/**
* compare this to another Drawable3D with picking
*
* @param d the other Drawable3D
* @param checkPickOrder say if the comparison has to look to pick order
* @return 1 if this is in front, 0 if equality, -1 either
*/
public int comparePickingTo(Drawable3D d, boolean checkPickOrder) {
// check if one is transparent and the other not
if ((!this.isTransparent()) && (d.isTransparent())) return -1;
if ((this.isTransparent()) && (!d.isTransparent())) return 1;
// check if the two objects are "mixed"
if ((this.zPickMin - d.zPickMin) * (this.zPickMax - d.zPickMax) < EPSILON_Z) {
if (DEBUG) {
DecimalFormat df = new DecimalFormat("0.000000000");
Application.debug(
"mixed :\n"
+ "zMin= "
+ df.format(this.zPickMin)
+ " | zMax= "
+ df.format(this.zPickMax)
+ " ("
+ this.getGeoElement().getLabel()
+ ")\n"
+ "zMin= "
+ df.format(d.zPickMin)
+ " | zMax= "
+ df.format(d.zPickMax)
+ " ("
+ d.getGeoElement().getLabel()
+ ")\n");
}
if (checkPickOrder) {
if (this.getPickOrder() < d.getPickOrder()) return -1;
if (this.getPickOrder() > d.getPickOrder()) return 1;
}
// if both are points, check if one is on a path and the other not
if (this.getGeoElement().isGeoPoint() && d.getGeoElement().isGeoPoint()) {
if ((((GeoPointND) this.getGeoElement()).hasPath())
&& (!((GeoPointND) d.getGeoElement()).hasPath())) return -1;
if ((!((GeoPointND) this.getGeoElement()).hasPath())
&& (((GeoPointND) d.getGeoElement()).hasPath())) return 1;
}
// smaller object is more likely to be picked
// Note: all objects that are not yet have defined a measure have a default measure = 0
// so that they are not affected by this comparison.
if (Kernel.isGreater(d.getGeoElement().getMeasure(), this.getGeoElement().getMeasure()))
return -1;
if (Kernel.isGreater(this.getGeoElement().getMeasure(), d.getGeoElement().getMeasure()))
return 1;
// check if one is the child of the other
if (this.getGeoElement().isChildOf(d.getGeoElement())) return -1;
if (d.getGeoElement().isChildOf(d.getGeoElement())) return 1;
}
// finally check if one is before the other
if (this.zPickMin < d.zPickMin) return -1;
if (this.zPickMin > d.zPickMin) return 1;
// says that the two objects are equal for the comparator
if (DEBUG) {
DecimalFormat df = new DecimalFormat("0.000000000");
Application.debug(
"equality :\n"
+ "zMin= "
+ df.format(this.zPickMin)
+ " | zMax= "
+ df.format(this.zPickMax)
+ " ("
+ this.getGeoElement().getLabel()
+ ")\n"
+ "zMin= "
+ df.format(d.zPickMin)
+ " | zMax= "
+ df.format(d.zPickMax)
+ " ("
+ d.getGeoElement().getLabel()
+ ")\n");
}
return 0;
}
