Question

标记点（注释表示“标记点”）的点是将3D绘图中的现有点旋转一个点。基本上我把所有点都移动了60度。出于某种原因，当移动点时，我有两个点重叠。我试过改变我的if语句，并且已经搞乱了他的索引，但还没有成功。我包含整个功能的唯一原因是你可以绘制并看到我遇到的问题。这里是;如果您有任何问题，请与我联系：

def transform_3d_trig(a,b,c):
        q=2*math.pi/(360)
        d=c*q
        a2 = a+b
        n = 12

        sin=math.sin
        cos=math.cos
        sqrt=math.sqrt
        x = []
        y = []
        z = []

        for i in range(n):
            if i <= 5:
                x.append(a*np.cos(q*(60*(i-1))))
                y.append(a*np.sin(q*(60*(i-1))))
                z.append(0)
            else:
                x.append(a2*np.cos(q*(60*(i-1))))
                y.append(a2*np.sin(q*(60*(i-1))))
                z.append(0)

        x_new = x #new lists
        y_new = y
        z_new = z
        for i in range(n):
            y_new[i] = y[i]*cos(d)
            z_new[i] = y_new[i]*np.tan(d)

        # plot points at this stage (before rotation); no overlapping points
        fig = plt.figure(figsize=(12,12))
        ax3 = fig.add_subplot(211, projection='3d')
        bond2 = [x_new[4],x_new[10],y_new[4],y_new[10],z_new[4],z_new[10]]
        ax3.plot(bond2[:2],bond2[2:4],bond2[4:6], color='r')
        ax3.scatter(x_new, y_new, z_new)
        ax3.set_xlabel('\nX')
        ax3.set_ylabel('\nY')
        ax3.set_zlabel('\nZ')

        x_dummy = x_new #dummy variables to not screw up list
        y_dummy = y_new
        for i in range(n): #marked spot
            if (i == 5 or i == 11):
                x_new[i] = x_dummy[i-5]
                y_new[i] = y_dummy[i-5]
            else:
                x_new[i] = x_dummy[i+1]
                y_new[i] = y_dummy[i+1]

            print(x_new[i], y_new[i]) #to track what point are overlapping

        # plot points at this stage (after rotation); overlapping points
        ax3 = fig.add_subplot(212, projection='3d')
        bond2 = [x_new[4],x_new[10],y_new[4],y_new[10],z_new[4],z_new[10]]
        ax3.plot(bond2[:2],bond2[2:4],bond2[4:6], color='r')
        ax3.scatter(x_new, y_new, z_new)
        ax3.set_xlabel('\nX')
        ax3.set_ylabel('\nY')
        ax3.set_zlabel('\nZ')
        plt.show()
        return x, y, z, x_new, y_new, z_new

Answer 1

问题可能是这些线条没有达到预期的效果：

x_dummy = x_new
y_dummy = y_new

他们不会创建数组的副本，只是复制引用。结果你实际上搞砸了＃39;修改_new＆＃39;版本时的原始_dummy数组因为它们是（引用）同一个对象。

要实现您正在寻找的行为（我假设），您需要强制实际复制数据：

x_dummy = x_new.copy()
y_dummy = y_new.copy()

在xy平面上旋转点时绘制点重叠

1 个答案: