1 #include "mplot.h"
2 int clipminx, clipminy, clipmaxx, clipmaxy;
sbox(double xx0,double yy0,double xx1,double yy1)3 void sbox(double xx0, double yy0, double xx1, double yy1){
4 int x0=SCX(xx0), y0=SCY(yy0), x1=SCX(xx1), y1=SCY(yy1);
5 int t;
6 if(x1<x0){ t=x0; x0=x1; x1=t; }
7 if(y1<y0){ t=y0; y0=y1; y1=t; }
8 if(x0<clipminx) x0=clipminx;
9 if(y0<clipminy) y0=clipminy;
10 if(x1>clipmaxx) x1=clipmaxx;
11 if(y1>clipmaxy) y1=clipmaxy;
12 if(x1<x0 || y1<y0) return;
13 m_clrwin(x0, y0, x1, y1, e1->backgr);
14 }
15