AcCoreConsole: Explode DBText To Geometry

<?xml encoding=”UTF-8″>By Madhukar
Moogala

I received a query from one of our Technical Sales Specialist whose customer would like to automate a design workflow using Forge Design Automation one aspect of work flow is to explode Text objects in to Geometry [polylines and arcs].

We have an existing express tool called TXTEXP, unfortunately this tool is not available for Forge or AcCoreConsole, I created a simple C# program which explodes a text object in to geometry, this custom program can be used as custom command in AcCoreConsole.

public void EXPTXT()
{
var doc = Application.DocumentManager.MdiActiveDocument;
var db = doc.Database;
var ed = doc.Editor;
// selection text
ObjectId[] dbtextIds = ed.SelectTextEntitesInModelSpace();
foreach (ObjectId id in dbtextIds)
{
using (Transaction tr = db.TransactionManager.StartTransaction())
{
var text = (DBText)tr.GetObject(id, OpenMode.ForWrite);
ObjectId[] ids = new ObjectId[1];
ids[0] = id;
ed.SetImpliedSelection(ids);
var tempFile = Path.Combine(Path.GetTempPath(), "Q.wmf");
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
ed.Command("_.WMFOUT", tempFile, "", "");
var viewSize = (double)Application.GetSystemVariable("VIEWSIZE");
var screenSize = (Point2d)Application.GetSystemVariable("SCREENSIZE");
double factor = viewSize * (screenSize.X / screenSize.Y);
var viewCtr = (Point3d)Application.GetSystemVariable("VIEWCTR");
//Transform viewCtr from UCS to DCS
Matrix3d matUCS2DCS = ed.UCS2WCS() * ed.WCS2DCS();
viewCtr = viewCtr.TransformBy(matUCS2DCS);
var p1 = new Point3d(viewCtr.X - (factor / 2.0),
viewCtr.Y - (viewSize / 2.0), .0);
var p2 = new Point3d(viewCtr.X + (factor / 2.0),
viewCtr.Y + (viewSize / 2.0), .0);
//Transorm p1,p2 from DCS to UCS;
Matrix3d matDCS2UCS = ed.DCS2WCS() * ed.WCS2UCS();
p1 = p1.TransformBy(matDCS2UCS);
p2 = p2.TransformBy(matDCS2UCS);
Point2d wmfinBlockPos = new Point2d(p1.X, p2.Y);
var tempWithOutExt = Path.Combine(Path.GetDirectoryName(tempFile),
Path.GetFileNameWithoutExtension(tempFile));
ed.Command("_.WMFIN", tempWithOutExt, wmfinBlockPos, "2", "", "");
try
{
var wmfBlock = tr.GetObject(ed.SelectLastEnt(), OpenMode.ForWrite) as BlockReference;
DBObjectCollection pElems = new DBObjectCollection();
wmfBlock?.Explode(pElems);
var space = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
foreach (DBObject elem in pElems)
{
space.AppendEntity(elem as Entity);
tr.AddNewlyCreatedDBObject(elem, true);
}
//Purge unused WMFIN Block and reference
ObjectId wmfBtr = GetNonErasedTableRecordId(db.BlockTableId, wmfBlock.Name);
ObjectIdCollection blockIds = new ObjectIdCollection();
blockIds.Add(wmfBtr);
db.Purge(blockIds);
foreach (ObjectId oId in blockIds)
{
DBObject obj = tr.GetObject(oId, OpenMode.ForWrite);
obj.Erase();
}
}
catch (Exception ex)
{
ed.WriteMessage(ex.Message);
}
finally
{
//Erase text entity
text.Erase();
tr.Commit();
}
}
}
}

source:

Explode-Text-To-Geomety

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