Exporting graphic over 30,000 pixels - is it possible?

Sorry! A little dyslexic this morning. PNG!

This is not possible with CGS. The internals only support up to 30,000 px in any direction.

Can I ask what you're doing that you require more than 30,000 px?

I'm creating a graphic interface for an audio plugin, controls for a virtual instrument, a sampled grand piano. Lua script handles a rotating knob by switching between various images of the knob at different rotations. A knob that travels 360 degrees, for instance, could have as many as 360 different images, each image rotated one degree more than the previous.

These 360 images are arranged in a long vertical strip, like movie film. As the user slides their cursor over the knob, the GUI responds by "playing' back" the filmstrip, switching from frame to frame, giving the appearance of fluid motion.

The problem is that I'm trying to create a big circular dial - 240 pixels! And I want 270 degrees of rotation - that would give me a "filmstrip" that's 54,000 pixels long! IF I only rotate the knob 1 degree per frame...

So, one way around it is to rotate the knob by greater intervals than 1 degree. For a dial that's 240 pixels, I could do a total of 111 frames before I hit that limit of 30,000 pixels. Which would probably provide smooth enough motion.

30.000 pixels is a limit for many of the most common file format, such as JPG, TIF, etc. Also Photoshop include the same limit (although you can save as PSB, an internal file format that can't be used on other programs), and most RIP and other software include the same limit. the most common workaround is to split the image on smaller parts