Java Code Examples for java.awt.geom.QuadCurve2D#Double
The following examples show how to use
java.awt.geom.QuadCurve2D#Double .
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Example 1
| Source File: TabbedPaneUI.java From rapidminer-studio with GNU Affero General Public License v3.0 | 6 votes |
|
/**
* Creates the shape for a top tab.
*
* @param x
* @param y
* @param w
* @param h
* @param rTop
* @param addBottom
* if {@code false}, the bottom line below the tab will not be added to the shape
* @return
*/
private static Path2D createTopTabShape(int x, int y, int w, int h, double rTop, boolean addBottom) {
Path2D path = new Path2D.Double();
path.append(new Line2D.Double(x, y + h - 1, x, y + rTop), true);
QuadCurve2D curve = new QuadCurve2D.Double(x, y + rTop, x, y, x + rTop, y);
path.append(curve, true);
path.append(new Line2D.Double(x + rTop, y, x + w - rTop, y), true);
curve = new QuadCurve2D.Double(x + w - rTop, y, x + w, y, x + w, y + rTop);
path.append(curve, true);
path.append(new Line2D.Double(x + w, y + rTop, x + w, y + h), true);
if (addBottom) {
path.append(new Line2D.Double(x + w, y + h - 1, x, y + h - 1), true);
}
return path;
}
Example 2
| Source File: TabbedPaneUI.java From rapidminer-studio with GNU Affero General Public License v3.0 | 6 votes |
|
/**
* Creates the shape for a left tab.
*
* @param x
* @param y
* @param w
* @param h
* @param rLeft
* @param addSide
* if {@code false}, the closing side line right of the tab will not be added to the
* shape
* @return
*/
private static Path2D createLeftTabShape(int x, int y, int w, int h, double rLeft, boolean addSide) {
Path2D path = new Path2D.Double();
path.append(new Line2D.Double(x + w, y + h, x + rLeft, y + h), true);
QuadCurve2D curve = new QuadCurve2D.Double(x + rLeft, y + h, x, y + h, x, y + h - rLeft);
path.append(curve, true);
path.append(new Line2D.Double(x, y + h - rLeft, x, y + rLeft), true);
curve = new QuadCurve2D.Double(x, y + rLeft, x, y, x + rLeft, y);
path.append(curve, true);
path.append(new Line2D.Double(x + rLeft, y, x + w, y), true);
if (addSide) {
path.append(new Line2D.Double(x + w, y, x + w, y + h - 1), true);
}
return path;
}
Example 3
| Source File: TMAbstractEdge.java From ontopia with Apache License 2.0 | 6 votes |
|
protected QuadCurve2D getCurvedLine(int index) {
double x1 = from.drawx;
double x2 = to.drawx;
double y1 = from.drawy;
double y2 = to.drawy;
double midx = calculateMidPointBetween(x1, x2);
double midy = calculateMidPointBetween(y1, y2);
int weight = index / 2;
if (index % 2 == 1) {
weight++;
weight = -weight;
}
Dimension offset = calculateOffset(x1, x2, y1, y2, LOADING * weight);
QuadCurve2D curve = new QuadCurve2D.Double(x1, y1,
midx-offset.width, midy+offset.height,
x2, y2);
return curve;
}
Example 4
| Source File: IntersectionsTest.java From pumpernickel with MIT License | 5 votes |
|
private Shape getShape(int i) {
random.setSeed(i * 1000);
String type = (String) shape.getSelectedItem();
if (type.equals("All")) {
int j = random.nextInt(3);
if (j == 0) {
type = "Lines";
} else if (j == 1) {
type = "Quads";
} else if (j == 2) {
type = "Cubics";
}
}
if (type.equals("Lines")) {
return new Line2D.Double(random.nextDouble() * 100,
random.nextDouble() * 100, random.nextDouble() * 100,
random.nextDouble() * 100);
} else if (type.equals("Quads")) {
return new QuadCurve2D.Double(random.nextDouble() * 100,
random.nextDouble() * 100, random.nextDouble() * 100,
random.nextDouble() * 100, random.nextDouble() * 100,
random.nextDouble() * 100);
} else if (type.equals("Cubics")) {
return new CubicCurve2D.Double(random.nextDouble() * 100,
random.nextDouble() * 100, random.nextDouble() * 100,
random.nextDouble() * 100, random.nextDouble() * 100,
random.nextDouble() * 100, random.nextDouble() * 100,
random.nextDouble() * 100);
}
throw new RuntimeException("unrecognized type \"" + type + "\"");
}
Example 5
| Source File: TMAbstractEdge.java From ontopia with Apache License 2.0 | 5 votes |
|
private QuadCurve2D getFromCurve(int index) {
QuadCurve2D curve = getCurvedLine(index);
QuadCurve2D result = new QuadCurve2D.Double();
curve.subdivide(result,null);
return result;
}
Example 6
| Source File: ShapeUtilities.java From sis with Apache License 2.0 | 5 votes |
|
/**
* Attempts to replace an arbitrary shape by one of the standard Java2D constructs.
