private void ShowNearbySketches(SketchSample[] nearby, Point3D center3D, RayHitTestParameters cameraRay, Point center2D)
{
// Get a plane that is perpendicular to the look ray
ITriangle plane = Math3D.GetPlane(center3D, cameraRay.Direction);
// Project the points onto that plane
var nearbyOnPlane = nearby.
Select(o => new { Sketch = o, PlanePoint = Math3D.GetClosestPoint_Plane_Point(plane, o.Position) }).
ToArray();
RotateTransform3D rotate = new RotateTransform3D(new QuaternionRotation3D(Math3D.GetRotation(new DoubleVector(cameraRay.Direction, _camera.UpDirection), new DoubleVector(new Vector3D(0, 0, -1), new Vector3D(0, 1, 0)))));
// Lay these images down along the directions of the projected points
// nearby is sorted by distance from the center image
#region Attempt1
double halfLarge = SKETCHSIZE_LARGE / 2;
double halfSmall = SKETCHSIZE_SMALL / 2;
double stepDist = SKETCHSIZE_SMALL * .05;
int startIncrement = Convert.ToInt32(Math.Floor((halfSmall + halfLarge) / stepDist));
List <Rect> existing = new List <Rect>();
existing.Add(new Rect(center2D.X - halfLarge, center2D.Y - halfLarge, SKETCHSIZE_LARGE, SKETCHSIZE_LARGE));
foreach (var nextSketch in nearbyOnPlane)
{
Vector direction = rotate.Transform(nextSketch.PlanePoint - center3D).ToVector2D();
Vector dirUnit = direction.ToUnit();
if (Math2D.IsInvalid(dirUnit))
{
dirUnit = Math3D.GetRandomVector_Circular_Shell(1).ToVector2D();
}
dirUnit = new Vector(dirUnit.X, -dirUnit.Y);
Point point = new Point();
Rect rect = new Rect();
for (int cntr = startIncrement; cntr < 1000; cntr++)
{
point = center2D + (dirUnit * (stepDist * cntr));
rect = new Rect(point.X - halfSmall, point.Y - halfSmall, SKETCHSIZE_SMALL, SKETCHSIZE_SMALL);
if (!existing.Any(o => o.IntersectsWith(rect)))
{
break;
}
}
existing.Add(rect);
//ShowImage(nextSketch.Sketch, center2D + (dirUnit * 100), false);
ShowImage(nextSketch.Sketch, point, false);
}
#endregion
}
private void ShowNearbySketches(Dot[] nearby, Point3D center3D, RayHitTestParameters cameraRay, Point center2D)
{
// Get a plane that is perpendicular to the look ray
ITriangle plane = Math3D.GetPlane(center3D, cameraRay.Direction);
// Project the points onto that plane
var nearbyOnPlane = nearby.
Select(o => new { Sketch = o, PlanePoint = Math3D.GetClosestPoint_Plane_Point(plane, o.Position) }).
ToArray();
RotateTransform3D rotate = new RotateTransform3D(new QuaternionRotation3D(Math3D.GetRotation(new DoubleVector(cameraRay.Direction, _camera.UpDirection), new DoubleVector(new Vector3D(0, 0, -1), new Vector3D(0, 1, 0)))));
// Lay these images down along the directions of the projected points
// nearby is sorted by distance from the center image
double halfLarge = SKETCHSIZE_LARGE / 2;
double halfSmall = SKETCHSIZE_SMALL / 2;
double stepDist = SKETCHSIZE_SMALL * .05;
// Don't start counter at a distance of zero, that's just wasted steps. Figure out what cntr to use that is the distance of the two images touching
int startIncrement = Convert.ToInt32(Math.Floor((halfSmall + halfLarge) / stepDist));
// Remember the locations of each image rect
List <Rect> existing = new List <Rect>();
existing.Add(new Rect(center2D.X - halfLarge, center2D.Y - halfLarge, SKETCHSIZE_LARGE, SKETCHSIZE_LARGE));
foreach (var nextSketch in nearbyOnPlane)
{
// Get the 2D direction this sketch is from the main
Vector direction = rotate.Transform(nextSketch.PlanePoint - center3D).ToVector2D();
Vector dirUnit = direction.ToUnit(true);
if (Math2D.IsInvalid(dirUnit))
{
dirUnit = Math3D.GetRandomVector_Circular_Shell(1).ToVector2D(); // sitting on top of each other, just push it in a random direction
}
dirUnit = new Vector(dirUnit.X, -dirUnit.Y);
Point point = new Point();
Rect rect = new Rect();
// Keep walking along that direction until the rectangle doesn't intersect any existing sketches
for (int cntr = startIncrement; cntr < 1000; cntr++)
{
point = center2D + (dirUnit * (stepDist * cntr));
rect = new Rect(point.X - halfSmall, point.Y - halfSmall, SKETCHSIZE_SMALL, SKETCHSIZE_SMALL);
if (!existing.Any(o => o.IntersectsWith(rect)))
{
break;
}
}
existing.Add(rect);
