| /* |
| * 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); |
| } |
| } |
| |