java.awt.geom.AffineTransform.setToIdentity()方法的使用及代码示例

x33g5p2x  于2022-01-15 转载在 其他  
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本文整理了Java中java.awt.geom.AffineTransform.setToIdentity()方法的一些代码示例，展示了AffineTransform.setToIdentity()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。AffineTransform.setToIdentity()方法的具体详情如下：
包路径：java.awt.geom.AffineTransform
类名称：AffineTransform
方法名：setToIdentity

AffineTransform.setToIdentity介绍

暂无

代码示例

代码示例来源：origin: stackoverflow.com

  1. // create an AffineTransform 
  2. // and a triangle centered on (0,0) and pointing downward
  3. // somewhere outside Swing's paint loop
  4. AffineTransform tx = new AffineTransform();
  5. Line2D.Double line = new Line2D.Double(0,0,100,100);
  7. Polygon arrowHead = new Polygon();  
  8. arrowHead.addPoint( 0,5);
  9. arrowHead.addPoint( -5, -5);
  10. arrowHead.addPoint( 5,-5);
  12. // [...]
  13. private void drawArrowHead(Graphics2D g2d) {  
  14.   tx.setToIdentity();
  15.   double angle = Math.atan2(line.y2-line.y1, line.x2-line.x1);
  16.   tx.translate(line.x2, line.y2);
  17.   tx.rotate((angle-Math.PI/2d));  
  19.   Graphics2D g = (Graphics2D) g2d.create();
  20.   g.setTransform(tx);   
  21.   g.fill(arrowHead);
  22.   g.dispose();
  23. }

代码示例来源：origin: Activiti/Activiti

  1. public void drawDefaultSequenceFlowIndicator(Line2D.Double line) {
  2.   double length = DEFAULT_INDICATOR_WIDTH;
  3.   double halfOfLength = length / 2;
  4.   double f = 8;
  5.   Line2D.Double defaultIndicator = new Line2D.Double(-halfOfLength,
  6.                             0,
  7.                             halfOfLength,
  8.                             0);
  9.   double angle = Math.atan2(line.y2 - line.y1,
  10.                line.x2 - line.x1);
  11.   double dx = f * Math.cos(angle);
  12.   double dy = f * Math.sin(angle);
  13.   double x1 = line.x1 + dx;
  14.   double y1 = line.y1 + dy;
  15.   AffineTransform transformation = new AffineTransform();
  16.   transformation.setToIdentity();
  17.   transformation.translate(x1,
  18.                y1);
  19.   transformation.rotate((angle - 3 * Math.PI / 4));
  20.   AffineTransform originalTransformation = g.getTransform();
  21.   g.setTransform(transformation);
  22.   g.draw(defaultIndicator);
  23.   g.setTransform(originalTransformation);
  24. }

代码示例来源：origin: Activiti/Activiti

  1. transformation.setToIdentity();
  2. double angle = Math.atan2(line.y2 - line.y1,
  3.              line.x2 - line.x1);

代码示例来源：origin: Activiti/Activiti

  1. transformation.setToIdentity();
  2. transformation.rotate(270 * Math.PI / 180);

代码示例来源：origin: Activiti/Activiti

  1. public void drawConditionalSequenceFlowIndicator(Line2D.Double line) {
  2.   int horizontal = (int) (CONDITIONAL_INDICATOR_WIDTH * 0.7);
  3.   int halfOfHorizontal = horizontal / 2;
  4.   int halfOfVertical = CONDITIONAL_INDICATOR_WIDTH / 2;
  5.   Polygon conditionalIndicator = new Polygon();
  6.   conditionalIndicator.addPoint(0,
  7.                  0);
  8.   conditionalIndicator.addPoint(-halfOfHorizontal,
  9.                  halfOfVertical);
  10.   conditionalIndicator.addPoint(0,
  11.                  CONDITIONAL_INDICATOR_WIDTH);
  12.   conditionalIndicator.addPoint(halfOfHorizontal,
  13.                  halfOfVertical);
  14.   AffineTransform transformation = new AffineTransform();
  15.   transformation.setToIdentity();
  16.   double angle = Math.atan2(line.y2 - line.y1,
  17.                line.x2 - line.x1);
  18.   transformation.translate(line.x1,
  19.                line.y1);
  20.   transformation.rotate((angle - Math.PI / 2d));
  21.   AffineTransform originalTransformation = g.getTransform();
  22.   g.setTransform(transformation);
  23.   g.draw(conditionalIndicator);
  24.   Paint originalPaint = g.getPaint();
  25.   g.setPaint(CONDITIONAL_INDICATOR_COLOR);
  26.   g.fill(conditionalIndicator);
  27.   g.setPaint(originalPaint);
  28.   g.setTransform(originalTransformation);
  29. }

代码示例来源：origin: mapsforge/mapsforge

  1. @Override
  2. public void reset() {
  3.   this.affineTransform.setToIdentity();
  4. }

代码示例来源：origin: geotools/geotools

  1. /** Checks for {@linkplain #checkPermission permission} before setting this transform. */
  2. @Override
  3. public void setToIdentity() {
  4.   checkPermission();
  5.   super.setToIdentity();
  6. }

代码示例来源：origin: mapsforge/mapsforge

  1. transform.setToIdentity();

