Java Area.transform方法代码示例

import java.awt.geom.Area; //导入方法依赖的package包/类
/**
 * Draws the needle.
 *
 * @param g2  the graphics device.
 * @param plotArea  the plot area.
 * @param rotate  the rotation point.
 * @param angle  the angle.
 */
protected void drawNeedle(Graphics2D g2, Rectangle2D plotArea, 
                          Point2D rotate, double angle) {

    Arc2D shape = new Arc2D.Double(Arc2D.PIE);
    double radius = plotArea.getHeight();
    double halfX = plotArea.getWidth() / 2;
    double diameter = 2 * radius;

    shape.setFrame(plotArea.getMinX() + halfX - radius ,
                   plotArea.getMinY() - radius,
                   diameter, diameter);
    radius = Math.toDegrees(Math.asin(halfX / radius));
    shape.setAngleStart(270 - radius);
    shape.setAngleExtent(2 * radius);

    Area s = new Area(shape);

    if ((rotate != null) && (angle != 0)) {
        /// we have rotation houston, please spin me
        getTransform().setToRotation(angle, rotate.getX(), rotate.getY());
        s.transform(getTransform());
    }

    defaultDisplay(g2, s);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/**
 * Draw a semi-trasparent area that is the filtered area
 * @param g The graphic object
 * @param filteredArea The filtered area
 */
public void drawFiltArea(Graphics2D g, Area filtArea) {
	AffineTransform t = new AffineTransform();
	t.scale(scale / 100, scale / 100);
	AffineTransform t2 = new AffineTransform();
	t2.translate(tran_x, tran_y);

	filtArea.transform(t);
	filtArea.transform(t2);

	Stroke oldStro = g.getStroke();
	Stroke stroke = new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
	g.setStroke(stroke);

	g.setColor(Color.GRAY);
	Composite oldComp = g.getComposite();
	Composite alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.3f);
	g.setComposite(alphaComp);

	g.fill(filtArea);
	g.setComposite(oldComp);
	g.setStroke(oldStro);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/**
 * Draw a semi-trasparent area that is the filtered area
 * @param g The graphic object
 * @param filteredArea The filtered area
 */
public void drawFiltArea(Graphics2D g, Area filtArea) {
	AffineTransform t = new AffineTransform();
	t.scale(scale / 100, scale / 100);
	AffineTransform t2 = new AffineTransform();
	t2.translate(tran_x, tran_y);

	filtArea.transform(t);
	filtArea.transform(t2);

	Stroke oldStro = g.getStroke();
	Stroke stroke = new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
	g.setStroke(stroke);

	g.setColor(Color.gray);
	Composite oldComp = g.getComposite();
	Composite alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.3f);
	g.setComposite(alphaComp);

	g.fill(filtArea);
	g.setComposite(oldComp);
	g.setStroke(oldStro);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/**
 * Draws the needle.
 *
 * @param g2  the graphics device.
 * @param plotArea  the plot area.
 * @param rotate  the rotation point.
 * @param angle  the angle.
 */
protected void drawNeedle(Graphics2D g2, Rectangle2D plotArea, Point2D rotate, double angle) {

    Arc2D shape = new Arc2D.Double(Arc2D.PIE);
    double radius = plotArea.getHeight();
    double halfX = plotArea.getWidth() / 2;
    double diameter = 2 * radius;

    shape.setFrame(plotArea.getMinX() + halfX - radius ,
                   plotArea.getMinY() - radius,
                   diameter, diameter);
    radius = Math.toDegrees(Math.asin(halfX / radius));
    shape.setAngleStart(270 - radius);
    shape.setAngleExtent(2 * radius);

    Area s = new Area(shape);

    if ((rotate != null) && (angle != 0)) {
        /// we have rotation houston, please spin me
        getTransform().setToRotation(angle, rotate.getX(), rotate.getY());
        s.transform(getTransform());
    }

    defaultDisplay(g2, s);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
@Override
void nakresli() {
	vystreduj();

