| Re: [IDL 6.2 with ENVI 4.2] is-it possible to extract multiple profiles on multiple images from shape files [message #67633] |
Thu, 20 August 2009 09:32 |
Jean H.
Messages: 472
Registered: July 2006
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Senior Member |
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yoann06 wrote:
> dear members,
>
> I am a new member of this group, I come from france, and I am a new
> user of IDL too.
>
> firstly, I would like to say hello to everyone, and thanks those who
> are going to help me.
> I have a problem with a program I try to make without any solution for
> me.
> I have 5 profiles in ".shape" format (that I can convert to .evf
> without any problem), and I have 16 images. what I want to do is to
> extract all the values along each profile in each images. I tried with
> the "PROFILE" function in IDL but I can't use the profil that I
> allready have in my possesion.
> my question is does anyone allready make this kind of task and if yes
> could you give to me some advises to reach my goal.
>
> thanks a lot
> best regards
> yoann
Hi,
If you want to do it by hand, follow this (from the help file):
Creating a Transect from Polyline Vectors
You can use polyline vectors from the Available Vectors List with the
Spatial Profile tool. Polygon and point vectors are not accepted. To
create a transect from vectors opened in ENVI, do the following.
In the Spatial Profile Tool, select Options → Create Transect from
Vector. The Import Vector Layers dialog appears. This dialog contains
the following items:
Select one or more vector layers to select them for import.
Click OK. ENVI converts the polylines individually into a transect. The
transects produce spatial profiles listed in the Extracted Profiles
section of the Spatial Profile Tool. The resulting spatial profiles
display individually in new plot windows.
Jean
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