clip.m

来自「包含大量遗传算法程序」· M 代码 · 共 22 行

function in=clip(x,y,area)
%CLIP   Indicate which points lie outside the area.
%       CLIP(X,Y,AREA) returns a logical column vector the same
%       length as X with 1's for the (x,y) pairs which lie inside AREA.
%       X and Y are vectors
%       AREA is a four element vector [Xmin,Xmax,Ymin,Ymax]
%       See AXIS

%       Dr M.P. Ford 4th August 1987
% Copyright (c) 1987 by GEC Engineering Research Centre & Cambridge Control Ltd
%       MRN019

[m,n]=size(area);
if (min(m,n)~=1)|((m*n)~=4)
   error('The AREA vector has the wrong dimensions')
end
%  Now index points outside or on the borders
ix=(x>=area(1))&(x<=area(2));
iy=(y>=area(3))&(y<=area(4));
in=ix(:)&iy(:);