diff options
Diffstat (limited to 'src/main/java/org/pdfbox/util/Matrix.java')
| -rw-r--r-- | src/main/java/org/pdfbox/util/Matrix.java | 350 |
1 files changed, 0 insertions, 350 deletions
diff --git a/src/main/java/org/pdfbox/util/Matrix.java b/src/main/java/org/pdfbox/util/Matrix.java deleted file mode 100644 index ff14887..0000000 --- a/src/main/java/org/pdfbox/util/Matrix.java +++ /dev/null @@ -1,350 +0,0 @@ -/**
- * Copyright (c) 2003, www.pdfbox.org
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of pdfbox; nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * http://www.pdfbox.org
- *
- */
-package org.pdfbox.util;
-
-import java.awt.geom.AffineTransform;
-
-/**
- * This class will be used for matrix manipulation.
- *
- * @author Ben Litchfield (ben@csh.rit.edu)
- * @version $Revision: 1.13 $
- */
-public class Matrix implements Cloneable
-{
- private float[] single =
- {
- 1,0,0,
- 0,1,0,
- 0,0,1
- };
-
- /**
- * Constructor.
- */
- public Matrix()
- {
- //default constructor
- }
-
- /**
- * Create an affine transform from this matrix's values.
- *
- * @return An affine transform with this matrix's values.
- */
- public AffineTransform createAffineTransform()
- {
- AffineTransform retval = new AffineTransform(
- single[0], single[1],
- single[3], single[4],
- single[6], single[7] );
- return retval;
- }
-
- /**
- * Set the values of the matrix from the AffineTransform.
- *
- * @param af The transform to get the values from.
- */
- public void setFromAffineTransform( AffineTransform af )
- {
- single[0] = (float)af.getScaleX();
- single[1] = (float)af.getShearY();
- single[3] = (float)af.getShearX();
- single[4] = (float)af.getScaleY();
- single[6] = (float)af.getTranslateX();
- single[7] = (float)af.getTranslateY();
- }
-
- /**
- * This will get a matrix value at some point.
- *
- * @param row The row to get the value from.
- * @param column The column to get the value from.
- *
- * @return The value at the row/column position.
- */
- public float getValue( int row, int column )
- {
- return single[row*3+column];
- }
-
- /**
- * This will set a value at a position.
- *
- * @param row The row to set the value at.
- * @param column the column to set the value at.
- * @param value The value to set at the position.
- */
- public void setValue( int row, int column, float value )
- {
- single[row*3+column] = value;
- }
-
- /**
- * Return a single dimension array of all values in the matrix.
- *
- * @return The values ot this matrix.
- */
- public float[][] getValues()
- {
- float[][] retval = new float[3][3];
- retval[0][0] = single[0];
- retval[0][1] = single[1];
- retval[0][2] = single[2];
- retval[1][0] = single[3];
- retval[1][1] = single[4];
- retval[1][2] = single[5];
- retval[2][0] = single[6];
- retval[2][1] = single[7];
- retval[2][2] = single[8];
- return retval;
- }
-
- /**
- * Return a single dimension array of all values in the matrix.
- *
- * @return The values ot this matrix.
- */
- public double[][] getValuesAsDouble()
- {
- double[][] retval = new double[3][3];
- retval[0][0] = single[0];
- retval[0][1] = single[1];
- retval[0][2] = single[2];
- retval[1][0] = single[3];
- retval[1][1] = single[4];
- retval[1][2] = single[5];
- retval[2][0] = single[6];
- retval[2][1] = single[7];
- retval[2][2] = single[8];
- return retval;
- }
-
- /**
- * This will take the current matrix and multipy it with a matrix that is passed in.
- *
- * @param b The matrix to multiply by.
- *
- * @return The result of the two multiplied matrices.
- */
- public Matrix multiply( Matrix b )
- {
- Matrix result = new Matrix();
-
- float[] bMatrix = b.single;
- float[] resultMatrix = result.single;
- resultMatrix[0] = single[0] * bMatrix[0] + single[1] * bMatrix[3] + single[2] * bMatrix[6];
- resultMatrix[1] = single[0] * bMatrix[1] + single[1] * bMatrix[4] + single[2] * bMatrix[7];
- resultMatrix[2] = single[0] * bMatrix[2] + single[1] * bMatrix[5] + single[2] * bMatrix[8];
- resultMatrix[3] = single[3] * bMatrix[0] + single[4] * bMatrix[3] + single[5] * bMatrix[6];
- resultMatrix[4] = single[3] * bMatrix[1] + single[4] * bMatrix[4] + single[5] * bMatrix[7];
- resultMatrix[5] = single[3] * bMatrix[2] + single[4] * bMatrix[5] + single[5] * bMatrix[8];
- resultMatrix[6] = single[6] * bMatrix[0] + single[7] * bMatrix[3] + single[8] * bMatrix[6];
- resultMatrix[7] = single[6] * bMatrix[1] + single[7] * bMatrix[4] + single[8] * bMatrix[7];
- resultMatrix[8] = single[6] * bMatrix[2] + single[7] * bMatrix[5] + single[8] * bMatrix[8];
-
- return result;
- }
-
- /**
- * Create a new matrix with just the scaling operators.
