Let me clarify with an incredibly long explanation…
I am creating an animation that follows a bad guy (let’s call him the target) by tracking his cell phone, using the various signal strengths (SNR) of nearby cell towers (CellID or CID) to triangulate the position. This “T-Hunting” is a somewhat inaccurate process, so I have a bit of wiggle built-in.
Since I am the God of this particular universe, I am determining the path of the target. In my animation, I use the Effect>Generate>Beam effect to draw a line from the cell tower to the target using a solid layer the size of the comp. In addition, I am using equations to determine the distance to the cell towers, changing the thickness and opacity.
Since this is supposedly a very sophisticated Satellite view, I want to be able to zoom in from a wide shot of Barcelona to a close up of the neighborhood. I have learned from past experience that creating a 10K (or more) pixel comp is render intense and crash prone. So I decided to make the comp the final size (Square Pixel PAL Widescreen), make the layers 3D and use a camera to zoom in. This allows for me to layer various scaled images on the same Z plane, yet of different scales, and be able to move closer to the layers without losing resolution. Mission accomplished as far as being able to zoom.
Here