ShowImage(nextSketch.Sketch, point, false);
}
}
/// <summary>
/// This overload returns a point on the shape that is closest to the point passed in
/// </summary>
public Point3D?CastRay(Point3D point)
{
Point3D?retVal = null;
switch (_shape)
{
case ShapeType.Line:
#region Line
retVal = Math3D.GetClosestPoint_Line_Point(_point, _direction, point);
#endregion
break;
case ShapeType.Lines:
#region Lines
retVal = CastRay_LinesCircles(_lines, null, point);
#endregion
break;
case ShapeType.Plane:
#region Plane
retVal = Math3D.GetClosestPoint_Plane_Point(_plane, point);
#endregion
break;
case ShapeType.Circle:
#region Circle
retVal = Math3D.GetClosestPoint_Circle_Point(_plane, _point, _radius, point);
#endregion
break;
case ShapeType.Circles:
#region Circles
retVal = CastRay_LinesCircles(null, _circles, point);
#endregion
break;
case ShapeType.LinesCircles:
#region LinesCircles
retVal = CastRay_LinesCircles(_lines, _circles, point);
#endregion
break;
case ShapeType.Cylinder:
#region Cylinder
retVal = Math3D.GetClosestPoint_Cylinder_Point(_point, _direction, _radius, point);
#endregion
break;
case ShapeType.Sphere:
#region Sphere
retVal = Math3D.GetClosestPoint_Sphere_Point(_point, _radius, point);
#endregion
break;
case ShapeType.Mesh:
throw new ApplicationException("finish this");
case ShapeType.None:
retVal = null;
break;
default:
throw new ApplicationException("Unknown ShapeType: " + _shape.ToString());
}
return(retVal);
}
private void ShowNearbyPreviews(Dot[] nearby, Dot dot, RayHitTestParameters cameraRay, Point center2D)
{
#region previews, sizes
int dotMinSize = Math.Min(dot.PreviewSize.X, dot.PreviewSize.Y);
int minSize = dotMinSize;
foreach (Dot nearDot in nearby)
{
EnsurePreviewGenerated(nearDot, _getPreview);
minSize = Math1D.Min(minSize, nearDot.PreviewSize.X, nearDot.PreviewSize.Y);
}
double halfMin = minSize / 2d;
double stepDist = halfMin * .05;
#endregion
#region project plane
// Get a plane that is perpendicular to the look ray
ITriangle plane = Math3D.GetPlane(dot.Position, cameraRay.Direction);
// Project the points onto that plane
var nearbyOnPlane = nearby.
Select(o => new { Dot = o, PlanePoint = Math3D.GetClosestPoint_Plane_Point(plane, o.Position) }).
ToArray();
RotateTransform3D rotate = new RotateTransform3D(new QuaternionRotation3D(Math3D.GetRotation(new DoubleVector(cameraRay.Direction, _camera.UpDirection), new DoubleVector(new Vector3D(0, 0, -1), new Vector3D(0, 1, 0)))));
#endregion
// Lay these previews down along the directions of the projected points
// nearby is sorted by distance from the center image
// Don't start counter at a distance of zero, that's just wasted steps. Figure out what cntr to use that is the distance of the two images touching
int startIncrement = Convert.ToInt32(Math.Floor(((dotMinSize / 2d) + halfMin) / stepDist));
// Remember the locations of each image rect
List <Rect> existing = new List <Rect>();
existing.Add(new Rect(center2D.X - (dot.PreviewSize.X / 2d), center2D.Y - (dot.PreviewSize.Y / 2d), dot.PreviewSize.X, dot.PreviewSize.Y));
foreach (var nextDot in nearbyOnPlane)
{
#region project dot plane
// Get the 2D direction this sketch is from the main
Vector direction = rotate.Transform(nextDot.PlanePoint - dot.Position).ToVector2D();
Vector dirUnit = direction.ToUnit(true);
if (Math2D.IsInvalid(dirUnit))
{
dirUnit = Math3D.GetRandomVector_Circular_Shell(1).ToVector2D(); // sitting on top of each other, just push it in a random direction
}
dirUnit = new Vector(dirUnit.X, -dirUnit.Y);
#endregion
#region find clear space
Point point = new Point();
Rect rect = new Rect();
double halfX = nextDot.Dot.PreviewSize.X / 2d;
double halfY = nextDot.Dot.PreviewSize.Y / 2d;
// Keep walking along that direction until the rectangle doesn't intersect any existing sketches
for (int cntr = startIncrement; cntr < 1000; cntr++)
{
point = center2D + (dirUnit * (stepDist * cntr));
rect = new Rect(point.X - halfX, point.Y - halfY, nextDot.Dot.PreviewSize.X, nextDot.Dot.PreviewSize.Y);
if (!existing.Any(o => o.IntersectsWith(rect)))
{
break;
}
}
existing.Add(rect);
#endregion
ShowPreview(nextDot.Dot, point);
}
}
