/// <summary>
/// Initializes a new instance of the <see cref="Feature"/> class, and records it
/// as part of the map model.
/// </summary>
/// <param name="creator">The editing operation that created the feature (never null).</param>
/// <param name="id">The internal of this feature within the
/// project that created it. Specify an internal ID value of 0 for a temporary feature that should not be added
/// to the model.</param>
/// <param name="entityType">The type of real-world object that the feature corresponds to.</param>
/// <param name="featureId">The user-perceived ID (if any) for the feature. This is the ID that
/// is used to associate the feature with any miscellaneous attributes
/// that may be held in a database.</param>
protected Feature(Operation creator, InternalIdValue id, IEntity entityType, FeatureId featureId)
{
if (creator == null)
{
throw new ArgumentNullException("Creating operation must be defined");
}
if (entityType == null)
{
throw new ArgumentNullException("Entity type must be defined");
}
//if (sessionSequence == 0)
// throw new ArgumentException("Session sequence must be defined");
m_Creator = creator;
m_InternalId = id;
m_What = entityType;
m_References = null;
m_Flag = 0;
// If a user-defined ID is present, ensure it knows about this feature, and vice versa
m_Id = featureId;
if (m_Id != null)
{
m_Id.AddReference(this);
}
// Remember this feature as part of the model
if (!m_InternalId.IsEmpty)
{
m_Creator.MapModel.AddFeature(this);
}
}
/// <summary>
/// Reads an array of spatial features (using their unique IDs the read them from the map model).
/// </summary>
/// <typeparam name="T">The type of spatial feature expected by the caller</typeparam>
/// <param name="referenceFrom">The object that is making the reference</param>
/// <param name="field">A tag associated with the array</param>
/// <returns>The features that were read (should all be not null).</returns>
internal T[] ReadFeatureRefArray <T>(IFeatureRefArray referenceFrom, DataField field) where T : Feature
{
string[] ids = ReadSimpleArray <string>(field);
T[] result = new T[ids.Length];
List <ForwardRefArrayItem> fwRefs = null;
for (int i = 0; i < result.Length; i++)
{
InternalIdValue id = new InternalIdValue(ids[i]);
result[i] = MapModel.Find <T>(id);
if (result[i] == null)
{
if (fwRefs == null)
{
fwRefs = new List <ForwardRefArrayItem>();
}
fwRefs.Add(new ForwardRefArrayItem(id, i));
}
}
if (fwRefs != null)
{
m_ForwardRefs.Add(new ForwardFeatureRefArray(referenceFrom, field, fwRefs.ToArray()));
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="ForwardFeatureRef"/> class.
/// </summary>
/// <param name="referenceFrom">The object that makes the forward-reference (not null).</param>
/// <param name="field">The ID of the persistent field.</param>
/// <param name="iid">The internal ID that has been persisted for the field (relating to a feature
/// that has not been created yet).</param>
/// <exception cref="ArgumentNullException">If <paramref name="referenceFrom"/> is not defined.</exception>
internal ForwardFeatureRef(IFeatureRef referenceFrom, DataField field, InternalIdValue iid)
: base(field)
{
if (referenceFrom == null)
{
throw new ArgumentNullException();
}
ReferenceFrom = referenceFrom;
InternalId = iid;
}
/// <summary>
/// Records information for a line split
/// </summary>
/// <param name="parentLine">The line that may be getting split</param>
/// <param name="field">The tag of the item that should be attached to the line split info</param>
/// <param name="dataId">The ID for the section (null if there is no split)</param>
/// <returns>True if a line split was recorded, false if the <paramref name="splitSection"/> is null.</returns>
internal bool AddLineSplit(LineFeature parentLine, DataField field, string dataId)
{
if (dataId == null)
{
return(false);
}
InternalIdValue id = new InternalIdValue(dataId);
AddFeatureDescription(field, new FeatureStub(Creator, id, parentLine.EntityType, null));
return(true);
}
/// <summary>
/// Initializes a new instance of the <see cref="FeatureStub"/> class
/// that contains a copy of the properties of a feature.
