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Re: New zoom code musings.
Jonas Diemer <diemer@...>
Fri, 6 Feb 2009 15:21:36 +0100
2009-02-06, 14:51:56 - Dick Hollenbeck:
> 1) I just tried a zoom factor like this and with my complex board the
> zone redraws were to slow, making this an unusable zoom factor for
> PCBNEW. Â (In fact the current zoom factor in eeschema head is closerto
> 1.2 and I have no objection to that because the redraw speed is fast
> enough.) Â As the redraw speed goes up, then the total time to zoom
> significantly is (redraw time x no. steps).
The slow zone redrawing during zoom is a problem per se. Even with the old
zoom factor, the zone redraw slowed down the zooming (although not to a point
where it becomes unusable).
Maybe the problem should be attacked from that angle: Reduce the redrawing
during zoom, i.e. don't do a complete redraw for every zoom step. There is
not really a point in continuing the drawing while the user has already given
another zoom command...
I haven't checked if/how this could be implemented, but maybe it isn't that