/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.graphics;
import android.util.FloatMath;
/**
* PointF holds two float coordinates
*/
public class PointF {
public float x;
public float y;
public PointF() {}
public PointF(float x, float y) {
this.x = x;
this.y = y;
}
public PointF(Point p) {
this.x = p.x;
this.y = p.y;
}
/**
* Set the point's x and y coordinates
*/
public final void set(float x, float y) {
this.x = x;
this.y = y;
}
/**
* Set the point's x and y coordinates to the coordinates of p
*/
public final void set(PointF p) {
this.x = p.x;
this.y = p.y;
}
public final void negate() {
x = -x;
y = -y;
}
public final void offset(float dx, float dy) {
x += dx;
y += dy;
}
/**
* Returns true if the point's coordinates equal (x,y)
*/
public final boolean equals(float x, float y) {
return this.x == x && this.y == y;
}
/**
* Return the euclidian distance from (0,0) to the point
*/
public final float length() {
return length(x, y);
}
/**
* Returns the euclidian distance from (0,0) to (x,y)
*/
public static float length(float x, float y) {
return FloatMath.sqrt(x * x + y * y);
}
}