转换成C代码 IFDABSALX2-ALX1GEEPSORDABSXX3-XX2GEEPS THEN IFDABSALX2-ALX1LTEPSANDDABSXX3-XX2GEEPS THEN AK23=YY3-YY2XX3-XX2 B23=YY2-AK23XX2 XX21=ALX1

if(fabs(ALX2-ALX1)>=EPS || fabs(XX[2]-XX[1])>=EPS) { if(fabs(ALX2-ALX1)<EPS && fabs(XX[2]-XX[1])>=EPS) { AK23=(YY[2]-YY[1])/(XX[2]-XX[1]); B23=YY[1]-AK23XX[1]; XX21=ALX1; YY21=AK23XX21+B23; VALUE1=(YY21-YY[2])(YY21-YY[1]); VALUE2=(YY21-ALY1)(YY21-ALY2); VALUE3=(XX21-XX[2])(XX21-XX[1]); if(VALUE1<=0 && VALUE2<=0 && VALUE3<=0) { BBX=XX21; BBY=YY21; } } if(fabs(ALX2-ALX1)>=EPS && fabs(XX[2]-XX[1])<EPS) { AK=(ALY2-ALY1)/(ALX2-ALX1); BB=ALY1-AKALX1; XX22=XX[1]; YY22=AKXX22+BB; VALUE1=(YY22-YY[2])(YY22-YY[1]); VALUE2=(YY22-ALY1)(YY22-ALY2); VALUE3=(XX22-ALX1)(XX22-ALX2); if(VALUE1<=0 && VALUE2<=0 && VALUE3<=0) { BBX=XX22; BBY=YY22; } } if(fabs(ALX2-ALX1)>=EPS && fabs(XX[2]-XX[1])>=EPS) { AK23=(YY[2]-YY[1])/(XX[2]-XX[1]); if(fabs(AK23-AK)>=EPS) { B23=YY[1]-AK23XX[1]; AK=(ALY2-ALY1)/(ALX2-ALX1); BB=ALY1-AKALX1; XX23=(BB-B23)/(AK23-AK); T=XX23; YY23=AKT+BB; VALUE1=(YY23-YY[2])(YY23-YY[1]); VALUE2=(YY23-ALY1)(YY23-ALY2); VALUE3=(XX23-ALX1)(XX23-ALX2); if(VALUE1<=0 && VALUE2<=0 && VALUE3<=0) { BBX=XX23; BBY=YY23; } } }