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Bácsatyai László: Magyarországi vetületek - NymE GEO portál

Bácsatyai László: Magyarországi vetületek - NymE GEO portál

Bácsatyai László: Magyarországi vetületek - NymE GEO portál

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202<br />

Static Fok_Perc_Mp As String<br />

Rem *** Vetületi meridiánkonvergencia számítása ***<br />

R = 6378512.966<br />

Cotan_Fi_G_K = 0.929257344635727<br />

Rofok = 57.2957795130824<br />

X = Val(Text1.Text)<br />

Y = Val(Text2.Text)<br />

Ch = (Exp(X / R) + Exp(-X / R)) / 2<br />

Sh = (Exp(X / R) - Exp(-X / R)) / 2<br />

Sin_ = Sin(Y / R)<br />

Cos_ = Cos(Y / R)<br />

Tan_Mu = -(Ch * Sin_) / (Cotan_Fi_G_K + Sh * Cos_)<br />

Mu = Rofok * Atn(Tan_Mu)<br />

Elojel = Sgn(Mu) : Rem *** Fok átalakítása Fok-perc-másodperccé ***<br />

Perc = (Abs(Mu) - Int(Abs(Mu))) * 0.6<br />

Mp = (100 * Perc - Int(100 * Perc)) * 0.006<br />

Mp = Elojel * (Int(Abs(Mu)) + Int(100 * Perc) / 100 + Mp)<br />

Fok_Perc_Mp = Format$(Mp, "0.000000000")<br />

Text3.Text = "Mu = " + Fok_Perc_Mp<br />

End Sub<br />

________________________________<br />

2.3.4.2.-1.<br />

________________________________<br />

Private Sub Command2_Click()<br />

Rem *** A második irányredukció számítása az EOV-ben ***<br />

romperc = 206264.8<br />

R = 6379743.001<br />

m0 = 0.99993<br />

X1 = Val(Text1.Text)<br />

Y1 = Val(Text2.Text)<br />

X2 = Val(Text3.Text)<br />

Y2 = Val(Text4.Text)<br />

a = romperc / (2 * R ^ 2 * m0 ^ 2)<br />

b = romperc / (12 * R ^ 2 * m0 ^ 2)<br />

XK = (X1 + X2) / 2<br />

Delta12 = a * XK * (Y2 - Y1) - b * (X2 - X1) * (Y2 - Y1)<br />

Delta21 = -a * XK * (Y2 - Y1) - b * (X2 - X1) * (Y2 - Y1)<br />

Text5.Text = "a = " + Format$(a, "0.0000000000000000")<br />

Text6.Text = "b = " + Format$(b, "0.0000000000000000")<br />

Text7.Text = "Delta12 = " + Format$(Delta12, "0.000000") + " mp"<br />

Text8.Text = "Delta21 = " + Format$(Delta21, "0.000000") + " mp"<br />

End Sub

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