Examples of java.awt.Graphics2D.rotate()

java.awt.Graphics2D.rotate()
Concatenates the current Graphics2D Transform with a rotation transform. Subsequent rendering is rotated by the specified radians relative to the previous origin. This is equivalent to calling transform(R), where R is an AffineTransform represented by the following matrix:
```
 [   cos(theta)    -sin(theta)    0   ] [   sin(theta)     cos(theta)    0   ] [       0              0         1   ] 
```
Rotating with a positive angle theta rotates points on the positive x axis toward the positive y axis. @param theta the angle of rotation in radians

        g2.draw(new Rectangle2D.Float(0, 0, rfm.maxBoundsWidth, lineHeight));
      }
      // end DEBUG
      int mid = (lineHeight) / 2;
      g2.translate(rfm.maxBoundsWidth / 2, mid);
      g2.rotate(angle);
      // DEBUG section
      if (DEBUG) {
        g2.setColor(Color.red);


        g2.draw(new Rectangle2D.Double(-1, -1, 1, 1));

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            g2d.setRenderingHint(key, hints.get(key));
        }


        // set transform
        g2d.translate(trans.getTranslation().getX(), trans.getTranslation().getY());
        g2d.rotate(trans.getMatrix().toAngles(null)[2]); // rotation about z
        g2d.scale(trans.getScale().getX(), trans.getScale().getY());


        // set composite
        if (_compositeOverride != null) {
            g2d.setComposite(_compositeOverride);

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            g2d.setRenderingHint(key, hints.get(key));
        }


        // set transform
        g2d.translate(trans.getTranslation().getX(), trans.getTranslation().getY());
        g2d.rotate(trans.getMatrix().toAngles(null)[2]); // rotation about z
        g2d.scale(trans.getScale().getX(), trans.getScale().getY());


        // set composite
        if (_compositeOverride != null) {
            g2d.setComposite(_compositeOverride);

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    // Un rectangulo para depuracion
    gr.drawRect(0, 0, width - 1, height - 1);


    // Lo transformamos
    gr.translate((int) (width / 2.0), (int) (height / 2.0));
    gr.rotate(Math.PI / 2 * this.rotation);


    // Rescatamos el descriptor de la compuerta y lo usamos para pintar
    GateDescriptor gateDesc = gate.getGateDescriptor();


    // Invocamos el paint

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                BorderPainter painter = getBorderPainter(i);


                double angle = i * Math.PI / 2;
                g2.setClip(g.getClip()); // Restore initial clip
                g2.translate(intCorners[i][0], intCorners[i][1]);
                g2.rotate(angle);
                g2.clip(shape);
                painter.paint(shape, g2, color, i);
                g2.rotate(-angle);
                g2.translate(-intCorners[i][0], -intCorners[i][1]);
            }

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                g2.setClip(g.getClip()); // Restore initial clip
                g2.translate(intCorners[i][0], intCorners[i][1]);
                g2.rotate(angle);
                g2.clip(shape);
                painter.paint(shape, g2, color, i);
                g2.rotate(-angle);
                g2.translate(-intCorners[i][0], -intCorners[i][1]);
            }
        }
        g2.dispose();
    }

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                    dataRenderer.setSize(Math.max(contentWidth, 0),
                        Math.max(getWidth() - (buttonPadding.left + buttonPadding.right + 2), 0));


                    contentGraphics.translate(buttonPadding.top + 1, buttonPadding.left + 1);
                    contentGraphics.rotate(-Math.PI / 2d);
                    contentGraphics.translate(-dataRenderer.getWidth(), 0);


                    break;
                }
            }

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            for (int i = 0; i < c; i++) {
                float f = ((i + 1) / (float)c);
                Color col = new Color(0.0f, 1 - f, 0.0f);
                copy.setColor(col);
                copy.fillRect(70, 90, 50, 50);
                copy.rotate(-2 * Math.PI / (double)c, 70, 90);
            }
            copy.dispose();


            //Some text
            g2d.rotate(-0.25);

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        for (int i = 0; i < c; i++) {
            float f = ((i + 1) / (float)c);
            Color col = new Color(0.0f, 1 - f, 0.0f);
            copy.setColor(col);
            copy.fillRect(70, 90, 50, 50);
            copy.rotate(-2 * Math.PI / (double)c, 70, 90);
        }
        copy.dispose();


        //Some text
        copy = (Graphics2D)g2d.create();

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        }
        copy.dispose();


        //Some text
        copy = (Graphics2D)g2d.create();
        copy.rotate(-0.25);
        copy.setColor(Color.RED);
        copy.setFont(new Font("sans-serif", Font.PLAIN, 36));
        copy.drawString("Hello world!", 140, 140);
        copy.setColor(Color.RED.darker());
        copy.setFont(new Font("serif", Font.PLAIN, 36));

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