topic Re: Rotate point symbol based on a field in ArcGIS Pro SDK Questions

Rotate point symbol based on a field

AquanuityDevelopment — Tue, 06 Feb 2024 22:23:36 GMT

I just could not make this attribute driven symbology feature to work using ArcGIS Pro SDK. The following is a snippet of my code:

var render = lyr.CreateRenderer(simpleRender) as CIMSimpleRenderer;

var cimExpressionInfoZ = new CIMExpressionInfo { ReturnType=ExpressionReturnType.Numeric, Expression = "$feature.Direction" };
var cimVisualVariableInfoZ = new CIMVisualVariableInfo { VisualVariableInfoType = VisualVariableInfoType.Expression, ValueExpressionInfo = cimExpressionInfoZ};

var listCIMVisualVariables = new List<CIMVisualVariable>
{
new CIMRotationVisualVariable {
VisualVariableInfoZ = cimVisualVariableInfoZ,
RotationTypeZ=SymbolRotationType.Arithmetic
}
};

render.VisualVariables = listCIMVisualVariables.ToArray();

lyr.SetRenderer(render);

I would like to rotate the symbol based on a field called "Direction" with angles range 0 - 360. The symbols have been rotated but not according to the values in "Direction" fields. Any help will be great appreciated.

Re: Rotate point symbol based on a field

GKmieliauskas — Wed, 07 Feb 2024 09:37:05 GMT

Hi,

Try code below. It works for me.

protected override async void OnClick() { var featLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>().First(); await QueuedTask.Run(() => { var render = featLayer.GetRenderer() as CIMSimpleRenderer; var cimVisualVariableInfoXY = new CIMVisualVariableInfo { RandomMax = 360, RandomMin = 0, VisualVariableInfoType = VisualVariableInfoType.None }; var cimExpressionInfoZ = new CIMExpressionInfo { Title = "Custom", ReturnType = ExpressionReturnType.Default, Expression = "$feature.Direction" }; var cimVisualVariableInfoZ = new CIMVisualVariableInfo { RandomMax = 360, RandomMin = 0, VisualVariableInfoType = VisualVariableInfoType.Expression, ValueExpressionInfo = cimExpressionInfoZ }; var listCIMVisualVariables = new List<CIMVisualVariable> { new CIMRotationVisualVariable { VisualVariableInfoX = cimVisualVariableInfoXY, VisualVariableInfoY = cimVisualVariableInfoXY, VisualVariableInfoZ = cimVisualVariableInfoZ, RotationTypeZ=SymbolRotationType.Arithmetic, NormalToSurface = false } }; render.VisualVariables = listCIMVisualVariables.ToArray(); featLayer.SetRenderer(render); }); }

Re: Rotate point symbol based on a field

AquanuityDevelopment — Wed, 07 Feb 2024 16:10:40 GMT

@GKmieliauskas Thanks a lot. It is working now!

Re: Rotate point symbol based on a field

CharlesMacleod — Mon, 12 Feb 2024 16:35:40 GMT

nice one!