+++ /dev/null
-/*
- Copyright (C) 1997,1998,1999
- Kenji Hiranabe, Eiwa System Management, Inc.
-
- This program is free software.
- Implemented by Kenji Hiranabe(hiranabe@esm.co.jp),
- conforming to the Java(TM) 3D API specification by Sun Microsystems.
-
- Permission to use, copy, modify, distribute and sell this software
- and its documentation for any purpose is hereby granted without fee,
- provided that the above copyright notice appear in all copies and
- that both that copyright notice and this permission notice appear
- in supporting documentation. Kenji Hiranabe and Eiwa System Management,Inc.
- makes no representations about the suitability of this software for any
- purpose. It is provided "AS IS" with NO WARRANTY.
-*/
-package javajs.util;
-
-import java.io.Serializable;
-
-
-
-/**
- * A single precision floating point 3 by 3 matrix.
- *
- * @author Kenji hiranabe
- *
- * additions by Bob Hanson hansonr@stolaf.edu 9/30/2012 for unique
- * constructor and method names for the optimization of compiled
- * JavaScript using Java2Script
- *
- *
- */
-public class M3 extends M34 implements Serializable {
-
- /**
- * Constructs and initializes a Matrix3f to all zeros.
- */
- public M3() {
- }
-
- /**
- * Constructs and initializes a Matrix3f from the specified 9 element array.
- * this.m00 =v[0], this.m01=v[1], etc.
- *
- * @param v
- * the array of length 9 containing in order
- * @return m
- */
- public static M3 newA9(float[] v) {
- M3 m = new M3();
- m.setA(v);
- return m;
- }
-
- /**
- * Constructs a new matrix with the same values as the Matrix3f parameter.
- *
- * @param m1
- * The source matrix.
- * @return m
- */
- public static M3 newM3(M3 m1) {
- M3 m = new M3();
- if (m1 == null) {
- m.setScale(1);
- return m;
- }
- m.m00 = m1.m00;
- m.m01 = m1.m01;
- m.m02 = m1.m02;
-
- m.m10 = m1.m10;
- m.m11 = m1.m11;
- m.m12 = m1.m12;
-
- m.m20 = m1.m20;
- m.m21 = m1.m21;
- m.m22 = m1.m22;
- return m;
- }
-
- /**
- * Sets this Matrix3f to a scalar * Identity.
- * @param scale
- */
- public void setScale(float scale) {
- clear33();
- m00 = m11 = m22 = scale;
- }
-
- /**
- * Sets the value of this matrix to the double value of the Matrix3f argument.
- *
- * @param m1
- * the matrix3f
- */
- public void setM3(M34 m1) {
- setM33(m1);
- }
- /**
- * Sets the values in this Matrix3f equal to the row-major array parameter
- * (ie, the first four elements of the array will be copied into the first row
- * of this matrix, etc.).
- *
- * @param m
- */
- public void setA(float m[]) {
- m00 = m[0];
- m01 = m[1];
- m02 = m[2];
- m10 = m[3];
- m11 = m[4];
- m12 = m[5];
- m20 = m[6];
- m21 = m[7];
- m22 = m[8];
- }
-
- /**
- * Sets the specified element of this matrix3d to the value provided.
- *
- * @param row
- * the row number to be modified (zero indexed)
- * @param col
- * the column number to be modified (zero indexed)
- * @param v
- * the new value
- */
- public void setElement(int row, int col, float v) {
- set33(row, col, v);
- }
-
- /**
- * Retrieves the value at the specified row and column of this matrix.
- *
- * @param row
- * the row number to be retrieved (zero indexed)
- * @param col
- * the column number to be retrieved (zero indexed)
- * @return the value at the indexed element
- */
- public float getElement(int row, int col) {
- return get33(row, col);
- }
-
- /**
- * Sets the specified row of this matrix3d to the three values provided.
