comp.lang.idl-pvwave archive: archive » Re: polyfill with transparent colors

Home » Public Forums » archive » Re: polyfill with transparent colors

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: polyfill with transparent colors [message #60795]

Fri, 13 June 2008 13:43

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

cgoethel@igpp.ucla.edu writes:

> I have a linear plot that I would like to draw a polygon on top of,
> but still be able to see the underlying plot. Currently, the polygon
> is drawn on top of the existing plot, but the color is not transparent
> so you cannot see the data that is below the polygon. I cannot draw
> the polygon first and then redraw the plot using oplot (the routine to
> draw the plot is not mine, complex, so can't be modified to use oplot
> rather than plot). Any suggestions?

Here is an article that describes the technique:

http://www.dfanning.com/code_tips/transpoly.html

Cheers,

David

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

Report message to a moderator

[Message index]

		Re: polyfill with transparent colors By: David Fanning on Fri, 13 June 2008 13:43
		Re: polyfill with transparent colors By: David Fanning on Fri, 13 June 2008 12:18
		Re: polyfill with transparent colors By: Mike[2] on Fri, 20 June 2008 08:42
		Re: polyfill with transparent colors By: Richard French on Thu, 26 June 2008 20:12

Previous Topic:	How to make the figure change automatically while I selected a new color table?
Next Topic:	The problem about the '.RESET_SESSION' command

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 03:12:13 PDT 2025

Total time taken to generate the page: 0.00618 seconds