/// <summary>
/// Clones of the current BoundingBox.
/// </summary>
public BoundingBox Clone()
{
BoundingBox clonedBox = new BoundingBox(_minimumBounds.Clone(), _maximumBounds.Clone());
return(clonedBox);
}
/// <summary>
/// Projects an array of points onto the model in the Z axis and returns the nearest point to each one.
/// </summary>
/// <param name="pointsToProject">List of the points to project.</param>
/// <param name="projectDownOnly">If True, points above the point of projection are ignored.</param>
public List <Point> ProjectPoints(List <Point> pointsToProject, bool projectDownOnly = false)
{
// Zone model here in case user forgets.
ZoneModel();
// Loop through all the points and for each one find the nearest point in the z axis
List <Point> projectedPoints = new List <Point>();
Vector projectionVector = new Vector(0.0, 0.0, -1.0);
// Work out the size of the zones in the x and y directions
double minX = 0;
double minY = 0;
double xZoneLength = 0;
double yZoneLength = 0;
int numXZones = 0;
int numYZones = 0;
BoundingBox modelBoundingBox = BoundingBox;
var _with2 = modelBoundingBox;
xZoneLength = _with2.XSize / Math.Sqrt(_numberOfZones);
yZoneLength = _with2.YSize / Math.Sqrt(_numberOfZones);
numXZones = (int)(_with2.XSize / xZoneLength) + 1;
numYZones = (int)(_with2.YSize / yZoneLength) + 1;
minX = _with2.MinX;
minY = _with2.MinY;
foreach (Point pointToProject in pointsToProject)
{
// First find which zone (row and column) the point is in
int row = 0;
int col = 0;
row = (int)((pointToProject.X - minX) / xZoneLength);
col = (int)((pointToProject.Y - minY) / yZoneLength);
Point nearestPoint = null;
if ((row >= 0) & (col >= 0) && row < _zones.Count && col < _zones[row].Count)
{
// Get the zone
DMTTriangleZone zone = _zones[row][col];
// Now loop through all triangles in the zone
double nearest = double.MaxValue;
// Loop through all the triangles in the zone
foreach (DMTTriangleZoneEntry triangleEntry in zone.Triangles)
{
//' Get the triangle itself
//Dim triangle As DMTTriangle
//With triangleEntry
// triangle = CType(_blocks(.Block), DMTTriangleBlock).Triangles(.Triangle)
//End With
// Check to see if the projection point intersects this triangle
Point projectedPoint = null;
projectedPoint = ProjectPointToTriangle(pointToProject,
projectionVector,
_blocks[triangleEntry.Block].GetVertex1(triangleEntry.Triangle),
_blocks[triangleEntry.Block].GetVertex2(triangleEntry.Triangle),
_blocks[triangleEntry.Block].GetVertex3(triangleEntry.Triangle));
// If it does then see if it is nearer than any point found so far
if (projectedPoint != null)
{
// Ignore if we are projecting down only and the point is above us
if (projectDownOnly && pointToProject.Z < projectedPoint.Z)
{
continue;
}
double distance = Math.Abs(Convert.ToDouble(pointToProject.Z - projectedPoint.Z));
if (distance < nearest)
{
// It is the nearest so far
nearest = distance;
nearestPoint = projectedPoint.Clone();
}
}
}
}
// Add the nearest point to the list of output points
projectedPoints.Add(nearestPoint);
}
return(projectedPoints);
}
/// <summary>
/// Returns a clone of this Workplane.
/// </summary>
public Workplane Clone()
{
Workplane cloneWorkplane = new Workplane(_origin.Clone(), XAxis.Clone(), YAxis.Clone(), ZAxis.Clone());
return(cloneWorkplane);
}
