SixelVisibility

Namespace: Hex1b.Surfaces

Assembly: Hex1b.dll

Tracks visibility information for a sixel during compositing.

public sealed class SixelVisibility

Inheritance

Object → SixelVisibility

Constructors

SixelVisibility(TrackedObject<SixelData>, int, int, int)

Creates a new sixel visibility tracker.

Parameters:

• sixel (TrackedObject<SixelData>):
• anchorX (Int32):
• anchorY (Int32):
• layerIndex (Int32):

public SixelVisibility(TrackedObject<SixelData> sixel, int anchorX, int anchorY, int layerIndex)

Properties

AnchorPosition

Gets the anchor cell position (top-left of the sixel).

Returns: ValueTuple<Int32, Int32>

public (int X, int Y) AnchorPosition { get; }

IsFragmented

Gets whether this sixel is fragmented (partially occluded, multiple visible regions).

Returns: Boolean

public bool IsFragmented { get; }

IsFullyOccluded

Gets whether this sixel is fully occluded (not visible at all).

Returns: Boolean

public bool IsFullyOccluded { get; }

IsFullyVisible

Gets whether this sixel is fully visible (no occlusion).

Returns: Boolean

public bool IsFullyVisible { get; }

LayerIndex

Gets the layer index this sixel belongs to.

Returns: Int32

public int LayerIndex { get; }

Sixel

Gets the original sixel data.

Returns: TrackedObject<SixelData>

public TrackedObject<SixelData> Sixel { get; }

VisibleRegions

Gets the visible pixel regions after occlusion. Empty if fully occluded.

Returns: IReadOnlyList<PixelRect>

public IReadOnlyList<PixelRect> VisibleRegions { get; }

Methods

ApplyOcclusion(Rect, CellMetrics)

Applies an occlusion rectangle in cell coordinates to this Sixel image, using the protocol cell metrics captured when the image was created.

Parameters:

• occlusionCellRect (Rect): The occluding rectangle in cell coordinates.
• metrics (CellMetrics): Ignored. Sixel placement metrics are captured by .

[Obsolete("Cell metrics are captured by SixelData. Use ApplyOcclusion(Rect).")]
public void ApplyOcclusion(Rect occlusionCellRect, CellMetrics metrics)

ApplyOcclusion(Rect)

Applies an occlusion rectangle in cell coordinates to this Sixel image, using the protocol cell metrics captured when the image was created.

Parameters:

• occlusionCellRect (Rect): The occluding rectangle in cell coordinates.

public void ApplyOcclusion(Rect occlusionCellRect)

GenerateFragments()

Generates fragments for the visible regions of this Sixel image using the protocol cell metrics captured when the image was created.

Returns: IReadOnlyList<SixelFragment>

List of fragments to render.

public IReadOnlyList<SixelFragment> GenerateFragments()

GenerateFragments(CellMetrics)

Generates fragments for the visible regions of this Sixel image using the protocol cell metrics captured when the image was created.

Parameters:

• metrics (CellMetrics): Ignored. Sixel placement metrics are captured by .

Returns: IReadOnlyList<SixelFragment>

List of fragments to render.

[Obsolete("Cell metrics are captured by SixelData. Use GenerateFragments().")]
public IReadOnlyList<SixelFragment> GenerateFragments(CellMetrics metrics)