本文整理了Java中org.apache.pdfbox.util.Matrix类的一些代码示例，展示了Matrix类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Matrix类的具体详情如下：
包路径：org.apache.pdfbox.util.Matrix
类名称：Matrix

Matrix介绍

[英]This class will be used for matrix manipulation.
[中]这个类将用于矩阵操作。

代码示例

代码示例来源：origin: apache/pdfbox

private BufferedImage adjustImage(BufferedImage gray) throws IOException
{
  AffineTransform at = new AffineTransform(xform);
  Matrix m = new Matrix(at);
  at.scale(1.0 / Math.abs(m.getScalingFactorX()), 1.0 / Math.abs(m.getScalingFactorY()));
  Rectangle originalBounds = new Rectangle(gray.getWidth(), gray.getHeight());
  Rectangle2D transformedBounds = at.createTransformedShape(originalBounds).getBounds2D();
  at.preConcatenate(AffineTransform.getTranslateInstance(-transformedBounds.getMinX(), 
      -transformedBounds.getMinY()));
  
  int width = (int) Math.ceil(transformedBounds.getWidth());
  int height = (int) Math.ceil(transformedBounds.getHeight());
  BufferedImage transformedGray = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY); 
  
  Graphics2D g2 = (Graphics2D) transformedGray.getGraphics();
  g2.drawImage(gray, at, null);
  g2.dispose();
  return transformedGray;
}

代码示例来源：origin: apache/pdfbox

/**
 * Not called in TexturePaint subclasses, which is why we wrap TexturePaint.
 */
@Override
public PaintContext createContext(ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds,
                 AffineTransform xform, RenderingHints hints)
{
  AffineTransform xformPattern = (AffineTransform)xform.clone();
  // applies the pattern matrix with scaling removed
  AffineTransform patternNoScale = patternMatrix.createAffineTransform();
  patternNoScale.scale(1 / patternMatrix.getScalingFactorX(),
             1 / patternMatrix.getScalingFactorY());
  xformPattern.concatenate(patternNoScale);
  return paint.createContext(cm, deviceBounds, userBounds, xformPattern, hints);
}

代码示例来源：origin: apache/pdfbox

/**
 * This will take the current matrix and multiply 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 )
{
  return this.multiply(b, new Matrix());
}

代码示例来源：origin: apache/pdfbox

/**
 * Applies a text position adjustment from the TJ operator. May be overridden in subclasses.
 *
 * @param tx x-translation
 * @param ty y-translation
 */
protected void applyTextAdjustment(float tx, float ty) throws IOException
{
  // update the text matrix
  textMatrix.concatenate(Matrix.getTranslateInstance(tx, ty));
}

代码示例来源：origin: apache/pdfbox

/**
 * Rotares this matrix by the given factors.
 *
 * @param theta The angle of rotation measured in radians
 */
public void rotate(double theta)
{
  Matrix m = Matrix.getRotateInstance(theta, 0, 0);
  concatenate(m);
}

代码示例来源：origin: apache/pdfbox

/**
 * Produces a copy of the first matrix, with the second matrix concatenated.
 *
 * @param a The matrix to copy.
 * @param b The matrix to concatenate.
 */
public static Matrix concatenate(Matrix a, Matrix b)
{
  Matrix copy = a.clone();
  copy.concatenate(b);
  return copy;
}

代码示例来源：origin: apache/pdfbox

@Override
public void drawImage(PDImage pdImage) throws IOException
  Matrix ctm = getGraphicsState().getCurrentTransformationMatrix();
  AffineTransform at = ctm.createAffineTransform();
    boolean isScaledUp = pdImage.getWidth() < Math.round(at.getScaleX()) ||
               pdImage.getHeight() < Math.round(at.getScaleY());
    if (getGraphicsState().getNonStrokingColor().getColorSpace() instanceof PDPattern)
      Rectangle2D bounds = at.createTransformedShape(unitRect).getBounds2D();
      BufferedImage renderedPaint = 
          new BufferedImage((int) Math.ceil(bounds.getWidth()), 
      graphics.setComposite(getGraphicsState().getNonStrokingJavaComposite());
      if (isContentRendered())

代码示例来源：origin: apache/pdfbox

this.flip = new AffineTransform();
flip.translate(0, cropBox.getHeight());
flip.scale(1, -1);
    GeneralPath p = r.transform(Matrix.getTranslateInstance(-cropBox.getLowerLeftX(), cropBox.getLowerLeftY()));
    Shape s = flip.createTransformedShape(p);
    graphics.setColor(Color.green);

