Class CompositeDrawable

A drawable that wraps multiple child drawables into a single cache entry. Used when a single feature produces multiple drawable objects (e.g. a GeometryCollection with polygons and lines, or a feature with multiple coordinates). The composite uses the centroid of all children's world positions.

Inheritance
object
CompositeDrawable
Implements
Inherited Members
Namespace: Mapsui.Rendering
Assembly: Mapsui.dll
Syntax
public sealed class CompositeDrawable : IDrawable, IDisposable

Constructors

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CompositeDrawable(IReadOnlyList<IDrawable>)

Creates a new CompositeDrawable from the given children.

Declaration
public CompositeDrawable(IReadOnlyList<IDrawable> children)
Parameters
Type Name Description
IReadOnlyList<IDrawable> children

The child drawables. Must not be empty.

Properties

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Children

The child drawables. Owned by this composite and disposed with it.

Declaration
public IReadOnlyList<IDrawable> Children { get; }
Property Value
Type Description
IReadOnlyList<IDrawable>
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WorldX

The world X coordinate of this drawable (used to position it via viewport transform at draw time).

Declaration
public double WorldX { get; }
Property Value
Type Description
double
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WorldY

The world Y coordinate of this drawable (used to position it via viewport transform at draw time).

Declaration
public double WorldY { get; }
Property Value
Type Description
double

Methods

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Dispose()

Disposes all child drawables.

Declaration
public void Dispose()

Implements

Extension Methods