I am working on a math-art animation in which a complicated object is changing and growing in the center of the scene. I want to animate the camera to follow a log spiral path that I've used a mirror modifier on to create a closed path that spirals out then back towards the object.
I'm using ADD:Curve:Curve Spirals:Logarithmic, then a mirror modifier. That works: I get what appears to be a single closed curve (it selects and shows in object and edit mode as one curve). But when I set up the camera to track on this curve the camera tracks correctly to the point where the original spiral connects to its mirror image, ignores the mirrored part, and jumps back in to the beginning of the original unmodified curve.I did the modifier part before any of the camera tracking part.
I'd like to know how to fix this manually for now, though ultimately I will add this piece to my python script that does most of the work in this project.
I've added some screen shots in both object mode and edit mode. In object mode the whole thing selects as one object but going into edit mode only the original spiral is highlighted and I can't seem to affect the mirrored half. Going into the object's curve tab Geometry panel I noticed that setting the bevel depth to non-zero bevels the whole thing. Thought this might be a clue to someone, though it just adds to my confusion.