代码示例来源：origin: apache/pdfbox

private void adjustRectangle(Rectangle2D r)
{
  Matrix m = new Matrix(xform);
  double scaleX = Math.abs(m.getScalingFactorX());
  double scaleY = Math.abs(m.getScalingFactorY());
  AffineTransform adjustedTransform = new AffineTransform(xform);
  adjustedTransform.scale(1.0 / scaleX, 1.0 / scaleY);
  r.setRect(adjustedTransform.createTransformedShape(r).getBounds2D());
}

代码示例来源：origin: apache/pdfbox

AffineTransform at = (AffineTransform) flip.clone();
at.concatenate(text.getTextMatrix().createAffineTransform());
    text.getWidthDirAdj() / text.getTextMatrix().getScalingFactorX(),
    text.getHeightDir() / text.getTextMatrix().getScalingFactorY());
graphics.setColor(Color.red);
graphics.draw(at.createTransformedShape(rect));
BoundingBox bbox = font.getBoundingBox();
float xadvance = font.getWidth(text.getCharacterCodes()[0]); // todo: should iterate all chars
Rectangle2D rect = new Rectangle2D.Float(0, bbox.getLowerLeftY(), xadvance, bbox.getHeight());
AffineTransform at = (AffineTransform) flip.clone();
at.concatenate(text.getTextMatrix().createAffineTransform());
  at.concatenate(font.getFontMatrix().createAffineTransform());

代码示例来源：origin: apache/pdfbox

= new TransparencyGroup(form, false, getGraphicsState().getCurrentTransformationMatrix(), null);
BufferedImage image = group.getImage();
if (image == null)
graphics.setComposite(getGraphicsState().getNonStrokingJavaComposite());
setClip();
AffineTransform prev = graphics.getTransform();
Matrix m = new Matrix(xform);
float xScale = Math.abs(m.getScalingFactorX());
float yScale = Math.abs(m.getScalingFactorY());
AffineTransform transform = new AffineTransform(xform);
transform.scale(1.0 / xScale, 1.0 / yScale);
graphics.setTransform(transform);
float x = bbox.getLowerLeftX() - pageSize.getLowerLeftX();
float y = pageSize.getUpperRightY() - bbox.getUpperRightY();
PDSoftMask softMask = getGraphicsState().getSoftMask();
if (softMask != null)

代码示例来源：origin: apache/pdfbox

rat = shading.getMatrix().createAffineTransform().createInverse();
rat.concatenate(matrix.createAffineTransform().createInverse());
rat.concatenate(xform.createInverse());

代码示例来源：origin: apache/pdfbox

private Shape calculateGlyphBounds(Matrix textRenderingMatrix, PDFont font, int code) throws IOException
  AffineTransform at = textRenderingMatrix.createAffineTransform();
  at.concatenate(font.getFontMatrix().createAffineTransform());
  if (font instanceof PDType3Font)
        glyphBBox.setLowerLeftX(Math.max(fontBBox.getLowerLeftX(), glyphBBox.getLowerLeftX()));
        glyphBBox.setLowerLeftY(Math.max(fontBBox.getLowerLeftY(), glyphBBox.getLowerLeftY()));
        glyphBBox.setUpperRightX(Math.min(fontBBox.getUpperRightX(), glyphBBox.getUpperRightX()));
        glyphBBox.setUpperRightY(Math.min(fontBBox.getUpperRightY(), glyphBBox.getUpperRightY()));
      at.scale(1000d / unitsPerEm, 1000d / unitsPerEm);
        at.scale(1000d / unitsPerEm, 1000d / unitsPerEm);

代码示例来源：origin: apache/pdfbox

AffineTransform at = textRenderingMatrix.createAffineTransform();
at.concatenate(font.getFontMatrix().createAffineTransform());
if (!font.isEmbedded() && !font.isVertical() && !font.isStandard14() && font.hasExplicitWidth(code))
  float fontWidth = font.getWidthFromFont(code);
    at.scale(pdfWidth / fontWidth, 1);
Shape glyph = at.createTransformedShape(path);
bbox = glyph.getBounds2D();

代码示例来源：origin: apache/pdfbox

public Rectangle2D getBounds()
  {
    Point2D size = new Point2D.Double(pageSize.getWidth(), pageSize.getHeight());
    // apply the underlying Graphics2D device's DPI transform and y-axis flip
    Matrix m = new Matrix(xform);
    AffineTransform dpiTransform = AffineTransform.getScaleInstance(Math.abs(m.getScalingFactorX()), Math.abs(m.getScalingFactorY()));
    size = dpiTransform.transform(size, size);
    // Flip y
    return new Rectangle2D.Double(minX - pageSize.getLowerLeftX() * Math.abs(m.getScalingFactorX()),
        size.getY() - minY - height + pageSize.getLowerLeftY() * Math.abs(m.getScalingFactorY()),
        width, height);
  }
}

