Hello, 

I had built a gauge background and a needle.

I would like to obtain  a serie of pictures of my gauge with different angle of needle.

Causing from the first to the last picture a rotation of the needle.

I tried it by the use of a script from imagemagick catch from another forum.
without any success.

And I build my needle and my gauge background on the same canevas withe same center and proportion.

I don't understood why but the script cannot find the center of my image causing incorrect position of the needle on my gauge background.

Does exist a function in Inskape where we could do it , without the use of an external software like imagemagick ?

You can found with "autometer" the result a obtained wich is not researched.
Normally, my needle must be centered in the circle and rotating.

At finality,

I would like to obtain  somes exact copys with different angle of needle(up to 100).

And use these images in an oled display, causing a very realistic gauge.

If everybody could help me, 

Thanks a lot, in advance.

Here's my suggestion.