line offset:	3114.8914	3561.1044	3328.0338	2613.6405
line slope:	 986.6083	1293.3135	1528.9797	1278.8076
slope ratio:	   0.7629	   1.1956
subtract ped line offset:	-9988.8425	-6767.8748	-25439.2245	-18422.2716
subtract ped line slope:	 990.5834	1294.8709	1535.9496	1280.2917
slope ratio:	   0.7650	   1.1956
offset:	-9799.5905	-6689.6602	-25081.2855	-18342.5476
x a,b,c:	   0.1113	  -1.1084	   0.0431
y a,b,c:	   0.1140	   1.1851	   0.0608
fval:	   0.1941	   0.1335
x err:	   0.2708	   0.1524	   0.2239
y err:	   0.2442	   0.1924	   0.1505