/// </summary>
/// <param name="f">The feature containing the properties to copy (not null).</param>
/// <exception cref="ArgumentNullException">If the supplied feature is null.</exception>
internal FeatureStub(IFeature f)
{
if (f == null)
{
throw new ArgumentNullException();
}
m_Creator = f.Creator;
m_InternalId = f.InternalId;
m_What = f.EntityType;
m_Id = f.FeatureId;
}
/// <summary>
/// Initializes a new instance of the <see cref="FeatureStub"/> class
/// </summary>
/// <param name="creator">The editing operation that created the feature.</param>
/// <param name="id">The internal ID of the feature within
/// the project that created it.</param>
/// <param name="ent">The entity type for the feature (not null)</param>
/// <param name="fid">The (optional) user-perceived ID for the feature.</param>
/// <exception cref="ArgumentNullException">If either <paramref name="ent"/> or
/// <paramref name="creator"/> is null.</exception>
internal FeatureStub(Operation creator, InternalIdValue id, IEntity ent, FeatureId fid)
{
if (creator == null || ent == null)
{
throw new ArgumentNullException();
}
m_Creator = creator;
m_InternalId = id;
m_What = ent;
m_Id = fid;
}
/// <summary>
/// Creates a new <c>PointFeature</c> with geometry that isn't shared
/// with any other point.
/// </summary>
/// <param name="creator">The operation that created the feature (not null)</param>
/// <param name="id">The internal ID of this feature within the project that created it.</param>
/// <param name="e">The entity type for the feature (not null)</param>
/// <param name="g">The geometry for the point (may be null)</param>
internal PointFeature(Operation creator, InternalIdValue id, IEntity e, PointGeometry g)
: base(creator, id, e, null)
{
if (g == null)
{
m_Geom = null;
}
else
{
m_Geom = new Node(this, g);
}
}
/// <summary>
/// Creates a new line section
/// </summary>
/// <param name="itemName">The name for the item involved</param>
/// <param name="baseLine">The line that this section is part of</param>
/// <param name="from">The point at the start of the section</param>
/// <param name="to">The point at the end of the section</param>
/// <returns>The created section (never null)</returns>
internal virtual LineFeature CreateSection(string itemName, LineFeature baseLine, PointFeature from, PointFeature to)
{
IFeature f = FindFeatureDescription(itemName);
if (f == null)
{
InternalIdValue id = MapModel.WorkingSession.AllocateNextId();
f = new FeatureStub(m_Operation, id, baseLine.EntityType, baseLine.FeatureId);
}
return(new LineFeature(f, baseLine, from, to, baseLine.IsTopological));
}
private PointFeature EnsurePointExists(PointGeometry p, ILength tol, Operation creator)
{
PointFeature result = (PointFeature)m_Index.QueryClosest(p, tol, SpatialType.Point);
if (result == null)
{
IEntity e = creator.MapModel.DefaultPointType;
InternalIdValue id = CadastralMapModel.Current.WorkingSession.AllocateNextId();
result = new PointFeature(creator, id, e, p);
m_Index.Add(result);
m_Result.Add(result);
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="LegFace"/> class
/// using the data read from persistent storage.
