[fpc-pascal] FP Vector graphics library

[Michael Van Canneyt]

On Tue, 26 May 2009, Felipe Monteiro de Carvalho wrote:

> Hello,
>
> I and another worker have developed a vector graphics library for Free
> Pascal and I am thinking about making it modifyed-LGPL and adding to
> the lazarus-ccr repository, like fpspreadsheet. So I was wondering,
> anyone interrested in it?
>
> At the moment it supports only reading PDF and only writing GCode for
> a CNC machine I am developing and also only lines and polylines (I
> will be adding curves in the next months), but the main structure is
> done and it is extensible for more formats and more geometrical
> figures and it's properties.
>
> Here is the kind of code that you can write with it:
>
>      Vec := TvVectorialDocument.Create;
>      try
>        Vec.ReadFromFile(dialogoAbrir.FileName, vfPDF);
>        Vec.WriteToStrings(memoCodigo.Lines, vfGCodeAvisoCNCPrototipoV5);
>      finally
>        Vec.Free;
>      end;
>
> Just 1 command to read a PDF, then the information is in the class and
> just another command to save the output to a file, or a TStrings or a
> TStream.
>
> Formats are added by adding units to the uses clause, so only
> necessary code is linked. Upon initialization they add themselves to a
> list of formats in the fpvectorial unit.

Shouldn't it be part of FPC's canvas/image support ?

Or does it depend on the LCL ? I imagine only actual drawing routines
depend on the LCL, in which case it can be split in a GUI-independent
part (reading/writing files) and a GUI dependent part, such as drawing 
code.

Michael.