Is it possible to arbitrarily rotate a polygon in Eagle 4.1?

Karl Lautman wrote on Thu, 18 March 2010 15:44

once pasted I can't fine tune the position with move.  SUggestions?

HELP ROTATE

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Karl Lautman wrote:

I need to make 24 pours that are all the same, odd shape, but in different

places and arbitrary (i.e. not 90 deg.) orientations on my board.  It would

be nice if I could just draw the polygon once, then copy/paste/move/rotate

wherever I need it.  So far, though, I've only been able to

copy/paste/rotate (in 90 degree increments); once pasted I can't fine tune

the position with move.  SUggestions?

draw your polygon anywhere you like, then choose a reference point for

rotation and copying and place the mark there.

     mark (x y)

next select the polygon with the group command.

now you can rotate it using

     rotate Rxyz (R> 0 0)

where xyz is the angle, the > tells eagle to apply the command to the

actual group and the R denote mark-relative coordinates.

Now copy the polygon to the required position

     copy (R 0 0) (x y)

picking from the mark position and placing it at x, y absolute

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HTH

     Lorenz

Karl Lautman wrote:

>I need to make 24 pours that are all the same, odd shape, but in

different

>places and arbitrary (i.e. not 90 deg.) orientations on my board.  It

would

>be nice if I could just draw the polygon once, then

copy/paste/move/rotate

>wherever I need it.  So far, though, I've only been able to

>copy/paste/rotate (in 90 degree increments); once pasted I can't fine

tune

>the position with move.  SUggestions?

Lorenz replied:

draw your polygon anywhere you like, then choose a reference point for

rotation and copying and place the mark there.

mark (x y)

next select the polygon with the group command.

now you can rotate it using

rotate Rxyz (R> 0 0)

where xyz is the angle, the > tells eagle to apply the command to the

actual group and the R denote mark-relative coordinates.

Now copy the polygon to the required position

copy (R 0 0) (x y)

picking from the mark position and placing it at x, y absolute

Or you can do it freehand.

The trick is to make your grid or alt grid very fine. This will give you

fine control over the rotation.

1. Copy the polygon

1. Group that polygon

2. Select Rotate command

3. Left click and hold at your desired point of rotation on the new polygon

and drag out from the Polygon so it goes into skeletal view

4. Drag the mouse around to get the desired rotation.

I would appreciate it if you could tell us what you are using the polygons

for as I'm collecting examples of devices and applications that need custom

pads and copper shapes.

Warren