Class Vectors4L
java.lang.Object
com.io7m.jtensors.core.unparameterized.vectors.Vectors4L
public final class Vectors4L
extends java.lang.Object
Functions over Vector4L
values.
See "Mathematics for 3D Game Programming and Computer Graphics" 2nd Ed for the derivations of most of the code in this class (ISBN: 1-58450-277-0).
- Since:
- 8.0.0
-
Method Summary
Modifier and Type Method Description static Vector4L
absolute(Vector4L v0)
Calculate the absolute ofv0
.static Vector4L
add(Vector4L v0, Vector4L v1)
Addv0
tov1
.static Vector4L
addScaled(Vector4L v0, Vector4L v1, double r)
Addv0
tov1 * r
.static Vector4L
clamp(Vector4L v, Vector4L v_min, Vector4L v_max)
Clamp the values inv
byv_min
andv_max
.static long
distance(Vector4L v0, Vector4L v1)
Calculate the distance betweenv0
andv1
.static long
dotProduct(Vector4L v0, Vector4L v1)
Calculate the scalar product of the vectorsv0
andv1
.static Vector4L
interpolateBilinear(Vector4L x0y0, Vector4L x1y0, Vector4L x0y1, Vector4L x1y1, double px, double py)
Bilinearly interpolate betweenx0y0
,x1y0
,x0y1
,x1y1
.static Vector4L
interpolateLinear(Vector4L v0, Vector4L v1, double alpha)
Linearly interpolate betweenv0
andv1
by the amountalpha
.static double
magnitude(Vector4L v0)
Calculate the magnitude of the vectorv0
.static long
magnitudeSquared(Vector4L v0)
Calculate the squared magnitude of the vectorv0
.static Vector4L
multiply(Vector4L v0, Vector4L v1)
Multiplyv0
byv1
.static Vector4L
negate(Vector4L v)
Calculate the negation ofv
.static Vector4L
scale(Vector4L v0, double r)
Scalev0
byr
.static Vector4L
subtract(Vector4L v0, Vector4L v1)
Subtractv1
fromv0
.static Vector4L
zero()
The zero vector.
-
Method Details
-
absolute
Calculate the absolute ofv0
.- Returns:
(abs v0.x, abs v0.y, abs v0.z, abs v0.w)
* @param v0 The vector
-
add
Addv0
tov1
.- Parameters:
v1
- The right vector- Returns:
(v0.x + v1.x, v0.y + v1.y, v0.z + v1.z, v0.w + v1.w)
* @param v0 The left vector
-
multiply
Multiplyv0
byv1
.- Parameters:
v1
- The right vector- Returns:
(v0.x * v1.x, v0.y * v1.y, v0.z * v1.z, v0.w * v1.w)
* @param v0 The left vector- Since:
- 10.0.0
-
addScaled
Addv0
tov1 * r
.- Parameters:
v1
- The right vectorr
- The scaling value- Returns:
(v0.x + (v1.x * r), v0.y + (v0.y * r), v0.z + (v1.z * r), v0.w + (v1.w * r))
* @param v0 The left vector
-
clamp
Clamp the values inv
byv_min
andv_max
.- Parameters:
v_min
- The minimum vectorv_max
- The maximum vector- Returns:
(max(min(v.x, v_max.x()), v_min.x()), max(min(v.y, v_max.y()), v_min.y()), max(min(v.z, v_max.z()), v_min.z()), max(min(v.w, v_max.w()), v_min.w()))
* @param v The source vector
-
distance
Calculate the distance betweenv0
andv1
.- Parameters:
v1
- The right vector- Returns:
- The distance between
v0
andv1
. * @param v0 The left vector
-
dotProduct
Calculate the scalar product of the vectorsv0
andv1
. * @param v0 The left vector- Parameters:
v1
- The right vector- Returns:
- The scalar product of the two vectors
-
interpolateLinear
Linearly interpolate between
v0
andv1
by the amountalpha
.The
alpha
parameter controls the degree of interpolation, such that:interpolateLinear(v0, v1, 0.0) = v0
interpolateLinear(v0, v1, 1.0) = v1
- Parameters:
v0
- The left input vectorv1
- The right input vectoralpha
- The interpolation value in the range[0, 1]
* @return((1 - alpha) * v0) + (alpha * v1)
-
interpolateBilinear
public static Vector4L interpolateBilinear(Vector4L x0y0, Vector4L x1y0, Vector4L x0y1, Vector4L x1y1, double px, double py)Bilinearly interpolate between
x0y0
,x1y0
,x0y1
,x1y1
.The
px
andpy
parameters control the degree of interpolation, such that:interpolateBilinear(x0y0, x1y0, x0y1, x1y1, 0.0, 0.0) = x0y0
interpolateBilinear(x0y0, x1y0, x0y1, x1y1, 1.0, 0.0) = x1y0
interpolateBilinear(x0y0, x1y0, x0y1, x1y1, 0.0, 1.0) = x0y1
interpolateBilinear(x0y0, x1y0, x0y1, x1y1, 1.0, 1.0) = x1y1
- Parameters:
x0y0
- The top left input vectorx1y0
- The top right input vectorx0y1
- The bottom left input vectorx1y1
- The bottom right input vectorpx
- The X interpolation value in the range[0, 1]
py
- The Y interpolation value in the range[0, 1]
* @return The bilinearly interpolated value
-
magnitudeSquared
Calculate the squared magnitude of the vectorv0
. * @param v0 The vector- Returns:
- The squared magnitude of the vector
-
magnitude
Calculate the magnitude of the vectorv0
. * @param v0 The vector- Returns:
- The magnitude of the vector
-
negate
Calculate the negation ofv
.- Returns:
(-v.x, -v.y, -v.z, -v.w)
* @param v The vector
-
scale
Scalev0
byr
.- Parameters:
r
- The scaling value- Returns:
(v0.x * r, v0.y * r, v0.z * r, v0.w * r)
* @param v0 The left vector
-
subtract
Subtractv1
fromv0
.- Parameters:
v1
- The right vector- Returns:
(v0.x - v1.x, v0.y - v1.y, v0.z - v1.z, v0.w - v1.w)
* @param v0 The left vector
-
zero
The zero vector.- Returns:
(0, 0, 0, 0)
-