LogPlot.m

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class LogPlot {
    public: /* ( Static ) */

        static function handlep = nicesurf(handle h,matrix<double> X,matrix<double> Y,matrix<double> Z,varargin) {
            p = surf(h,X,Y,Z," FaceColor "," interp "," EdgeColor "," k ",varargin[:]);
        }
        static function handlep = nicesurfc(handle h,matrix<double> X,matrix<double> Y,matrix<double> Z,varargin) {
            p = surfc(h,X,Y,Z," FaceColor "," interp "," EdgeColor "," k ",varargin[:]);
        }
        static function handlep = logsurf(handle h,matrix<double> X,matrix<double> Y,matrix<double> Z,varargin) {

            /*  Create meshgrid if not already existing */
            if isvector(X) && isvector(Y)
                [X,Y] = meshgrid(X,Y);
            end
            iszero = Z == 0;
            Z(iszero) = .5*min(Z(:));
            Z = log10(Z);
            p = LogPlot.nicesurf(h,X,Y,Z,varargin[:]);
            LogPlot.postprocess(h);
        }
        static function handlep = logsurfc(handle h,matrix<double> X,matrix<double> Y,matrix<double> Z,varargin) {

            /*  Create meshgrid if not already existing */
            if isvector(X) && isvector(Y)
                [X,Y] = meshgrid(X,Y);
            end
            iszero = Z == 0;
            Z(iszero) = .5*min(Z(:));
            Z = log10(Z);
            p = LogPlot.nicesurfc(h,X,Y,Z,varargin[:]);
            LogPlot.postprocess(h);
        }
        static function handlep = logtrisurf(handle h,tri,rowvec<double> x,rowvec<double> y,rowvec<double> z,varargin) {
            z = log10(z);
            p = trisurf(tri, x, y, z," Parent ",h," FaceColor "," interp "," EdgeColor "," k ",varargin[:]);
            LogPlot.postprocess(h);
        }
        static function handlep = cleverPlot(handle ax,rowvec<double> x,rowvec<double> y,varargin) {
            if any(y(:)) < 0 || all(max(y)./min(y) < 50)
                pfun = @plot;
            else
                /*  As soon as one plot varies over more that two orders of magnitude,
                 * use log Y scale */
                set(ax," YScale "," log ");
                pfun = @semilogy;
            end
            p = pfun(ax,x,y,varargin[:]);
        }
    private: /* ( Static ) */

        static function  postprocess(h) {
            if all(strcmp(" auto ",[get(h," XLimMode "),get(h," YLimMode "),get(h," ZLimMode ")]))
                axis(h," tight ");
            end
            lbl = arrayfun(@(e)sprintf(" %1.1e ",e),10.^get(h," ZTick ")," Unif ",false);
            set(h," ZTickLabel ",lbl," ZTickMode "," manual ");
        }


};