代码示例来源：origin: apache/pdfbox

private AffineTransform calculateMatrix(PDRectangle bbox, int rotation)
{
  if (rotation == 0)
  {
    return new AffineTransform();
  }
  float tx = 0, ty = 0;
  switch (rotation)
  {
    case 90:
      tx = bbox.getUpperRightY();
      break;
    case 180:
      tx = bbox.getUpperRightY();
      ty = bbox.getUpperRightX();
      break;
    case 270:
      ty = bbox.getUpperRightX();
      break;
    default:
      break;
  }
  Matrix matrix = Matrix.getRotateInstance(Math.toRadians(rotation), tx, ty);
  return matrix.createAffineTransform();
}

代码示例来源：origin: apache/pdfbox

/**
 * Draw an image at the x,y coordinates, with the given size.
 *
 * @param image The image to draw.
 * @param x The x-coordinate to draw the image.
 * @param y The y-coordinate to draw the image.
 * @param width The width to draw the image.
 * @param height The height to draw the image.
 *
 * @throws IOException If there is an error writing to the stream.
 * @throws IllegalStateException If the method was called within a text block.
 */
public void drawImage(PDImageXObject image, float x, float y, float width, float height) throws IOException
{
  if (inTextMode)
  {
    throw new IllegalStateException("Error: drawImage is not allowed within a text block.");
  }
  saveGraphicsState();
  AffineTransform transform = new AffineTransform(width, 0, 0, height, x, y);
  transform(new Matrix(transform));
  writeOperand(resources.add(image));
  writeOperator("Do");
  restoreGraphicsState();
}

代码示例来源：origin: apache/pdfbox

if (fontBBox.getWidth() < 72 || fontBBox.getHeight() < 72)
  scale = (int) (72 / Math.min(fontBBox.getWidth(), fontBBox.getHeight()));
PDPage page = new PDPage(new PDRectangle(fontBBox.getWidth() * scale, fontBBox.getHeight() * scale));
try
  try (PDPageContentStream cs = new PDPageContentStream(doc, page))
    cs.transform(Matrix.getTranslateInstance(-fontBBox.getLowerLeftX(), -fontBBox.getLowerLeftY()));
    try
      AffineTransform at = font.getFontMatrix().createAffineTransform();
      if (!at.isIdentity())
        at.invert();
        cs.transform(new Matrix(at));

代码示例来源：origin: apache/pdfbox

/**
 * Transforms a point using the CTM.
 */
public Point2D.Float transformedPoint(float x, float y)
{
  float[] position = { x, y };
  getGraphicsState().getCurrentTransformationMatrix().createAffineTransform()
      .transform(position, 0, position, 0, 1);
  return new Point2D.Float(position[0], position[1]);
}

代码示例来源：origin: apache/pdfbox

if (font instanceof PDType3Font)
  height = font.getFontMatrix().transformPoint(0, glyphHeight).y;
Matrix td = Matrix.getTranslateInstance(tx, ty);
Matrix nextTextRenderingMatrix = td.multiply(textMatrix).multiply(ctm); // text space -> device space
float nextX = nextTextRenderingMatrix.getTranslateX();
float nextY = nextTextRenderingMatrix.getTranslateY();
float dxDisplay = nextX - textRenderingMatrix.getTranslateX();
float dyDisplay = height * textRenderingMatrix.getScalingFactorY();
if (font instanceof PDType3Font)
  glyphSpaceToTextSpaceFactor = font.getFontMatrix().getScaleX();
float spaceWidthDisplay = spaceWidthText * textRenderingMatrix.getScalingFactorX();
  translatedTextRenderingMatrix = Matrix.concatenate(translateMatrix, textRenderingMatrix);
  nextX -= pageSize.getLowerLeftX();
  nextY -= pageSize.getLowerLeftY();
processTextPosition(new TextPosition(pageRotation, pageSize.getWidth(),
    pageSize.getHeight(), translatedTextRenderingMatrix, nextX, nextY,
    Math.abs(dyDisplay), dxDisplay,
    Math.abs(spaceWidthDisplay), unicode, new int[] { code } , font, fontSize,
    (int)(fontSize * textMatrix.getScalingFactorX())));