批量轉換座標，定義類中的錯誤

Question

我想調整一個現有的腳本來啓用座標的​​批量轉換。

不過，我收到以下錯誤： NameError：名字「RDWGSConverter」沒有定義

我理解類應定義前期。但是如果我沒有錯過這件事情，應該是這樣嗎？

import urllib.parse 
from openpyxl import load_workbook, Workbook 


"""load datafile""" 
workbook = load_workbook('convertor.xlsx') 
worksheet = workbook.active 

Xco=[] 
Yco=[] 

Xco = [row[1].value for row in worksheet.iter_rows() ] 

Yco = [row[2].value for row in worksheet.iter_rows() ] 
coordinates = [(Xco), (Yco)] 

print(Xco[5]) 
print(range(len(Xco))) 
class RDWGSConverter: 
    for i in (range(len(Xco))): 
     X0  = Xco[i] 
     Y0  = Yco[i] 
     phi0 = 52.15517440 
     lam0 = 5.38720621 
     print(Xco[i]) 

     def fromRdToWgs(self, coords): 
      Kp = [0,2,0,2,0,2,1,4,2,4,1] 
      Kq = [1,0,2,1,3,2,0,0,3,1,1] 
      Kpq = [3235.65389,-32.58297,-0.24750,-0.84978,-0.06550,-0.01709,-0.00738,0.00530,-0.00039,0.00033,-0.00012] 

      Lp = [1,1,1,3,1,3,0,3,1,0,2,5] 
      Lq = [0,1,2,0,3,1,1,2,4,2,0,0] 
      Lpq = [5260.52916,105.94684,2.45656,-0.81885,0.05594,-0.05607,0.01199,-0.00256,0.00128,0.00022,-0.00022,0.00026] 

      dX = 1E-5 * (coords[0] - self.X0) 
      dY = 1E-5 * (coords[1] - self.Y0) 

      phi = 0 
      lam = 0 

      for k in range(len(Kpq)): 
       phi = phi + (Kpq[k] * dX**Kp[k] * dY**Kq[k]) 
      phi = self.phi0 + phi/3600 

      for l in range(len(Lpq)): 
       lam = lam + (Lpq[l] * dX**Lp[l] * dY**Lq[l]) 
      lam = self.lam0 + lam/3600 

      return [phi,lam] 

     def fromWgsToRd(self, coords): 

      Rp = [0,1,2,0,1,3,1,0,2] 
      Rq = [1,1,1,3,0,1,3,2,3] 
      Rpq = [190094.945,-11832.228,-114.221,-32.391,-0.705,-2.340,-0.608,-0.008,0.148] 

      Sp = [1,0,2,1,3,0,2,1,0,1] 
      Sq = [0,2,0,2,0,1,2,1,4,4] 
      Spq = [309056.544,3638.893,73.077,-157.984,59.788,0.433,-6.439,-0.032,0.092,-0.054] 

      dPhi = 0.36 * (coords[0] - self.phi0) 
      dLam = 0.36 * (coords[1] - self.lam0) 

      X = 0 
      Y = 0 

      for r in range(len(Rpq)): 
       X = X + (Rpq[r] * dPhi**Rp[r] * dLam**Rq[r]) 
      X = self.X0 + X 

      for s in range(len(Spq)): 
       Y = Y + (Spq[s] * dPhi**Sp[s] * dLam**Sq[s]) 
      Y = self.Y0 + Y 

      return [X,Y] 

    def main(): 
     # Rotterdam Centraal Station 
     coords = [91819, 437802] 
     conv = RDWGSConverter() 
     wgsCoords = conv.fromRdToWgs(coords) 
     newCoords = conv.fromWgsToRd(wgsCoords) 
     print(coords, newCoords, wgsCoords) 

    if __name__ == "__main__": 
     main() 

感謝您幫我發現這段代碼的結構有什麼問題！

Grts

Answer 1

它在我看來好像你的縮進是問題。

代碼發佈的方式def main()（以及調用它的行）是裏面的的定義是class RDWGSConverter。在完成定義類之前，您無法創建類的實例，這就是您收到錯誤的原因。但我不認爲這是你打算做的。

您還在循環內定義了fromRdToWgs和fromWgsToRd，這可能不是您的意思。

減少縮進

def main(): 

和

if __name__ == "__main__": 

同一級別的類定義，讓你定義類的拳頭，然後開始在功能上與main它的工作。

循環開始for i in (range(len(Xco))):也可能處於錯誤的級別，因爲您將它作爲類定義的一部分執行，我看不出爲什麼要這樣做。