topic Set Solid Fill for Circle2 in Libraries & objects

Set Solid Fill for Circle2

derekjackson — Tue, 05 Jan 2010 17:03:41 GMT

Hi,
I'm having trouble specifying a solid fill for a simple 2D Circle script.

The code I'm using is:


PEN 1
SET FILL "Solid Fill"
CIRCLE2 0,0,0.03

Unfortunately all I get is the outline of the circle - I'm hoping for it to be filled black, but from what I can tell, the only way to achieve that is by using POLY2_B?

What am I doing wrong?

Thanks,

Derek

Re: Set Solid Fill for Circle2

Anonymous — Tue, 05 Jan 2010 17:13:51 GMT

Circle2 only draws the outline of the circle. You are correct in that you need to use POLY2_B command.

Try this


PEN outline_pen_parameter
FILL fill_type_parameter

POLY2_B 2, 3, fill_pen_parameter, fill_background_pen_parameter,
0, 0, 900,
.03, 360, 4001

Re: Set Solid Fill for Circle2

derekjackson — Tue, 05 Jan 2010 17:35:33 GMT

Thanks for that! Any chance you could quickly explain the 900 and 4001?

Cheers,

Derek

Re: Set Solid Fill for Circle2

Anonymous — Tue, 05 Jan 2010 17:44:25 GMT

Check out page 141 and onward in the GDL Reference Manual.

They are status codes, where 900 defines the centerpoint of a Circle. 4000 has 2 variations, one is an arc using a centerpoint (defined by 900) and angle, and the other is a full circle using a centerpoint and radius. The one used here is full circle. .03 deifnes the radius, 360 a full circle in degrees.