public override void FindSnapPoint(SnapPointFinder spf)
{
if (spf.SnapToFaceSurface)
{
Plane pln = new Plane(location, directionWidth, directionHeight);
GeoPoint ip;
if (pln.Intersect(spf.SourceBeam.Location, spf.SourceBeam.Direction, out ip))
{
GeoPoint2D ip2d = Geometry.GetPosition(pln.Project(ip), GeoPoint2D.Origin, pln.Project(directionWidth), pln.Project(directionHeight));
double linepos = Geometry.LinePar(spf.SourceBeam.Location, spf.SourceBeam.Direction, ip);
if (linepos < spf.faceDist)
{
spf.faceDist = linepos;
spf.Check(ip, this, SnapPointFinder.DidSnapModes.DidSnapToFaceSurface);
}
}
}
if (spf.SnapToObjectCenter)
{
GeoPoint Center = location + 0.5 * directionWidth + 0.5 * directionHeight;
spf.Check(Center, this, SnapPointFinder.DidSnapModes.DidSnapToObjectCenter);
}
if (spf.SnapToObjectSnapPoint)
{
spf.Check(location, this, SnapPointFinder.DidSnapModes.DidSnapToObjectSnapPoint);
spf.Check(location + directionWidth, this, SnapPointFinder.DidSnapModes.DidSnapToObjectSnapPoint);
spf.Check(location + directionHeight, this, SnapPointFinder.DidSnapModes.DidSnapToObjectSnapPoint);
spf.Check(location + directionWidth + directionHeight, this, SnapPointFinder.DidSnapModes.DidSnapToObjectSnapPoint);
}
}
/// <summary>
/// Overrides <see cref="CADability.GeoObject.IGeoObjectImpl.FindSnapPoint (SnapPointFinder)"/>
/// </summary>
/// <param name="spf"></param>
public override void FindSnapPoint(SnapPointFinder spf)
{
if (!spf.Accept(this))
{
return;
}
if (spf.SnapToObjectCenter)
{
GeoPoint Center = new GeoPoint(StartPoint, EndPoint);
spf.Check(Center, this, SnapPointFinder.DidSnapModes.DidSnapToObjectCenter);
}
if (spf.SnapToObjectSnapPoint)
{
spf.Check(StartPoint, this, SnapPointFinder.DidSnapModes.DidSnapToObjectSnapPoint);
spf.Check(EndPoint, this, SnapPointFinder.DidSnapModes.DidSnapToObjectSnapPoint);
}
if (spf.SnapToDropPoint && spf.BasePointValid)
{
GeoPoint toTest = Geometry.DropPL(spf.BasePoint, startPoint, endPoint);
spf.Check(toTest, this, SnapPointFinder.DidSnapModes.DidSnapToDropPoint);
}
if (spf.SnapToObjectPoint)
{
double par = PositionOf(spf.SourcePoint3D, spf.Projection.ProjectionPlane);
// TODO: hier ist eigentlich gefragt der nächste punkt auf der Linie im Sinne des Projektionsstrahls
if (par >= 0.0 && par <= 1.0)
{
spf.Check(PointAt(par), this, SnapPointFinder.DidSnapModes.DidSnapToObjectPoint);
}
}
}
/// <summary>
/// Overrides <see cref="CADability.GeoObject.IGeoObjectImpl.FindSnapPoint (SnapPointFinder)"/>
/// </summary>
/// <param name="spf"></param>
public override void FindSnapPoint(SnapPointFinder spf)
{
lock (this)
{
foreach (IGeoObject go in containedObjects)
{
go.FindSnapPoint(spf);
}
}
}
/// <summary>
/// Overrides <see cref="CADability.GeoObject.IGeoObjectImpl.FindSnapPoint (SnapPointFinder)"/>
/// </summary>
/// <param name="spf"></param>
public override void FindSnapPoint(SnapPointFinder spf)
{
if (!spf.Accept(this))
{
return;
}
if (spf.SnapToObjectSnapPoint)
{
spf.Check(location, this, SnapPointFinder.DidSnapModes.DidSnapToObjectSnapPoint);
}
}
/// <summary>
/// Overrides <see cref="CADability.GeoObject.IGeoObjectImpl.FindSnapPoint (SnapPointFinder)"/>
/// </summary>
/// <param name="spf"></param>
public override void FindSnapPoint(SnapPointFinder spf)
{ // besser wäre es den SnapPointFinder mit einer ModOp auszustatten, die überschrieben werden kann
Flattened.FindSnapPoint(spf);
}