	// Area a1 = new Area([triangle 0,0 => 8,0 => 0,8]);
	// Area a2 = new Area([triangle 0,0 => 8,0 => 8,8]);
	// a1.add(a2);
	final Area poly = new Area(new Polygon(new int[] { 0, 1, 1, 5, 0 }, new int[] { 0, 1, 7, 7, 12 }, 5));
	final Area a = new Area();

	final AffineTransform rotace = new AffineTransform();
	rotace.rotate(Math.PI / 2);
	final AffineTransform zrcadlo = new AffineTransform();
	zrcadlo.scale(1, -1);
	for (int i = 0; i < 4; i++) {
		a.transform(zrcadlo);
		a.add(poly);
		a.transform(zrcadlo);
		a.add(poly);
		a.transform(rotace);
	}
	g.setColor(Color.GREEN);
	g.fill(a);
	g.setColor(Color.BLACK);
	g.draw(a);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/** Calculating the scaling ratio for the shape to fit the dimensions provided. */
protected float calculateMultiplier(Dimension size) {
	Shape shape = getShape();
	Area base = new Area(shape);
	AffineTransform transform = new AffineTransform();
	Rectangle2D r = ShapeBounds.getBounds(base);
	transform.translate(size.width/2f-r.getCenterX(),size.height/2f-r.getCenterY());
	base.transform(transform);
	r = ShapeBounds.getBounds(base,r);
	float min = 0;
	float max = 1;
	Rectangle2D boundsRect = new Rectangle2D.Float(0,0,size.width,size.height);
	while(isOK(base,r,boundsRect,max)==false) {
		min = max;
		max*=1.2;
	}
	float f = calculateMultiplier(base,r,boundsRect,min,max);
	isOK(base,r,boundsRect,f);
	return f;
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
@Override
public void doLayout() {
	int height = BlockUtils.VGAP, cwidth=150,width=150;
	StringBuilder svg = new StringBuilder(BlockRender.getBlockTop(connectionType));
	for (BlockLine line : lines) {
		line.setLocation(connectionType==ConnectionType.Left?5:0, height);
		svg.append(BlockRender.getBlockSide(line.getLineType(), line.getX(), line.getY(), line.getComponentWidth(), line.getComponentHeight()));
		height+=line.getHeight()+BlockUtils.VGAP;
		if(line.getComponentWidth()>cwidth) cwidth=line.getComponentWidth();
		if(line.getWidth()>width) width=line.getWidth();
	}
	svg.append(BlockRender.getBlockBottom(connectionType, 0, 0,cwidth,height>30?height:30));
	if(next!=null){
		next.setLocation(connectionType==ConnectionType.Left?5:0, height);
		next.doLayout();
		if(next.getWidth()>width) width=next.getWidth();
		height+=next.getHeight();
	}

	area = new Area(BlockRender.getPathFromSVG(svg.toString()));
	if(connectionType==ConnectionType.Left) area.transform(AffineTransform.getTranslateInstance(5, 0));
	setSize(width+1, height+1);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
@Override
public void clip(Shape s) {	
	if(s==null) return;
	
	if(clipping==null) {
		setClip(s);
		return;
	}
	
	Area a1 = new Area(clipping);
	Area a2 = new Area(s);
	a2.transform(transform);
	a1.intersect(a2);
	
	if(a1.isRectangular()) {
		clipping = a1.getBounds2D();
	} else {
		clipping = a1;
	}		
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
@Override
public Shape getClip() {
	if(clipping==null)
		return null;
	
	try {
		Area area = new Area(clipping);
		area.transform(transform.createInverse());
		if(area.isRectangular())
			return area.getBounds2D();
		return area;
	} catch(NoninvertibleTransformException t) {
		RuntimeException e2 = new RuntimeException();
		e2.initCause(t);
		throw e2;
	}
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/** Return true if this instruction is affected by the current clipping.
 * (Returns false if no clipping is present.)
 */
public boolean isClipped() {
	if(clipping==null) return false;
	if(isClipped==null) {
		Stroke currentStroke = stroke;
		if(currentStroke instanceof BasicStroke) {
			BasicStroke bs = (BasicStroke)currentStroke;
			currentStroke = new BasicStroke(bs.getLineWidth(),
					BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);
		}
		Area strokeArea = new Area(currentStroke.createStrokedShape(path));
		strokeArea.transform(transform);
		Area clipArea = new Area(clipping);
		
		strokeArea.subtract(clipArea);
		
