/** update values for ticks and labels */
public void updateDecorations() {
// update decorations
GeoAxis3D axis = (GeoAxis3D) getGeoElement();
// gets the direction vector of the axis as it is drawn on screen
/*
Coords v = axis.getCoordSys().getVx().copyVector();
getView3D().toScreenCoords3D(v);
*/
Coords v = getView3D().getToScreenMatrix().mul(axis.getCoordSys().getVx());
v.set(3, 0); // set z-coord to 0
// double vScale = v.norm(); //axis scale, used for ticks distance
double vScale = getView3D().getScale(); // TODO use different scales for x/y/z
// Application.debug("vScale="+vScale);
// calc orthogonal offsets
int vx = (int) (v.get(1) * 1.5 * axis.getTickSize() / vScale);
int vy = (int) (v.get(2) * 1.5 * axis.getTickSize() / vScale);
int xOffset = -vy;
int yOffset = vx;
if (yOffset > 0) {
xOffset = -xOffset;
yOffset = -yOffset;
}
// interval between two ticks
// Application.debug("vscale : "+vScale);
double maxPix = 100; // only one tick is allowed per maxPix pixels
double units = maxPix / vScale;
NumberFormat numberFormat = NumberFormat.getInstance(Locale.ENGLISH);
// TODO see EuclidianView::setAxesIntervals and Kernel::axisNumberDistance
double distance = getView3D().getKernel().axisNumberDistance(units, numberFormat);
axis.updateDecorations(
distance, numberFormat, xOffset, yOffset, -vx - 2 * xOffset, -vy - 2 * yOffset);
}
protected void updateLabel() {
// draw numbers
GeoAxis3D axis = (GeoAxis3D) getGeoElement();
NumberFormat numberFormat = axis.getNumberFormat();
double distance = axis.getNumbersDistance();
// Application.debug("drawMinMax="+getDrawMin()+","+getDrawMax());
double[] minmax = getDrawMinMax();
int iMin = (int) (minmax[0] / distance);
int iMax = (int) (minmax[1] / distance);
int nb = iMax - iMin + 1;
// Application.debug("iMinMax="+iMin+","+iMax);
if (nb < 1) {
Application.debug("nb=" + nb);
// labels = null;
return;
}
// sets all already existing labels not visible
for (DrawLabel3D label : labels.values()) label.setIsVisible(false);
for (int i = iMin; i <= iMax; i++) {
double val = i * distance;
Coords origin = ((GeoCoordSys1D) getGeoElement()).getPoint(val);
// draw numbers
String strNum = getView3D().getKernel().formatPiE(val, numberFormat);
// check if the label already exists
DrawLabel3D label = labels.get(strNum);
if (label != null) {
// sets the label visible
label.setIsVisible(true);
label.update(
strNum,
10,
getGeoElement().getObjectColor(),
origin.copyVector(),
axis.getNumbersXOffset(),
axis.getNumbersYOffset());
// TODO optimize this
} else {
// creates new label
label = new DrawLabel3D(getView3D());
label.setAnchor(true);
label.update(
strNum,
10,
getGeoElement().getObjectColor(),
origin.copyVector(),
axis.getNumbersXOffset(),
axis.getNumbersYOffset());
labels.put(strNum, label);
}
}
// update end of axis label
label.update(
((GeoAxis3D) getGeoElement()).getAxisLabel(),
10,
getGeoElement().getObjectColor(),
((GeoCoordSys1D) getGeoElement()).getPoint(minmax[1]),
axis.labelOffsetX - 4,
axis.labelOffsetY - 6);
}