[Image-SIG] vector graphics Q

[Dmitry (Dima) Strakovsky]

Thanx Fredrik,

I'm slowly making my way through ElementTree code. It's definately an 
intersting direction and fun code to play with :)

Must admit that I am still struggling with OO code, but it is very 
helthy for me to get my head out of assembly mode every once in a while.

          thank you again,

                                                                   dima

-- 
<name>Dmitry (Dima) Strakovsky</name>
<email>dima at shiftingplanes.org</email>
<website>www.shiftingplanes.org</website>



Fredrik Lundh wrote:

>Dmitry (Dima) Strakovsky wrote:
>
>  
>
>>My question is perhaps related to Fredrik earlier post. I read API doc
>>(understood about 30%)
>>
>>I am basically looking for a way to manupulate vector graphics in
>>Python. So far I have been reading up on SVG and looking at the output
>>from Illustrator and Inkscape (Adobe seems to throw a whole bunch of
>>proprietary stuff into the files, surprise?not) The images for this
>>particular project are going to be generated in Illustrator (the program
>>I am most familiar with) and probably cleaned up with another utility
>>(possibly python script), after which I was going to do a fair amount of
>>manipulation (hopefully python script) and the final output goes to the
>>printer (rastered.)
>>
>>Fredrick does your lib work with SVG?
>>    
>>
>
>aggdraw and PIL only provide a small part of the full "graphics application"
>stack.  a full "stack" (e.g. Illustrator) might look like this:
>
>    1. a user interface
>    2. a data model that represents the drawing
>    3. an I/O library that can be used to store the drawing on disk
>    4. a rendering system
>
>in your case, you want to replace the user interface with scripts, so you
>need a "stack" that looks like this:
>
>    1. a script engine interface
>    2. a data model that represents the drawing
>    3. an I/O library that can be used to store the drawing on disk
>    4. a rendering system
>
>the aggdraw library provides a (somewhat limited) implementation of 4,
>and some support for 3 (it can parse SVG path descriptors), but nothing
>more than that.
>
>if aggdraw/PIL/Python is a realistic approach depends on what kind of
>drawings you will work on, and what you need to do it with them.  I've
>been using the following toolchain for a couple of projects:
>
>    1. draw in illustrator
>    2. if necessary, convert to outlines
>    3. save as SVG
>    4. load into element structure using ElementTree:
>            http://effbot.org/zone/element-index.htm
>    5. manipulate element structure
>    6. render relevant parts using aggdraw
>    7. save using PIL
>
>this is quite useful for simple drawings, such as icons and other symbols,
>but might need a lot of work if you want to support more illustrator/SVG
>features (and/or get rid of the second step).
>
></F>
>
>
>
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