line offset:	14959.3356	36064.2123	23524.4935	23432.5670
line slope:	 340.0924	 819.9003	 534.8166	 532.7267
slope ratio:	   0.4148	   1.0039
subtract ped line offset:	9973.6879	22694.3566	4444.9397	17175.7771
subtract ped line slope:	 226.7464	 515.9439	 101.0533	 390.4820
slope ratio:	   0.4395	   1.0039
offset:	4988.0403	9324.5009	-14634.6140	10918.9873
x a,b,c:	  -1.3541	   0.5876	   0.0178
y a,b,c:	  -5.5325	   0.4506	   0.0047
fval:	   0.9994	   0.9888
x err:	   0.1265	   0.0979	   0.0802
y err:	   0.0993	   0.0687	   0.0718