The documentation includes examples of how to use the gt-render module
directly; including how to use it to write out a PNG file.
-http://docs.geotools.org/latest/userguide/library/render/gtrenderer.html#image
I have used the geotools rendering engine to draw under SWT before; the best
technique is to render into a buffered image with the ARGB byte order; and then
hijack that as the contents of your SWT Image (which you can then draw into the
correct location).
The existing gt-swt module should have similar code.
Can I ask if you will be contributing this as a patch to gt-swt module? This
email list is focused on improving the library.
--
Jody Garnett
On Tuesday, 19 June 2012 at 12:25 PM, ChenFred wrote:
> Hi there,
>
> I am new to GEOTOOLS library. i am asked to add an overview to gt-swt
> package. The overview is very similar to the Google Maps' overview, which is
> located in the bottom left corner. I am really appreciate if anybody can tell
> me how I can start this task with. Is there any material/documents describe
> this topic? It will be great if someone can provide some sample code, or even
> some pseudo code.
>
> thank you
> FredChen
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