/**
* Writes the <code>shape</code>, <code>coords</code>, <code>href</code>,
* <code>nohref</code> Attribute for the specified figure and ellipse.
*
* @return Returns true, if the circle is inside of the image bounds.
*/
private boolean writeCircleAttributes(IXMLElement elem, SVGFigure f, Ellipse2D.Double ellipse) {
AffineTransform t = TRANSFORM.getClone(f);
if (t == null) {
t = drawingTransform;
} else {
t.preConcatenate(drawingTransform);
}
if ((t.getType() &
(AffineTransform.TYPE_UNIFORM_SCALE | AffineTransform.TYPE_TRANSLATION)) ==
t.getType() &&
ellipse.width == ellipse.height
) {
Point2D.Double start = new Point2D.Double(ellipse.x, ellipse.y);
Point2D.Double end = new Point2D.Double(ellipse.x + ellipse.width, ellipse.y + ellipse.height);
t.transform(start, start);
t.transform(end, end);
ellipse.x = Math.min(start.x, end.x);
ellipse.y = Math.min(start.y, end.y);
ellipse.width = Math.abs(start.x - end.x);
ellipse.height = Math.abs(start.y - end.y);
elem.setAttribute("shape", "circle");
elem.setAttribute("coords",
(int) (ellipse.x + ellipse.width / 2d)+","+
(int) (ellipse.y + ellipse.height / 2d)+","+
(int) (ellipse.width / 2d)
);
writeHrefAttribute(elem, f);
return bounds.intersects(ellipse.getBounds());
} else {
return writePolyAttributes(elem, f, (Shape) ellipse);
}
}
/**
* Transforms the figure.
*
* @param tx the transformation.
*/
public void transform(AffineTransform tx) {
if (TRANSFORM.get(this) != null
|| tx.getType() != (tx.getType() & AffineTransform.TYPE_TRANSLATION)) {
if (TRANSFORM.get(this) == null) {
TRANSFORM.basicSet(this, (AffineTransform) tx.clone());
} else {
AffineTransform t = TRANSFORM.getClone(this);
t.preConcatenate(tx);
TRANSFORM.basicSet(this, t);
}
} else {
for (int i = 0; i < coordinates.length; i++) {
tx.transform(coordinates[i], coordinates[i]);
}
if (FILL_GRADIENT.get(this) != null && !FILL_GRADIENT.get(this).isRelativeToFigureBounds()) {
Gradient g = FILL_GRADIENT.getClone(this);
g.transform(tx);
FILL_GRADIENT.basicSet(this, g);
}
if (STROKE_GRADIENT.get(this) != null
&& !STROKE_GRADIENT.get(this).isRelativeToFigureBounds()) {
Gradient g = STROKE_GRADIENT.getClone(this);
g.transform(tx);
STROKE_GRADIENT.basicSet(this, g);
}
}
invalidate();
}
/**
* Code to paint the specific shape
*
* @param w2v 2D affine transform
* @param g graphics context
*/
public void paintShape(Graphics2D g, AffineTransform w2v) {
double x = startPoint.getX();
double y = startPoint.getY();
double xEnd = endPoint.getX();
double yEnd = endPoint.getY();
g.setStroke(new BasicStroke(this.getThickness(), BasicStroke.CAP_ROUND, BasicStroke.CAP_ROUND));
Point2D v0 = w2v.transform(new Point2D.Double(x, y), null);
int ix = (int) v0.getX();
int iy = (int) v0.getY();
Point2D v1 = w2v.transform(new Point2D.Double(xEnd, yEnd), null);
g.drawLine(ix, iy, (int) v1.getX(), (int) v1.getY());
}
public synchronized void paint(Graphics gin) {
Graphics2D g = (Graphics2D) gin;
if (im == null) return;
int height = getHeight();
int width = getWidth();
if (fit) {
t = new AffineTransform();
double scale = Math.min(((double) width) / im.getWidth(), ((double) height) / im.getHeight());
// we'll re-center the transform in a moment.
t.scale(scale, scale);
}
// if the image (in either X or Y) is smaller than the view port, then center
// the image with respect to that axis.
double mwidth = im.getWidth() * t.getScaleX();
double mheight = im.getHeight() * t.getScaleY();
if (mwidth < width)
t.preConcatenate(
AffineTransform.getTranslateInstance((width - mwidth) / 2.0 - t.getTranslateX(), 0));
if (mheight < height)
t.preConcatenate(
AffineTransform.getTranslateInstance(0, (height - mheight) / 2.0 - t.getTranslateY()));
// if we're allowing panning (because only a portion of the image is visible),
// don't allow translations that show less information that is possible.
