary> ] [ -di<nodata> ] [ -f<flags> ] [ -h<headers> ] [ -i<flags> ] [ -n<flags> ] [ -r ] […
grdmask – Create mask grid from polygons or point coverage Synopsisgrdmask pathfiles mask_grd_file] increment region [ [m|p|x|y] ] [ [z|Z|p|P]values ] [ search_radius[unit] ] [ [level] ] [ -bi<binary> ] [ -di<nodata> ] [ -f<flags> ] [ -g<gaps> ] [ -h<headers> ] [ -i<flags> ] [ -r ] [ -x[[-]n] ] [ -:[i|o] ] Note:…
grdlandmask – "Create a ""wet-dry"" mask grid from shoreline data base" Synopsisgrdlandmask mask_grd_file xinc[unit][=|+][/yinc[unit][=|+]] west/east/south/north[r] [ min_area[/min_level/max_level][+ag|i|s |S][+r|l][ppercent] ] [ resolution[+] ] [ maskvalues[o] ] [ [level] ] [ -r ] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdlandmask reads the selected shoreline database and uses that information to…
grdinfo – Extract information from grids Synopsisgrdinfo grdfiles [ ] [ ] [ [dx[/dy]|r|b] ] [ [0|1|2] ] [ ] [ region ] [ [s]dz ] [ [level] ] [ -f<flags> ] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdinfo reads a 2-D binary grid file and reports metadata…
grdimage – Project grids or images and plot them on maps Synopsisgrdimage grd_z | grd_r grd_g grd_b [ out_img=driver ] [ cpt ] [ [r] ] [ i[|dpi] ] parameters [ [f|b]color ] [ intensfile|intensity ] [ z|-Zparameters ] [ ] [ ] [ ] [ ] [ ] [ ] [ west/east/south/north[/zmin/zmax][r] ] […
grdhisteq – Perform histogram equalization for a grid Synopsisgrdhisteq in_grdfile [ out_grdfile ] [ n_cells ] [ [file] ] [ [norm] ] [ ] region [level] Note: No space is allowed between the option flag and the associated arguments. Descriptiongrdhisteq allows the user to find the data values which divide a given grid file into…