On 07/04/2015 01:49 AM, Pierre Guillot wrote:
> I can't find the screenshot atm, but you had a message box with the 
> selector "path" in it, followed by a series of numbers.
> What does that message do?
I don't really understand the question but I think this is my mistake, I didn't notice how the functions were displayed :

Yeah, the C code looks like a fairly typical 2d API.  I was just referring to what I saw in the screenshot, with message boxes
I assume you were using to draw a mustache on Mona Lisa in the running instace of Pd.  But I probably misunderstood what
you were doing.

The wrapper offers a layer structure called *t_elayer *that owns a set of
points.
First we create a layer for a t_ebox (GUI object) :
ebox_start_layer(t_ebox *x, t_symbol* name, float width, float height)

To create a path, you can use several functions :
egraphics_move_to(t_elayer *g, float x, float y), 
egraphics_line_to(t_elayer *g, floatx, float y), 
egraphics_curve_to(t_elayer*g, float ctrl1x, float ctrl1y, float ctrl2x, float ctrl2y, float endx, float endy),
ect...
The functions append points to the t_elayer.

Before drawing all the paths, we apply the matrix transformations and mark
the layer ready to be drawn :

Just curious-- in the features you mention translate and rotate, but not scale and skew.  Is there a reason for that?

-Jonathan