Point2D topleft = t.transform(new Point2D.Double(0, 0), null);
Point2D bottomright = t.transform(new Point2D.Double(im.getWidth(), im.getHeight()), null);
if (mwidth > width) {
if (topleft.getX() > 0)
t.preConcatenate(AffineTransform.getTranslateInstance(-topleft.getX(), 0));
if (bottomright.getX() < width)
t.preConcatenate(AffineTransform.getTranslateInstance(width - bottomright.getX(), 0));
// t.translate(width-bottomright.getX(), 0);
}
if (mheight > height) {
if (topleft.getY() > 0)
t.preConcatenate(AffineTransform.getTranslateInstance(0, -topleft.getY()));
if (bottomright.getY() < height)
t.preConcatenate(AffineTransform.getTranslateInstance(0, height - bottomright.getY()));
}
g.drawImage(im, t, null);
}
public float getFontSize() {
// return FONT_SIZE.get(this).floatValue();
Point2D.Double p = new Point2D.Double(0, FONT_SIZE.get(this));
AffineTransform tx = TRANSFORM.get(this);
if (tx != null) {
tx.transform(p, p);
Point2D.Double p0 = new Point2D.Double(0, 0);
tx.transform(p0, p0);
p.y -= p0.y;
/*
try {
tx.inverseTransform(p, p);
} catch (NoninvertibleTransformException ex) {
ex.printStackTrace();
}*/
}
return (float) Math.abs(p.y);
}
/**
* WhiteboardShapeLine constructor
*
* @param id String that uniquely identifies this WhiteboardObject.
* @param t number of pixels that this object (or its border)
* @param c WhiteboardShapeLine's color (or rather it's border)
* @param startPoint the start coordinates of this line.
* @param endPoint the end coordinates of this line.
* @param v2w 2D affine transform
*/
public WhiteboardShapeLine(
String id,
int t,
Color c,
WhiteboardPoint startPoint,
WhiteboardPoint endPoint,
AffineTransform v2w) {
super(id);
this.setThickness(t);
setColor(c);
Point2D v0 = new Point2D.Double(startPoint.getX(), startPoint.getY());
Point2D w0 = v2w.transform(v0, null);
this.startPoint = new WhiteboardPoint(w0.getX(), w0.getY());
Point2D v1 = new Point2D.Double(endPoint.getX(), endPoint.getY());
Point2D w1 = v2w.transform(v1, null);
this.endPoint = new WhiteboardPoint(w1.getX(), w1.getY());
}
/**
* Writes the <code>shape</code>, <code>coords</code>, <code>href</code>,
* <code>nohref</code> Attribute for the specified figure and rectangle.
*
* @return Returns true, if the rect is inside of the image bounds.
*/
private boolean writeRectAttributes(IXMLElement elem, SVGFigure f, Rectangle2D.Double rect) {
AffineTransform t = TRANSFORM.getClone(f);
if (t == null) {
t = drawingTransform;
} else {
t.preConcatenate(drawingTransform);
}
if ((t.getType() &
(AffineTransform.TYPE_UNIFORM_SCALE | AffineTransform.TYPE_TRANSLATION)) ==
t.getType()
) {
Point2D.Double start = new Point2D.Double(rect.x, rect.y);
Point2D.Double end = new Point2D.Double(rect.x + rect.width, rect.y + rect.height);
t.transform(start, start);
t.transform(end, end);
Rectangle r = new Rectangle(
(int) Math.min(start.x, end.x),
(int) Math.min(start.y, end.y),
(int) Math.abs(start.x - end.x),
(int) Math.abs(start.y - end.y)
);
elem.setAttribute("shape", "rect");
elem.setAttribute("coords",
r.x + ","+
r.y + ","+
(r.x + r.width) + ","+
(r.y + r.height)
);
writeHrefAttribute(elem, f);
return bounds.intersects(r);
} else {
return writePolyAttributes(elem, f, (Shape) rect);
}
}
public void vec2FieldMagnitude(Field field, AffineTransform ftoi) {
AffineTransform itof = null;
try {
itof = ftoi.createInverse();
} catch (NoninvertibleTransformException niv) {
TDebug.println(0, "NoninvertibleTransformException: " + niv);
}
Vector3d v = new Vector3d();
Point2D.Double p = new Point2D.Double();
for (int j = 0, k = 0; j < height; ++j)
for (int i = 0; i < width; ++i, ++k) {
p.x = i;
p.y = j;
itof.transform(p, p);
v = field.get(p.x, p.y, 0.0);
f[k] = (float) Math.sqrt(v.x * v.x + v.y * v.y);
}
}
public void vec2FieldZero(Field field, AffineTransform ftoi) {
AffineTransform itof = null;
try {
itof = ftoi.createInverse();
} catch (NoninvertibleTransformException niv) {
TDebug.println(0, "NoninvertibleTransformException: " + niv);
}
Vector3d v = new Vector3d();
Point2D.Double p = new Point2D.Double();
for (int j = 0, k = 0; j < height; ++j)
for (int i = 0; i < width; ++i, ++k) {
p.x = i;
p.y = j;
itof.transform(p, p);
v = field.get(p.x, p.y, 0.0);
if ((v.x == 0.0) && (v.y == 0.0)) f[k] = 1.0f;
else f[k] = 0.0f;
}
}
// SHAPE AND BOUNDS
@Override
public void transform(AffineTransform tx) {
tx.transform(origin, origin);
}
/**
* Sets the CardinalityPoints attribute of the RelationLine object
*
* @todo refactor this duplicate code!!!