* For example if the given {@code path} is a {@link Path2D} containing only a single
* line or a quadratic curve, then this method replaces it by a {@link Line2D} or
* {@link QuadCurve2D} object respectively.
*
* @param path the shape to replace by a simpler Java2D construct.
* This is generally an instance of {@link Path2D}, but not necessarily.
* @return a simpler Java construct, or {@code path} if no better construct is proposed.
*/
public static Shape toPrimitive(final Shape path) {
final PathIterator it = path.getPathIterator(null);
if (!it.isDone()) {
final double[] buffer = new double[6];
if (it.currentSegment(buffer) == PathIterator.SEG_MOVETO) {
it.next();
if (!it.isDone()) {
final double x1 = buffer[0];
final double y1 = buffer[1];
final int code = it.currentSegment(buffer);
it.next();
if (it.isDone()) {
if (isFloat(path)) {
switch (code) {
case PathIterator.SEG_LINETO: return new Line2D.Float((float) x1, (float) y1, (float) buffer[0], (float) buffer[1]);
case PathIterator.SEG_QUADTO: return new QuadCurve2D.Float((float) x1, (float) y1, (float) buffer[0], (float) buffer[1], (float) buffer[2], (float) buffer[3]);
case PathIterator.SEG_CUBICTO: return new CubicCurve2D.Float((float) x1, (float) y1, (float) buffer[0], (float) buffer[1], (float) buffer[2], (float) buffer[3], (float) buffer[4], (float) buffer[5]);
}
} else {
switch (code) {
case PathIterator.SEG_LINETO: return new Line2D.Double(x1,y1, buffer[0], buffer[1]);
case PathIterator.SEG_QUADTO: return new QuadCurve2D.Double(x1,y1, buffer[0], buffer[1], buffer[2], buffer[3]);
case PathIterator.SEG_CUBICTO: return new CubicCurve2D.Double(x1,y1, buffer[0], buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]);
}
}
}
}
}
}
return path;
}
Example 7
| Source File: CaptchaUtils.java From xmanager with Apache License 2.0 | 4 votes |
|
private static void drawGraphic(BufferedImage image, String code){
// 获取图形上下文
Graphics2D g = image.createGraphics();
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
// 图形抗锯齿
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
// 字体抗锯齿
g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
// 设定背景色，淡色
g.setColor(getRandColor(210, 250));
g.fillRect(0, 0, WIDTH, HEIGHT);
// 画小字符背景
Color color = null;
for(int i = 0; i < 20; i++){
color = getRandColor(120, 200);
g.setColor(color);
String rand = String.valueOf(charArray[RANDOM.nextInt(charArray.length)]);
g.drawString(rand, RANDOM.nextInt(WIDTH), RANDOM.nextInt(HEIGHT));
color = null;
}
// 取随机产生的认证码(4位数字)
char[] buffer = code.toCharArray();
for (int i = 0; i < buffer.length; i++){
char _code = buffer[i];
//旋转度数 最好小于45度
int degree = RANDOM.nextInt(28);
if (i % 2 == 0) {
degree = degree * (-1);
}
//定义坐标
int x = 22 * i, y = 21;
//旋转区域
g.rotate(Math.toRadians(degree), x, y);
//设定字体颜色
color = getRandColor(20, 130);
g.setColor(color);
//设定字体，每次随机
g.setFont(RANDOM_FONT[RANDOM.nextInt(RANDOM_FONT.length)]);
//将认证码显示到图象中
g.drawString("" + _code, x + 8, y + 10);
//旋转之后，必须旋转回来
g.rotate(-Math.toRadians(degree), x, y);
}
//图片中间曲线，使用上面缓存的color
g.setColor(color);
//width是线宽,float型
BasicStroke bs = new BasicStroke(3);
g.setStroke(bs);
//画出曲线
QuadCurve2D.Double curve = new QuadCurve2D.Double(0d, RANDOM.nextInt(HEIGHT - 8) + 4, WIDTH / 2, HEIGHT / 2, WIDTH, RANDOM.nextInt(HEIGHT - 8) + 4);
g.draw(curve);
// 销毁图像
g.dispose();
}
Example 8
| Source File: baseDrawerItem.java From brModelo with GNU General Public License v3.0 | 4 votes |
