clear all;   close all ; 
% ::::::::::::::::::::::::::::::::::
data = dlmread('Dax_c_p_Verfall__Aug2015_.txt',' ',1,0);             %  Datei in : txt-format
% ::::::::::::::::::::::::::::::::::::::
lim = 41:101;                                                           % Limits Dax-Strike : 10000 bis 13000
Strike = data(lim,1)*1000;                                         % Dax - Basis - Kursniveau
puts = [data(lim,2)];
calls = [data(lim,3)];
Mtx = [puts, calls];
% ::::::::::::::::::::::::::::::::::::::::::::::::::::::::.
colormap(cool)
hc = bar3h(Strike,Mtx);
set(gca,'ZLim',[10000 13000] );
% :::::::::::::::::::::::::::::::::. new Z-Tick-Labels ::::::::::::::::
zTicks = get(gca, 'Ztick');                                            % get old ZTicks
ZLabs = zTicks(1):500: zTicks(end) ;                   % <<--  brauch 250 - Abstand
set(gca,'ZTicklabel', ZLabs', 'Fontweight', 'bold');
view(-90,66)