You could do this in pure python, but this kind of thing is perfect for PLY.
On Dec 24, 2012 7:19 AM, "Kene Meniru" <[email protected]> wrote:
> Hello: I am writing a program that is made up of a collection of POV-Ray
> macros. POV-Ray is available at povray.org. It is a ray-tracing program
> that
> reads a scene description language (SDL) to create photo-realistic images.
> At this time my program (for modeling building information) is so huge that
> I am finding it difficult managing the macros and I am not even near
> completion.
>
> I am hoping to move this program but first I was considering creating a
> file
> format for input and am wondering the best way to approach this.
>
> Basically the user writes a text file using certain key words and numbers
> and my proposed python program will read this file and call the classes
> that
> will then work together to calculate the information that is needed to
> create an accurate model. The result of this calculation will be an output
> to another text file in the appropriate format such as POV-Ray SDL,
> OpenSCAD
> script, etc. This file output can then be rendered by the corresponding
> program to produce the actual 3D model. The macros I have now currently
> does
> this but like I said it is getting tedious and most importantly the fun
> factor is losing its strength for me.
>
> I have been advised to check out python-ply but I was wondering if the
> format is something I can do with ply or if I am better off using pure
> python. Also considering that the text files the proposed program will be
> parsing may get quite big, will there be any performance issues? The
> following is a sample of what the text file that will be processed by this
> proposed system will contain. I appreciate any pointers and suggestions.
> Thank you very much.
>
> ------------possible user file content for parsing ------------
> // In the following the python interface program reads
> //+ the contents of the file "other.file" as if its content
> //+ were located at this point.
> include other.file
>
> //In the following the python interface makes "snap_size" a
> //+ global parameter
> snap_size = 10
>
>
> // In the following "buildingLevel" is a class that is
> //+ called and passed the parameters in parenthesis.
> buildingLevel("FirstLevel", 3000)
>
> // In the following "snapOffset" is a class that is
> //+ called and passed the parameters in parenthesis.
> snapOffset("Closet-S1_r1", "Closet-S2_r3", <0,0,0>)
> ------------end of user file content
>
> It should also be possible to include comments using double-slashes, etc.
>
> Sincerely,
> Kene
>
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