diff --git a/test/grdimage/png_image.ps b/test/grdimage/png_image.ps new file mode 100644 index 00000000000..5aae62a553a Binary files /dev/null and b/test/grdimage/png_image.ps differ diff --git a/test/grdimage/png_image.sh b/test/grdimage/png_image.sh new file mode 100755 index 00000000000..ac454c397ba --- /dev/null +++ b/test/grdimage/png_image.sh @@ -0,0 +1,19 @@ +#!/usr/bin/env bash +# +# Testing gmt grdimage with a PNG + +gmt begin png_image ps + gmt grdmath -R0/5/0/5 -I1 -r X DUP UPPER DIV 255 MUL = r.grd + gmt grdmath Y DUP UPPER DIV 255 MUL = g.grd + gmt grdmath 5 X SUB 5 Y SUB MUL DUP UPPER DIV 255 MUL = b.grd + gmt grdmix r.grd g.grd b.grd -N -C -Grgb.png + # Lay down Cartesian image + gmt grdimage rgb.png -JX8c/0 -B0 + # Lay down Cartesian image + gmt grdimage rgb.png -JX-8c/-8c -B0 -X9c + # Pretend it is geographic + gmt grdimage rgb.png -JM8c -R0/30/35/65 -B0 -X-9c -Y10c + gmt grdimage rgb.png -Ei -B0 -X9c + rm -f ?.grd +gmt end show +