*/
private void setCardinalityPoints() {
// compute vector of length 1
_mainLength =
Point2D.distance(
_mainLine.getX1(), _mainLine.getY1(), _mainLine.getX2(), _mainLine.getY2());
double vx = (_mainLine.getX2() - _mainLine.getX1()) / _mainLength;
double vy = (_mainLine.getY2() - _mainLine.getY1()) / _mainLength;
double cardx = 20.0 * vx;
double cardy = 20.0 * vy;
double arrowx = 30.0 * vx;
double arrowy = 30.0 * vy;
if (_leftIsWest) {
_leftArrowPoint.setLocation(_mainLine.getX1() + cardx, _mainLine.getY1() + cardy);
_rightArrowPoint.setLocation(_mainLine.getX2() - cardx, _mainLine.getY2() - cardy);
// The left-side arrow head
_temp.setLocation(_mainLine.getX1() + arrowx, _mainLine.getY1() + arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint1);
_leftArrowLine1.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint1.getX(),
_leftArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint2);
_leftArrowLine2.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint2.getX(),
_leftArrowPoint2.getY());
_arrowTransform.setToRotation(Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftCardinalityPoint);
_arrowTransform.setToRotation(-Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftFkPoint);
// The right-side arrow head
_temp.setLocation(_mainLine.getX2() - arrowx, _mainLine.getY2() - arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint1);
_rightArrowLine1.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint1.getX(),
_rightArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint2);
_rightArrowLine2.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint2.getX(),
_rightArrowPoint2.getY());
_arrowTransform.setToRotation(-Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightCardinalityPoint);
_arrowTransform.setToRotation(Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightFkPoint);
} else {
_leftArrowPoint.setLocation(_mainLine.getX2() - cardx, _mainLine.getY2() - cardy);
_rightArrowPoint.setLocation(_mainLine.getX1() + cardx, _mainLine.getY1() + cardy);
// The left-side arrow head
_temp.setLocation(_mainLine.getX2() - arrowx, _mainLine.getY2() - arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint1);
_leftArrowLine1.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint1.getX(),
_leftArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftArrowPoint2);
_leftArrowLine2.setLine(
_leftArrowPoint.getX(),
_leftArrowPoint.getY(),
_leftArrowPoint2.getX(),
_leftArrowPoint2.getY());
_arrowTransform.setToRotation(Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftCardinalityPoint);
_arrowTransform.setToRotation(-Math.PI / 2, _leftArrowPoint.getX(), _leftArrowPoint.getY());
_arrowTransform.transform(_temp, _leftFkPoint);
// The right-side arrow head
_temp.setLocation(_mainLine.getX1() + arrowx, _mainLine.getY1() + arrowy);
_arrowTransform.setToRotation(Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint1);
_rightArrowLine1.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint1.getX(),
_rightArrowPoint1.getY());
_arrowTransform.setToRotation(-Math.PI / 6, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightArrowPoint2);
_rightArrowLine2.setLine(
_rightArrowPoint.getX(),
_rightArrowPoint.getY(),
_rightArrowPoint2.getX(),
_rightArrowPoint2.getY());
_arrowTransform.setToRotation(-Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightCardinalityPoint);