代码示例来源：origin: dermotte/LIRE

  1. @Override
  2. public boolean fit(PointMatch[] min_matches) {
  3.   PointMatch m1 = min_matches[0];
  4.   float[] m1_p1 = m1.getP1().getL();
  5.   float[] m1_p2 = m1.getP2().getL();
  6.   float tx = m1_p1[0] - m1_p2[0];
  7.   float ty = m1_p1[1] - m1_p2[1];
  8.   affine.setToIdentity();
  9.   affine.translate(tx, ty);
  10.   return true;
  11. }

代码示例来源：origin: dermotte/LIRE

  1. @Override
  2. public boolean fit(PointMatch[] min_matches) {
  3.   PointMatch m1 = min_matches[0];
  4.   float[] m1_p1 = m1.getP1().getL();
  5.   float[] m1_p2 = m1.getP2().getL();
  6.   float tx = m1_p1[0] - m1_p2[0];
  7.   float ty = m1_p1[1] - m1_p2[1];
  8.   affine.setToIdentity();
  9.   affine.translate(tx, ty);
  10.   return true;
  11. }

代码示例来源：origin: dermotte/LIRE

  1. public void minimize(Collection<PointMatch> matches) {
  2.   // center of mass:
  3.   float xo1 = 0, yo1 = 0;
  4.   float xo2 = 0, yo2 = 0;
  5.   int length = matches.size();
  6.   for (PointMatch m : matches) {
  7.     float[] m_p1 = m.getP1().getL();
  8.     float[] m_p2 = m.getP2().getW();
  9.     xo1 += m_p1[0];
  10.     yo1 += m_p1[1];
  11.     xo2 += m_p2[0];
  12.     yo2 += m_p2[1];
  13.   }
  14.   xo1 /= length;
  15.   yo1 /= length;
  16.   xo2 /= length;
  17.   yo2 /= length;
  18.   float dx = xo1 - xo2; // reversed, because the second will be moved relative to the first
  19.   float dy = yo1 - yo2;
  20.   affine.setToIdentity();
  21.   affine.translate(-dx, -dy);
  22. }

代码示例来源：origin: dermotte/LIRE

  1. public void minimize(Collection<PointMatch> matches) {
  2.   // center of mass:
  3.   float xo1 = 0, yo1 = 0;
  4.   float xo2 = 0, yo2 = 0;
  5.   int length = matches.size();
  6.   for (PointMatch m : matches) {
  7.     float[] m_p1 = m.getP1().getL();
  8.     float[] m_p2 = m.getP2().getW();
  9.     xo1 += m_p1[0];
  10.     yo1 += m_p1[1];
  11.     xo2 += m_p2[0];
  12.     yo2 += m_p2[1];
  13.   }
  14.   xo1 /= length;
  15.   yo1 /= length;
  16.   xo2 /= length;
  17.   yo2 /= length;
  18.   float dx = xo1 - xo2; // reversed, because the second will be moved relative to the first
  19.   float dy = yo1 - yo2;
  20.   affine.setToIdentity();
  21.   affine.translate(-dx, -dy);
  22. }

代码示例来源：origin: stackoverflow.com

  1. g2d.drawPolygon(p1);
  2. g2d.drawPolygon(p2);
  3. at.setToIdentity();
  4. at.translate(w / 2, h / 2);
  5. at.scale(scale, scale);

代码示例来源：origin: dermotte/LIRE

  1. affine.setToIdentity();
  2. affine.rotate(-angle, xo2, yo2);
  3. affine.translate(-dx, -dy);

代码示例来源：origin: dermotte/LIRE

  1. affine.setToIdentity();
  2. affine.rotate(-angle, xo2, yo2);
  3. affine.translate(-dx, -dy);

代码示例来源：origin: geotools/geotools

  1. while (Math.abs(currOffset) <= labelOffset * 2 && !painted) {
  2.   tx.setToIdentity();
  3.   Rectangle2D labelEnvelope;
  4.   double maxAngleChange = 0;

代码示例来源：origin: org.icepdf.os/icepdf-core

  1. private static AffineTransform createRotation(Point2D point,
  2.                        Point2D startOfLine,
  3.                        Point2D endOfLine) {
  4.   AffineTransform tx = new AffineTransform();
  5.   Line2D.Double line = new Line2D.Double(startOfLine, endOfLine);
  6.   tx.setToIdentity();
  7.   double angle = Math.atan2(line.y2 - line.y1, line.x2 - line.x1);
  8.   tx.translate(point.getX(), point.getY());
  9.   tx.rotate(angle - (Math.PI / 2));
  10.   return tx;
  11. }

代码示例来源：origin: geotools/geotools

  1. while (Math.abs(currOffset) <= (labelOffset * 2) && !painted) {
  2.   tx.setToIdentity();
  3.   double maxAngleChange = 0;
  4.   boolean curved = false;

代码示例来源：origin: net.sf.jung/jung-visualization

  1. public void setToIdentity() {
  2.     inverse = null;
  3.     transform.setToIdentity();
  4.     fireStateChanged();
  5.   }
  6. }

代码示例来源：origin: jrtom/jung

  1. /**
  2.  * setter for the scale fires a PropertyChangeEvent with the AffineTransforms representing the
  3.  * previous and new values for scale and offset
  4.  *
  5.  * @param scalex the amount to scale in the x direction
  6.  * @param scaley the amount to scale in the y direction
  7.  * @param from the point to transform
  8.  */
  9. public void setScale(double scalex, double scaley, Point2D from) {
  10.  transform.setToIdentity();
  11.  scale(scalex, scaley, from);
  12. }

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