/// </summary>
/// <param name="editDeserializer">The mechanism for reading back content.</param>
internal LegFace(EditDeserializer editDeserializer)
{
// Only connection paths should generate LegFace instances
PathOperation op = (editDeserializer.CurrentEdit as PathOperation);
if (op == null)
{
throw new ApplicationException("Unexpected creating edit for a leg face");
}
this.Sequence = editDeserializer.ReadInternalId(DataField.Id);
if (editDeserializer.IsNextField(DataField.PrimaryFaceId))
{
InternalIdValue primaryFaceId = editDeserializer.ReadInternalId(DataField.PrimaryFaceId);
LegFace face = op.FindFace(primaryFaceId);
if (face == null)
{
throw new ApplicationException("Cannot locate primary face " + primaryFaceId);
}
Leg = face.Leg;
Leg.AlternateFace = this;
}
else
{
// This should never happen. Primary faces are not serialized using the LegFace
// class (we only use LegFace as part of a PathOperation to simplify import of
// extra legs from old CEdit files).
throw new ApplicationException();
}
// Convert the data entry string into observed spans
string entryString = editDeserializer.ReadString(DataField.EntryString);
DistanceUnit defaultEntryUnit = EditingController.Current.EntryUnit;
Distance[] dists = LineSubdivisionFace.GetDistances(entryString, defaultEntryUnit, false);
m_Spans = new SpanInfo[dists.Length];
for (int i = 0; i < m_Spans.Length; i++)
{
m_Spans[i] = new SpanInfo()
{
ObservedDistance = dists[i]
};
}
}
/// <summary>
/// Creates a new <see cref="LineFeature"/> (with <see cref="SegmentGeometry"/>) using information previously
/// recorded via a call to <see cref="AddFeatureDescription"/>.
/// </summary>
/// <param name="itemName">The name for the item involved</param>
/// <param name="from">The point at the start of the line (not null).</param>
/// <param name="to">The point at the end of the line (not null).</param>
/// <returns>The created feature (never null)</returns>
internal virtual LineFeature CreateSegmentLineFeature(string itemName, PointFeature from, PointFeature to)
{
LineFeature result = null;
IFeature f = FindFeatureDescription(itemName);
if (f == null)
{
InternalIdValue id = MapModel.WorkingSession.AllocateNextId();
result = new LineFeature(m_Operation, id, LineType, from, to);
result.SetNextId();
}
else
{
result = new LineFeature(f, from, to);
}
return(result);
}
/// <summary>
/// Creates a new instance of <see cref="PointFeature"/>, with the currently
/// active entity type (and a user-perceived ID if it applies), and adds to the model.
/// </summary>
/// <returns>The new feature (never null)</returns>
internal virtual PointFeature CreatePointFeature(string itemName)
{
PointFeature result = null;
IFeature f = FindFeatureDescription(itemName);
if (f == null)
{
InternalIdValue id = MapModel.WorkingSession.AllocateNextId();
result = new PointFeature(m_Operation, id, PointType, null);
result.SetNextId();
}
else
{
result = new PointFeature(f, null);
}
return(result);
}
/// <summary>
/// Reads a reference to a spatial feature, using that reference to obtain the
/// corresponding feature.
/// </summary>
/// <typeparam name="T">The type of spatial feature expected by the caller</typeparam>
/// <param name="field">A tag associated with the value</param>
/// <returns>
/// The feature that was read (null if the feature reference is an internal ID of 0). May
/// actually have a type that is derived from the supplied type.
/// </returns>
/// <remarks>This does not create a brand new feature. Rather, it uses a reference
/// to try to obtain a feature that should have already been created.
/// <para/>
/// This version assumes that the referenced feature must have been already deserialized, which
/// should always be the case when dealing with edits that were created using Backsight. This
/// may NOT be the case when dealing with data files that originated in the old CEdit system.
/// The problem is that CEdit handled updates by modifying the objects holding the original
/// edits and, since it is valid to make use of features created after the initial edit (so
/// long as there is no dependency), it is possible that the features may be initially unknown
/// during deserialization.
/// <para/>
/// So if there is any possibility that the referenced feature may come later in the editing
/// sequence, use the version that also accepts an instance of <see cref="IFeatureRef"/>.
/// Note that for updates to be possible, the edit needs to implement <see cref="IRevisable"/>
/// (if updates are not possible, forward references should not be possible either).
