In 2D classification, is it possible to get the equation or centroid position of the separating line generated when using SVMTRAIN to train a classifier using Gaussian Radial Basis Function kernel

http://www.mathworks.com/matlabcentral/answers/101196-is-it-possible-to-get-the-equation-of-the-separating-line-generated-when-using-svmtrain-to-train-a-c

Same question with the upper one, but I am not using the linear kernel.

If it is impossible to get the equation, might it be possible to get the centroid position(mean position) of all the area in the separating line?