|
@Override
public void DoPaint(Graphics2D g) {
int l = left;
int t = top;
if (!outroPintor) {
if (getTipo() == tipoDrawer.tpMedida) {
l = dono.getL() + left;
t = dono.getT() + top;
} else {
l = dono.getL();
t = dono.getT();
}
}
if (!recivePaint) {
if (isGradiente()) {
g.setPaint(PaintGradiente(g, l, t));
} else {
g.setColor(getCor());
}
}
Shape dr = null;
boolean ok = false;
int[] pts;
switch (tipo) {
case tpElipse:
pts = ArrayDePontos(getElipse());
if (pts.length == 4) {
dr = new Ellipse2D.Double(pts[0], pts[1], pts[2], pts[3]);
}
break;
case tpRetangulo:
pts = ArrayDePontos(getRetangulo());
if (pts.length == 4) {
dr = new Rectangle2D.Double(pts[0], pts[1], pts[2], pts[3]);
}
if (pts.length == 6) {
dr = new RoundRectangle2D.Double(pts[0], pts[1], pts[2], pts[3], pts[4], pts[5]);
}
break;
case tpCurva:
pts = ArrayDePontos(getCurva());
if (pts.length == 8) {
dr = new CubicCurve2D.Double(pts[0], pts[1], pts[2], pts[3], pts[4], pts[5], pts[6], pts[7]);
}
if (pts.length == 6) {
dr = new QuadCurve2D.Double(pts[0], pts[1], pts[2], pts[3], pts[4], pts[5]);
}
break;
case tpArco:
// public final static int OPEN = 0;
// public final static int CHORD = 1;
// public final static int PIE = 2;
pts = ArrayDePontos(getArco());
if (pts.length == 7) {
dr = new Arc2D.Double(pts[0], pts[1], pts[2], pts[3], pts[4], pts[5], pts[6]);
}
break;
case tpImagem:
DrawImagem(g);
ok = true;
break;
case tpMedida:
//# Foi retirado do dezenho porque está feio (DrawerEditor).)
if (vertical == VERTICAL) {
medidaH(g, l, t);
} else {
medidaV(g, l, t);
}
ok = true;
break;
case tpPath:
DrawComplexPath(g, l, t);
ok = true;
break;
default:
g.drawLine(l, t, getWidth(), getHeight());
ok = true;
break;
}
if (dr == null || ok) {
if (dr == null && !ok) {
g.drawString("?", l + 5, t + 5);
}
return;
}
if (isFill()) {
g.fill(dr);
} else {
g.draw(dr);
}
}
Example 9
| Source File: Curve.java From Logisim with GNU General Public License v3.0 | 4 votes |
|
private QuadCurve2D getCurve(HandleGesture gesture) {
Handle[] p = getHandleArray(gesture);
return new QuadCurve2D.Double(p[0].getX(), p[0].getY(), p[1].getX(), p[1].getY(), p[2].getX(), p[2].getY());
}
Example 10
| Source File: Curve.java From Logisim with GNU General Public License v3.0 | 4 votes |
|
public QuadCurve2D getCurve2D() {
return new QuadCurve2D.Double(p0.getX(), p0.getY(), p1.getX(), p1.getY(), p2.getX(), p2.getY());
}
Example 11
| Source File: NaturalSpline.java From audiveris with GNU Affero General Public License v3.0 | 4 votes |
|
/**
* Create the natural spline that interpolates the provided knots
*
* @param xx the abscissae of the provided points
* @param yy the ordinates of the provided points
* @return the resulting spline curve
*/
public static NaturalSpline interpolate (double[] xx,
double[] yy)
{
// Check parameters
Objects.requireNonNull(xx, "NaturalSpline cannot interpolate null arrays");
Objects.requireNonNull(yy, "NaturalSpline cannot interpolate null arrays");
if (xx.length != yy.length) {
throw new IllegalArgumentException(
"NaturalSpline interpolation needs consistent coordinates");
}
// Number of segments
final int n = xx.length - 1;
if (n < 1) {
throw new IllegalArgumentException(
"NaturalSpline interpolation needs at least 2 points");
}
if (n == 1) {
// Use a Line
return new NaturalSpline(new Line2D.Double(xx[0], yy[0], xx[1], yy[1]));
} else if (n == 2) {
// Use a Quadratic (TODO: check this formula...)