/// </remarks>
/// <exception cref="ApplicationException">If the internal ID is defined, but the referenced feature
/// could not be found.</exception>
internal T ReadFeatureRef <T>(DataField field) where T : Feature
{
InternalIdValue id = m_Reader.ReadInternalId(field.ToString());
if (id.IsEmpty)
{
return(default(T));
}
T result = MapModel.Find <T>(id);
if (result == null)
{
throw new ApplicationException(String.Format("Cannot locate forward reference {0} (type={1})", id, typeof(T).Name));
}
return(result);
}
/// <summary>
/// Creates a new <see cref="ArcFeature"/> using information previously
/// recorded via a call to <see cref="AddFeatureDescription"/>.
/// </summary>
/// <param name="itemName">The name for the item involved</param>
/// <param name="from">The point at the start of the line (not null).</param>
/// <param name="to">The point at the end of the line (not null).</param>
/// <returns>The created feature (never null)</returns>
internal virtual ArcFeature CreateArcFeature(string itemName, PointFeature from, PointFeature to)
{
ArcFeature result = null;
IFeature f = FindFeatureDescription(itemName);
if (f == null)
{
InternalIdValue id = MapModel.WorkingSession.AllocateNextId();
result = new ArcFeature(m_Operation, id, LineType, null, from, to, true);
result.SetNextId();
}
else
{
result = new ArcFeature(f, from, to, null, f.EntityType.IsPolygonBoundaryValid);
}
return(result);
}
/// <summary>
/// Reads a reference to a spatial feature, using that reference to obtain the
/// corresponding feature. If the feature cannot be found, the reference will be cached as
/// a forward reference (on completion of deserialization, you then call <see cref="ApplyForwardRefs"/>
/// to process the cache).
/// </summary>
/// <typeparam name="T">The type of spatial feature expected by the caller</typeparam>
/// <param name="referenceFrom">The object that is making the reference</param>
/// <param name="field">A tag associated with the value</param>
/// <returns>
/// The feature that was read (null if not found, or the reference was undefined). May
/// actually have a type that is derived from the supplied type.
/// </returns>
/// <remarks>This does not create a brand new feature. Rather, it uses a reference
/// to try to obtain a feature that should have already been created.
/// </remarks>
internal T ReadFeatureRef <T>(IFeatureRef referenceFrom, DataField field) where T : Feature
{
InternalIdValue id = m_Reader.ReadInternalId(field.ToString());
if (id.IsEmpty)
{
return(default(T));
}
T result = MapModel.Find <T>(id);
if (result == null)
{
var fwRef = new ForwardFeatureRef(referenceFrom, field, id);
m_ForwardRefs.Add(fwRef);
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="IdMapping"/> class.
/// </summary>
/// <param name="internalId">The internal id.</param>
/// <param name="rawId">The raw value for an associated instance of <see cref="NativeId"/>.</param>
internal IdMapping(InternalIdValue internalId, uint rawId)
{
m_InternalId = internalId;
m_RawId = rawId;
}
private Feature ImportLine(ILength tol, Ntx.Line line, Operation creator)
{
// Circular arcs are handled elsewhere
if (line.IsCurve)
{
return(null);
}
IEntity what = GetEntityType(line, SpatialType.Line);
PointGeometry[] pts = GetPositions(line);
// Ignore zero-length lines
if (HasZeroLength(pts))
{
return(null);
}
// Ensure point features exist at both ends of the line.
PointFeature ps = EnsurePointExists(pts[0], tol, creator);
PointFeature pe = EnsurePointExists(pts[pts.Length - 1], tol, creator);
// Force end positions to match
pts[0] = ps.PointGeometry;
pts[pts.Length - 1] = pe.PointGeometry;
// It's possible we've now produced a zero-length line
if (Object.ReferenceEquals(ps, pe) && HasZeroLength(pts))
{
return(null);
}
// If we're dealing with a multi-segment, I have occasionally seen tiny glitches
// at the end of the incoming lines (whether this is a real data problem, or an
// imperfection in the import software is unknown). So double check now.
