Arc

Sealed shape drawer that renders arc segments using the Shapes library. Contains the nested Arc readonly struct for storing arc parameters and the ArcEndCap enum. The constructor converts angles from degrees to radians and negates the normal and angles to match the Shapes library's coordinate convention.

Definition

Namespace: Paragon.Core.ShapesDrawer Assembly: Paragon.dll

public sealed class ArcDrawer : ShapeDrawer<ArcDrawer.Arc>

Inheritance: ShapeDrawer<Arc> → ArcDrawer

Methods

Add

Enqueues an arc for rendering this frame.

public void Add(Vector3 pivot, Vector3 normal, float startAngle, float endAngle, float radius, Color color, float thickness = 1f, ArcEndCap arcEndCap = ArcEndCap.NONE)

Parameter	Type	Default	Description
pivot	Vector3	—	Arc center position
normal	Vector3	—	Normal direction of the arc plane
startAngle	float	—	Start angle in degrees
endAngle	float	—	End angle in degrees
radius	float	—	Arc radius
color	Color	—	Arc color
thickness	float	1f	Thickness in pixels
arcEndCap	ArcEndCap	NONE	End cap style

Draw

Renders all queued arcs. Applies lineGeometry and thicknessSpace, then iterates the queue calling Shapes.Draw.Arc() for each entry.

public override void Draw()

Arc Struct

Readonly struct holding all parameters for a single arc draw call.

public readonly struct Arc
{
    public readonly Vector3 Pivot;
    public readonly Vector3 Normal;
    public readonly float StartAngle;
    public readonly float EndAngle;
    public readonly float Radius;
    public readonly Color Color;
    public readonly float Thickness;
    public readonly ArcEndCap ArcEndCap;
}

The constructor negates the normal vector and converts angles from degrees to negated radians (-angle * Deg2Rad). This transforms from Paragon's convention (degrees, standard normal direction) to the Shapes library's internal convention.

ArcEndCap Enum

Paragon wrapper around the Shapes library's ArcEndCap enum.

public enum ArcEndCap
{
    NONE  = Shapes.ArcEndCap.None,
    ROUND = Shapes.ArcEndCap.Round
}

See Also

• ShapesDrawer — static API entry point (DrawArc)

• ShapeDrawer<TShape> — base class

• LineDrawer — similar pattern for lines

• Shapes — shapes overview