Annotation leader line overlaps text after the DXF file is loaded, updated and saved.

[kyosukeSakurai]

Annotation leader line overlaps text after the DXF file is loaded, updated and saved.

It seems that the update position of the text attachment point is incorrect.

Sample dxf: sample_L2.zip

Sample code:

var dxfDoc = DxfDocument.Load( filename );
foreach( var ldr in dxfDoc.Entities.Leaders)
{
     ldr.update(false)
}
dxfDoc.Save( filename );

I think the following processing is needed to be fixed. Line 599 and 766 on Leader.cs

// Since Hook is decided from mTxt.Position, Annotation lines are created across mText when the attachment point is above and in the center instead of below.
 // Fixed to determine Hook from the bottom of the annotation text. 
         switch (mText.AttachmentPoint)
         {
                case MTextAttachmentPoint.TopRight:
                case MTextAttachmentPoint.TopLeft:
                       position.Y = position.Y - mText.Height;
                       break;
                case MTextAttachmentPoint.MiddleRight:
                       mText.AttachmentPoint = MTextAttachmentPoint.MiddleLeft;
                       mText.AttachmentPoint = MTextAttachmentPoint.MiddleRight;
                        position.Y = position.Y - (mText.Height*0.5);
                        break;
                 case MTextAttachmentPoint.BottomRight:
                 case MTextAttachmentPoint.BottomLeft:
                         break;
          }

// Since Hook is decided from mTxt.Position, Annotation lines are created across mText when the attachment point is above and in the center instead of below.
// Fixed to determine Hook from the bottom of the annotation text.
         switch (mText.AttachmentPoint)
            {
                case MTextAttachmentPoint.TopRight:
                case MTextAttachmentPoint.TopLeft:
                       position.Y = position.Y + mText.Height;
                       break;
                case MTextAttachmentPoint.MiddleRight:
                       mText.AttachmentPoint = MTextAttachmentPoint.MiddleLeft;
                       mText.AttachmentPoint = MTextAttachmentPoint.MiddleRight;
                       position.Y = position.Y + (mText.Height * 0.5);
                       break;
                case MTextAttachmentPoint.BottomRight:
                case MTextAttachmentPoint.BottomLeft:
                       break;
            }