		Rectangle2D r = strokeArea.getBounds2D();
		isClipped = new Boolean( r.getWidth()>.00001 && r.getHeight()>.00001 );
	}
	return isClipped.booleanValue();
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/**
 * Returns the area on the floor of the given staircase.
 */
public Area getAreaOnFloor(HomePieceOfFurniture staircase)
{
	if (staircase.getStaircaseCutOutShape() == null)
	{
		throw new IllegalArgumentException("No cut out shape associated to piece");
	}
	Shape shape = getShape(staircase.getStaircaseCutOutShape());
	Area staircaseArea = new Area(shape);
	if (staircase.isModelMirrored())
	{
		staircaseArea = getMirroredArea(staircaseArea);
	}
	AffineTransform staircaseTransform = AffineTransform.getTranslateInstance(
			staircase.getX() - staircase.getWidth() / 2, staircase.getY() - staircase.getDepth() / 2);
	staircaseTransform.concatenate(AffineTransform.getRotateInstance(staircase.getAngle(), staircase.getWidth() / 2,
			staircase.getDepth() / 2));
	staircaseTransform.concatenate(AffineTransform.getScaleInstance(staircase.getWidth(), staircase.getDepth()));
	staircaseArea.transform(staircaseTransform);
	return staircaseArea;
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
private Shape getShadowMask( Shape parentMask ) {
    Area area = new Area(parentMask);

    AffineTransform tx = new AffineTransform();
    tx.translate(SHADOW_SIZE, SHADOW_SIZE );//Math.sin(ANGLE)*(getHeight()+SHADOW_SIZE), 0);
    area.transform(tx);
    area.subtract(new Area(parentMask));
    return area;
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/**
 * Draws the needle.
 *
 * @param g2  the graphics device.
 * @param plotArea  the plot area.
 * @param rotate  the rotation point.
 * @param angle  the angle.
 */
@Override
protected void drawNeedle(Graphics2D g2, Rectangle2D plotArea,
                          Point2D rotate, double angle) {

    Arc2D shape = new Arc2D.Double(Arc2D.PIE);
    double radius = plotArea.getHeight();
    double halfX = plotArea.getWidth() / 2;
    double diameter = 2 * radius;

    shape.setFrame(plotArea.getMinX() + halfX - radius ,
                   plotArea.getMinY() - radius,
                   diameter, diameter);
    radius = Math.toDegrees(Math.asin(halfX / radius));
    shape.setAngleStart(270 - radius);
    shape.setAngleExtent(2 * radius);

    Area s = new Area(shape);

    if ((rotate != null) && (angle != 0)) {
        /// we have rotation houston, please spin me
        getTransform().setToRotation(angle, rotate.getX(), rotate.getY());
        s.transform(getTransform());
    }

    defaultDisplay(g2, s);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
/**
 * Draws the needle.
 *
 * @param g2  the graphics device.
 * @param plotArea  the plot area.
 * @param rotate  the rotation point.
 * @param angle  the angle.
 */
@Override
protected void drawNeedle(Graphics2D g2, Rectangle2D plotArea,
        Point2D rotate, double angle) {

    Arc2D shape = new Arc2D.Double(Arc2D.PIE);
    double radius = plotArea.getHeight();
    double halfX = plotArea.getWidth() / 2;
    double diameter = 2 * radius;

    shape.setFrame(plotArea.getMinX() + halfX - radius,
                   plotArea.getMinY() - radius,
                   diameter, diameter);
    radius = Math.toDegrees(Math.asin(halfX / radius));
    shape.setAngleStart(270 - radius);
    shape.setAngleExtent(2 * radius);

    Area s = new Area(shape);

    if ((rotate != null) && (angle != 0)) {
        /// we have rotation houston, please spin me
        getTransform().setToRotation(angle, rotate.getX(), rotate.getY());
        s.transform(getTransform());
    }

    defaultDisplay(g2, s);
}
 

import java.awt.geom.Area; //导入方法依赖的package包/类
public void paint(Graphics g,double x,double y,RenderedShape otherShape,boolean debug) {
	Graphics2D g2 = (Graphics2D)g.create();
	Area clip = new Area(body);
	clip.transform(AffineTransform.getTranslateInstance(dx, dy));
	clip.intersect(new Area(new Ellipse2D.Double(x - strokeWidth*3/2, y - strokeWidth*3/2, strokeWidth*3, strokeWidth*3)));
	
	Area otherBody = new Area(otherShape.body);
	otherBody.transform(AffineTransform.getTranslateInstance(otherShape.dx, otherShape.dy));
	clip.intersect(otherBody);
	
	g2.clip(clip);
	if(debug) {
		g2.setStroke(new BasicStroke(5));
		g2.setColor(Color.green);
		g2.draw(clip);
	}
	g2.translate(dx, dy);
	if(debug) {
		g2.setColor(Color.cyan);
		g2.draw(body);
	}
	g2.translate(imageBounds.x, imageBounds.y);
	if(debug) {
		g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .75f));
	}
	g2.drawImage(image,0,0,null);
	g2.dispose();
}