kicad-developers team mailing list archive

[Vesa Solonen <vsolonen@...>]

On Mon, 9 Mar 2009, jean-pierre charras - INPG wrote:

> > For background, how about dropping exactness in screen measures and always
> > fit the grid to even pixel count? Then wxBrush coud be used for drawing
> > and the would probably speed up alot compared to single pixel draw call.
> >
> > -Vesa
> The grid is a reference, so i think the dots positions must be exact.
> Perhaps creates a grid line in memory and using a blit function could be
> faster; (to do)

I meant zoom factor exactness, so that every grid increment is even in 
pixels. Otherwise blitting needs fractional calculation and rounding too 
for line position. It would be so nice if wx had same kind of drawing 
primitive buffers available like in OpenGL vertex arrays and vertex buffer 
objects.

It seems wxGC has something like that:
http://aspn.activestate.com/ASPN/Mail/Message/wxpython-users/3543798

-Vesa