_arrowTransform.setToRotation(Math.PI / 2, _rightArrowPoint.getX(), _rightArrowPoint.getY());
_arrowTransform.transform(_temp, _rightFkPoint);
}
}
public AffineTransform getAffineTransform(
int width, int height, double[] _xyzSW, double[] _xyzSE, double[] _xyzNW) {
int[] cornerNW = projection.screenProjection(_xyzNW);
int[] cornerSE = projection.screenProjection(_xyzSE);
int[] cornerSW = projection.screenProjection(_xyzSW);
double[] vectWE = {
(double) cornerSE[0] - (double) cornerSW[0], (double) cornerSE[1] - (double) cornerSW[1]
};
double normvectWE = sqrt(sqr(vectWE[0]) + sqr(vectWE[1]));
double[] vectSN = {
(double) cornerNW[0] - (double) cornerSW[0], (double) cornerNW[1] - (double) cornerSW[1]
};
double normvectSN = sqrt(sqr(vectSN[0]) + sqr(vectSN[1]));
double angleSW =
acos((vectWE[0] * vectSN[0] + vectWE[1] * vectSN[1]) / (normvectWE * normvectSN));
if (angleSW == 0.0) {
return null;
}
AffineTransform t = new AffineTransform();
t.translate(cornerNW[0], cornerNW[1]);
t.scale(sign(vectWE[0]), -sign(vectSN[1]));
t.rotate(-atan(vectSN[0] / vectSN[1]));
t.shear(0, 1 / tan(PI - angleSW));
t.scale(normvectWE * cos(angleSW - PI / 2) / (double) width, normvectSN / (double) height);
double[] _cornerSE_tr = new double[2];
double[] _cornerSE = {width, height};
t.transform(_cornerSE, 0, _cornerSE_tr, 0, 1);
if (isDiff(_cornerSE_tr, cornerSE)) {
double[] vectSE_NW_1 = {
(double) cornerNW[0] - (double) cornerSE[0], (double) cornerNW[1] - (double) cornerSE[1]
};
double[] vectSE_NW_2 = {
(double) cornerNW[0] - (double) _cornerSE_tr[0],
(double) cornerNW[1] - (double) _cornerSE_tr[1]
};
double normvect_1 = sqrt(sqr(vectSE_NW_1[0]) + sqr(vectSE_NW_1[1]));
double normvect_2 = sqrt(sqr(vectSE_NW_1[0]) + sqr(vectSE_NW_1[1]));
double cos_angle =
(((vectSE_NW_1[0] * vectSE_NW_2[0] + vectSE_NW_1[1] * vectSE_NW_2[1])
/ (normvect_1 * normvect_2)));
double vect = (vectSE_NW_1[0] * vectSE_NW_2[1] - vectSE_NW_1[1] * vectSE_NW_2[0]);
AffineTransform t2 = new AffineTransform();
if (vect < 0) {
t2.rotate(acos(cos_angle), cornerNW[0], cornerNW[1]);
} else {
t2.rotate(-acos(cos_angle), cornerNW[0], cornerNW[1]);
}
t.preConcatenate(t2);
}
// TODO patch for many cases...
/*double[] _cornerSW_tr = new double[2];
double[] _cornerSW = { 0, img.getHeight(canvas) };
t.transform(_cornerSW, 0, _cornerSW_tr, 0, 1);
if (isDiff(_cornerSW_tr, cornerSW)) {
double[] vectSW_NW_1 = { (double) cornerNW[0] - (double) cornerSW[0], (double) cornerNW[1] - (double) cornerSW[1] };
double[] vectSW_NW_2 = { (double) cornerNW[0] - (double) _cornerSW_tr[0], (double) cornerNW[1] - (double) _cornerSW_tr[1] };
double normvect_1 = sqrt(sqr(vectSW_NW_1[0]) + sqr(vectSW_NW_1[1]));
double normvect_2 = sqrt(sqr(vectSW_NW_1[0]) + sqr(vectSW_NW_1[1]));
double cos_angle = (((vectSW_NW_1[0] * vectSW_NW_2[0] + vectSW_NW_1[1] * vectSW_NW_2[1]) / (normvect_1 * normvect_2)));
double vect = (vectSW_NW_1[0] * vectSW_NW_2[1] - vectSW_NW_1[1] * vectSW_NW_2[0]);
System.out.println(cos_angle + " " + vect + " -> " + toDegrees(acos(cos_angle)));
//System.out.println(" "+vectSE_NW_1[0]+","+vectSE_NW_1[1]+" "+vectSE_NW_2[0]+","+vectSE_NW_2[1]);
AffineTransform t2 = new AffineTransform();
if (vect > 0)
t2.rotate(acos(cos_angle), cornerNW[0], cornerNW[1]);
else
t2.rotate(-acos(cos_angle), cornerNW[0], cornerNW[1]);
t.preConcatenate(t2);
}*/
return t;
}