public static void PasteFiguresAsBin(PlotterController controller)
{
if (!Clipboard.ContainsData(CadClipBoard.TypeNameBin))
{
return;
}
byte[] bin = (byte[])Clipboard.GetData(CadClipBoard.TypeNameBin);
List <CadFigure> figList = BinToFigList(bin);
// Pase figures in fig list
Vector3d pp = controller.LastDownPoint;
MinMax3D mm3d = CadUtil.GetFigureMinMaxIncludeChild(figList);
Vector3d d = pp - mm3d.GetMinAsVector();
CadOpeList opeRoot = new CadOpeList();
foreach (CadFigure fig in figList)
{
PasteFigure(controller, fig, d);
controller.CurrentLayer.AddFigure(fig); // 子ObjectはLayerに追加しない
CadOpe ope = new CadOpeAddFigure(controller.CurrentLayer.ID, fig.ID);
opeRoot.OpeList.Add(ope);
}
controller.HistoryMan.foward(opeRoot);
}
// With thanks to http://www.turiyaware.com/a-solution-to-unitys-camera-worldtoscreenpoint-causing-ui-elements-to-display-when-object-is-behind-the-camera/
public static MinMax3D GetScreenRectFromBounds(MeshFilter renderer, Camera mainCamera)
{
MinMax3D minMax = new MinMax3D (float.MaxValue, float.MinValue);
Vector3[] screenBoundsExtents = new Vector3[8];
var localBounds = renderer.sharedMesh.bounds;
bool anyPointIsInFrontOfCamera = false;
for (int i = 0; i < 8; i++) {
Vector3 localSpaceCorner = localBounds.center + Vector3.Scale (localBounds.extents, cubeCornerOffsets[i]);
Vector3 worldSpaceCorner = renderer.transform.TransformPoint (localSpaceCorner);
Vector3 viewportSpaceCorner = mainCamera.WorldToViewportPoint (worldSpaceCorner);
if (viewportSpaceCorner.z > 0) {
anyPointIsInFrontOfCamera = true;
} else {
// If point is behind camera, it gets flipped to the opposite side
// So clamp to opposite edge to correct for this
viewportSpaceCorner.x = (viewportSpaceCorner.x <= 0.5f) ? 1 : 0;
viewportSpaceCorner.y = (viewportSpaceCorner.y <= 0.5f) ? 1 : 0;
}
// Update bounds with new corner point
minMax.AddPoint (viewportSpaceCorner);
}
// All points are behind camera so just return empty bounds
if (!anyPointIsInFrontOfCamera) {
return new MinMax3D ();
}
return minMax;
}
/// Update the bounding box of the path
void UpdateBounds()
{
if (boundsUpToDate)
{
return;
}
// Loop through all segments and keep track of the minmax points of all their bounding boxes
MinMax3D minMax = new MinMax3D();
for (int i = 0; i < NumSegments; i++)
{
Vector3[] p = GetPointsInSegment(i);
minMax.AddValue(p[0]);
minMax.AddValue(p[3]);
List <float> extremePointTimes = PathUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(MathUtility.CubicBezier(p, t));
}
}
boundsUpToDate = true;
bounds = new Bounds((minMax.Min + minMax.Max) * .5f, minMax.Max - minMax.Min);
}
/// Update the bounding box of the path
public Bounds CalculateBoundsWithTransform(Transform transform)
{
// Loop through all segments and keep track of the minmax points of all their bounding boxes
MinMax3D minMax = new MinMax3D();
for (int i = 0; i < NumSegments; i++)
{
Vector3[] p = GetPointsInSegment(i);
for (int j = 0; j < p.Length; j++)
{
p[j] = MathUtility.TransformPoint(p[j], transform, space);
}
minMax.AddValue(p[0]);
minMax.AddValue(p[3]);
List <float> extremePointTimes = PathUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(MathUtility.CubicBezier(p, t));
}
}
return(new Bounds((minMax.Min + minMax.Max) * .5f, minMax.Max - minMax.Min));
}
public static Bounds CalculateSegmentBounds (Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3) {
MinMax3D minMax = new MinMax3D ();
minMax.AddValue (p0);
minMax.AddValue (p3);
