目的
從Excel的單元格中讀取數(shù)據(jù),根據(jù)Yaw、Roll、Pitch、世界坐標、A點,通過計算出偏移后的點A',最后將結果輸出在Excel的單元格中。
參考文章
在實現(xiàn)過程中,4*4矩陣計算參考了部分公式但是還是計算錯誤。后來看了Java的Matrix庫以及以下鏈接的文章,才算出正確的結果。
- 旋轉矩陣(Rotation Matrix)的推導 - 無名氏的文章 - 知乎
https://zhuanlan.zhihu.com/p/433389563

繞X軸

繞Y軸

繞Z軸
代碼實現(xiàn)
import xlwings as xw
import math
import numpy as np
def process_data(sheet, row_number):
# 讀取單元格數(shù)據(jù)
pitch_angle = sheet.range(f"A{row_number}").value
roll_angle = sheet.range(f"B{row_number}").value
avr_angle = sheet.range(f"C{row_number}").value
# 定位天線坐標
posX = sheet.range(f"E{row_number}").value # E
posY = sheet.range(f"D{row_number}").value # N
posZ = sheet.range(f"F{row_number}").value
# 需要計算的左點坐標
relativePtX_left = sheet.range(f"H{row_number}").value # E
relativePtY_left = sheet.range(f"G{row_number}").value # N
relativePtZ_left = sheet.range(f"I{row_number}").value
relativePtX_right = sheet.range(f"K{row_number}").value # E
relativePtY_right = sheet.range(f"J{row_number}").value # N
relativePtZ_right = sheet.range(f"L{row_number}").value
# 將角度轉換為弧度
avr_angle = math.radians(-(avr_angle - 90))
roll_angle = math.radians(roll_angle)
pitch_angle = math.radians(pitch_angle)
pt = np.zeros(3, dtype=float)
worldPos_left = np.array([relativePtX_left - posX, relativePtY_left - posY, relativePtZ_left - posZ, 1], dtype=float)
localPos_left = np.zeros(4, dtype=float)
worldPos_right = np.array([relativePtX_right - posX, relativePtY_right - posY, relativePtZ_right - posZ, 1], dtype=float)
localPos_right = np.zeros(4, dtype=float)
mat = np.identity(4, dtype=np.float32)
# print(worldPos)
# 創(chuàng)建旋轉矩陣
rotation_matrix_yaw = np.array([
[np.cos(avr_angle), np.sin(avr_angle), 0, 0],
[-np.sin(avr_angle), np.cos(avr_angle), 0, 0],
[0, 0, 1, 0],
[0, 0, 0, 1]
], dtype=np.float32)
rotation_matrix_roll = np.array([
[np.cos(roll_angle), 0, -np.sin(roll_angle), 0],
[0, 1, 0, 0],
[np.sin(roll_angle), 0, np.cos(roll_angle), 0],
[0, 0, 0, 1]
], dtype=np.float32)
rotation_matrix_pitch = np.array([
[1, 0, 0, 0],
[0, np.cos(pitch_angle), np.sin(pitch_angle), 0],
[0, -np.sin(pitch_angle), np.cos(pitch_angle), 0],
[0, 0, 0, 1]
], dtype=np.float32)
# 將旋轉矩陣應用到原始矩陣
mat = np.dot(rotation_matrix_yaw, mat)
mat = np.dot(rotation_matrix_roll, mat)
mat = np.dot(rotation_matrix_pitch, mat)
# 計算逆矩陣
invert = np.linalg.inv(mat)
# 計算本地坐標
localPos_left = np.dot(worldPos_left, invert)
localPos_right = np.dot(worldPos_right, invert)
# 提取結果
pt_left = localPos_left[:3]
pt_right = localPos_right[:3]
# 打印結果
# print("pt_left:", pt_left)
# print("pt_right:", pt_right)
# 將結果寫回Excel
sheet.range(f"M{row_number}").value = pt_left[0]
sheet.range(f"N{row_number}").value = pt_left[1]
sheet.range(f"O{row_number}").value = pt_left[2]
sheet.range(f"P{row_number}").value = pt_right[0]
sheet.range(f"Q{row_number}").value = pt_right[1]
sheet.range(f"R{row_number}").value = pt_right[2]
sheet.range(f"T{row_number}").value = pt_left[0] + posX # E
sheet.range(f"S{row_number}").value = pt_left[1] + posY # N
sheet.range(f"U{row_number}").value = pt_left[2] + posZ
sheet.range(f"W{row_number}").value = pt_right[0] + posX # E
sheet.range(f"V{row_number}").value = pt_right[1] + posY # N
sheet.range(f"X{row_number}").value = pt_right[2] + posZ
def main():
wb = xw.Book.caller()
sheet = wb.sheets[0]
# 遍歷處理多行數(shù)據(jù),從第2行到最后一行
current_row = 2
while sheet.range(f"A{current_row}").value:
process_data(sheet, current_row)
current_row += 1
# 保存并關閉工作簿
wb.save()
if __name__ == "__main__":
xw.Book("table.xlsm").set_mock_caller()
main()