- *
- * @param row
- * the row number to be modified (zero indexed)
- * @param x
- * the first column element
- * @param y
- * the second column element
- * @param z
- * the third column element
- */
- public void setRow(int row, float x, float y, float z) {
- switch (row) {
- case 0:
- m00 = x;
- m01 = y;
- m02 = z;
- return;
- case 1:
- m10 = x;
- m11 = y;
- m12 = z;
- return;
- case 2:
- m20 = x;
- m21 = y;
- m22 = z;
- return;
- default:
- err();
- }
- }
-
- /**
- * Sets the specified row of this matrix3d to the Vector provided.
- *
- * @param row
- * the row number to be modified (zero indexed)
- * @param v
- * the replacement row
- */
- public void setRowV(int row, T3 v) {
- switch (row) {
- case 0:
- m00 = v.x;
- m01 = v.y;
- m02 = v.z;
- return;
- case 1:
- m10 = v.x;
- m11 = v.y;
- m12 = v.z;
- return;
- case 2:
- m20 = v.x;
- m21 = v.y;
- m22 = v.z;
- return;
- default:
- err();
- }
- }
-
- /**
- * Sets the specified row of this matrix3d to the four values provided.
- *
- * @param row
- * the row number to be modified (zero indexed)
- * @param v
- * the replacement row
- */
- public void setRowA(int row, float v[]) {
- setRow33(row, v);
- }
-
- /**
- * Copies the matrix values in the specified row into the array parameter.
- *
- * @param row
- * the matrix row
- * @param v
- * The array into which the matrix row values will be copied
- */
- @Override
- public void getRow(int row, float v[]) {
- getRow33(row, v);
- }
-
- /**
- * Sets the specified column of this matrix3d to the three values provided.
- *
- * @param column
- * the column number to be modified (zero indexed)
- * @param x
- * the first row element
- * @param y
- * the second row element
- * @param z
- * the third row element
- */
- public void setColumn3(int column, float x, float y, float z) {
- switch (column) {
- case 0:
- m00 = x;
- m10 = y;
- m20 = z;
- break;
- case 1:
- m01 = x;
- m11 = y;
- m21 = z;
- break;
- case 2:
- m02 = x;
- m12 = y;
- m22 = z;
- break;
- default:
- err();
- }
- }
-
- /**
- * Sets the specified column of this matrix3d to the vector provided.
- *
- * @param column
- * the column number to be modified (zero indexed)
- * @param v
- * the replacement column
- */
- public void setColumnV(int column, T3 v) {
- switch (column) {
- case 0:
- m00 = v.x;
- m10 = v.y;
- m20 = v.z;
- break;
- case 1:
- m01 = v.x;
- m11 = v.y;
- m21 = v.z;
- break;
- case 2:
- m02 = v.x;
- m12 = v.y;
- m22 = v.z;
- break;
- default:
- err();
- }
- }
-
- /**
- * Copies the matrix values in the specified column into the vector parameter.
- *
- * @param column
- * the matrix column
- * @param v
- * The vector into which the matrix row values will be copied
- */
- public void getColumnV(int column, T3 v) {
- switch (column) {
- case 0:
- v.x = m00;
- v.y = m10;
- v.z = m20;
- break;
- case 1:
- v.x = m01;
- v.y = m11;
- v.z = m21;
- break;
- case 2:
- v.x = m02;
- v.y = m12;
- v.z = m22;
- break;
- default:
- err();
- }
- }
-
- /**
- * Sets the specified column of this matrix3d to the four values provided.
- *
- * @param column
- * the column number to be modified (zero indexed)
- * @param v
- * the replacement column
- */
- public void setColumnA(int column, float v[]) {
- setColumn33(column, v);
- }
-
- /**
- * Copies the matrix values in the specified column into the array parameter.
- *
- * @param column
- * the matrix column
- * @param v
- * The array into which the matrix row values will be copied
- */
- public void getColumn(int column, float v[]) {
- getColumn33(column, v);
- }
-
- /**
- * Sets the value of this matrix to sum of itself and matrix m1.
- *
- * @param m1
- * the other matrix
- */
- public void add(M3 m1) {
- add33(m1);
- }
-
- /**
- * Sets the value of this matrix to the matrix difference of itself and matrix
- * m1 (this = this - m1).
