Re: Simplified processing of image and rgbimage plots

[Daniel J S. <dan...@ie...>]

Ethan A Merritt wrote:

>>But does the PDF library support translation matrices?
> 
> 
> Yes. Exactly the same as PostScript:
> 
> void PDF_concat(PDF *p, double a, double b, double c, double d, double e, double f)
>   Concatenate a matrix to the current transformation matrix.
>   a, b, c, d, e, f Elements of a transformation matrix. 
>   The six values make up a matrix in the same way as in PostScript and PDF 
>   (see references). In order to avoid degenerate transformations, 
>   a*d must not be equal to b*c.

Ah!  I didn't see that:

http://us2.php.net/manual/en/function.pdf-concat.php

I was looking for something that might be part of an image command.

Dan