[Geotiff] Is there an easy way to add a graticule and coastline to existing geotiffs?

[pw]

Cody Benkelman wrote:
> Peter
> 
> Are you seeking to add a vector layer into the raster GeoTIFF image, or
> "burn" a vector overlay into the GeoTIFF pixels, thus changing the
> brightness
> values of the image pixels underneath the vector lines?
> 
> I may be wrong, but in either case I believe the answer to your question
> is no.
> 
> In the former case, I don't believe GeoTIFF includes support for
> vector layers.  (If I'm wrong, I'm sure Frank or others will correct me!)
> 
> In the latter case, a GeoTIFF file could certainly support
> the newly created image, but I don't believe the OGR or GDAL utilities
> provide
> a tool to rasterize a vector layer and then merge the new pixels into the
> image raster.  Other applications DO provide that functionality, though, so
> if
> this is what you're seeking, let us know.
> 
> What format is your coastline vector data?
> 

Hello,

I want to rasterize line vectors and merge
them into the geotiff.

I can pretty much export/import vectors in any format.

GMT can do overlays like this, but then I end up
with postcript instead of geotiff.
What other applications do you suggest?
Are they scriptable?


Thanks,

Peter