How Can I Draw A Multiple 3d-curves Picture By Python?

I want to draw two space curves in a same picture by Python. So, I use two Axes3D.plot to draw the curves. But the resulting picture just shows the last one. If I use Axes3D.scatte

Solution 1:

In your image, it looks like the blue line is there, but it's hidden behind the red line (you can see blue corners sticking out of the red circles). Try changing the data in the blue line and you should be able to see it.