// In the longer term, the import software should also check for more complex
// issues, like missing intersections. In the meantime, I assume that incoming
// topological data is generally clean.
if (pts.Length > 2 && line.IsTopologicalArc)
{
pts = CheckMultiSegmentEnds(pts);
}
LineFeature result;
InternalIdValue id = CadastralMapModel.Current.WorkingSession.AllocateNextId();
if (pts.Length == 2)
{
result = new LineFeature(creator, id, what, ps, pe);
}
else
{
result = new LineFeature(creator, id, what, ps, pe, pts);
}
// The toological status of the incoming arc may override the status that the
// constructor derived from the entity type
result.SetTopology(line.IsTopologicalArc);
return(result);
}
private ArcFeature ImportArc(Ntx.Line line, Operation creator, ILength tol)
{
Debug.Assert(line.IsCurve);
IEntity what = GetEntityType(line, SpatialType.Line);
// Get positions defining the arc
PointGeometry[] pts = GetPositions(line);
// Ignore zero-length lines
if (HasZeroLength(pts))
{
return(null);
}
// Add a point at the center of the circle
Ntx.Position pos = line.Center;
PointGeometry pc = new PointGeometry(pos.Easting, pos.Northing);
PointFeature center = EnsurePointExists(pc, tol, creator);
// Calculate exact positions for the arc endpoints
double radius = line.Radius;
ICircleGeometry cg = new CircleGeometry(pc, radius);
IPosition bc = CircleGeometry.GetClosestPosition(cg, pts[0]);
IPosition ec = CircleGeometry.GetClosestPosition(cg, pts[pts.Length - 1]);
// Round off to nearest micron
PointGeometry bcg = PointGeometry.Create(bc);
PointGeometry ecg = PointGeometry.Create(ec);
// Ensure point features exist at both ends of the line.
PointFeature ps = GetArcEndPoint(bcg, tol, creator);
PointFeature pe = GetArcEndPoint(ecg, tol, creator);
// Try to find a circle that's already been added by this import.
Circle c = EnsureCircleExists(center, radius, tol, creator);
// Determine which way the arc is directed
bool iscw = LineStringGeometry.IsClockwise(pts, center);
InternalIdValue id = CadastralMapModel.Current.WorkingSession.AllocateNextId();
ArcFeature arc = new ArcFeature(creator, id, what, c, ps, pe, iscw);
// The toological status of the incoming arc may override the status that the
// constructor derived from the entity type
arc.SetTopology(line.IsTopologicalArc);
#if DEBUG
// Confirm the NTX data was valid (ensure it's consistent with what we've imported)...
double readRad = c.Radius;
double calcRad = BasicGeom.Distance(c.Center, ps);
Debug.Assert(Math.Abs(readRad - calcRad) < tol.Meters);
foreach (IPointGeometry pg in pts)
{
ILength check = arc.Geometry.Distance(pg);
Debug.Assert(check.Meters < tol.Meters);
}
#endif
return(arc);
}
/// <summary>
/// Writes an internal ID to a storage medium.
/// </summary>
/// <param name="field">The tag that identifies the item.</param>
/// <param name="id">The internal ID to write</param>
internal void WriteInternalId(DataField field, InternalIdValue id)
{
m_Writer.WriteInternalId(field.ToString(), id);
}
/// <summary>
/// Reads data that was previously written using <see cref="WriteData"/>
/// </summary>
/// <param name="editDeserializer">The mechanism for reading back content.</param>
/// <param name="id">The internal of the feature within the project that created it.</param>
/// <param name="entity">The type of real-world object that the feature corresponds to.</param>
/// <param name="fid">The ID of the feature (may be null).</param>
static void ReadData(EditDeserializer editDeserializer, out InternalIdValue id, out IEntity entity, out FeatureId fid)
{
id = editDeserializer.ReadInternalId(DataField.Id);
entity = editDeserializer.ReadEntity(DataField.Entity);
fid = editDeserializer.ReadFeatureId();
}
/// <summary>
/// Writes an internal ID to a storage medium.
