PanoTools mailing list archive

PanoTools NG: Re: equirectangular projection Santiago Ribas 2009-May-11 16:46:06

Luca,

Thanks. The third web site has an equation that includes the latitude
limitations, but I need to get into it, the variables explanation is to
short.

Regards

Santiago



On 09/05/11 15:23, "Luca N Vascon" <#removed#> wrote:

> http://wiki.panotools.org/Equirectangular
> http://en.wikipedia.org/wiki/Equirectangular_projection
> http://mathworld.wolfram.com/EquirectangularProjection.html
> 
> :-)
> I used a remapped sunpath picture on equirectangular, for same tasks and
> for solar-clock projects, restoration and studies...
> All calculation were made by the other people I work with.
> 
> Santiago Ribas ha scritto:
>> 
>> 
>> Sunpath gives me the sun coordinates (I already have). What I do need
>> is, to
>> convert those coordinates to a 2x1 equirectangular photo, and plot the sun
>> path. The azimuth is easy, but the height is not so linear.
>> 
>> Santiago
>> 
>> On 09/05/11 14:56, "Luca N Vascon" <#removed#
>> <mailto:vascon%40iuav.it&gt;> wrote:
>> 
>>> you can use sunpath...
>>> 
>>> Santiago ha scritto:
>>>> 
>>>> 
>>>> Hi all,
>>>> 
>>>> I would like to use my spherical panoramas to reproduce the sun path
>>>> in the sky, and to have a better evaluation of sun blocked by other
>>>> buildings, to optimize passive solar buildings.
>>>> I have a raw 8000x4000 photo, and I know the azimuth and height of the
>>>> sun during the day, and during the year, all I need is a formula to
>>>> convert my solar height (degrees) to equirectangular height in pixels.
>>>> 
>>>> Thanks for your help.
>>>> 
>>>> Santiago Ribas
>>>> www,360portugal.com
>>>> 
>>>> 
>>> 
>>> 
>>> ------------------------------------
>> 
>> 
> 
> 
> ------------------------------------




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