/**
* Sets the minimum and maximum vector to positive and negative infinity.
*
* @return This bounding box for chaining.
*/
public Bounds inf() {
min.set(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY);
max.set(Float.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY);
cnt.set(0, 0, 0);
dim.set(0, 0, 0);
return this;
}
/**
* Extends this bounding box by the given sphere.
*
* @param center Sphere center
* @param radius Sphere radius
* @return This bounding box for chaining.
*/
public Bounds ext(Vector3 center, double radius) {
return this.set(
min.set(
min(min.x, center.x - radius),
min(min.y, center.y - radius),
min(min.z, center.z - radius)),
max.set(
max(max.x, center.x + radius),
max(max.y, center.y + radius),
max(max.z, center.z + radius)));
}
/**
* Sets the given minimum and maximum vector.
*
* @param minimum The minimum vector
* @param maximum The maximum vector
* @return This bounding box for chaining.
*/
public Bounds set(Vector3 minimum, Vector3 maximum) {
min.set(
minimum.x < maximum.x ? minimum.x : maximum.x,
minimum.y < maximum.y ? minimum.y : maximum.y,
minimum.z < maximum.z ? minimum.z : maximum.z);
max.set(
minimum.x > maximum.x ? minimum.x : maximum.x,
minimum.y > maximum.y ? minimum.y : maximum.y,
minimum.z > maximum.z ? minimum.z : maximum.z);
cnt.set(min).add(max).scl(0.5f);
dim.set(max).sub(min);
return this;
}
@Override // from IBox
public Vector3 vertex(int code, Vector3 result) {
return result.set(
((code & (1 << 2)) == 0) ? _minExtent.x : _maxExtent.x,
((code & (1 << 1)) == 0) ? _minExtent.y : _maxExtent.y,
((code & (1 << 0)) == 0) ? _minExtent.z : _maxExtent.z);
}
@Override // from IBox
public boolean intersection(IRay3 ray, Vector3 result) {
IVector3 origin = ray.origin();
if (contains(origin)) {
result.set(origin);
return true;
}
IVector3 dir = ray.direction();
double t = Float.MAX_VALUE;
if (Math.abs(dir.x()) > MathUtil.EPSILON) {
t = Math.min(t, intersectionX(ray, _minExtent.x));
t = Math.min(t, intersectionX(ray, _maxExtent.x));
}
if (Math.abs(dir.y()) > MathUtil.EPSILON) {
t = Math.min(t, intersectionY(ray, _minExtent.y));
t = Math.min(t, intersectionY(ray, _maxExtent.y));
}
if (Math.abs(dir.z()) > MathUtil.EPSILON) {
t = Math.min(t, intersectionZ(ray, _minExtent.z));
t = Math.min(t, intersectionZ(ray, _maxExtent.z));
}
if (t == Float.MAX_VALUE) {
return false;
}
origin.addScaled(dir, t, result);
return true;
}
public Vector3 getDirection() {
Matrix.setIdentityM(matrix, 0);
Matrix.rotateM(matrix, 0, yaw, 0, 1, 0);
Matrix.rotateM(matrix, 0, pitch, 1, 0, 0);
Matrix.multiplyMV(outVex, 0, matrix, 0, inVex, 0);
direction.set(outVex[0], outVex[1], outVex[2]);
return direction;
}
/**
* Definiert die Plane über einen Punkt und eine Normake
*
* @param distance Die Distantz zum Koordinatenursprung
* @param normal Die Normale
* @return Diese Instanz für method chaining
*/
@NotNull
public Plane3 set(@NotNull final Vector3 normal, final float distance) {
assert !normal.isEmpty();
_normal.set(normal.getNormalized());
_distanceToOrigin = -distance;
return this;
}
/**
* Definiert die Plane über einen Punkt und eine Normake
*
* @param center Der Punkt
* @param normal Die Normale
* @return Diese Instanz für method chaining
*/
@NotNull
public Plane3 set(@NotNull final Vector3 normal, @NotNull final Vector3 center) {
assert !normal.isEmpty();
// Normale setzen
_normal.set(normal.getNormalized());
// Entfernung berechnen
_distanceToOrigin = normal.dotWithInversion(center);
return this;
}
/**
* Definiert die Plane über drei Punkte.
