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Re: how to make a map project in envi [message #64582 is a reply to message #64527]

Thu, 08 January 2009 07:29

Jean H.
Messages: 472
Registered: July 2006

Senior Member

stin.wang@gmail.com wrote:
> On 1锟斤拷8锟斤拷, 锟斤拷锟斤拷1时55锟斤拷, David Fanning <n...@dfanning.com> wrote:
>> stin.w...@gmail.com writes:
>>> i have there data( latitude,lontitude,and land surface temperature )
>>> how to make it into a envi file(*.img) with map project(albers)
>> Well, I think the easiest thing to do would be to make a
>> GeoTIFF image that you could easily read into ENVI. You will
>> have to project your data to create the projected image.
>> If you are familiar with the MAP_PROJ_*** routines, I would
>> use those. Otherwise, you might get away with MAP_PATCH.
>>
>> You can probably get a start on how to fill out the
>> GeoTiff structure (for this you *will* have to learn
>> how to use the MAP_PROJ_*** routines) by having a look
>> at this article, which uses an Albers map projection:
>>
>> http://www.dfanning.com/map_tips/tiffoverlay.html
>>
>> This process is not for the faint of heart, unless
>> someone knows an easier method in ENVI. (I which case,
>> I am all ears, too.)
>>
>> Cheers,
>>
>> David
>>
>> --
>> David Fanning, Ph.D.
>> Coyote's Guide to IDL Programming (www.dfanning.com)
>> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
>
> my data format is HDF5, in which latitude ,lontitude,and lst were
> consisted.
> i think there must be some easier way to get my work done,but before i
> get some idea about that , i will read your advice first.
> thanks for your help.

Hi,

not sure if it is exactly what you are looking for, but I found that
writing the header file (for envi files) directly is the easiest way..

Jean

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[Message index]

		how to make a map project in envi By: stin.wang on Wed, 07 January 2009 00:01
		Re: how to make a map project in envi By: jeffnettles4870 on Thu, 08 January 2009 11:59
		Re: how to make a map project in envi By: David Fanning on Thu, 08 January 2009 11:16
		Re: how to make a map project in envi By: Wasit.Weather on Thu, 08 January 2009 10:03
		Re: how to make a map project in envi By: David Fanning on Thu, 08 January 2009 07:58
		Re: how to make a map project in envi By: Jean H. on Thu, 08 January 2009 07:29
		Re: how to make a map project in envi By: stin.wang on Thu, 08 January 2009 07:08
		Re: how to make a map project in envi By: David Fanning on Wed, 07 January 2009 09:55

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