Why do dimensions disapear when close and open map.

Question

I create dimension feature class I change the style, add dimensions to my map but when I reopen the map the dimensions are gone? Is there documentation I can read about this behavior. I am also interested in creating dimensions with python code but I have found no examples. Update- I created a button that creates a dim with style inside a geodatabase, now when I close and open the map the dimensions are just red polygons. after close and open arcmap before close and open Here is the code I sued to create the dimension feature class. IFeatureLayer pFeatureLayer = (IFeatureLayer)pBoundaryLayer; IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; string strCatalogPath = GetCatalogPath(pFeatureClass); IWorkspace pWorkspace = FileGDBWorkspaceFromPropertySet(strCatalogPath); IObjectClassDescription ocDescription = new DimensionClassDescription(); IFields pRequiredFields = ocDescription.RequiredFields; int intShapeFieldPosition = pRequiredFields.FindField("Shape"); IField pShapeField = pRequiredFields.get_Field(intShapeFieldPosition); IGeometryDef pGeomDef = pShapeField.GeometryDef; IGeometryDefEdit pGeomDefEdit = (IGeometryDefEdit)pGeomDef; ISpatialReferenceFactory3 pSpatRefFac = new SpatialReferenceEnvironmentClass(); ISpatialReference pSpatRef = pSpatRefFac.CreateSpatialReference(6578); IProjectedCoordinateSystem pProSpatRef = (IProjectedCoordinateSystem)pSpatRef; ILinearUnit linUnit = pProSpatRef.CoordinateUnit; pGeomDefEdit.SpatialReference_2 = pSpatRef; IFeatureWorkspace pFeatWorkspace = (IFeatureWorkspace)pWorkspace; string pName = "DIM"; IFeatureClass pNewFeatureClass = pFeatWorkspace.CreateFeatureClass(pName.ToString(), pRequiredFields, ocDescription.InstanceCLSID, ocDescription.ClassExtensionCLSID, esriFeatureType.esriFTDimension, "Shape", ""); ISchemaLock schemaLock = (ISchemaLock)pNewFeatureClass; try { schemaLock.ChangeSchemaLock(esriSchemaLock.esriExclusiveSchemaLock); IDimensionClassExtension dimExtension = (IDimensionClassExtension)pNewFeatureClass.Extension; dimExtension.ReferenceScale = 12000; dimExtension.ReferenceScaleUnits = esriUnits.esriFeet; IDimensionStyle dimensionStyle = new DimensionStyleClass(); dimensionStyle.Name = "BEARING_DISTANCE"; IDimensionStyleText dimText = (IDimensionStyleText)dimensionStyle; string expression = "def FindLabel ( [DIMLENGTH], [BEGINX] , [BEGINY] , [ENDX] , [ENDY] ):" + Environment.NewLine + " import math" + Environment.NewLine + " dY = float([ENDY]) -float( [BEGINY])" + Environment.NewLine + " dX = float( [ENDX])-float( [BEGINX])" + Environment.NewLine + " azimuth = math.atan2(dX, dY) * 180 / math.pi" + Environment.NewLine + " if azimuth < 0:" + Environment.NewLine + " azimuth = azimuth + 360" + Environment.NewLine + " if azimuth > 270 and azimuth<= 360:" + Environment.NewLine + " bearing = 360 - azimuth" + Environment.NewLine + " minutes,seconds = divmod(bearing * 3600, 60)" + Environment.NewLine + " degrees,minutes = divmod(minutes, 60)" + Environment.NewLine + " dmsBearing = \"N \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" W\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\"" + Environment.NewLine + " if azimuth > 180 and azimuth<= 270:" + Environment.NewLine + " bearing = azimuth - 180" + Environment.NewLine + " minutes,seconds = divmod(bearing * 3600, 60)"+ Environment.NewLine + " degrees,minutes = divmod(minutes, 60)"+ Environment.NewLine + " dmsBearing = \"S \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" W\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\"" + Environment.NewLine + " if azimuth > 90 and azimuth<= 180:" + Environment.NewLine + " bearing = 180 - azimuth" + Environment.NewLine + " minutes,seconds = divmod(bearing * 3600, 60)" + Environment.NewLine + " degrees,minutes = divmod(minutes, 60)" + Environment.NewLine + " dmsBearing = \"S \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" E\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\"" + Environment.NewLine + " if azimuth >= 0 and azimuth<= 90:" + Environment.NewLine + " minutes,seconds = divmod(azimuth * 3600, 60)" + Environment.NewLine + " degrees,minutes = divmod(minutes, 60)" + Environment.NewLine + " dmsBearing = \"N \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" E\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\"" + Environment.NewLine + " else:" + Environment.NewLine + " if azimuth > 270 and azimuth<= 360:" + Environment.NewLine + " bearing = 360 - azimuth" + Environment.NewLine + " minutes,seconds = divmod(bearing * 3600, 60)" + Environment.NewLine + " degrees,minutes = divmod(minutes, 60)" + Environment.NewLine + " dmsBearing = \"N \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" W\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\"" + Environment.NewLine + " if azimuth > 180 and azimuth<= 270:" + Environment.NewLine + " bearing = azimuth - 180" + Environment.NewLine + " minutes,seconds = divmod(bearing * 3600, 60)" + Environment.NewLine + " degrees,minutes = divmod(minutes, 60)" + Environment.NewLine + " dmsBearing = \"S \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" W\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\"" + Environment.NewLine + " if azimuth > 90 and azimuth<= 180:" + Environment.NewLine + " bearing = 180 - azimuth" + Environment.NewLine + " minutes,seconds = divmod(bearing * 3600, 60)" + Environment.NewLine + " degrees,minutes = divmod(minutes, 60)" + Environment.NewLine + " dmsBearing = \"S \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" E\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\"" + Environment.NewLine + " if azimuth >= 0 and azimuth<= 90:" + Environment.NewLine + " minutes,seconds = divmod(azimuth * 3600, 60)" + Environment.NewLine + " degrees,minutes = divmod(minutes, 60)" + Environment.NewLine + " dmsBearing = \"N \" + str(int(degrees)) + \"°\" + str(int(minutes)) + \"'\" + str(round(seconds, 2)) + \" E\"" + Environment.NewLine + " return dmsBearing + \" \" + str(round(float( [DIMLENGTH]), 2))+\"'\""; dimText.Expression = expression; dimText.ExpressionSimple = false; dimText.ExpressionParserName = "Python"; dimText.TextDisplay = esriDimensionTextDisplay.esriDimensionTDExpression; dimText.ExtendLineOnFit = false; stdole.IFontDisp iFont = new stdole.StdFontClass() as stdole.IFontDisp; iFont.Name = "Arial"; iFont.Size = 8; ITextSymbol txtSymbol = new TextSymbol(); txtSymbol.Font = iFont; dimText.TextSymbol = txtSymbol; IDimensionStyleDisplay dimDisplay = (IDimensionStyleDisplay)dimensionStyle; dimDisplay.MarkerDisplay = esriDimensionDisplay.esriDimensionDisplayBoth; IArrowMarkerSymbol mrkrSym = new ArrowMarkerSymbolClass(); mrkrSym.Size = 6; IMarkerSymbol newMrkrSym = (IMarkerSymbol)mrkrSym; dimDisplay.BeginMarkerSymbol = newMrkrSym; dimDisplay.EndMarkerSymbol = newMrkrSym; dimDisplay.MarkerFit = esriDimensionMarkerFit.esriDimensionMarkerFitText; IDimensionStyles dimensionStyles = dimExtension.DimensionStyles; dimensionStyles.AddStyle(dimensionStyle); } catch(COMException comExcept) { MessageBox.Show(comExcept.StackTrace.ToString()); } finally { schemaLock.ChangeSchemaLock(esriSchemaLock.esriSharedSchemaLock); MessageBox.Show("The Dimension Feature Class Has Been Created"); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Is there something I can add to make this layer persist?

GARYLESTER · Answer

I implemented persistence on the Dimension Style and now the Dimensions show up when I open a map with dimensions,