力(向量)的合成
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畫出座標軸與標籤
Web VPython 3.2 # 匯入視覺化套件 from vpython import * #畫布 scene = canvas(center=vector(0.2, 0.5, 0.5), width=1000, height=1000, background=vector(0.5,0.6,0.5)) # x軸箭頭 x_axis = arrow(axis=vector(1, 0, 0), shaftwidth=0.01) # y軸箭頭 y_axis = arrow(axis=vector(0, 1, 0), shaftwidth=0.01) # z軸箭頭 z_axis = arrow(axis=vector(0, 0, 1), shaftwidth=0.01) # x軸標籤 label(pos=vector(1.1, 0, 0), text='x', box=False) # y軸標籤 label(pos=vector(0, 1.1, 0), text='y', box=False) # z軸標籤 label(pos=vector(0, 0, 1.1), text='z', box=False)執行結果
畫出向量及做加法運算
Web VPython 3.2 # 匯入視覺化套件 from vpython import * #畫布 scene = canvas(center=vector(0.2, 0.5, 0.5), width=600, height=600, background=vector(0.5,0.6,0.5)) # x軸箭頭 x_axis = arrow(axis=vector(1, 0, 0), shaftwidth=0.01) # y軸箭頭 y_axis = arrow(axis=vector(0, 1, 0), shaftwidth=0.01) # z軸箭頭 z_axis = arrow(axis=vector(0, 0, 1), shaftwidth=0.01) # x軸標籤 label(pos=vector(1.1, 0, 0), text='x', box=False) # y軸標籤 label(pos=vector(0, 1.1, 0), text='y', box=False) # z軸標籤 label(pos=vector(0, 0, 1.1), text='z', box=False) #畫出二個向量 vector1 = vector(1.5, 0.5, 0) arrow(axis=vector1, color=color.black, shaftwidth=0.02) vector2 = vector(-1, 1, 0) arrow(axis=vector2, color=color.black, shaftwidth=0.02) #向量加法運算 final_vector = vector1 + vector2 arrow(axis=final_vector, color=color.red, shaftwidth=0.02)執行結果
課堂作業
請在上面的向量中，加入文字標籤顯示向量值，如下圖：
提示：str(vector)可以將向量轉換成文字資料型態