Sprinkler Heads' Insertion Points Seem to be Slightly Offset From Each Other

Issue

When you place irrigation heads (such as rotary and rotor spray heads), you're noticing that the insertion point seems to vary for each block. While the main block is centered at 0,0, the block appears to shift around when you place it. As a result, the heads appear to be slightly out of line with each other when placed (as in the example below).

Cause

The head offset is calculated as a single tangent line, perpendicular to the chosen insertion point. As a result, the visual representation of each head's spray pattern can vary slightly when placed.

We have investigated having this logic instead look at both spray pattern lines. This setting is also not perfect, however. In fact, we've found that basing head placement on spray patterns would actually cause heads to be offset farther than they would otherwise.

We are well aware of this issue, and have included a solution on our wishlist.