⼆维图形平移变换java程序_⽤java怎样编写⼀个⼆维坐标平移
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java编写⼆维坐标平移程62616964757a686964616fe78988e69d8331333337626231序，主要是通过类继承Point2D，使⽤⾥⾯的⽅法来平移，如下代码：class  Point2D
{
int x, y;
Point2D(){  }
Point2D(int i,int j)
{
x=i;
y=j;
}
void offset(int a, int b)
{
x=x+a;
y=y+b;
}
void distance(Point2D a,Point2D b)
{
float m;
m=(float)Math.sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y));
System.out.print("⼆维空间两点之间的距离:");
System.out.println("m="+m);
}
}
public class Point3D extends Point2D
{
int x,y,z;
Point3D(int x,int y,int z)
{
this.x=x;
this.y=y;
this.z=z;
}
Point3D(Point2D p,int z)
{
x=p.x;
y=p.y;
this.z=z;
}
void offset(int a, int b,int c)
{
java怎么编写x=x+a;
b=x+b;
c=x+c;
}
void distance(Point3D a,Point3D b)
{
float n;
n=(float)Math.sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y)+(a.y-b.y)*(a.y-b.y));//计算两点之间的距离。System.out.print("三维空间两点之间的距离:");
System.out.println("n="+n);
}
public static void main(String[] args)
{
Point2D p2d1=new Point2D(2,3);
Point2D p2d2=new Point2D(3,6);
Point3D p2d3=new Point3D(1,2,3);
Point3D p2d4=new Point3D(p2d1,3);
p2d1.distance(p2d1,p2d2);
p2d3.distance(p2d3,p2d4);//平移⼀段距离。
}
}