Has anyone used the ELLIPSE function in OIPI. The documentation indicates that you can give a starting arc and ending arc to print a 'pie wedge'.

Have tried many variations but always get the entire ellipse or circle.

TIA

Deirdre

Deirdre,

Fascinating.

I tried several variations on

stat=Set_Printer("ELLIPSE",1:@fm:1:@fm:3:@fm:3:@fm:0:@fm:n)

Sometimes there is a whole circle, sometimes nothing, and sometimes a wedge. Integers n = 9 a circle. And decimals sometimes produce wedges.

For fun (or hair-tearing frustration, or stupefying amazement) try the following wedge-producing examples:

stat=Set_Printer("ELLIPSE",1:@fm:1:@fm:3:@fm:3:@fm:0:@fm:"8.1") stat=Set_Printer("ELLIPSE",1:@fm:1:@fm:3:@fm:3:@fm:0:@fm:"8.2") stat=Set_Printer("ELLIPSE",1:@fm:1:@fm:3:@fm:3:@fm:0:@fm:"8.3") stat=Set_Printer("ELLIPSE",1:@fm:1:@fm:3:@fm:3:@fm:0:@fm:"7.1")

- Oystein -

Couldn't tear myself away.

Btw - I get arcs, not wedges.

Seems 8.1 (and also 7.1 and others) produces a 2/5 circle's worth of arc, 8.2 twice that, i.e a 4/5 circle, 8.3 yields yet another 2/5 circle, except it's modulo 1, i.e a 1/5 circle, 8.4 yet another 2/5, i.e a 3/5 circle, and 8.5 yet another 2/5, i.e a 5/5 or whole circle.

8.6, 8.7, etc repeats the system.

Draw lines between the end points of the arcs and you get a pentagram!

- Oystein -

Dear Oystein,

You made my day. Haven't had a good laugh like that for a while.

Hope you had fun as well.

(Now I am going to try your integers!)

Deirdre

Deirdre,

Had fun, although it was a little spooky with the end points "making" a pentagram.

Of course I should have used 666.1, 666.2, etc in my example, to make it even scarier.

But seriously - there must be something …uh… seriously wrong with how the arc parameteres are interpreted. Might be time for Tony Splaver and Revelation to step in.

- Oystein -

I will use your code and see what the progam is doing. Will get back to you with the results.

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