diff options
Diffstat (limited to 'src/javax/vecmath/GVector.java')
| -rw-r--r-- | src/javax/vecmath/GVector.java | 238 |
1 files changed, 119 insertions, 119 deletions
diff --git a/src/javax/vecmath/GVector.java b/src/javax/vecmath/GVector.java index 6eaa9b7..f6979ae 100644 --- a/src/javax/vecmath/GVector.java +++ b/src/javax/vecmath/GVector.java @@ -54,12 +54,12 @@ public class GVector implements java.io.Serializable, Cloneable { public GVector(int length) { int i; - - this.length = length; + + this.length = length; values = new double[length]; for(i = 0; i < length; i++) values[i] = 0.0; } - + /** * Constructs a new GVector from the specified array elements. * The length of this GVector is set to the length of the @@ -70,12 +70,12 @@ public class GVector implements java.io.Serializable, Cloneable { public GVector(double[] vector) { int i; - - length = vector.length; + + length = vector.length; values = new double[vector.length]; for(i = 0; i < length; i++) values[i] = vector[i]; } - + /** * Constructs a new GVector from the specified vector. * The vector elements are copied into this new GVector. @@ -84,7 +84,7 @@ public class GVector implements java.io.Serializable, Cloneable { public GVector(GVector vector) { int i; - + values = new double[vector.length]; length = vector.length; for(i = 0; i < length; i++) values[i] = vector.values[i]; @@ -103,11 +103,11 @@ public class GVector implements java.io.Serializable, Cloneable { length = 2; } - /** + /** * Constructs a new GVector and copies the initial values * from the specified tuple. * @param tuple the source for the new GVector's initial values - */ + */ public GVector(Tuple3f tuple) { values = new double[3]; @@ -117,11 +117,11 @@ public class GVector implements java.io.Serializable, Cloneable { length = 3; } - /** + /** * Constructs a new GVector and copies the initial values * from the specified tuple. * @param tuple the source for the new GVector's initial values - */ + */ public GVector(Tuple3d tuple) { values = new double[3]; @@ -131,11 +131,11 @@ public class GVector implements java.io.Serializable, Cloneable { length = 3; } - /** + /** * Constructs a new GVector and copies the initial values * from the specified tuple. * @param tuple the source for the new GVector's initial values - */ + */ public GVector(Tuple4f tuple) { values = new double[4]; @@ -146,11 +146,11 @@ public class GVector implements java.io.Serializable, Cloneable { length = 4; } - /** + /** * Constructs a new GVector and copies the initial values * from the specified tuple. * @param tuple the source for the new GVector's initial values - */ + */ public GVector(Tuple4d tuple) { values = new double[4]; @@ -185,8 +185,8 @@ public class GVector implements java.io.Serializable, Cloneable { * Returns the square root of the sum of the squares of this * vector (its length in n-dimensional space). * @return length of this vector - */ - + */ + public final double norm() { double sq = 0.0; @@ -194,25 +194,25 @@ public class GVector implements java.io.Serializable, Cloneable { for(i=0;i<length;i++) { sq += values[i]*values[i]; - } + } return(Math.sqrt(sq)); } - /** - * Returns the sum of the squares of this - * vector (its length squared in n-dimensional space). - * @return length squared of this vector + /** + * Returns the sum of the squares of this + * vector (its length squared in n-dimensional space). + * @return length squared of this vector */ - public final double normSquared() - { + public final double normSquared() + { double sq = 0.0; int i; for(i=0;i<length;i++) { sq += values[i]*values[i]; - } + } return(sq); } @@ -220,7 +220,7 @@ public class GVector implements java.io.Serializable, Cloneable { /** * Sets the value of this vector to the normalization of vector v1. * @param v1 the un-normalized vector - */ + */ public final void normalize(GVector v1) { double sq = 0.0; @@ -231,7 +231,7 @@ public class GVector implements java.io.Serializable, Cloneable { for(i=0;i<length;i++) { sq += v1.values[i]*v1.values[i]; - } + } double invMag; invMag = 1.0/Math.sqrt(sq); @@ -241,18 +241,18 @@ public class GVector implements java.io.Serializable, Cloneable { } } - + /** - * Normalizes this vector in place. - */ - public final void normalize() - { + * Normalizes this vector in place. + */ + public final void normalize() + { double sq = 0.0; int i; for(i=0;i<length;i++) { sq += values[i]*values[i]; - } + } double invMag; invMag = 1.0/Math.sqrt(sq); @@ -261,14 +261,14 @@ public class GVector