[gdal-dev] the format of satellite photo file

[Chaitanya kumar CH]

Wei,

Can you give some explanation on what exactly you mean by 3D view. Is
it enough to show the elevations on a 2D image or do you want to
display a 3D with changeable perspective?

Elevation display on a 2D image is straight forward. 3D modelling is
more involved.

On Tue, Dec 29, 2009 at 8:19 AM, weixj2003ld <weixj2003ld at 163.com> wrote:
> Hi,Thank you for your answer in detail.
> I want to display the satellite photo file in 3D,what open source tool can
> do it,could you give me some advance?
> Kind regards.
> wei
>
>
> 在2009-12-29，"Chaitanya kumar CH" <chaitanya.ch at gmail.com> 写道：
>>Wei,
>>
>>On Tue, Dec 29, 2009 at 2:57 AM, weixj2003ld <weixj2003ld at 163.com> wrote:
>>> Hi,Thk u  for your answer.
>>> 1.I want to use GDAL to get information about a satellite photo file,such
>>> as
>>> x,y,z,and the value of each poiont,could GDAL do that?
>>
>>You can certainly use GDAL for this. Refer to
>> http://gdal.org/gdal_tutorial.html
>>
>>> 2.In gereral,the size of a satellite photo file is large(such as 100M),I
>>> want to display it in a 3D viewer,which tool can display it
>>> sooner,Openev?or
>>> other?
>>
>>GDAL is routinely used to read files larger than 100MB.
>>openev is a tool to view raster images in 2D. opevev uses GDAL for
>>retrieving raster data.
>>
>>Once you have everything working, you can tweak some stuff for a
>>performance boost.
>>
>>> Kind regards.
>>> Wei
>>>
>>>
>>> 在2009-12-28，"Chaitanya kumar CH" <chaitanya.ch at gmail.com> 写道：
>>>>Wei,
>>>>
>>>>2009/12/28 weixj2003ld <weixj2003ld at 163.com>:
>>>>> Hi,
>>>>> 1.I get a satellite photo file,and its extention is .tif，and how get
>>>>> the
>>>>> (x,y,z) and the value of each poiont?
>>>>tif is the extension for TIFF file format. You may be able to view the
>>>>file in a normal image viewer. But you should be able to to view the
>>>>coordinates and stuff in a geographic raster viewer like openev.
>>>>Google for more viewers.
>>>>
>>>>> 2.Could you tell me the article which introduces the format of
>>>>> satellite
>>>>> photo file in detail?
>>>>There is no specific format for satellite imagery. Your image is
>>>>probably a processed form of a satellite image.
>>>>
>>>>> 3.Is tif the only format of satellite photo file?
>>>>No. Refer to http://gdal.org/formats_list.html the list of raster
>>>>formats supported by GDAL.
>>>>
>>>>> Best regards.
>>>>> Wei
>>>>> _______________________________________________
>>>>> gdal-dev mailing list
>>>>> gdal-dev at lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>>>
>>>>
>>>>--
>>>>Best regards,
>>>>Chaitanya kumar CH.
>>>>/tʃaɪθənjə/ /kʊmɑr/
>>>>+91-9848167848
>>>>17.241582N 80.142635E
>>>
>>>
>>>
>>
>>
>>
>>--
>>Best regards,
>>Chaitanya kumar CH.
>>/tʃaɪθənjə/ /kʊmɑr/
>>+91-9848167848
>>17.241582N 80.142635E
>
>
>



-- 
Best regards,
Chaitanya kumar CH.
/tʃaɪθənjə/ /kʊmɑr/
+91-9848167848
17.241582N 80.142635E