How do you specify orthophoto width?

[nickponline]

How do you specify orthophoto size generated from exportOrthophoto(). I can only see how to specify resolution (dx, dy) and block size (blockw, blockh) in the API. How you you specify the final image size in pixels?

[BarryReid]

I would also like to know how to do this

[Alexey Pasumansky]

Unfortunately, max dimension parameter is not implemented in Python API, so it is necessary to calculate the dx, dy arguments for the .exportOrthophoto() operation according to the desired dimensions of the output image and the surface covered (max distance between mesh vertices along X and Y axis).

[BarryReid]

Do you have any sample code on how to calculate this?

I have a problem where the ortho is larger than 65500px and that can not be exported as it exceeds the jpg limit in size. I need to some how estimate how big the jpg is going to be and if bigger than 65500px then I need to reduce the size to within that number.

Thanks for any help.

[mcstieg]

Would be very interested too! 
Haven't found a hint on how to read the mesh vertices x,y,z values.

Edit: Found it. (.coord)