On the left side of the website there are some blocks. Feel free to click all of them to see which opportunities there are.
1.In the colored block you can choose what color your shape will be. e.g. here purple.
2.You can visualize your shape with or without a coordinate system.
3.Plus and minus help you to zoom in and out your shape.
4.If you want to see your shape from different perspectives, you can select which one and then click on the left button.
5.Last but not least. You can make a photo from your shape.