*
* @param a Erster Punkt
* @param b Zweiter Punkt
* @param c Dritter Punkt
* @return Diese Instanz für method chaining
*/
@NotNull
public Plane3 set(@NotNull final Vector3 a, @NotNull final Vector3 b, @NotNull final Vector3 c) {
assert !a.equals(b) && !b.equals(c); // TODO: Dürfen nicht auf einer Geraden liegen!
// Normale berechnen: _normal = a.sub(b).cross(a.sub(c));
final Vector3 aSubB = a.sub(b);
Vector3 aSubC = a.sub(c);
_normal.set(aSubB.cross(aSubC));
_normal.normalize();
// aSubB freigeben.
// aSubC wird noch nicht freigegeben, da wir den Wert in Kürze weiterverwenden werden
aSubB.recycle();
// Entfernung berechnen
final Vector3 invNormal = aSubC;
invNormal.set(_normal).invert();
_distanceToOrigin = invNormal.dot(a);
invNormal.recycle();
return this;
}
public static Vector3 getScaledVector(Vector3 unitVector, double scale) {
Vector3 vector = new Vector3();
vector.set(unitVector);
vector.scale(scale);
return vector;
}
public Vector3 getCorner100(final Vector3 out) {
return out.set(max.x, min.y, min.z);
}
/**
* Extends the bounding box to incorporate the given {@link Vector3}.
*
* @param point The vector
* @return This bounding box for chaining.
*/
public Bounds ext(Vector3 point) {
return this.set(
min.set(min(min.x, point.x), min(min.y, point.y), min(min.z, point.z)),
max.set(Math.max(max.x, point.x), Math.max(max.y, point.y), Math.max(max.z, point.z)));
}
/**
* Dreht den Strahl um, so dass er in die entgegengesetzte Richtung zeigt
*
* @return Diese Instanz für method chaining
*/
@NotNull
public Ray3 invert() {
direction.invert();
invDirection.set(1.0f / direction.x, 1.0f / direction.y, 1.0f / direction.z);
return this;
}
/**
* Extends this bounding box by the given bounding box.
*
* @param a_bounds The bounding box
* @return This bounding box for chaining.
*/
public Bounds ext(Bounds a_bounds) {
return this.set(
min.set(min(min.x, a_bounds.min.x), min(min.y, a_bounds.min.y), min(min.z, a_bounds.min.z)),
max.set(
max(max.x, a_bounds.max.x), max(max.y, a_bounds.max.y), max(max.z, a_bounds.max.z)));
}
/**
* Sets the minimum and maximum vector to zeros.
*
* @return This bounding box for chaining.
*/
public Bounds clr() {
return this.set(min.set(0, 0, 0), max.set(0, 0, 0));
}
public static Vector3 cross(float x1, float y1, float z1, float x2, float y2, float z2) {
temp3.set(x1, y1, z1);
return temp3.cross(x2, y2, z2);
}
public static float dot(float x1, float y1, float z1, float x2, float y2, float z2) {
temp3.set(x1, y1, z1);
return temp3.dot(x2, y2, z2);
}
/**
* @param out The {@link Vector3} to receive the dimensions of this bounding box on all three
* axis.
* @return The vector specified with the out argument
*/
public Vector3 getDimensions(final Vector3 out) {
return out.set(dim);
}
/**
* @param out The {@link Vector3} to receive the maximum values.
* @return The vector specified with the out argument
*/
public Vector3 getMax(final Vector3 out) {
return out.set(max);
}
/**
* Extends the bounding box by the given vector.
*
* @param x The x-coordinate
* @param y The y-coordinate
* @param z The z-coordinate
* @return This bounding box for chaining.
*/
public Bounds ext(double x, double y, double z) {
return this.set(
min.set(min(min.x, x), min(min.y, y), min(min.z, z)),
max.set(max(max.x, x), max(max.y, y), max(max.z, z)));
}
public Vector3 getCorner010(final Vector3 out) {
return out.set(min.x, max.y, min.z);
}
/**
* @param out The {@link Vector3} to receive the center of the bounding box.
* @return The vector specified with the out argument.
*/
public Vector3 getCenter(Vector3 out) {
return out.set(cnt);
}
public Vector3 getCorner111(final Vector3 out) {
return out.set(max.x, max.y, max.z);
}
/**
* @param out The {@link Vector3} to receive the minimum values.
* @return The vector specified with the out argument
*/
public Vector3 getMin(final Vector3 out) {
return out.set(min);
}