/// </summary>
/// <param name="name">A name tag for the item</param>
/// <param name="id">The internal ID to write</param>
public void WriteInternalId(string name, InternalIdValue id)
{
WriteValue(name, id.ToString());
}
// none
#endregion
#region Constructors
/// <summary>
/// Creates a new <c>ArcFeature</c>
/// </summary>
/// <param name="creator">The operation that created the feature (not null)</param>
/// <param name="id">The internal ID of this feature within the project that created it.</param>
/// <param name="e">The entity type for the feature.</param>
/// <param name="c">The circle the arc coincides with</param>
/// <param name="bc">The point at the start of the arc</param>
/// <param name="ec">The point at the end of the arc</param>
/// <param name="isClockwise">True if the arc is directed clockwise from start to end</param>
internal ArcFeature(Operation creator, InternalIdValue id, IEntity e, Circle c, PointFeature bc, PointFeature ec, bool isClockwise)
: base(creator, id, e, bc, ec, new ArcGeometry(c, bc, ec, isClockwise))
{
}
/// <summary>
/// Creates a stub for an item on this face.
/// </summary>
/// <param name="itemSequence">The sequence number to assign to the stub</param>
/// <param name="ent">The entity type for the stub</param>
/// <returns>The created stub</returns>
FeatureStub CreateStub(Operation creator, uint itemSequence, IEntity ent)
{
InternalIdValue iid = new InternalIdValue(itemSequence);
return(new FeatureStub(creator, iid, ent, null));
}
private Feature ImportName(Ntx.Name name, Operation creator)
{
/*
* // Get pointer to the applicable map theme
* CeTheme theme(Name.GetTheme());
* CeTheme* pTheme = theme.AddTheme();
*
* // Get pointer to the entity type.
* GRAPHICSTYPE geom = ANNOTATION;
* if ( Name.IsLabel() ) geom = POLYGON;
* CeEntity* pEntity = AddEntity(Name.GetpFeatureCode(),pTheme,geom);
*/
IEntity entity = GetEntityType(name, SpatialType.Text);
// Get the text string
string text = name.Text;
// Get the position of the centre of the 1st character
Ntx.Position pos = name.Position(0);
IPosition vcentre = new Position(pos.Easting, pos.Northing);
// Get text metrics
float height = name.Height;
float spacing = name.Spacing;
float rotation = name.Rotation;
// Calculate the top left corner of the first character using
// the text metrics we just got ...
// Get the width of the first character. For names that contain
// only one character, the spacing we have will be zero, so in
// that case, deduce the width of the character via the covering
// rectangle.
float charwidth = spacing;
if (charwidth < Constants.TINY)
{
// Get the covering rectangle.
Ntx.Position nw = name.NorthWest;
Ntx.Position se = name.SouthEast;
// And get the dimensions.
double dx = se.Easting - nw.Easting;
double dy = nw.Northing - se.Northing;
// If the cover is screwed up, assume the width is 80% of the text height.
if (dy < Constants.TINY)
{
charwidth = (float)(height * 0.8);
}
else
{
charwidth = (float)(height * (dx / dy));
}
}
// Define the bearing from bottom to top of the text.
double vbear = (double)rotation;
// Get position directly above the centre of the 1st char.
IPosition above = Geom.Polar(vcentre, vbear, 0.5 * (double)height);
// Define the bearing from the point we just got to the
// start of the text string.
double hbear = vbear - Constants.PIDIV2;
// Back up half a character to get the initial corner.
