FeatureReduction.MaxScale hides individual graphic labels

LarsNess — Fri, 16 Aug 2024 13:14:45 GMT

Hi Esri and ArcGISRuntime enthusiasts!

We have a problem when using GraphicsOverlay.FeatureReduction.MaxScale. When this value is set, affected graphics seem to have their default LabelDefinition hidden when clustering is not active.

Given the sample below, can anyone spot an error in the code, or is there a known problem with this?

Thanks in advance for any help!

public GraphicsOverlay CreateGraphicsOverlay() { var graphicsOverlay = new GraphicsOverlay { IsVisible = true, Id = "points", Renderer = new SimpleRenderer(new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Square, Color.Blue, 16).ToMultilayerSymbol()), FeatureReduction = new ClusteringFeatureReduction(new SimpleRenderer { Symbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Circle, Color.IndianRed, 16) }) { //Label when clustering LabelDefinitions = { new LabelDefinition ( labelExpression: new SimpleLabelExpression(simpleExpression: "[cluster_count] CONCAT \" Items\""), textSymbol: new TextSymbol {Color = Color.Black, Size = 12} ) { Placement = LabelingPlacement.PointCenterCenter, } }, MinSymbolSize = 50, //BUG! WHEN THIS IS SET, MANY LABELS ARE NOT VISIBLE MaxScale = 30_000, }, //Label for individual points LabelsEnabled = true, LabelDefinitions = { new LabelDefinition ( labelExpression: new SimpleLabelExpression("[Name]"), textSymbol: new TextSymbol { Color = Color.Black, Size = 12, FontWeight = FontWeight.Bold, BackgroundColor = Color.White, HaloColor = Color.White, HaloWidth = 1, } ) { Placement = LabelingPlacement.PointBelowCenter, }, }, RenderingMode = GraphicsRenderingMode.Dynamic, }; var random = new Random(); for (var i = 0; i < 100; i++) { const double OsloN = 59.95138; const double OsloS = 59.91070; const double OsloE = 10.80758; const double OsloW = 10.70544; var x = OsloW + random.NextDouble() * (OsloE - OsloW); var y = OsloS + random.NextDouble() * (OsloN - OsloS); var graphic = new Graphic(new MapPoint(x, y, SpatialReferences.Wgs84)) { IsVisible = true, }; graphic.Attributes["Name"] = $"Point {i}"; graphicsOverlay.Graphics.Add(graphic); } return graphicsOverlay; }

Re: FeatureReduction.MaxScale hides individual graphic labels

PreetiMaske — Mon, 19 Aug 2024 18:10:46 GMT

Thanks for reporting the issue, I am able to reproduce the problem. I have logged an internal issue and will investigate this shortly.

Thanks,

Preeti

Re: FeatureReduction.MaxScale hides individual graphic labels

LarsNess — Wed, 21 Aug 2024 07:58:57 GMT

Thanks for looking into this!

topic Re: FeatureReduction.MaxScale hides individual graphic labels in .NET Maps SDK Questions

FeatureReduction.MaxScale hides individual graphic labels

Re: FeatureReduction.MaxScale hides individual graphic labels

Re: FeatureReduction.MaxScale hides individual graphic labels