public static bool EditFFLValue(ObjectId fflToEditId, double level)
{
Document acDoc = Autodesk.AutoCAD.ApplicationServices.Core.Application.DocumentManager.MdiActiveDocument;
Database acCurrDb = acDoc.Database;
Editor acEditor = acDoc.Editor;
using (Transaction acTrans = acCurrDb.TransactionManager.StartTransaction())
{
try
{
// Prompt user for new FFL
double?newFFL = 0.0; // Declare here to ensure in scope for later
BlockTable acBlkTbl = acTrans.GetObject(acCurrDb.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockReference fflBlock = acTrans.GetObject(fflToEditId, OpenMode.ForRead) as BlockReference;
BlockTableRecord acBlkTblRec = acTrans.GetObject(acBlkTbl[fflBlock.Name],
OpenMode.ForWrite) as BlockTableRecord;
if (acBlkTblRec == null)
{
acEditor.WriteMessage("\nError FFL block not found.");
return(false);
}
// Check there is only one instance of this block reference in the drawing
if (acBlkTblRec.GetBlockReferenceIds(false, true).Count != 1)
{
acEditor.WriteMessage("\nError more than one instance of the block reference.");
return(false);
}
// Iterate around the object collection to find the polyline to retrieve the current FFL value
newFFL = level;
double?fflDiff = 0.0;
foreach (ObjectId objId in acBlkTblRec)
{
// Fetch the object
Object fflObj = acTrans.GetObject(objId, OpenMode.ForWrite);
double?currFFL = 0.0;
if (fflObj.GetType() == typeof(Polyline))
{
Polyline acPline = fflObj as Polyline;
// Check the outline has an extension dictionary
DBDictionary acExtDict = (DBDictionary)acTrans.GetObject(acPline.ExtensionDictionary,
OpenMode.ForRead);
if (acExtDict == null)
{
acEditor.WriteMessage("\nError cannot retrieve the extension dictionary of polyline.");
return(false);
}
currFFL = JPPUtils.getFFL(acPline.Id);
if (currFFL == null)
{
acEditor.WriteMessage("\nError retrieving current FFL value.");
return(false);
}
fflDiff = newFFL - currFFL;
// Update FFL Xrecord
ResultBuffer resBuff = new ResultBuffer();
resBuff.Add(new TypedValue((int)DxfCode.ExtendedDataReal, newFFL));
// Overwrite the Xrecord with new data
if (!JPPUtils.addXrecord(objId, "FFL", resBuff))
{
acEditor.WriteMessage("\nError updating Xrecord with new FFL value.");
return(false);
}
// Update the levels Xrecords to reflect the new ffl
for (int vertexIndex = 0; vertexIndex < acPline.NumberOfVertices; vertexIndex++)
{
// Access Xrecord for the vertex and update the level value
ObjectId vertexXrecId = acExtDict.GetAt("Vertex_" + vertexIndex.ToString());
if (vertexXrecId == null)
{
acEditor.WriteMessage("\nError cannot retrieve vertex Xrecord");
acTrans.Abort();
return(false);
}
Xrecord vertexXrec = acTrans.GetObject(vertexXrecId, OpenMode.ForWrite) as Xrecord;
TypedValue[] vertexXrecData = vertexXrec.Data.AsArray();
// Get the current level
double currLevel = Convert.ToDouble(vertexXrecData[3].Value);
ResultBuffer newXrecData = new ResultBuffer();
newXrecData.Add(vertexXrecData[0]);
newXrecData.Add(vertexXrecData[1]);
newXrecData.Add(vertexXrecData[2]);
newXrecData.Add(new TypedValue((int)DxfCode.ExtendedDataReal, currLevel + fflDiff));
// Overwrite the data in the Xrecord with new data
vertexXrec.Data = newXrecData;
}
break;
}
}
// Iterate around the MText objects of the block to update the FFL text and
// levels text
foreach (ObjectId objId in acBlkTblRec)
{
// Fetch the object
Object fflObj = acTrans.GetObject(objId, OpenMode.ForWrite);
if (fflObj.GetType() == typeof(MText))
{
MText fflMText = (MText)fflObj;
if (fflMText.Text.StartsWith("FFL"))
{
double dblNewFFL = (double)newFFL;
fflMText.Contents = "FFL " + dblNewFFL.ToString("N3");
}
else
{
double currLevel = Convert.ToDouble(fflMText.Contents);
double newLevel = currLevel + (double)fflDiff;
fflMText.Contents = newLevel.ToString("N3");
}
}
}
// Update the graphics
fflBlock.UpgradeOpen();
fflBlock.RecordGraphicsModified(true);
acTrans.Commit();
return(true);
}
catch (Autodesk.AutoCAD.Runtime.Exception acException)
{
Autodesk.AutoCAD.ApplicationServices.Application.ShowAlertDialog
("The following exception was caught: \n" + acException.Message
+ "\nError editing FFL value!\n");
return(false);
}
}
// return true;
}
private static bool addAccessPoint(Point3d accessPoint, ObjectId dbObjectId, string level)
{
Document acDoc = Autodesk.AutoCAD.ApplicationServices.Core.Application.DocumentManager.MdiActiveDocument;
Database acCurrDb = acDoc.Database;
Editor acEditor = acDoc.Editor;
using (Transaction acTrans = acCurrDb.TransactionManager.StartTransaction())
{
// Add the access point to the 'buildingOutline' polyline by iterating around the polyline
// comparing the distance of each vertex from the start point to the distance of new
// point form the start point. When the new point distance is less than the current
// vertex add the new point.
