圆曲线坐标计算公式是什么?

2025-03-10 12:45:16
推荐回答(1个)
回答1:

圆曲线中边桩坐标计算公式

注:L---所求点曲线长;F---所求点里程;H---圆曲线起点(ZY点桩号里程)
X=XZY+2×R×SIN(L÷2R)×COS{α±(L÷2R)}+S×COS{α±(L÷R)+M}
Y =YZY+2×R×SIN(L÷2R)×SIN{α±(L÷2R)}+S×SIN{α±(L÷R)+M}

α---线路方位角
M---所求边桩与路线的夹角
S---所求边桩至中桩的距离
"±"---曲线左偏取“-”右偏取“+”
当S=0时为中桩坐标

CASIO4500坐标计算程序 
HUANHEQUXIAN 
K"JD"D"LS":B=D2/24R:M=D/2-DB/10R 
T=M+tan.5A(R+B)▲L=∏RA/180+D▲E=(R+B)/cos.5A-R▲Z"ZH"=K-T▲H"HY"=Z+D▲Q"QZ"= Z+L/2▲J"YH"=Z+L-D▲O"HZ"J+D▲prog 1▲  N"N=1=>V":P:prog 3:L=W:Fixm 
Lb1 2:{S}:S"KX":S>J=>Goto4△S>H=>Goto3△U=S-Z:E=U-UXY5/40R2D2:F=UXY3/6RD:Goto5 
Lb1 3:U=90(2S-2H+D)/ ∏R:E=RsinU+M:F=R-RcosU+B:Goto5 
Lb1 4:F=O-S:D≠0=>I=30F2/∏RD△V=F-FXY3/90R2:N=1=>U=360-A:F=180-A+I: ≠=>U=A:F-180+A-I△E=T+TcosU+VcosF:F=TsinU+VsinF:Goto1 
Lb1 5:N=1=>F=-F△Lb1 1:X=E:Y=F:P=1=>prog2: prog4△: prog3:W=W-L:W<0=>W=W+360△V: "S"▲W: "R"▲Goto2 X=C+EcosL-FsinL▲Y=G+EsinL+FcosL▲ C"X0"G"Y0":Pol(X-C,Y-G):W<0=>W=W+360△W D≠0=>Q=>90U2/∏RD△Fixm:I=A-3I:N=1=>Q=-Q:U=-U:I=-I△ 
S<H=>F=L+Q≠=>S>J=>F=L+I: ≠=>F=L+U△△V=1: {E}:E"<B":F"R"=F+E:Lb1 6: {I}:I"SL":X+IcosF▲Y+IsinF▲V<2=>V=V+1:Goto6△ 
ZHI XIAN 
E"X0"F"Y0"A"R0"K"CZ":Lb1 1: {S}=S"KX":D=S-K:X=E+DcosA▲Y=F+DsinA▲V=1:Lb1 2: {BI}:H=A+B-180:I"SL":X+IcosH▲Y+IsinH▲V<2=>V=V+1:Goto2△Goto1 
计算要素: 
JD——交点里程 LS——缓和曲线长 
R ——圆曲线半径 A ——线路转角 
T ——切线长 L ——圆弧总长度 
E ——外矢距 N ——曲线方向,左偏取“1”,右偏取“0” 
P ——取“1” X0.Y0——ZH点坐标 
X.Y——交点坐标 KX——待求点里程 
B ——与中线夹角 SL——边距,左“+”;右“-”

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