AutoLisp Vehicle Tracking
Purpose: Model swept path of vehicles in 2D.
Notes: Use "RunMe.cmd" to combine all necessary files to single "LoadQuickTurn.lsp"
Status:
First cut appears to be work - still needing full eval and qc
All you need to run is "LoadQuickTurn.lsp" unless you want to eval code. If so copy the entire project and use "RunMe.cmd"
Background:
QuickTurn breaks the path into a series of short straightline segments. For each straight line it calculates a new veehicle angle based on the previus angle (relative to the straight path segment). The straight line formulae is defined by that found on page 2052 of:
Mathematical and Computer Modelling Volume 49, Issues 9–10, May 2009, Pages 2049–2060 http://www.sciencedirect.com/science/article/pii/S0895717708003804
A second path is generated for the trailing vehicle based on the hitch point of the forward vehicle. This process is repeated for additional vehicles.