Interface IGLVertexManager

Namespace

SearchAThing.OpenGL.Core

Assembly

netcore-opengl-core.dll

Vertex manager primary purpose is to keep a linear sequence of distinct GLVertexStruct structs that will populated by the gl vertex GLVertex objects.
The same GLVertex reference cannot be registered twice in vertex manager, these stay connected to their figure primitives until removed from.

public interface IGLVertexManager : INotifyPropertyChanged

Inherited Members

INotifyPropertyChanged.PropertyChanged

Properties

ExpandModelBBox

Flag to state if vertex added to this vertex manager imply expansion of the gl model (Default: true).
More (custom) vertex manager can be registered into the gl model, may for temporary purpose and setting this variable to false at the construct of these custom vertex manager allow to unaffect the gl model bbox.
Should be used to avoid the zoomfit to evaluate temporary vertex manager figures.
GLVertexManager

bool ExpandModelBBox { get; }

Property Value

bool

FigureCount

Actual size of registered figures list.

int FigureCount { get; }

Property Value

int

Figures

Enumerates vertex manager registered figures.

IEnumerable<GLFigureBase> Figures { get; }

Property Value

IEnumerable<GLFigureBase>

LBBox

BBox of registered figure vertexes [local].

BBox LBBox { get; }

Property Value

BBox

TriangleCount

Actual count of gl triangles belonging to added figures.

int TriangleCount { get; }

Property Value

int

VertexCount

Actual size of GLVertexStruct vertex list.

int VertexCount { get; }

Property Value

int

Methods

AddFigure(GLFigureBase)

Adds given figure to the vertex manager.
All vertexes belonging to the figure's primitives will be added. Emits FigureAdded event.

void AddFigure(GLFigureBase figure)

Parameters

figure GLFigureBase

Figure to add.

Clear()

Clear all vertexes and figures from the vertex manager, and emit FiguresCleared and Invalidated event.

void Clear()

GetVboArray()

Used internally by the GLModel.RenderVertexManager to render the scene.

Contains the list of vertex structs directly mapped to the gpu.
This array will be built each time a vertex changes from the ToArray() of the list Vertexes. To avoid performance penalty in a scenario where you need to change the position of a figure you can use ObjectMatrix that doesn't affects at all vertexes because is a figure related information forwarded to the gl pipeline shader through UNINAME_uObject.

GLVertexStruct[] GetVboArray()

Returns

GLVertexStruct[]

RemoveFigure(GLFigureBase)

Remove given figure from the vertex manager.
All vertexes belonging to the figure's primitives will be removed. Emits FigureRemoved event.

bool RemoveFigure(GLFigureBase figure)

Parameters

figure GLFigureBase

Figure to remove.

Returns

bool

Events

FigureAdded

Event emitted when a figure was added.

event FigureEvent FigureAdded

Event Type

FigureEvent

FigureRemoved

Event emitted when a figure was removed.

event FigureEvent FigureRemoved

Event Type

FigureEvent

FiguresCleared

Event emitted when all figures cleared.
The list of figures removed is reported through the event argument of FiguresEvent delegate.

event FiguresEvent FiguresCleared

Event Type

FiguresEvent

Invalidated

Event emitted when a vertex was added or removed or all vertexes cleared.

Its used by the GLModel to track the model changes and emit a ViewInvalidated event.

event VertexManagerInvalidatedDelegate Invalidated

Event Type

VertexManagerInvalidatedDelegate

See Also

Clear()