- *
- * @return A new matrix with just the scaling operators.
- */
- public Matrix extractScaling()
- {
- Matrix retval = new Matrix();
-
- retval.single[0] = this.single[0];
- retval.single[4] = this.single[4];
-
- return retval;
- }
-
- /**
- * Convenience method to create a scaled instance.
- *
- * @param x The xscale operator.
- * @param y The yscale operator.
- * @return A new matrix with just the x/y scaling
- */
- public static Matrix getScaleInstance( float x, float y)
- {
- Matrix retval = new Matrix();
-
- retval.single[0] = x;
- retval.single[4] = y;
-
- return retval;
- }
-
- /**
- * Create a new matrix with just the translating operators.
- *
- * @return A new matrix with just the translating operators.
- */
- public Matrix extractTranslating()
- {
- Matrix retval = new Matrix();
-
- retval.single[6] = this.single[6];
- retval.single[7] = this.single[7];
-
- return retval;
- }
-
- /**
- * Convenience method to create a translating instance.
- *
- * @param x The x translating operator.
- * @param y The y translating operator.
- * @return A new matrix with just the x/y translating.
- */
- public static Matrix getTranslatingInstance( float x, float y)
- {
- Matrix retval = new Matrix();
-
- retval.single[6] = x;
- retval.single[7] = y;
-
- return retval;
- }
-
- /**
- * Clones this object.
- * @return cloned matrix as an object.
- */
- public Object clone()
- {
- Matrix clone = new Matrix();
- System.arraycopy( single, 0, clone.single, 0, 9 );
- return clone;
- }
-
- /**
- * This will copy the text matrix data.
- *
- * @return a matrix that matches this one.
- */
- public Matrix copy()
- {
- return (Matrix) clone();
- }
-
- /**
- * This will return a string representation of the matrix.
- *
- * @return The matrix as a string.
- */
- public String toString()
- {
- StringBuffer result = new StringBuffer( "" );
- result.append( "[[" );
- result.append( single[0] + "," );
- result.append( single[1] + "," );
- result.append( single[2] + "][");
- result.append( single[3] + "," );
- result.append( single[4] + "," );
- result.append( single[5] + "][");
- result.append( single[6] + "," );
- result.append( single[7] + "," );
- result.append( single[8] + "]]");
-
- return result.toString();
- }
-
- /**
- * Get the xscaling factor of this matrix.
- * @return The x-scale.
- */
- public float getXScale()
- {
- float xScale = single[0];
-
- /**
- * BM: if the trm is rotated, the calculation is a little more complicated
- *
- * The rotation matrix multiplied with the scaling matrix is:
- * ( x 0 0) ( cos sin 0) ( x*cos x*sin 0)
- * ( 0 y 0) * (-sin cos 0) = (-y*sin y*cos 0)
- * ( 0 0 1) ( 0 0 1) ( 0 0 1)
- *
- * So, if you want to deduce x from the matrix you take
- * M(0,0) = x*cos and M(0,1) = x*sin and use the theorem of Pythagoras
- *
- * sqrt(M(0,0)^2+M(0,1)^2) =
- * sqrt(x2*cos2+x2*sin2) =
- * sqrt(x2*(cos2+sin2)) = <- here is the trick cos2+sin2 is one
- * sqrt(x2) =
- * abs(x)
- */
- if( !(single[1]==0.0f && single[3]==0.0f) )
- {
- xScale = (float)Math.sqrt(Math.pow(single[0], 2)+
- Math.pow(single[1], 2));
- }
- return xScale;
- }
-
- /**
- * Get the y scaling factor of this matrix.
- * @return The y-scale factor.
- */
- public float getYScale()
- {
- float yScale = single[4];
- if( !(single[1]==0.0f && single[3]==0.0f) )
- {
- yScale = (float)Math.sqrt(Math.pow(single[3], 2)+
- Math.pow(single[4], 2));
- }
- return yScale;
- }
-
- /**
- * Get the x position in the matrix.
- * @return The x-position.
- */
- public float getXPosition()
- {
- return single[6];
- }
-
- /**
- * Get the y position.
- * @return The y position.
- */
- public float getYPosition()
- {
- return single[7];
- }
-}
\ No newline at end of file |