public void SetPower(int power)
{
Power = power;
var size = Resolution + 1;
Points = new DisplacementPoint[size, size];
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
//TODO: approximate new point values instead of zeroing
Points[i, j] = new DisplacementPoint(this, i, j);
}
}
UpdateBoundingBox();
}
public void SetPower(int power)
{
Power = power;
var size = Resolution + 1;
Points = new DisplacementPoint[size, size];
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
//TODO: approximate new point values instead of zeroing
Points[i, j] = new DisplacementPoint(this, i, j);
}
}
UpdateBoundingBox();
}
private Coordinate GetNormal(Viewport3D vp, DisplacementPoint point, GeometryControl.Axis axis)
{
switch (axis)
{
case GeometryControl.Axis.XAxis:
return Coordinate.UnitX;
case GeometryControl.Axis.YAxis:
return Coordinate.UnitY;
case GeometryControl.Axis.ZAxis:
return Coordinate.UnitZ;
case GeometryControl.Axis.FaceNormal:
return point.Parent.Plane.Normal;
case GeometryControl.Axis.PointNormal:
return point.Displacement.Normal;
case GeometryControl.Axis.TowardsViewport:
var v = vp.Camera.LookAt;
return new Coordinate((decimal) v.X, (decimal) v.Y, (decimal) v.Z).Normalise();
default:
throw new ArgumentOutOfRangeException("axis");
}
}
private void ApplyEffect(decimal distance, Coordinate normal,
DisplacementPoint point, GeometryControl.Effect effect, GeometryControl.Brush brush,
decimal spatialRadius, int pointSize, Easing softEdgeFunc)
{
var disps = new List<Displacement>();
//CollectJoinedDisplacements(disps, point.Parent, Selection.GetSelectedFaces().OfType<Displacement>().ToList());
disps.AddRange(Document.Selection.GetSelectedFaces().OfType<Displacement>());
var list = new List<Tuple<DisplacementPoint, decimal>>();
if (brush == GeometryControl.Brush.Point)
{
// If we're in point brush mode, select the points by location in the displacement grid
list.Add(Tuple.Create(_currentPoint, 1m));
var ratio = 1m / pointSize;
var cx = _currentPoint.XIndex;
var cy = _currentPoint.YIndex;
for (var i = 1; i < pointSize; i++)
{
var edge = 1 - softEdgeFunc.Evaluate(ratio * i);// softEdge ? 1 - (ratio * i) : 1;
var points = new List<DisplacementPoint>();
for (var j = -i; j <= i; j++)
{
// Get the points in a box around the point, distance i
// points.Add(disp.GetPoint(cx - i, cy + j));
// points.Add(disp.GetPoint(cx + i, cy + j));
// if (j == -i || j == i) continue;
// points.Add(disp.GetPoint(cx + j, cy - i));
// points.Add(disp.GetPoint(cx + j, cy + i));
}
list.AddRange(points.Where(x => x != null).Select(x => Tuple.Create(x, edge)));
}
}
else if (brush == GeometryControl.Brush.Spatial)
{
// For spatial brush mode, select the points by distance from the current point
var points = disps.SelectMany(x => x.GetPoints())
.Select(x => new
{
Point = x,
Distance = (x.Location - _currentPoint.Location).VectorMagnitude()
})
.Where(x => x.Distance <= spatialRadius);
// list.AddRange(points.Select(x => Tuple.Create(x.Point, softEdge ? (spatialRadius - x.Distance) / spatialRadius : 1)));
list.AddRange(points.Select(x => Tuple.Create(x.Point, 1 - softEdgeFunc.Evaluate(1 - (spatialRadius - x.Distance) / spatialRadius))));
}
if (!list.Any()) return;
switch (effect)
{
case GeometryControl.Effect.RelativeDistance:
list.ForEach(
x => x.Item1.CurrentPosition.Location +=
normal * (distance * x.Item2));
break;
case GeometryControl.Effect.AbsoluteDistance:
list.ForEach(
x => x.Item1.CurrentPosition.Location =
x.Item1.InitialPosition + (x.Item1.Parent.Plane.Normal * distance));
break;
case GeometryControl.Effect.SmoothPoints:
var avg = list.Select(x => x.Item1.Location).Aggregate(Coordinate.Zero, (x, y) => x + y) / list.Count;
foreach (var pt in list)
{
var dist = (pt.Item1.Location - avg).Dot(normal);
var mult = -Math.Sign(dist) * Math.Min(Math.Abs(dist), Math.Abs(distance));
pt.Item1.CurrentPosition.Location += mult * pt.Item2 * normal;
}
break;
default:
throw new ArgumentOutOfRangeException("effect");
}
}
public override void UpdateFrame(ViewportBase viewport, FrameInfo frame)
{
var vp = viewport as Viewport3D;
if (vp == null) return;
if (_moveCount > 0)
{
PaintCurrentPoint(vp, _moveCount);
_moveCount = 0;
}
// Check the current intersecting point
var ray = vp.CastRayFromScreen(_mousePos.X, _mousePos.Y);
var selectedFaces = Document.Selection.GetSelectedFaces().OfType<Displacement>();
var closestPoints = selectedFaces.Select(x => x.GetClosestDisplacementPoint(ray));
_currentPoint = closestPoints
.OrderBy(x => (x.Location - ray.ClosestPoint(x.Location)).VectorMagnitude())
.FirstOrDefault();
if (_needsRedraw)
{
// update display lists?
_needsRedraw = false;
}
}
public override void ToolDeselected(bool preventHistory)
{
_currentPoint = null;
}
public override void ToolDeselected()
{
_currentPoint = null;
}
