Complete SVM visualization quick How-To
1) Choose the kernel function.
2) Choose the preset (preset display is additive; you will need to Clear the plane between two different presets.)
Alternatively, you may enter positive and negative examples with the left and right mouse click respectively.
3) Enter kernel function parameters (The right panel suggets parameter values).
4) Click "Compute SVM".
Note that while the classifier is being computed, "Work in progress" appears at the bottom of the right panel.