comp.lang.idl-pvwave archive: archive » Semi-transparent filled contours with direct graphics

Home » Public Forums » archive » Semi-transparent filled contours with direct graphics

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

Re: Semi-transparent filled contours with direct graphics [message #90391 is a reply to message #90389]

Fri, 27 February 2015 12:06

geogal34
Messages: 6
Registered: August 2010

Junior Member

I've tried that, but I end up with things not being lined up and only part of the image. The images aren't the same size either. I've only had success getting the base image to display properly using map_patch and tvscl. I've been trying for 2 weeks.

On Friday, February 27, 2015 at 2:52:42 PM UTC-5, David Fanning wrote:
> geogal34 writes:
>
>> I have two HDF5 files of satellite data from different sensors. There's no trouble reading them in and mapping them separately, but I'd like to create a composite image with one as a semi-transparent layer. I've tried displaying the maps using MAP and CONTOUR and some of the cgimage/cgmap_set commands, but the images seem to only display properly using MAP_SET and TVSCL. I can easily draw contours (contour procedure) over the base image (visible imagery), but can't
> figure out a way to make the contours fill with any level of transparency. I know the CONTOUR function has transparency, but I haven't had luck displaying the base imagery properly so direct graphics seems to be the best option at the moment. I've done a lot of searching online and have still come up with nothing. Has anyone had any luck doing something like this with direct graphics?
>>
>
> I do this kind of thing all the time:
>
> http://www.idlcoyote.com/color_tips/color_overlay.php
>
> 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.")

Report message to a moderator

[Message index]

		Semi-transparent filled contours with direct graphics By: geogal34 on Fri, 27 February 2015 11:44
		Re: Semi-transparent filled contours with direct graphics By: David Fanning on Fri, 27 February 2015 11:52
		Re: Semi-transparent filled contours with direct graphics By: geogal34 on Fri, 27 February 2015 12:06
		Re: Semi-transparent filled contours with direct graphics By: David Fanning on Fri, 27 February 2015 12:10
		Re: Semi-transparent filled contours with direct graphics By: geogal34 on Wed, 04 March 2015 10:59
		Re: Semi-transparent filled contours with direct graphics By: David Fanning on Wed, 04 March 2015 11:04

Previous Topic:	EPS output from functional graphic 'LARGE' size
Next Topic:	VOMITEVOLE PEZZO DI MERDA PIER LUIGI BOSCHI DI BANCA ETRURIA ED AREZZO (OLTRE CHE MEGALAVA CASH MAFIOSO) SU INPUT DI VERMI BERLUSCORROTTI MARIA ELENA BOSCHI E MATTEO RENZI HA PASSATO INSIDER SU BANCHE POPOLARI A NAZIPORCO DAVIDE SERRA DI ALGEBRIS E..

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Oct 12 00:08:36 PDT 2025

Total time taken to generate the page: 0.79910 seconds