[gdal-dev] satellite photo height data

2010-06-01 Thread
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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Re:Re: Re: [gdal-dev] satellite photo height data

2010-06-02 Thread
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"  写道:
Which file is that?


2010/6/2 甘肃。思远 

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 

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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[gdal-dev] the format of satellite picture

2010-07-29 Thread
I know that one of the the formats of satellite picture is geotiff(its 
extention is .tif ,and GDAL can read coordination from it ),could you tell me 
other formats? GDAL can read info from it?___
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[gdal-dev] .hgt

2010-08-12 Thread
I got a .hgt file,and do not know what is the format of it,and GDAL can read it?
Thk u .___
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