public static int acdbGetAdsName(ref ads_name name, ObjectId objId)
{
if (Marshal.SizeOf(IntPtr.Zero) > 4)
{
return(acdbGetAdsName64(ref name, objId));
}
return(acdbGetAdsName32(ref name, objId));
}
void GetTextBoxCorners(DBText dbText, out Point3d pt1, out Point3d pt2, out Point3d pt3, out Point3d pt4)
{
ads_name name = new ads_name();
int result = acdbGetAdsName(
ref name,
dbText.ObjectId);
ResultBuffer rb = new ResultBuffer();
Interop.AttachUnmanagedObject(
rb,
acdbEntGet(ref name), true);
double[] point1 = new double[3];
double[] point2 = new double[3];
// Call imported arx function
acedTextBox(rb.UnmanagedObject, point1, point2);
pt1 = new Point3d(point1);
pt2 = new Point3d(point2);
// Create rotation matrix
Matrix3d rotMat = Matrix3d.Rotation(
dbText.Rotation,
dbText.Normal,
pt1);
// The returned points from acedTextBox need
// to be transformed as follow
pt1 = pt1.TransformBy(rotMat).Add(dbText.Position.GetAsVector());
pt2 = pt2.TransformBy(rotMat).Add(dbText.Position.GetAsVector());
Vector3d rotDir = new Vector3d(
-Math.Sin(dbText.Rotation),
Math.Cos(dbText.Rotation), 0);
Vector3d linDir = rotDir.CrossProduct(dbText.Normal);
double actualWidth =
Math.Abs((pt2.GetAsVector() - pt1.GetAsVector())
.DotProduct(linDir));
pt3 = pt1.Add(linDir * actualWidth);
pt4 = pt2.Subtract(linDir * actualWidth);
}
public static extern System.IntPtr acdbEntGet(
ref ads_name ename);
public static extern int acdbGetAdsName64(
ref ads_name name,
ObjectId objId);
void GetTextBoxCorners(DBText dbText, out Point3d pt1, out Point3d pt2, out Point3d pt3, out Point3d pt4)
{
ads_name name = new ads_name();
int result = acdbGetAdsName(
ref name,
dbText.ObjectId);
ResultBuffer rb = new ResultBuffer();
Interop.AttachUnmanagedObject(
rb,
acdbEntGet(ref name), true);
double[] point1 = new double[3];
double[] point2 = new double[3];
// Call imported arx function
acedTextBox(rb.UnmanagedObject, point1, point2);
pt1 = new Point3d(point1);
pt2 = new Point3d(point2);
var ptX = pt1 + Vector3d.XAxis * 40;
var ptY = pt2 + Vector3d.YAxis * 50;
var lX = new Line(pt1, ptX);
var lY = new Line(pt2, ptY);
lX.Color = Color.FromColor(System.Drawing.Color.Green);
lY.Color = Color.FromColor(System.Drawing.Color.Orange);
Line line = new Line(pt1, pt2);
line.Color = Color.FromColor(System.Drawing.Color.Red);
line.ToSpace();
lX.ToSpace();
lY.ToSpace();
// Create rotation matrix
Matrix3d rotMat = Matrix3d.Rotation(
dbText.Rotation,
dbText.Normal,
pt1);
// The returned points from acedTextBox need
// to be transformed as follow
pt1 = pt1.TransformBy(rotMat).Add(dbText.Position.GetAsVector());
pt2 = pt2.TransformBy(rotMat).Add(dbText.Position.GetAsVector());
Line linetrans = new Line(pt1, pt2);
linetrans.Color = Color.FromColor(System.Drawing.Color.Yellow);
linetrans.ToSpace();
Vector3d rotDir = new Vector3d(
-Math.Sin(dbText.Rotation),
Math.Cos(dbText.Rotation), 0);
//求垂直于rotDir和normal的法向量
Vector3d linDir = rotDir.CrossProduct(dbText.Normal);
double actualWidth =
Math.Abs((pt2.GetAsVector() - pt1.GetAsVector())
.DotProduct(linDir));
pt3 = pt1.Add(linDir * actualWidth);
pt4 = pt2.Subtract(linDir * actualWidth);
Line linetrans2 = new Line(pt3, pt4);
linetrans2.Color = Color.FromColor(System.Drawing.Color.Blue);
linetrans2.ToSpace();
}
public unsafe static extern PromptStatus acedSSNameX(resbuf **rbpp, ref ads_name ss, int i);
public static extern PromptStatus acedSSLength(ref ads_name ss, out int len);
public static extern PromptStatus acedSSFree(ref ads_name ss);
public static extern PromptStatus acedSSGet(string str, IntPtr pt1, IntPtr pt2, IntPtr filter, out ads_name ss);