- *
- * @param m1
- * the other matrix
- */
- public void sub(M3 m1) {
- sub33(m1);
- }
-
- /**
- * Sets the value of this matrix to its transpose.
- */
- public void transpose() {
- transpose33();
- }
-
- /**
- * Sets the value of this matrix to the transpose of the argument matrix
- *
- * @param m1
- * the matrix to be transposed
- */
- public void transposeM(M3 m1) {
- // alias-safe
- setM33(m1);
- transpose33();
- }
-
- /**
- * Sets the value of this matrix to the matrix inverse of the passed matrix
- * m1.
- *
- * @param m1
- * the matrix to be inverted
- */
- public void invertM(M3 m1) {
- setM33(m1);
- invert();
- }
-
- /**
- * Sets the value of this matrix to its inverse.
- */
- public void invert() {
- double s = determinant3();
- if (s == 0.0)
- return;
- s = 1 / s;
- // alias-safe way.
- set9(m11 * m22 - m12 * m21, m02 * m21 - m01 * m22, m01 * m12 - m02 * m11,
- m12 * m20 - m10 * m22, m00 * m22 - m02 * m20, m02 * m10 - m00 * m12,
- m10 * m21 - m11 * m20, m01 * m20 - m00 * m21, m00 * m11 - m01 * m10);
- scale((float) s);
- }
-
- /**
- * Sets the value of this matrix to a rotation matrix about the x axis by the
- * passed angle.
- *
- * @param angle
- * the angle to rotate about the X axis in radians
- * @return this
- */
- public M3 setAsXRotation(float angle) {
- setXRot(angle);
- return this;
- }
-
- /**
- * Sets the value of this matrix to a rotation matrix about the y axis by the
- * passed angle.
- *
- * @param angle
- * the angle to rotate about the Y axis in radians
- * @return this
- */
- public M3 setAsYRotation(float angle) {
- setYRot(angle);
- return this;
- }
-
- /**
- * Sets the value of this matrix to a rotation matrix about the z axis by the
- * passed angle.
- *
- * @param angle
- * the angle to rotate about the Z axis in radians
- * @return this
- */
- public M3 setAsZRotation(float angle) {
- setZRot(angle);
- return this;
- }
-
- /**
- * Multiplies each element of this matrix by a scalar.
- *
- * @param scalar
- * The scalar multiplier.
- */
- public void scale(float scalar) {
- mul33(scalar);
- }
-
- /**
- * Sets the value of this matrix to the result of multiplying itself with
- * matrix m1.
- *
- * @param m1
- * the other matrix
- */
- public void mul(M3 m1) {
- mul2(this, m1);
- }
-
- /**
- * Sets the value of this matrix to the result of multiplying the two argument
- * matrices together.
- *
- * @param m1
- * the first matrix
- * @param m2
- * the second matrix
- */
- public void mul2(M3 m1, M3 m2) {
- // alias-safe way.
- set9(m1.m00 * m2.m00 + m1.m01 * m2.m10 + m1.m02 * m2.m20, m1.m00 * m2.m01
- + m1.m01 * m2.m11 + m1.m02 * m2.m21, m1.m00 * m2.m02 + m1.m01 * m2.m12
- + m1.m02 * m2.m22,
-
- m1.m10 * m2.m00 + m1.m11 * m2.m10 + m1.m12 * m2.m20, m1.m10 * m2.m01
- + m1.m11 * m2.m11 + m1.m12 * m2.m21, m1.m10 * m2.m02 + m1.m11 * m2.m12
- + m1.m12 * m2.m22,
-
- m1.m20 * m2.m00 + m1.m21 * m2.m10 + m1.m22 * m2.m20, m1.m20 * m2.m01
- + m1.m21 * m2.m11 + m1.m22 * m2.m21, m1.m20 * m2.m02 + m1.m21 * m2.m12
- + m1.m22 * m2.m22);
- }
-
- /**
- * Returns true if the Object o is of type Matrix3f and all of the data
- * members of t1 are equal to the corresponding data members in this Matrix3f.