// double t = (xx[1] - xx[0]) / (xx[2] - xx[0]);
// double u = 1 - t;
// double cpx = (xx[1] - (u * u * xx[0]) - (t * t * xx[2])) / 2 * t * u;
// double cpy = (yy[1] - (u * u * yy[0]) - (t * t * yy[2])) / 2 * t * u;
return new NaturalSpline(
new QuadCurve2D.Double(
xx[0],
yy[0],
(2 * xx[1]) - ((xx[0] + xx[2]) / 2),
(2 * yy[1]) - ((yy[0] + yy[2]) / 2),
xx[2],
yy[2]));
} else {
// Use a sequence of cubics
double[] dx = getCubicDerivatives(xx);
double[] dy = getCubicDerivatives(yy);
Shape[] curves = new Shape[n];
for (int i = 0; i < n; i++) {
// Build each segment curve
curves[i] = new CubicCurve2D.Double(
xx[i],
yy[i],
xx[i] + (dx[i] / 3),
yy[i] + (dy[i] / 3),
xx[i + 1] - (dx[i + 1] / 3),
yy[i + 1] - (dy[i + 1] / 3),
xx[i + 1],
yy[i + 1]);
}
return new NaturalSpline(curves);
}
}
Example 12
| Source File: TMAbstractEdge.java From ontopia with Apache License 2.0 | 4 votes |
|
private QuadCurve2D getToCurve(int index) {
QuadCurve2D curve = getCurvedLine(index);
QuadCurve2D result = new QuadCurve2D.Double();
curve.subdivide(null,result);
return result;
}
Example 13
| Source File: TMAbstractEdge.java From ontopia with Apache License 2.0 | 4 votes |
|
private Point getMiddleOf(QuadCurve2D curve) {
QuadCurve2D result = new QuadCurve2D.Double();
curve.subdivide(result,null);
return new Point((int)result.getP2().getX(), (int)result.getP2().getY());
}
Example 14
| Source File: NaturalSpline.java From libreveris with GNU Lesser General Public License v3.0 | 4 votes |
|
/**
* Create the natural spline that interpolates the provided knots
*
* @param xx the abscissae of the provided points
* @param yy the ordinates of the provided points
* @return the resulting spline curve
*/
public static NaturalSpline interpolate (double[] xx,
double[] yy)
{
// Check parameters
if ((xx == null) || (yy == null)) {
throw new IllegalArgumentException(
"NaturalSpline cannot interpolate null arrays");
}
if (xx.length != yy.length) {
throw new IllegalArgumentException(
"NaturalSpline interpolation needs consistent coordinates");
}
// Number of segments
final int n = xx.length - 1;
if (n < 1) {
throw new IllegalArgumentException(
"NaturalSpline interpolation needs at least 2 points");
}
if (n == 1) {
// Use a Line
return new NaturalSpline(
new Line2D.Double(xx[0], yy[0], xx[1], yy[1]));
} else if (n == 2) {
// Use a Quadratic (TODO: check this formula...)
