conversion fig to svg TWO BUGS (for Inkscape)

I usually create plots in Matlab, convert them in svg and then open them in Inkscape.

I had two problems: When there is a continuous color coding in the plot, eg scatter plots scatter(x,y,15,probability) hb = colorbar; Color coding is not recognised and a random color is established for data points.

When there is a 3d plot (eg obtained with surf(X,Y,Z)), the svg plot is flattened in a 2D plot.

How can I have the original color coding and the 3D plots in the svg file?

Thanks a lot.