|
Step one
:
skyAlign aligns models in
Wavefront obj format. To prepare such model for a specific image:
1.
Convert image to ppm format.
On Linux : >convert
image.jpg
image.ppm
On Windows : use PhotoShop with ppm plugin
2.
Then generate obj/mtl model from the converted image using one of
the two provided perl scripts in
skyAlign “data” folder.
>galimgobj.pl
imageModel
image.ppm 0.002
0.001
//syntax: generate.pl <obj name>
<texture file> <fov of image along L > <fov of image along B>
Or
>galimgobj2.pl
imageModel image.ppm 2.5
-1 -2.5 -1 2.5 -1 -2.5 1
//syntax: generate2.pl <obj name>
<texture file> <4 pairs of L, B at lower-left, lower-right,
upper-left, upper-right corners>
Step two
: After the
model is ready, you can pass it to
skyAlign either from command line:
·
On Linux
>skyAlign.linux
imageModel.obj
On Windows >skyAlign.exe
imageModel.obj
Or import the model
obj file through “File Control” dialog on skyAlign interface (see
“Controls” section for detail)
Step three:
Align the model in skyAlign. Refer to “Controls” section for detail.
Step four
:
Export aligned model through
“Alignment Control” dialog. The exported model is now properly
aligned against sky
coordinate chosen for visualization.
| 
