Declaration syntax error 高手解决一下!

[iverson3996]

bool TwoLineIsIntersect(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, float &InterX, float &InterY)
{ //两条线段是否相交X0X1 AND X1X2
float x, y;
float Minx01 = Min(x0, x1);
float Miny01 = Min(y0, y1);
float Minx23 = Min(x2, x3);
float Miny23 = Min(y2, y3);
float Maxx01 = Max(x0, x1);
float Maxy01 = Max(y0, y1);
float Maxx23 = Max(x2, x3);
float Maxy23 = Max(y2, y3);

if(x1!=x0 && x2!=x3)
{
float k1 = (y1-y0)/(x1-x0);
float k2 = (y3-y2)/(x3-x2);
float Den = (y1-y0)*(x3-x2) - (y3-y2)*(x1-x0);
if(k1==k2)
{ //平行不相交
float d1 = abs(y0*(x1-x0)-x0*(y1-y0)-y2*(x3-x2)+x2*(y3-y2)); //距离公式d = abs(c1-c2) / sqrt(a*a+b*b)
if(d1==0)
{//直线重合
if((x2>Minx01 && x2<Maxy01 && y2>Miny01 && y2<Maxy01) || (x3>Minx01 && x3<Maxy01 && y3>Miny01 && y3<Maxy01)
|| (x0>Minx23 && x0<Maxy23 && y0>Miny23 && y0<Maxy23) || (x1>Minx23 && x1<Maxy23 && y1>Miny23 && y1<Maxy23))
{ //实际碰撞问题线段重合认为相交了
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
x = ((y2-y0)*(x1-x0)*(x3-x2)+(y1-y0)*(x3-x2)*x0-(y3-y2)*(x1-x0)*x2)/Den;
y = ((y1-y0)*(x-x0))/(x1-x0) + y0;

if(Minx01<=x && x<=Maxx01 && Miny01<=y && y<=Maxy01 && Minx23<=x && x<=Maxx23 && Miny23<=y && y<=Maxy23)
{
InterX = x;
InterY = y;
return true;
}
}
else if(x1==x0 && x2!=x3)
{
x = x0;
y = ((y3-y2)*(x0-x2))/(x3-x2) + y2;
if(Minx01<=x && x<=Maxx01 && Miny01<=y && y<=Maxy01 && Minx23<=x && x<=Maxx23 && Miny23<=y && y<=Maxy23)
{
InterX = x;
InterY = y;
return true;
}
}
else if(x1!=x0 && x2==x3)
{
x = x2;
y = ((y1-y0)*(x2-x0))/(x1-x0) + y0;
if(Minx01<=x && x<=Maxx01 && Miny01<=y && y<=Maxy01 && Minx23<=x && x<=Maxx23 && Miny23<=y && y<=Maxy23)
{
InterX = x;
InterY = y;
return true;
}
}
return false;
}

[csdn5211]

没问题啊，楼主给个全点的代码吧，把出错那行贴上来。

[JimmyFan2006]

Min Max?你最好把出错代码贴出来

[iverson3996]

bool TwoLineIsIntersect(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, float &InterX, float &InterY)

[JimmyFan2006]

要的是错误信息, 不是你这个

[csdn5211]

你可能在这句前面少了大括号，也就是'}'。

[iverson3996]

5楼的不对啊!
bool TwoLineIsIntersect(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, float &InterX, float &InterY)
{
错误信息是Declaration dyntax error

[csdn5211]

你确定前面的大括号都匹配了？总之你这个是小问题，语法错误，建议把全部代码发上来。