//
// NOTE: this requires that the newpoint lies on the 'buildingOutline' polyline.
//
try
{
int accessPointIndex = 0;
// Fetch the polyline
Polyline buildingOutline = acTrans.GetObject(dbObjectId, OpenMode.ForWrite) as Polyline;
for (int index = 0; index <= buildingOutline.NumberOfVertices; index++)
{
// Check whether index is equal to the number of vertices. If it is the access
// point is lies on the segment from the last point of the building outline to the
// first point of the building outline so compare the distance to the new point against
// the length of the building outline
if (index == buildingOutline.NumberOfVertices)
{
if (buildingOutline.GetDistAtPoint(accessPoint) < buildingOutline.Length)
{
buildingOutline.AddVertexAt(index, new Point2d(accessPoint.X, accessPoint.Y), 0, 0, 0);
accessPointIndex = index;
break; // Make sure loop is not executed again
}
else
{
// Error condition
}
}
// Else check distance along polyline of new point against each vertex (corner) to find
// segment of outline where access point lies.
else
{
if (buildingOutline.GetDistAtPoint(accessPoint)
< buildingOutline.GetDistAtPoint(buildingOutline.GetPoint3dAt(index)))
{
buildingOutline.AddVertexAt(index, new Point2d(accessPoint.X, accessPoint.Y), 0, 0, 0);
accessPointIndex = index;
break; // Found segment to add
}
}
}
// SHOULD add a check in the above to trap case where the added point is a corner. Check with JPP on how to handle this.
// Now have the index of the new vertex so update the Xrecord name for each vertex beyond the added
// vertex before adding Xrecord for new vertex. First check that new vertex doesn't lie between the
// first and last vertices
// if (accessPointIndex < buildingOutline.NumberOfVertices - 2) // Not the last vertex
if (accessPointIndex < buildingOutline.NumberOfVertices - 1) // Not the last vertex
{
// Update name Xrecords for those beyond the new vertex
for (int index = buildingOutline.NumberOfVertices - 1; index > accessPointIndex; index--)
{
string newKey = "Vertex_" + index.ToString();
string oldKey = "Vertex_" + (index - 1).ToString();
bool accessPointAdded = JPPUtils.renameXrecord(dbObjectId, oldKey, newKey, true);
}
}
// Fetch the FFL double to calculte value of level
// Add the new Xrecord
ResultBuffer xrecVertexData = new ResultBuffer();
xrecVertexData.Add(new TypedValue((int)DxfCode.ExtendedDataInteger16, accessPointIndex));
xrecVertexData.Add(new TypedValue((int)DxfCode.ExtendedDataAsciiString, "Access_Point"));
xrecVertexData.Add(new TypedValue((int)DxfCode.ExtendedDataAsciiString, level));
// Need to calculate the actual level and therefore need the FFL
double?FFLDouble = JPPUtils.getFFL(dbObjectId);
// Add the level based on the FFL and whether the access point is at FFL or 150mm below FFL
if (level == "At_FFL")
{
xrecVertexData.Add(new TypedValue((int)DxfCode.ExtendedDataReal, FFLDouble));
}
else
{
xrecVertexData.Add(new TypedValue((int)DxfCode.ExtendedDataReal, (FFLDouble - 0.15)));
}
bool success = JPPUtils.addXrecord(dbObjectId, ("Vertex_" + accessPointIndex.ToString()), xrecVertexData);
acTrans.Commit();
return(true);
}
catch (Autodesk.AutoCAD.Runtime.Exception acException)
{
Autodesk.AutoCAD.ApplicationServices.Application.ShowAlertDialog
("The following exception was caught: \n" + acException.Message
+ "\nError adding access point!\n");
acTrans.Commit();
return(false);
}
}
}
