Re: gEDA-user: Making circles in PCB

[Dave N6NZ <n6nz@xxxxxxxx>]

On Feb 25, 2010, at 10:45 AM, DJ Delorie wrote:

> 
> Everything in pcb supports non-90 arcs, except for the ability to
> create them.  Someone needs to come up with a friendly way to
> create/edit arcs that aren't 90 degrees, that's all.
FWIW QCad has 3 pimary arc creation modes:
1. click1 sets center, click2 sets radius, click3 sets end point 1, click4 sets end point 2
2. click1 sets endpoint 1, click2 sets a point on the arc, click3 sets end point 2
3. click 1 selects a point of tangency on a line, radius set by dialog, click 2 sets end point 2

One mode of elliptical arc creation:
click for center, click for axis 1/radius 1, click for axis2/radius 2, click for end point 1, click for end point 2.

Not that pcb needs to or should follow QCad, just posting the info for reference. The "center/radius/end1/end2" method seems pretty natural and if PCB did only that it would cover a lot of ground.

-dave
> 
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