implements java.io.Serializable, Cloneable { values[i] = values[i]*invMag; } - } + } /** * Sets the value of this vector to the scalar multiplication * of the scale factor with the vector v1. * @param s the scalar value - * @param v1 the source vector - */ + * @param v1 the source vector + */ public final void scale(double s, GVector v1) { int i; @@ -280,18 +280,18 @@ public class GVector implements java.io.Serializable, Cloneable { } } - /** - * Scales this vector by the scale factor s. - * @param s the scalar value - */ - public final void scale(double s) - { + /** + * Scales this vector by the scale factor s. + * @param s the scalar value + */ + public final void scale(double s) + { int i; for(i=0;i<length;i++) { values[i] = values[i]*s; } - } + } /** * Sets the value of this vector to the scalar multiplication by s @@ -305,7 +305,7 @@ public class GVector implements java.io.Serializable, Cloneable { int i; - if( v2.length != v1.length ) + if( v2.length != v1.length ) throw new MismatchedSizeException(VecMathI18N.getString("GVector2")); if( length != v1.length ) @@ -320,11 +320,11 @@ public class GVector implements java.io.Serializable, Cloneable { * Sets the value of this vector to sum of itself and the specified * vector * @param vector the second vector - */ + */ public final void add(GVector vector) { int i; - + if( length != vector.length ) throw new MismatchedSizeException(VecMathI18N.getString("GVector4")); @@ -338,17 +338,17 @@ public class GVector implements java.io.Serializable, Cloneable { * and vector2. * @param vector1 the first vector * @param vector2 the second vector - */ + */ public final void add(GVector vector1, GVector vector2) { int i; - if( vector1.length != vector2.length ) + if( vector1.length != vector2.length ) throw new MismatchedSizeException(VecMathI18N.getString("GVector5")); if( length != vector1.length ) throw new MismatchedSizeException(VecMathI18N.getString("GVector6")); - + for(i = 0; i < length; i++) this.values[i] = vector1.values[i] + vector2.values[i]; } @@ -357,31 +357,31 @@ public class GVector implements java.io.Serializable, Cloneable { * Sets the value of this vector to the vector difference of itself * and vector (this = this - vector). * @param vector the other vector - */ - public final void sub(GVector vector) - { + */ + public final void sub(GVector vector) + { int i; - + if( length != vector.length ) throw new MismatchedSizeException(VecMathI18N.getString("GVector7")); for(i = 0; i < length; i++) { this.values[i] -= vector.values[i]; } - } + } /** * Sets the value of this vector to the vector difference * of vectors vector1 and vector2 (this = vector1 - vector2). * @param vector1 the first vector * @param vector2 the second vector - */ - public final void sub(GVector vector1, GVector vector2) + */ + public final void sub(GVector vector1, GVector vector2) { int i,l; - - if( vector1.length != vector2.length ) + + if( vector1.length != vector2.length ) throw new MismatchedSizeException(VecMathI18N.getString("GVector8")); if( length != vector1.length ) @@ -393,12 +393,12 @@ public class GVector implements java.io.Serializable, Cloneable { /** * Multiplies matrix m1 times Vector v1 and places the result - * into this vector (this = m1*v1). + * into this vector (this = m1*v1). * @param m1 The matrix in the multiplication * @param v1 The vector that is multiplied */ public final void mul(GMatrix m1, GVector v1) { - if (m1.getNumCol() != v1.length) + if (m1.getNumCol() != v1.length) throw new MismatchedSizeException(VecMathI18N.getString("GVector10")); if (length != m1.getNumRow()) @@ -419,18 +419,18 @@ public class GVector implements java.io.Serializable, Cloneable { } } - /** + /** * Multiplies the transpose of vector v1 (ie, v1 becomes a row - * vector with respect to the multiplication) times matrix m1 - * and places the result into this vector - * (this = transpose(v1)*m1). The result is technically a + * vector with respect to the multiplication) times matrix m1 + * and places the result into this vector + * (this = transpose(v1)*m1). The result is technically a * row vector, but the GVector class only knows about column * vectors, and so the result is stored as a column vector. * @param m1 The matrix in the multiplication * @param v1 The vector that is temporarily transposed - */ - public final void mul(GVector v1, GMatrix m1) { - if (m1.getNumRow() != v1.length) + */ + public final void mul(GVector v1, GMatrix m1) { + if (m1.getNumRow() != v1.length) throw new