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package example; |
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import org.gannacademy.cdf.graphics.Text; |
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import org.gannacademy.cdf.graphics.geom.Rectangle; |
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import org.gannacademy.cdf.graphics.geom.*; |
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import org.gannacademy.cdf.graphics.ui.AppWindow; |
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import java.awt.*; |
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import java.awt.geom.Point2D; |
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public class TransformationDemo extends AppWindow { |
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Path p, q, r, s; |
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Rectangle a; |
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RoundRectangle b; |
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Ellipse c; |
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Arc d; |
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boolean inflation = true; |
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int steps = 0; |
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@Override |
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protected void setup() { |
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Color |
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transparentRed = new Color(1f, 0f, 0f, 0.5f), |
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transparentBlue = new Color(0f, 0f, 1f, 0.5f); |
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a = new Rectangle(100, 50, 150, 100, getDrawingPanel()); |
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a.setFillColor(transparentRed); |
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b = new RoundRectangle(350, 50, 150, 100, 25, 25, getDrawingPanel()); |
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b.setFillColor(transparentRed); |
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c = new Ellipse(100, 250, 150, 100, getDrawingPanel()); |
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c.setFillColor(transparentRed); |
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d = new Arc(350, 250, 150, 100, 117, 312, getDrawingPanel()); |
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d.setFillColor(transparentRed); |
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p = a.getAsPath(); |
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p.setFillColor(transparentBlue); |
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q = b.getAsPath(); |
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q.setFillColor(transparentBlue); |
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r = c.getAsPath(); |
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r.setFillColor(transparentBlue); |
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s = d.getAsPath(); |
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s.setFillColor(transparentBlue); |
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Text t = new Text("Translate", 0, 0, getDrawingPanel()); |
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t.setLocation(a.getX() + (a.getWidth() - t.getWidth()) / 2, a.getY() + (a.getHeight() - t.getHeight()) / 2 + t.getMaxAscent()); |
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t = new Text("Shear", 0, 0, getDrawingPanel()); |
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t.setLocation(b.getX() + (b.getWidth() - t.getWidth()) / 2, b.getY() + (b.getHeight() - t.getHeight()) / 2 + t.getMaxAscent()); |
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t = new Text("Scale", 0, 0, getDrawingPanel()); |
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t.setLocation(c.getX() + (c.getWidth() - t.getWidth()) / 2, c.getY() + (c.getHeight() - t.getHeight()) / 2 + t.getMaxAscent()); |
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t = new Text("Rotate", 0, 0, getDrawingPanel()); |
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t.setLocation(d.getX() + (d.getWidth() - t.getWidth()) / 2, d.getY() + (d.getHeight() - t.getHeight()) / 2 + t.getMaxAscent()); |
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} |
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@Override |
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protected void loop() { |
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steps++; |
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if (steps > 100) { |
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inflation = !inflation; |
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steps = 0; |
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} |
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p.translate(.6 * (inflation ? 1 : 0 - 1), .4 * (inflation ? 1 : 0 - 1)); |
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Point2D p = r.getLocation(); |
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r.scale(1 + (inflation ? 1 : 0 - 1) * .01, 1 + (inflation ? 1 : 0 - 1) * .01); |
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r.setLocation(p.getX(), p.getY()); |
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p = q.getLocation(); |
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q.shear(.01 * (inflation ? 1 : 0 - 1), .01 * (inflation ? 1 : 0 - 1)); |
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q.setLocation(p.getX(), p.getY()); |
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s.rotate(Math.PI / 180 * (inflation ? 1 : 0 - 1), 425, 300); |
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sleep(100); |
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} |
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public static void main(String[] args) { |
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new TransformationDemo(); |
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} |
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} |
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gann-cdf /
graphics
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