List<float> extremePointTimes = ExtremePointTimes (p0,p1,p2,p3);
foreach (float t in extremePointTimes) {
minMax.AddValue (CubicBezierUtility.EvaluateCurve (p0, p1, p2, p3, t));
}
return new Bounds ((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min);
}
public static Bounds CalculateBounds(Vector3[] points)
{
MinMax3D minMax = new MinMax3D();
minMax.AddValue(points[0]);
minMax.AddValue(points[3]);
List <float> extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(CubicBezierUtility.EvaluateCurve(points, t));
}
return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
}
public static Bounds CalculateBounds(Vector3[] points)
{
Debug.Assert(points.Length == 4, "Incorrect number of points supplied to cubic bezier function (expected 4)");
MinMax3D minMax = new MinMax3D();
if (points.Length >= 4)
{
minMax.AddValue(points[0]);
minMax.AddValue(points[3]);
List <float> extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(CubicBezierUtility.EvaluateCurve(points, t));
}
}
return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
}
internal static MinMax3D GetScreenRectFromBounds(MeshFilter renderer, Camera main_camera)
{
// With thanks to http://www.turiyaware.com/a-solution-to-unitys-camera-worldtoscreenpoint-causing-ui-elements-to-display-when-object-is-behind-the-camera/
var min_max = new MinMax3D(min: float.MaxValue, max: float.MinValue);
var screen_bounds_extents = new Vector3[8];
var local_bounds = renderer.sharedMesh.bounds;
var any_point_is_in_front_of_camera = false;
for (var i = 0; i < 8; i++)
{
var local_space_corner = local_bounds.center
+ Vector3.Scale(a: local_bounds.extents, b: _cube_corner_offsets[i]);
var world_space_corner = renderer.transform.TransformPoint(position: local_space_corner);
var viewport_space_corner = main_camera.WorldToViewportPoint(position: world_space_corner);
if (viewport_space_corner.z > 0)
{
any_point_is_in_front_of_camera = true;
}
else
{
// If point is behind camera, it gets flipped to the opposite side
// So clamp to opposite edge to correct for this
viewport_space_corner.x = (viewport_space_corner.x <= 0.5f) ? 1 : 0;
viewport_space_corner.y = (viewport_space_corner.y <= 0.5f) ? 1 : 0;
}
// Update bounds with new corner point
min_max.AddPoint(point: viewport_space_corner);
}
// All points are behind camera so just return empty bounds
if (!any_point_is_in_front_of_camera)
{
return(new MinMax3D());
}
return(min_max);
}
public static Bounds CalculateBounds(Vector3[] points)
{
Debug.Assert(
points.Length == 4,
"Incorrect number of points supplied to cubic bezier function. Expected 4, but received " + points.Length);
var minMax = new MinMax3D();
if (points.Length >= 4)
{
minMax.AddValue(points[0]);
minMax.AddValue(points[3]);
var extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
foreach (var t in extremePointTimes)
{
minMax.AddValue(EvaluateCurve(points, t));
}
}
return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
}
public static bool BoundsOverlap(MeshFilter nearObject, MeshFilter farObject, Camera camera)
{
MinMax3D near = GetScreenRectFromBounds(nearObject, camera);
MinMax3D far = GetScreenRectFromBounds(farObject, camera);
// ensure far object is indeed further away than near object
if (far.zMax > near.zMin)
{
// Doesn't overlap on x axis
if (far.xMax < near.xMin || far.xMin > near.xMax)
{
return(false);
}
// Doesn't overlap on y axis
if (far.yMax < near.yMin || far.yMin > near.yMax)
{
return(false);
}
// Overlaps
return(true);
}
return(false);
}
