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Re: Apply a shapefile to raster images in IDL [message #41255]

Mon, 04 October 2004 15:38

envi35
Messages: 8
Registered: October 2004

Junior Member

Hi David,
Thank you very much for your reply. I've taken a quick look at Jim
Pendleton's code. you are right, as an IDL novice, I don't think I can
do it within the timeline. I guess I have to try something else, like
rasterize the shapefile in ENVI and then interpolate it to my raster
image grid...

Regards, Jenny

David Fanning <david@dfanning.com> wrote in message news:<MPG.1bcae028e3b99943989692@news.frii.com>...
> Jenny writes:
>
>> I'm a novice in IDL, not sure if my questions are totally improper. I
>> want to use an Arcview format shapefile as a mask, to a huge number of
>> raster images, which are in a polar stereographic grid format with
>> separate image data files and lat/lon files. I would really appreciate
>> if you could give me any hint about the following questions:
>>
>> 1. How to read the shapefile into an IDL variable?
>> 2. How to tailor the shapefile to my raster image grid?
>> 3. If the above questions are not proper or impossible in IDL, would
>> you give me some suggestions to do the work?
>
> It's not that it is impossible to do 1 and 2 in IDL, it
> certainly is possible. The problem is that it is impossible
> to tell a novice IDL user how to do it. :-(
>
> Here is a suggestion. Go to the RSI User Contribution site
> and search on "shapefile". There is a shapefile viewer there
> written my Jim Pendleton. I'd study that code a bit, and see if
> it doesn't at least go a little ways towards answering some
> of your questions.
>
> We need a good shapefile example somewhere. Does anyone
> have anything I could clean up a bit and make available
> on my web page?
>
> Cheers,
>
> David

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[Message index]

		Re: Apply a shapefile to raster images in IDL By: envi35 on Mon, 04 October 2004 15:38
		Re: Apply a shapefile to raster images in IDL By: Kelly Dean on Mon, 04 October 2004 13:17
		Re: Apply a shapefile to raster images in IDL By: David Fanning on Mon, 04 October 2004 04:21
		Re: Apply a shapefile to raster images in IDL By: Puneeth Shankar on Mon, 21 March 2016 00:37
		Re: Apply a shapefile to raster images in IDL By: envi35 on Tue, 05 October 2004 18:49

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