MismatchedSizeException(VecMathI18N.getString("GVector12")); if (length != m1.getNumCol()) @@ -449,9 +449,9 @@ public class GVector implements java.io.Serializable, Cloneable { values[j] += m1.values[i][j] * v[i]; } } - } + } - /** + /** * Negates the value of this vector: this = -this. */ public final void negate() { @@ -494,13 +494,13 @@ public class GVector implements java.io.Serializable, Cloneable { } /** - * Sets the value of this vector to the values found in the array + * Sets the value of this vector to the values found in the array * parameter. The array should be at least equal in length to * the number of elements in the vector. * @param vector the source array - */ + */ public final void set(double[] vector) { - for(int i = length-1; i >=0; i--) + for(int i = length-1; i >=0; i--) values[i] = vector[i]; } @@ -510,11 +510,11 @@ public class GVector implements java.io.Serializable, Cloneable { */ public final void set(GVector vector) { int i; - + if (length < vector.length) { length = vector.length; values = new double[length]; - for(i = 0; i < length; i++) + for(i = 0; i < length; i++) values[i] = vector.values[i]; }else { for(i = 0; i < vector.length; i++) @@ -527,7 +527,7 @@ public class GVector implements java.io.Serializable, Cloneable { /** * Sets the value of this vector to the values in tuple * @param tuple the source for the new GVector's new values - */ + */ public final void set(Tuple2f tuple) { if (length < 2) { @@ -540,10 +540,10 @@ public class GVector implements java.io.Serializable, Cloneable { } - /** + /** * Sets the value of this vector to the values in tuple * @param tuple the source for the new GVector's new values - */ + */ public final void set(Tuple3f tuple) { if (length < 3) { @@ -556,10 +556,10 @@ public class GVector implements java.io.Serializable, Cloneable { for(int i = 3; i < length; i++) values[i] = 0.0; } - /** + /** * Sets the value of this vector to the values in tuple * @param tuple the source for the new GVector's new values - */ + */ public final void set(Tuple3d tuple) { if (length < 3) { @@ -572,10 +572,10 @@ public class GVector implements java.io.Serializable, Cloneable { for(int i = 3; i < length; i++) values[i] = 0.0; } - /** + /** * Sets the value of this vector to the values in tuple * @param tuple the source for the new GVector's new values - */ + */ public final void set(Tuple4f tuple) { if (length < 4) { @@ -589,10 +589,10 @@ public class GVector implements java.io.Serializable, Cloneable { for(int i = 4; i < length; i++) values[i] = 0.0; } - /** + /** * Sets the value of this vector to the values in tuple * @param tuple the source for the new GVector's new values - */ + */ public final void set(Tuple4d tuple) { if (length < 4) { @@ -619,18 +619,18 @@ public class GVector implements java.io.Serializable, Cloneable { * Retrieves the value at the specified index value of this vector. * @param index the index of the element to retrieve (zero indexed) * @return the value at the indexed element - */ + */ public final double getElement(int index) { return values[index]; } - - /** + + /** * Modifies the value at the specified index of this vector. - * @param index the index if the element to modify (zero indexed) + * @param index the index if the element to modify (zero indexed) * @param value the new vector element value - */ + */ public final void setElement(int index, double value) { values[index] = value; @@ -639,7 +639,7 @@ public class GVector implements java.io.Serializable, Cloneable { /** * Returns a string that contains the values of this GVector. * @return the String representation - */ + */ public String toString() { StringBuffer buffer = new StringBuffer(length*8); @@ -671,7 +671,7 @@ public class GVector implements java.io.Serializable, Cloneable { } return (int) (bits ^ (bits >> 32)); - } + } /** @@ -679,10 +679,10 @@ public class GVector implements java.io.Serializable, Cloneable { * equal to the corresponding data members in this GVector. * @param vector1 The vector with which the comparison is made. * @return true or false - */ + */ public boolean equals(GVector vector1) { - try { + try { if( length != vector1.length) return false; for(int i = 0;i<length;i++) { @@ -700,10 +700,10 @@ public class GVector implements java.io.Serializable, Cloneable { * this GMatrix. * @param o1 The object with which the comparison is made. * @return true or false - */ + */ public boolean equals(Object o1) { - try { + try { GVector v2 = (GVector) o1; if( length != v2.length) return false; @@ -720,12 +720,12 @@ public class GVector implements java.io.Serializable, Cloneable { /** * Returns true if the L-infinite distance between this vector - * and vector v1 is less than or equal to the epsilon parameter, + * and vector v1 is less than or equal to the epsilon parameter, * otherwise returns false. The L-infinite - * distance is equal to + * distance is equal to * MAX[abs(x1-x2), abs(y1-y2), . . . ]. * @param v1 The vector to be compared to this vector - * @param epsilon the threshold value + * @param epsilon the threshold value */ public boolean epsilonEquals(GVector v1, double epsilon) { @@ -747,7 +747,7 @@ public class GVector implements java.io.Serializable, Cloneable { */ public final double dot(GVector v1) { - if( length != v1.length) + if( length != v1.length) throw new MismatchedSizeException(VecMathI18N.getString("GVector14")); double result = 0.0; @@ -756,13 +756,13 @@ public class GVector implements java.io.Serializable, Cloneable { } return result; } - - + + /** * Solves for x in Ax = b, where x is this vector (nx1), A is mxn, * b is mx1, and A = U*W*transpose(V); U,W,V must - * be precomputed and can be found by taking the singular value - * decomposition (SVD) of A using the method SVD found in the + * be precomputed and can be found by taking the singular value + * decomposition (SVD) of A using the method SVD found in the * GMatrix class. * @param U The U matrix produced by the GMatrix method SVD * @param W The W matrix produced by the GMatrix method SVD @@ -795,21 +795,21 @@ public class GVector implements java.io.Serializable, Cloneable { * LU Decomposition Back Solve; this method takes the LU matrix * and the permutation vector produced by the GMatrix method LUD * and solves the equation (LU)*x = b by placing the solution vector - * x into this vector. This vector should be the same length or - * longer than b. + * x into this vector. This vector should be the same length or + * longer than b. * @param LU The matrix into which the lower and upper decompostions * have been placed * @param b The b vector in the equation (LU)*x = b - * @param permutation The row permuations that were necessary to + * @param permutation The row permuations that were necessary to * produce the LU matrix parameter - */ + */ public final void LUDBackSolve(GMatrix LU, GVector b, GVector permutation) { int size = LU.nRow*LU.nCol; double[] temp = new double[size]; double[] result = new double[size]; - int[] row_perm = new int[b.getSize()]; + int[] row_perm = new int[b.getSize()]; int i,j; if( LU.nRow != b.getSize() ) { @@ -830,13 +830,13 @@ public class GVector implements java.io.Serializable, Cloneable { } } - for(i=0;i<size;i++) result[i] = 0.0; - for(i=0;i<LU.nRow;i++) result[i*LU.nCol] = b.values[i]; - for(i=0;i<LU.nCol;i++) row_perm[i] = (int)permutation.values[i]; + for(i=0;i<size;i++) result[i] = 0.0; + for(i=0;i<LU.nRow;i++) result[i*LU.nCol] = b.values[i]; + for(i=0;i<LU.nCol;i++) row_perm[i] = (int)permutation.values[i]; GMatrix.luBacksubstitution(LU.nRow, temp, row_perm, result); - for(i=0;i<LU.nRow;i++) this.values[i] = result[i*LU.nCol]; + for(i=0;i<LU.nRow;i++) this.values[i] = result[i*LU.nCol]; } /** @@ -873,11 +873,11 @@ public class GVector implements java.io.Serializable, Cloneable { * result into this tuple: this = (1-alpha)*v1 + alpha*v2. * @param v1 the first vector * @param v2 the second vector - * @param alpha the alpha interpolation parameter - */ + * @param alpha the alpha interpolation parameter + */ public final void interpolate(GVector v1, GVector v2, double alpha) { - if( v2.length != v1.length ) + if( v2.length != v1.length ) throw new MismatchedSizeException(VecMathI18N.getString("GVector20")); if( length != v1.length ) @@ -888,11 +888,11 @@ public class GVector implements java.io.Serializable, Cloneable { } } - /** - * Linearly interpolates between this vector and vector v1 and + /** + * Linearly interpolates between this vector and vector v1 and * places the result into this tuple: this = (1-alpha)*this + alpha*v1. - * @param v1 the first vector - * @param alpha the alpha interpolation parameter + * @param v1 the first vector + * @param alpha the alpha interpolation parameter */ public final void interpolate(GVector v1, double alpha) { @@ -903,7 +903,7 @@ public class GVector implements java.io.Serializable, Cloneable { values[i] = (1-alpha)*values[i] + alpha*v1.values[i]; } } - + /** * Creates a new object of the same class as this object. * |