Agg::trans_viewport

> 1/does the algorithm works only from0,0 to Frame_width,frame_height?

> Is there a-to define a "worldcoordinate system" different than the

> "Renderer coordinate System" (let ' s say rendering lines bounded between

> -100,-100 100,100 in a 100x100 buffer,without translating/rescaling all

> The coordinates of my lines).

> I ' ve found the Agg::conv_transform andagg::conv_curve classes. Is.

> The How to go?

It ' s done by Trans_viewport, seeagg_trans_viewport.h

Can use a separate converter:

Agg::trans_viewport VP;

. . .

Agg::conv_transform<your_pipeline_type,

AGG::TRANS_VIEWPORT>CONV_VP (Your_pipeline, VP);

Or you can add it to the Affinetransformer:

Agg::trans_viewport VP;

Agg::trans_affine affine;

. . .

...//Create affine matrix

...//Initialize viewport;

Affine *= vp.to_affine ();

Agg::conv_transform<your_pipeline_type>

Conv_trans (Your_pipeline, affine);

Agg::trans_viewport