用简单伪随机数发生器实现随机中点位移分形（Matlab代码实现）

%% Random Midpoint Displacement Fractal
% Original: Solution to the Advanced Programming in Engineering Random Numbers assignment
steps       = 18;       % How many iterations to do
height      = 3e3;      % Height coefficient at start (meter)
roughness   = 0.76;     % Roughness
seed         = 9133759;  % randi(10^7);
tic;
F = rmdf( steps, height, roughness, seed );
toc
mapsize     = 1e4;      % Map size edge (meter)
rmdf_show( F, mapsize );