Please clarify where you want the lines drawn. You do not say specifically in advance and it is hard to know from you examples.
In general, you will need to include the line drawing in parenthesis with the processing of the image over which you want it, unless the lines are to be drawn over the composited result. So do you want the lines only over the background over which you want to overlay the other image, or do you want the lines drawn on the overlay which is then put over the background, or do you want the overlay image overlaid over the background and then add the lines over the composite? Each one would require a different command line. >ImageMagick is definitely less confusing than it >used to be, but the order of options still matters. > >>From Anthony's helpful description of how it works, I >assumed that one can create a canvas and then place various >objects on the canvas. In doing this, the objects would be >layered in the order they appear within the command and >then finally merged at the end with say -flatten. > >The following command creates a canvas, overlays a smaller area, >then draws two lines. But it appears the lines are applied >not only to the original canvas, they are also applied to the >overlaid area. > >convert -size 1500x1500 xc:white \ > \( -size 1000x500 xc:lightblue -repage 0x0+0+950 \) \ > -stroke black -linewidth 5 \ > -draw 'line 1499,50 50,50' \ > -draw 'line 50,50 50,950' \ > -flatten A.gif > >If the option overlaying the smaller area is shifted >to after the -draw options as below, then the two lines appear >as intended. > >convert -size 1500x1500 xc:white \ > -stroke black -linewidth 5 \ > -draw 'line 1499,50 50,50' \ > -draw 'line 50,50 50,950' \ > \( -size 1000x500 xc:lightblue -repage 0x0+0+950 \) \ > -flatten B.gif > >The above is the reduction of a complex command involving >multiple image overlays, multiple lines and multiple annotations. >It took considerable time to discover why unwanted lines >mysteriously appeared - sometimes in colors different from >those originally specified. > _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
