The ‘classic’ style of psvelo has a nice option for specifying arrow width. For example, here is how I create a ‘fat’ arrow with a black outline all the way around it:
echo "0 0 1 0 0 0 0" |gmt psvelo -JX5i -Rg -W1p -L -Se3/0/1 -A0.15/0.8/0.2 -Gred > test_classic.ps gmt psconvert -A1p -Tf test_classic.ps open test_classic.pdf
I can’t find a way to do the same thing in ‘modern’ mode, because the GMT4-era options for -A ( −A Arrow_width/Head_length/Head_width) are no longer allowed. Now I must use the modern method that has no option for body width. I can control the head width/shape, but not the width of the main body except by making the outline pen thick (+p) - but then I lose the nice thin black outline and it just becomes a black arrow. But I figure it must be possible, somehow. How to fix this ‘modern’ code (below) to look like the classic case above?
gmt begin gmt figure test_modern pdf A1p echo "0 0 1 0 0 0 0" |gmt psvelo -JX5i -Rg -W1p -L -Se3/0/1 -A20p+e+gred+h0.5 gmt end open test_modern.pdf