dymaptic.GeoBlazor.Core
dymaptic.GeoBlazor.Core.Components.Layers
Graphic Class
A Graphic is a vector representation of real world geographic phenomena. It can contain geometry, a symbol, and
attributes. A Graphic is displayed in the GraphicsLayer.
ArcGIS JS
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public class Graphic : dymaptic.GeoBlazor.Core.Components.Layers.LayerObject,
System.IEquatable<dymaptic.GeoBlazor.Core.Components.Layers.Graphic>
Inheritance System.Object 🡒 Microsoft.AspNetCore.Components.ComponentBase 🡒 MapComponent 🡒 LayerObject 🡒 Graphic
Implements System.IEquatable<Graphic>
Constructors
Graphic() Constructor
Parameterless constructor for using as a razor component
public Graphic();
Graphic(Geometry, Symbol, PopupTemplate, Dictionary<string,object>) Constructor
Constructs a new Graphic in code with parameters
public Graphic(dymaptic.GeoBlazor.Core.Components.Geometries.Geometry? geometry=null, dymaptic.GeoBlazor.Core.Components.Symbols.Symbol? symbol=null, dymaptic.GeoBlazor.Core.Components.Popups.PopupTemplate? popupTemplate=null, System.Collections.Generic.Dictionary<string,object>? attributes=null);
Parameters
geometry Geometry
The geometry that defines the graphic’s location.
symbol Symbol
The Symbol for the object.
popupTemplate PopupTemplate
The PopupTemplate for displaying content in a Popup when the graphic is selected.
attributes System.Collections.Generic.Dictionary<System.String,System.Object>
Name-value pairs of fields and field values associated with the graphic.
Properties
Graphic.Attributes Property
Name-value pairs of fields and field values associated with the graphic.
public System.Collections.Generic.Dictionary<string,object>? Attributes { get; set; }
Property Value
System.Collections.Generic.Dictionary<System.String,System.Object>
Graphic.DotNetGraphicReference Property
Internally used reference for JavaScript callbacks.
public Microsoft.JSInterop.DotNetObjectReference<dymaptic.GeoBlazor.Core.Components.Layers.Graphic> DotNetGraphicReference { get; }
Property Value
Microsoft.JSInterop.DotNetObjectReference<Graphic>
Graphic.Geometry Property
The geometry that defines the graphic’s location.
public dymaptic.GeoBlazor.Core.Components.Geometries.Geometry? Geometry { get; set; }
Property Value
Remarks
To retrieve a current geometry for a graphic, use GetGeometry() instead of calling this Property
directly.
Graphic.LayerId Property
The GeoBlazor Id of the parent layer, used when serializing the graphic to/from JavaScript.
public System.Nullable<System.Guid> LayerId { get; set; }
Property Value
Graphic.PopupTemplate Property
The PopupTemplate for displaying content in a Popup when the graphic is selected.
public dymaptic.GeoBlazor.Core.Components.Popups.PopupTemplate? PopupTemplate { get; set; }
Property Value
Remarks
To retrieve a current popup template for a graphic, use GetPopupTemplate() instead of calling this
Property directly.
Methods
Graphic.Equals(object) Method
Determines whether the specified object is equal to the current object.
public override bool Equals(object? obj);
Parameters
obj System.Object
The object to compare with the current object.
Returns
System.Boolean
true if the specified object is equal to the current object; otherwise, false.
Graphic.GetGeometry() Method
Retrieves the Geometry from the rendered graphic.
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Components.Geometries.Geometry?> GetGeometry();
Returns
System.Threading.Tasks.Task<Geometry>
Graphic.GetHashCode() Method
Serves as the default hash function.
public override int GetHashCode();
Returns
System.Int32
A hash code for the current object.
Graphic.GetPopupTemplate() Method
Retrieves the PopupTemplate from the rendered graphic.
public System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Components.Popups.PopupTemplate?> GetPopupTemplate();
Returns
System.Threading.Tasks.Task<PopupTemplate>
Graphic.GetSymbol() Method
Gets the current Symbol for the object.
public override System.Threading.Tasks.Task<dymaptic.GeoBlazor.Core.Components.Symbols.Symbol?> GetSymbol();
Returns
System.Threading.Tasks.Task<Symbol>
Graphic.OnGraphicCreated(IJSObjectReference) Method
Javascript-invokable internal method.
public void OnGraphicCreated(Microsoft.JSInterop.IJSObjectReference jsObjectReference);
Parameters
jsObjectReference Microsoft.JSInterop.IJSObjectReference
The javascript object reference for the rendered graphic.
Graphic.RegisterChildComponent(MapComponent) Method
Called from dymaptic.GeoBlazor.Core.Components.MapComponent.OnAfterRenderAsync(System.Boolean) to “Register” the current component with it’s parent.
public override System.Threading.Tasks.Task RegisterChildComponent(dymaptic.GeoBlazor.Core.Components.MapComponent child);
Parameters
child MapComponent
The calling, child component to register
Returns
Exceptions
InvalidChildElementException
Throws if the current child is not a valid sub-component to the parent.
Graphic.RegisterGraphic(IJSObjectReference) Method
Used internally to register a graphic that was generated in Javascript directly.
public System.Threading.Tasks.Task RegisterGraphic(Microsoft.JSInterop.IJSObjectReference jsObjectReference);
Parameters
jsObjectReference Microsoft.JSInterop.IJSObjectReference
Returns
Remarks
Not intended for end-user use.
Graphic.SetGeometry(Geometry) Method
Sets the Geometry on the rendered graphic.
public System.Threading.Tasks.Task SetGeometry(dymaptic.GeoBlazor.Core.Components.Geometries.Geometry geometry);
Parameters
geometry Geometry
Returns
Graphic.SetPopupTemplate(PopupTemplate) Method
Sets the PopupTemplate on the rendered graphic.
public System.Threading.Tasks.Task SetPopupTemplate(dymaptic.GeoBlazor.Core.Components.Popups.PopupTemplate popupTemplate);
Parameters
popupTemplate PopupTemplate
The PopupTemplate for displaying content in a Popup when the graphic is selected.
Returns
Graphic.UnregisterChildComponent(MapComponent) Method
Undoes the “Registration” of a child with its parent.
public override System.Threading.Tasks.Task UnregisterChildComponent(dymaptic.GeoBlazor.Core.Components.MapComponent child);
Parameters
child MapComponent
The child to unregister
Returns
Graphic.ValidateRequiredChildren() Method
When a MapView is prepared to render, this will check to make sure that all properties with the
RequiredPropertyAttribute are provided.
public override void ValidateRequiredChildren();
Exceptions
MissingRequiredChildElementException
The consumer needs to provide the missing child component
MissingRequiredOptionsChildElementException
The consumer needs to provide ONE of the options of child components
Operators
Graphic.operator ==(Graphic, Graphic) Operator
Compares two Graphic instances for equality.
public static bool operator ==(dymaptic.GeoBlazor.Core.Components.Layers.Graphic? left, dymaptic.GeoBlazor.Core.Components.Layers.Graphic? right);
Parameters
left Graphic
right Graphic
Returns
Graphic.operator !=(Graphic, Graphic) Operator
Compares two Graphic instances for inequality.
public static bool operator !=(dymaptic.GeoBlazor.Core.Components.Layers.Graphic? left, dymaptic.GeoBlazor.Core.Components.Layers.Graphic? right);
Parameters
left Graphic
right Graphic