[gdal-dev] satellite photo height data

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The file contains the satellite photo height  data one area,in my case,it contains the areas of two case.


在2010-06-02 17:33:10，"Chaitanya kumar CH" <chaitanya.ch at gmail.com> 写道：
Which file is that?


2010/6/2 甘肃。思远 <weixj2003ld at 163.com>

Thk u for your answer.
Maybe I have not descript my question clearly.
I can not get the file(which is dem file?) of the the satellite photo height  in the following areas:

1. Latitude :   44.750373989-----44.879927098                   

    Longitude: 86.797943335------86.932148806

2.

Latitude   41d38'34''N ------41d50'12''N

Longitude 81d29'35''E------81d37'38''E

some one tell me some web address,but I do not know how to download it(my English is not good),could you download it for me and send it to me by e-mail.

thk u.


weixj2003ld,

First you have to locate the corner pixels corresponding to the lat/longs you indicated. Go through (http://www.gdal.org/ogr/osr_tutorial.html) to do that. Use "WGS84" system for lat/longs.

Use GDALRasterIO() (http://www.gdal.org/gdal_tutorial.html) to retrieve the pixels from the required area.


2010/6/2 甘肃。思远 <weixj2003ld at 163.com>

I want to get(download) the satellite photo height  data(maybe .img or dem,I think) of the two following areas,who help me?
 

1. Latitude :   44.750373989-----44.879927098                   

    Longitude: 86.797943335------86.932148806

2.

Latitude   41d38'34''N ------41d50'12''N

Longitude 81d29'35''E------81d37'38''E

Thank u in advances. 



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-- 
Best regards,
Chaitanya kumar CH.
/tʃaɪθənjə/ /kʊmɑr/ 
+91-9848167848
17.2416N 80.1426E



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-- 
Best regards,
Chaitanya kumar CH.
/tʃaɪθənjə/ /kʊmɑr/ 
+91-9848167848
17.2416N 80.1426E
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