When changing the horizontal cross section of the chart that 1. Cross section happens to be a two-dimensional image. Parabolic shape 2. If a different perspective. Two-dimensional images to see the difference.
When you change the horizontal cutting across the image and you will see that 1. Image cut across it happen to be two-dimensional images. A parabola 2. If you use the different views. Two-dimensional images that will look differently.
When you change horizontal cross sectional shape as you can see that 1. Image across it happens to be a two-dimensional picture image of 2. If you use a different angle, the two-dimensional image will look different.