// double t = (xx[1] - xx[0]) / (xx[2] - xx[0]);
// double u = 1 - t;
// double cpx = (xx[1] - (u * u * xx[0]) - (t * t * xx[2])) / 2 * t * u;
// double cpy = (yy[1] - (u * u * yy[0]) - (t * t * yy[2])) / 2 * t * u;
return new NaturalSpline(
new QuadCurve2D.Double(
xx[0],
yy[0],
(2 * xx[1]) - ((xx[0] + xx[2]) / 2),
(2 * yy[1]) - ((yy[0] + yy[2]) / 2),
xx[2],
yy[2]));
} else {
// Use a sequence of cubics
double[] dx = getCubicDerivatives(xx);
double[] dy = getCubicDerivatives(yy);
Shape[] curves = new Shape[n];
for (int i = 0; i < n; i++) {
// Build each segment curve
curves[i] = new CubicCurve2D.Double(
xx[i],
yy[i],
xx[i] + (dx[i] / 3),
yy[i] + (dy[i] / 3),
xx[i + 1] - (dx[i + 1] / 3),
yy[i + 1] - (dy[i + 1] / 3),
xx[i + 1],
yy[i + 1]);
}
return new NaturalSpline(curves);
}
}
Example 15
| Source File: StrokeSettingsPanel.java From Pixelitor with GNU General Public License v3.0 | 4 votes |
|
private static JPanel createStrokePreviewPanel(StrokeParam sp) {
JComponent preview = new JComponent() {
final Dimension size = new Dimension(120, 120);
@Override
protected void paintComponent(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON);
g2.setColor(Color.WHITE);
int width = getWidth();
int height = getHeight();
g2.fillRect(0, 0, width, height);
// Line2D shape = new Line2D.Double(width * 0.1, height * 0.5, width * 0.9, height * 0.5);
QuadCurve2D.Double shape = new QuadCurve2D.Double(
width * 0.1, height * 0.4,
width * 0.5, height * 0.8,
width * 0.9, height * 0.4
);
g2.setColor(Color.BLACK);
g2.setStroke(sp.createStroke());
g2.draw(shape);
}
@Override
public Dimension getMinimumSize() {
return size;
}
@Override
public Dimension getPreferredSize() {
return size;
}
};
sp.setPreviewer(preview);
var p = new JPanel(new BorderLayout());
p.add(preview, CENTER);
p.setBorder(createTitledBorder("Stroke Preview"));
return p;
}
Example 16
| Source File: ShapeUtilities.java From sis with Apache License 2.0 | 3 votes |
|
/**
* Returns a quadratic curve passing by the 3 given points. There is an infinity of quadratic curves passing by
* 3 points. We can express the curve we are looking for as a parabolic equation of the form {@code y=ax²+bx+c}
* but where the <var>x</var> axis is not necessarily horizontal. The orientation of the <var>x</var> axis in
* the above equation is determined by the {@code horizontal} parameter:
*
* <ul>
* <li>A value of {@code true} means that the <var>x</var> axis must be horizontal. The quadratic curve
* will then looks like an ordinary parabolic curve as we see in mathematic school book.</li>
* <li>A value of {@code false} means that the <var>x</var> axis must be parallel to the
* line segment joining the {@code P0} and {@code P2} ending points.</li>
* </ul>
*
* Note that if {@code P0.y == P2.y}, then both {@code horizontal} values produce the same result.
*
* @param x1 <var>x</var> value of the starting point.
* @param y1 <var>y</var> value of the starting point.
* @param px <var>x</var> value of a passing point.
* @param py <var>y</var> value of a passing point.
* @param x2 <var>x</var> value of the ending point.
* @param y2 <var>y</var> value of the ending point.
* @param horizontal if {@code true}, the <var>x</var> axis is considered horizontal while computing the
* {@code y=ax²+bx+c} equation terms. If {@code false}, it is considered parallel to the line
* joining the {@code P0} and {@code P2} points.
* @return a quadratic curve passing by the given points. The curve starts at {@code P0} and ends at {@code P2}.
* If two points are too close or if the three points are colinear, then this method returns {@code null}.
*
* @todo This method is used by Geotk (a sandbox for code that may migrate to SIS), but not yet by SIS.
* We temporarily keep this code here, but may delete or move it elsewhere in a future SIS version
* depending whether we port to SIS the sandbox code.
*/
public static QuadCurve2D.Double fitParabol(final double x1, final double y1,
final double px, final double py,
final double x2, final double y2,
final boolean horizontal)
{
final Point2D.Double p = parabolicControlPoint(x1, y1, px, py, x2, y2, horizontal);
return (p != null) ? new QuadCurve2D.Double(x1, y1, p.x, p.y, x2, y2) : null;
}
