//posistion unit:m
BCOM.LineElement[] CreateArrowElement(Point3d position, IPileProperty pileprop)
{
//double uorpermaster = app.ActiveModelReference.UORsPerMasterUnit;
BCOM.Point3d centroidp = position.Point3dToBCOMPoint3d(1e4 / uorpermaster);
centroidp.Z = 0; // 平面
BG.DVector3d linevector = new BG.DVector3d(pileprop.PileTopPoint.Point3dToDPoint3d(), pileprop.PileBottomPoint.Point3dToDPoint3d());
double xyrotationRad = linevector.AngleXY.Radians;
double arrowbarlength = 5 * pileprop.PileDiameter * 1e4 / uorpermaster;
BCOM.Point3d startp = app.Point3dZero(), endp = app.Point3dFromXY(arrowbarlength, 0);
BCOM.LineElement bar = app.CreateLineElement2(null, ref startp, ref endp);
BCOM.Point3d wingendp = app.Point3dFromXY(-arrowbarlength / 3, 0);
var wing1 = app.CreateLineElement2(null, ref startp, ref wingendp);
var wing2 = wing1.Clone().AsLineElement();
wing1.RotateAboutZ(ref startp, app.Radians(25));
wing2.RotateAboutZ(ref startp, app.Radians(-25));
wing1.Move(ref endp); wing2.Move(ref endp);
var lineArray = new BCOM.LineElement[] { bar, wing1, wing2 };
foreach (var line in lineArray)
{
line.RotateAboutZ(ref startp, xyrotationRad);
line.Move(ref centroidp);
line.Color = 2;
//line.LineWeight = 3;
}
return(lineArray);
}
public static void LineAndLineString(string unparsed)
{
Bentley.Interop.MicroStationDGN.Application app = Bentley.MicroStation.InteropServices.Utilities.ComApp;
Point3d startPnt = app.Point3dZero();
Point3d endPnt = startPnt;
startPnt.X = 10;
LineElement oLine = app.CreateLineElement2(null, ref startPnt, ref endPnt);
oLine.Color = 0;
oLine.LineWeight = 2;
app.ActiveModelReference.AddElement(oLine);
Point3d[] pntArray = new Point3d[5];
pntArray[0] = app.Point3dZero();
pntArray[1] = app.Point3dFromXY(1, 2);
pntArray[2] = app.Point3dFromXY(3, -2);
pntArray[3] = app.Point3dFromXY(5, 2);
pntArray[4] = app.Point3dFromXY(6, 0);
oLine = app.CreateLineElement1(null, ref pntArray);
oLine.Color = 1;
oLine.LineWeight = 2;
app.ActiveModelReference.AddElement(oLine);
}
public static BCOM.Element createPointElement(this BCOM.Application app)
{
var zero = app.Point3dZero();
return(app.CreateLineElement2(null, zero, zero));
}
public Element create_line(double length)
{
Element line = app.CreateLineElement2(null, app.Point3dFromXYZ(0, 0, 0), app.Point3dFromXYZ(0, -length, 0));
return(line);
}