Obj_trendbyangle – troubles setting a trend line and reading its coordinates (HELP)

Could anyone please help me draw a trend line of a specific angle and then read its coordinates?
I tried this and 1st of all it draws the line backwards instead of forwards and even so the coordinates (value by shift) returned are not correct

datetime lt=Time[100];
double l=Low[100];
ObjectCreate("test",OBJ_TRENDBYANGLE,0,lt,l);
ObjectSet("test",OBJPROP_ANGLE,30);
//ObjectSet("test",OBJPROP_TIME2,Time[0]); // places the line forwards

double i1=ObjectGetValueByShift("test",10);
Alert("1=",i1);
double i2=ObjectGetValueByShift("test",120);
Alert("2=",i2);
double i3=ObjectGetValueByShift("test",130);
Alert("3=",i3);