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Draw a circle enclosed to the other [message #90683]

Thu, 26 March 2015 05:33

g.nacarts
Messages: 148
Registered: November 2013

Senior Member

Hi

I wanted to create two circles where the one enclosed to the other and I found the circle function which creates circles. What I want is the green and yellow circle as shown in the following page.

https://www.idlcoyote.com/tips/make_circle.html

For some reason I copy paste the whole code
TVLCT, [255,0], [255,255], [0,0], 1
POLYFILL, CIRCLE(65, 65, 20), Color=1, /Device
PLOTS, CIRCLE(130, 130, 30), /Device
PLOTS, CIRCLE(195, 195, 20), /Device, Color=2
PLOTS, CIRCLE(195, 195, 10), /Device, Color=1

But I am ending up only with the white circle created by PLOTS, CIRCLE(130, 130, 30), /Device.

Can anyone help with this?

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Re: Draw a circle enclosed to the other [message #90684 is a reply to message #90683]

Thu, 26 March 2015 05:38

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

g.nacarts@gmail.com writes:

> I wanted to create two circles where the one enclosed to the other and I found the circle function which creates circles. What I want is the green and yellow circle as shown in the following page.
>
> https://www.idlcoyote.com/tips/make_circle.html
>
> For some reason I copy paste the whole code
> TVLCT, [255,0], [255,255], [0,0], 1
> POLYFILL, CIRCLE(65, 65, 20), Color=1, /Device
> PLOTS, CIRCLE(130, 130, 30), /Device
> PLOTS, CIRCLE(195, 195, 20), /Device, Color=2
> PLOTS, CIRCLE(195, 195, 10), /Device, Color=1
>
> But I am ending up only with the white circle created by PLOTS, CIRCLE(130, 130, 30), /Device.
>
> Can anyone help with this?

TVLCT, [255,0], [255,255], [0,0], 1
cgColorFill, CIRCLE(65, 65, 20), Color=1, /Device
cgPLOTS, CIRCLE(130, 130, 30), /Device
cgPLOTS, CIRCLE(195, 195, 20), /Device, Color=2
cgPLOTS, CIRCLE(195, 195, 10), /Device, Color=1

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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