geogebra

How to draw a "blob" in Geogebra?

I would like to draw an arbitrary open set R on the xy-plane in R^3 as a sort of "blob", i.e. not anything with a particular shape. Does anyone have an idea of how?

Solution

  • You can use the Spline command to create a "blob" that goes through those points. In 2D it can be filled, in 3D you would have to approximate it by a polygon to fill it. The following command works well if your spline is called a.

    Polygon(Sequence(a(k),k,0,1,0.01))

    Please note that this is not a programing question and is better suited for GeoGebra help forum.