public static AcGe.Point3dCollection Offset(
AcGe.Point3dCollection collection,
AcGe.Vector3d offset)
{
AcGe.Point3dCollection offsetCollection = new AcGe.Point3dCollection();
foreach (AcGe.Point3d point in collection)
{
offsetCollection.Add(point.Add(offset));
}
return(offsetCollection);
}
public static AcGe.Point3dCollection GetPoints3dFromIn4Polygon(In4Polygon curSR)
{
AcGe.Point3dCollection points = new AcGe.Point3dCollection();
foreach (Point point in curSR.Border)
{
points.Add(new AcGe.Point3d(point.X, point.Y, 0));
}
return(points);
}
public static bool InPoly(_AcGe.Point3d vertexPoint, double xOffs, double yOffs, _AcDb.Entity pElFG)
{
using (_AcDb.Ray ray = new _AcDb.Ray())
{
ray.BasePoint = vertexPoint;
ray.UnitDir = new _AcGe.Vector3d(xOffs, yOffs, 0.0);
_AcGe.Point3dCollection col = new _AcGe.Point3dCollection();
((_AcDb.Entity)ray).IntersectWith(pElFG, _AcDb.Intersect.OnBothOperands, col, IntPtr.Zero, IntPtr.Zero);
if ((col.Count % 2) == 1)
{
return(true);
}
else
{
return(false);
}
}
}
protected override bool WorldDraw(AcGi.WorldDraw draw)
{
AcGi.WorldGeometry geo = draw.Geometry;
if (geo != null)
{
geo.PushModelTransform(UCS);
AcGe.Point3dCollection tempPts = new AcGe.Point3dCollection();
foreach (AcGe.Point3d pt in allVertexes)
{
tempPts.Add(pt);
}
if (lastVertex != null)
{
if (tempPts.Count > 1)
{
AcDb.Line lastLine = new AcDb.Line(allVertexes[allVertexes.Count - 2], allVertexes[allVertexes.Count - 1]);
double offsetForward = ServiceGeodesy.GetProjectionOnLine(lastLine, lastVertex) - lastLine.Length;
double offsetTowards = ServiceGeodesy.GetOffsetFromLine(lastLine, lastVertex);
AcDb.Xline xLine = new AcDb.Xline();
xLine.BasePoint = allVertexes[allVertexes.Count - 1];
xLine.UnitDir = lastLine.Delta;
System.Windows.Forms.Keys mods = System.Windows.Forms.Control.ModifierKeys;
if ((mods & System.Windows.Forms.Keys.Control) > 0)
{
if (isMovingTowards)
{
lastVertex = xLine.GetPointAtDist(offsetForward);
}
else
{
xLine.TransformBy(AcGe.Matrix3d.Rotation(Math.PI / 2 * -1, AcGe.Vector3d.ZAxis, xLine.BasePoint));
lastVertex = xLine.GetPointAtParameter(offsetTowards);
}
}
else
{
if (Math.Abs(offsetForward) > Math.Abs(offsetTowards))
{
isMovingTowards = true;
lastVertex = xLine.GetPointAtDist(offsetForward);
}
else
{
isMovingTowards = false;
xLine.TransformBy(AcGe.Matrix3d.Rotation(Math.PI / 2 * -1, AcGe.Vector3d.ZAxis, xLine.BasePoint));
lastVertex = xLine.GetPointAtParameter(offsetTowards);
}
}
}
tempPts.Add(lastVertex);
}
if (tempPts.Count > 0)
{
geo.Polyline(tempPts, AcGe.Vector3d.ZAxis, IntPtr.Zero);
}
geo.PopModelTransform();
}
return(true);
}
// DBText extensions
///<summary>
/// Gets the bounds of a DBText object.
///</summary>
///<param name="fac">Optional multiplier to increase/reduce buffer.</param>
///<returns>A collection of points defining the text's extents.</returns>
public static _AcGe.Point3dCollection ExtractBounds(
this _AcDb.DBText txt, double fac = 1.0
)
{
var pts = new _AcGe.Point3dCollection();
if (txt.Bounds.HasValue && txt.Visible)
{
// Create a straight version of the text object
// and copy across all the relevant properties
// (stopped copying AlignmentPoint, as it would
// sometimes cause an eNotApplicable error)
// We'll create the text at the WCS origin
// with no rotation, so it's easier to use its
// extents
var txt2 = new _AcDb.DBText();
txt2.Normal = _AcGe.Vector3d.ZAxis;
txt2.Position = _AcGe.Point3d.Origin;
// Other properties are copied from the original
txt2.TextString = txt.TextString;
txt2.TextStyleId = txt.TextStyleId;
txt2.LineWeight = txt.LineWeight;
txt2.Thickness = txt2.Thickness;
txt2.HorizontalMode = txt.HorizontalMode;
txt2.VerticalMode = txt.VerticalMode;
txt2.WidthFactor = txt.WidthFactor;
txt2.Height = txt.Height;
txt2.IsMirroredInX = txt2.IsMirroredInX;
txt2.IsMirroredInY = txt2.IsMirroredInY;
txt2.Oblique = txt.Oblique;
// Get its bounds if it has them defined
// (which it should, as the original did)
if (txt2.Bounds.HasValue)
{
var maxPt = txt2.Bounds.Value.MaxPoint;
// Only worry about this single case, for now
_AcGe.Matrix3d mat = _AcGe.Matrix3d.Identity;
if (txt.Justify == _AcDb.AttachmentPoint.MiddleCenter)
{
mat = _AcGe.Matrix3d.Displacement((_AcGe.Point3d.Origin - maxPt) * 0.5);
}
// Place all four corners of the bounding box
// in an array
double minX, minY, maxX, maxY;
if (txt.Justify == _AcDb.AttachmentPoint.MiddleCenter)
{
minX = -maxPt.X * 0.5 * fac;
maxX = maxPt.X * 0.5 * fac;
minY = -maxPt.Y * 0.5 * fac;
maxY = maxPt.Y * 0.5 * fac;
}
else
{
minX = 0;
minY = 0;
maxX = maxPt.X * fac;
maxY = maxPt.Y * fac;
}
var bounds =
new _AcGe.Point2d[] {
new _AcGe.Point2d(minX, minY),
new _AcGe.Point2d(minX, maxY),
new _AcGe.Point2d(maxX, maxY),
new _AcGe.Point2d(maxX, minY)
};
// We're going to get each point's WCS coordinates
// using the plane the text is on
var pl = new _AcGe.Plane(txt.Position, txt.Normal);
// Rotate each point and add its WCS location to the
// collection
foreach (_AcGe.Point2d pt in bounds)
{
pts.Add(
pl.EvaluatePoint(
pt.RotateBy(txt.Rotation, _AcGe.Point2d.Origin)
)
);
}
}
}
return(pts);
}
