I am trying to create a CIMUniqueValueRenderer from a table that contains JSON symbol definitions. The symbol definitions in that table were pulled from a stylx file.
I am trying to use CIMSymbolReference.FromJson() to deserialize each symbol definition, but it keeps failing with the cryptic error "Wrong type name". The documentation here is failing me.
A typical JSON string looks like this:
"{\"type\":\"CIMLineSymbol\",\"symbolLayers\":[{\"type\":\"CIMSolidStroke\",\"enable\":true,\"colorLocked\":true,\"primitiveName\":\"1.0\",\"capStyle\":\"Butt\",\"joinStyle\":\"Round\",\"lineStyle3D\":\"Strip\",\"miterLimit\":10,\"width\":0.43086614173228349,\"color\":{\"type\":\"CIMCMYKColor\",\"values\":[0,0,0,100,100]}}]}"Can anyone tell me why CIMSymbolReference.FromJson() chokes on this?
Is there another way to get from a JSON symbol definition to a symbol I can use in a CIMUniqueValueClass?
Code excerpt:
await ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() => {
using (Geodatabase geodatabase = new Geodatabase(DataHelper.connectionProperties)) {
QueryDef cfQDef = new QueryDef {
Tables = "CFSymbology",
PostfixClause = "order by key"
};
using (RowCursor rowCursor = geodatabase.Evaluate(cfQDef, false)) {
List<CIMUniqueValueClass> listUniqueValueClasses = new List<CIMUniqueValueClass>();
while (rowCursor.MoveNext()) {
using (Row row = rowCursor.Current) {
Debug.WriteLine(row["key"].ToString());
//create and load map unit
var cf = new CF();
cf.key = row["key"].ToString();
cf.symbol = row["symbol"].ToString();
//add it to our list
cfs.Add(cf);
//Create a "CIMUniqueValueClass" for the symbol and add it to the list of unique values.
//This is what creates the mapping from map unit to color
List<CIMUniqueValue> listUniqueValues = new List<CIMUniqueValue> {
new CIMUniqueValue {
FieldValues = new string[] { cf.key }
}
};
CIMUniqueValueClass uniqueValueClass = new CIMUniqueValueClass {
Editable = true,
Label = cf.key,
//Patch = PatchShape.Default,
Patch = PatchShape.AreaPolygon,
Symbol = CIMSymbolReference.FromJson(cf.symbol, null),
Visible = true,
Values = listUniqueValues.ToArray()
};
listUniqueValueClasses.Add(uniqueValueClass);
}
}
//Create a list of CIMUniqueValueGroup
CIMUniqueValueGroup uvg = new CIMUniqueValueGroup {
Classes = listUniqueValueClasses.ToArray(),
};
List<CIMUniqueValueGroup> listUniqueValueGroups = new List<CIMUniqueValueGroup> { uvg };
//Use the list to create the CIMUniqueValueRenderer
DataHelper.cfRenderer = new CIMUniqueValueRenderer {
UseDefaultSymbol = false,
Groups = listUniqueValueGroups.ToArray(),
Fields = new string[] { "key" }
};
//Set renderer in contactsandfaults layer. The try/catch is there because the first time through, this is called
//before the layer has been added to the map. We just ignore the error in that case.
try {
var cfLayer = MapView.Active.Map.GetLayersAsFlattenedList().First((l) => l.Name == "ContactsAndFaults") as FeatureLayer;
cfLayer.SetRenderer(DataHelper.cfRenderer);
} catch { }
}
}
});
