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merge Vec2 class into OBB2D

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This commit is contained in:
Hannes Janetzek 2014-01-19 14:52:01 +01:00
parent 58e48088f9
commit 7d57b8e9ec
2 changed files with 64 additions and 80 deletions
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64
vtm/src/org/oscim/utils/OBB2D.java
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@ -24,6 +24,70 @@ package org.oscim.utils;
*/
public class OBB2D {
public static class Vec2 {
public static void set(float[] v, int pos, float x, float y) {
v[(pos << 1) + 0] = x;
v[(pos << 1) + 1] = y;
}
public static float dot(float[] a, int apos, float[] b, int bpos) {
return a[apos << 1] * b[bpos << 1] + a[(apos << 1) + 1] * b[(bpos << 1) + 1];
}
public final static float lengthSquared(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
return x * x + y * y;
}
public final static void normalizeSquared(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
float length = x * x + y * y;
v[(pos << 1) + 0] = x / length;
v[(pos << 1) + 1] = y / length;
}
public final static void normalize(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
double length = Math.sqrt(x * x + y * y);
v[(pos << 1) + 0] = (float) (x / length);
v[(pos << 1) + 1] = (float) (y / length);
}
public final static float length(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
return (float) Math.sqrt(x * x + y * y);
}
public final static void add(float[] result, int rpos, float[] a, int apos, float[] b,
int bpos) {
result[(rpos << 1) + 0] = a[(apos << 1) + 0] + b[(bpos << 1) + 0];
result[(rpos << 1) + 1] = a[(apos << 1) + 1] + b[(bpos << 1) + 1];
}
public final static void sub(float[] result, int rpos, float[] a, int apos, float[] b,
int bpos) {
result[(rpos << 1) + 0] = a[(apos << 1) + 0] - b[(bpos << 1) + 0];
result[(rpos << 1) + 1] = a[(apos << 1) + 1] - b[(bpos << 1) + 1];
}
public final static void mul(float[] v, int pos, float a) {
v[(pos << 1) + 0] *= a;
v[(pos << 1) + 1] *= a;
}
}
// Corners of the box, where 0 is the lower left.
public final float[] corner = new float[4 * 2];

80
vtm/src/org/oscim/utils/Vec2.java
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@ -1,80 +0,0 @@
/*
* Copyright 2012, 2013 Hannes Janetzek
*
* This file is part of the OpenScienceMap project (http://www.opensciencemap.org).
*
* This program is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.oscim.utils;
public final class Vec2 {
public static void set(float[] v, int pos, float x, float y) {
v[(pos << 1) + 0] = x;
v[(pos << 1) + 1] = y;
}
public static float dot(float[] a, int apos, float[] b, int bpos) {
return a[apos << 1] * b[bpos << 1] + a[(apos << 1) + 1] * b[(bpos << 1) + 1];
}
public final static float lengthSquared(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
return x * x + y * y;
}
public final static void normalizeSquared(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
float length = x * x + y * y;
v[(pos << 1) + 0] = x / length;
v[(pos << 1) + 1] = y / length;
}
public final static void normalize(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
double length = Math.sqrt(x * x + y * y);
v[(pos << 1) + 0] = (float) (x / length);
v[(pos << 1) + 1] = (float) (y / length);
}
public final static float length(float[] v, int pos) {
float x = v[(pos << 1) + 0];
float y = v[(pos << 1) + 1];
return (float) Math.sqrt(x * x + y * y);
}
public final static void add(float[] result, int rpos, float[] a, int apos, float[] b, int bpos) {
result[(rpos << 1) + 0] = a[(apos << 1) + 0] + b[(bpos << 1) + 0];
result[(rpos << 1) + 1] = a[(apos << 1) + 1] + b[(bpos << 1) + 1];
}
public final static void sub(float[] result, int rpos, float[] a, int apos, float[] b, int bpos) {
result[(rpos << 1) + 0] = a[(apos << 1) + 0] - b[(bpos << 1) + 0];
result[(rpos << 1) + 1] = a[(apos << 1) + 1] - b[(bpos << 1) + 1];
}
public final static void mul(float[] v, int pos, float a) {
v[(pos << 1) + 0] *= a;
v[(pos << 1) + 1] *= a;
}
}