[udig-devel] 3/2 How to render onto an Image using a Map

[Jesse Eichar]

Wow I just read my email it hardly makes sense... I think I'm tired  
right now... Please forgive me and feel free to ask questions if I'm  
not being clear (Its pretty


Ok I'm a little confused about the ie to jpeg comment.
How are you using my plugin?
Does it work for some formats but not PDF?  For example does PNG work  
but not PDF?

I may be mistaken but I think the background is always transparent,  
mind you how the PDF export handles that... I'm not sure.  I didn't  
think to consult the background color on the Map blackboard when  
exporting.... I definitely need to do that.  I've made a note of  
that.  I will try to do that tonight.  I'm going to make a release  
tomorrow so you can try that out.


Jesse

On 31-Oct-07, at 6:43 AM, Vince Darley wrote:

> The PDF export (i.e. to jpeg) gets the colours all wrong.  The  
> background seems to be a weird pink colour.  If I use  
> BufferedImage.TYPE_INT_RGB then the colours are mostly right, except  
> the background is black instead of white.  My attempts to use
>
> map 
> .getBlackboard 
> ().put(ProjectBlackboardConstants.MAP__BACKGROUND_COLOR, Color.WHITE);
>
> have had no effect on that.
>
> regards,
>
> Vince.
>
> At 17:17 24/10/2007, Jody Garnett wrote:
>> Vince Darley wrote:
>>> 3) I have a map with a bunch of layers shown.  I'd like to get a  
>>> renderer (using RenderManager?) which I can use to render an  
>>> arbitrary bounding box of those layers (not necessarily related to  
>>> the bounding box of the current view port of the map) to a  
>>> BufferedImage of arbitrary size which I can then use for other  
>>> purposes.  Can you fill me in on the basic way to achieve this?
>> Have a look at the PNG export; or PDF export community modules in  
>> Jesse's section of svn. Also the map print functionality does this  
>> sort of work in order to render the Map onto an image for the "Box"  
>> you can layout on the page.  Map is "just" a data structure so you  
>> will find some of these examples going about the rendering process  
>> with different assumptions (say speed vs. quality).
>>
>
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