- *
- * @param o
- * the object with which the comparison is made.
- */
- @Override
- public boolean equals(Object o) {
- if (!(o instanceof M3))
- return false;
- M3 m = (M3) o;
- return m00 == m.m00 && m01 == m.m01 && m02 == m.m02 && m10 == m.m10
- && m11 == m.m11 && m12 == m.m12 && m20 == m.m20 && m21 == m.m21
- && m22 == m.m22;
- }
-
- /**
- * Returns a hash number based on the data values in this object. Two
- * different Matrix3f objects with identical data values (ie, returns true for
- * equals(Matrix3f) ) will return the same hash number. Two objects with
- * different data members may return the same hash value, although this is not
- * likely.
- *
- * @return the integer hash value
- */
- @Override
- public int hashCode() {
- return T3.floatToIntBits(m00) ^ T3.floatToIntBits(m01)
- ^ T3.floatToIntBits(m02) ^ T3.floatToIntBits(m10)
- ^ T3.floatToIntBits(m11) ^ T3.floatToIntBits(m12)
- ^ T3.floatToIntBits(m20) ^ T3.floatToIntBits(m21)
- ^ T3.floatToIntBits(m22);
- }
-
- /**
- * Sets this matrix to all zeros.
- */
- public void setZero() {
- clear33();
- }
-
- /**
- * Sets 9 values
- *
- * @param m00
- * @param m01
- * @param m02
- * @param m10
- * @param m11
- * @param m12
- * @param m20
- * @param m21
- * @param m22
- */
- private void set9(float m00, float m01, float m02, float m10, float m11,
- float m12, float m20, float m21, float m22) {
- this.m00 = m00;
- this.m01 = m01;
- this.m02 = m02;
- this.m10 = m10;
- this.m11 = m11;
- this.m12 = m12;
- this.m20 = m20;
- this.m21 = m21;
- this.m22 = m22;
- }
-
- /**
- * Returns a string that contains the values of this Matrix3f.
- *
- * @return the String representation
- */
- @Override
- public String toString() {
- return "[\n [" + m00 + "\t" + m01 + "\t" + m02 + "]" + "\n [" + m10
- + "\t" + m11 + "\t" + m12 + "]" + "\n [" + m20 + "\t" + m21 + "\t"
- + m22 + "] ]";
- }
-
- /**
- * Sets the value of this matrix to the matrix conversion of the single
- * precision axis and angle argument.
- *
- * @param a
- * the axis and angle to be converted
- * @return this
- */
- public M3 setAA(A4 a) {
- setAA33(a);
- return this;
- }
-
- /**
- * 3D ball rotation from dx dy in-plane mouse motion
- * adapted from Andrew Hanson
- * Computer Graphics beyond the Third Dimension:
- * Geometry, Orientation Control, and Rendering for
- * Graphics in Dimensions Greater than Three
- * Course Notes for SIGGRAPH ’98
- * http://www.cse.ohio-state.edu/~hwshen/888_su02/hanson_note.pdf
- *
- * @param responseFactor Jmol uses 0.02 here
- * @param dx
- * @param dy
- * @return true if successful; false if not;
- */
- public boolean setAsBallRotation(float responseFactor, float dx, float dy) {
- float r = (float) Math.sqrt(dx * dx + dy * dy);
- float th = r * responseFactor;
- if (th == 0) {
- setScale(1);
- return false;
- }
- float c = (float) Math.cos(th);
- float s = (float) Math.sin(th);
- float nx = -dy / r;
- float ny = dx / r;
- float c1 = c - 1;
- m00 = 1 + c1 * nx * nx;
- m01 = m10 = c1 * nx * ny;
- m20 = -(m02 = s * nx);
- m11 = 1 + c1 * ny * ny;
- m21 = -(m12 = s * ny);
- m22 = c;
- return true;
- }
-
- public boolean isRotation() {
- return (Math.abs(determinant3() - 1) < 0.001f);
- }
-
-}
git://source.jalview.org / jalview.git / blobdiff