PointGeometry topleft = new PointGeometry(Geom.Polar(above, hbear, 0.5 * (double)charwidth));
IFont font = null;
double width = (double)text.Length * charwidth;
TextFeature result = null;
if (name.IsLabel)
{
// Create key text
string keystr = name.Text;
KeyTextGeometry kt = new KeyTextGeometry(topleft, font, height, width, rotation);
InternalIdValue id = CadastralMapModel.Current.WorkingSession.AllocateNextId();
result = new TextFeature(creator, id, entity, kt);
kt.Label = result;
result.SetTopology(true);
// Define the label's foreign ID and form a two-way association
ForeignId fid = GetFeatureId(keystr);
Debug.Assert(fid != null);
fid.Add(result);
// Remember the reference position of the label.
Ntx.Position xp = name.RefPosition;
IPointGeometry pp = new PointGeometry(xp.Easting, xp.Northing);
result.SetPolPosition(pp);
}
else
{
// Create a miscellaneous text label.
MiscTextGeometry mt = new MiscTextGeometry(text, topleft, font, height, width, rotation);
InternalIdValue id = CadastralMapModel.Current.WorkingSession.AllocateNextId();
result = new TextFeature(creator, id, entity, mt);
result.SetTopology(false);
}
return(result);
}
/// <summary>
/// Creates a new text feature
/// </summary>
/// <param name="creator">The operation creating the text</param>
/// <param name="id">The internal ID of this feature within the
/// project that created it.</param>
/// <param name="ent">The entity type for the string.</param>
/// <param name="text">The text geometry (including the text string itself)</param>
/// </param>
internal TextFeature(Operation creator, InternalIdValue id, IEntity ent, TextGeometry text)
: base(creator, id, ent, null)
{
m_Geom = text;
m_Container = null;
}
private Feature ImportSymbol(Ntx.Symbol symbol, Operation creator)
{
IEntity what = GetEntityType(symbol, SpatialType.Point);
// Get the position
Ntx.Position pos = symbol.Position;
PointGeometry g = new PointGeometry(pos.Easting, pos.Northing);
// Ignore positions at 0,0!
if (g.Easting.Microns == 0 && g.Northing.Microns == 0)
{
return(null);
}
InternalIdValue id = CadastralMapModel.Current.WorkingSession.AllocateNextId();
PointFeature p = new PointFeature(creator, id, what, g);
/*
*
* static LOGICAL warned=FALSE; // debug
*
* // Get pointer to the map theme
* CeTheme theme(Symbol.GetTheme());
* const CeTheme* const pTheme = theme.AddTheme();
*
* // Get pointer to the entity
* CeEntity* pEntity = AddEntity(Symbol.GetpFeatureCode(),pTheme,VERTEX);
*
* // Get the position
* const CxPosition& pos = Symbol.GetPosition();
*
* // For the time being ...
* if ( !warned && pos.Is3D() ) {
* AfxMessageBox("Elevation data is being stripped.");
* warned = TRUE;
* }
*
* // Add the position of the symbol.
* CeVertex vtx(pos.GetEasting(),pos.GetNorthing()) ;
* const CeLocation* pLoc = pMap->AddLocation(vtx);
*
* // If the location does not already have an associated point
* // feature, add one now (the location may have been previously
* // added via the import of a line).
*
* // Note that this version of AddPoint will always add a duplicate
* // point at the specified location.
*
* CePoint* pPoint = pMap->AddPoint((CeLocation* const)pLoc,pEntity);
*/
// Define foreign ID (if any) ...
string keystr = symbol.Key;
ForeignId fid = GetFeatureId(keystr);
if (fid != null)
{
fid.Add(p);
}
return(p);
}
/// <summary>
/// Initializes a new instance of the <see cref="IdMapping"/> class
/// using the data read from persistent storage.
/// </summary>
/// <param name="editDeserializer">The mechanism for reading back content.</param>
internal IdMapping(EditDeserializer editDeserializer)
{
m_InternalId = editDeserializer.ReadInternalId(DataField.Id);
m_RawId = editDeserializer.ReadUInt32(DataField.Key);
}