SilverSharpAPI

SilverSharp.POLYGON_NODE

Structure

A SilverSharp.POLYGON_NODE object stores information relevant to a SilverScreen polygon and polyline primitive

C# Code

class POLYGON_NODE sealed : PRIM_NODE

{

POLYGON_NODE(POLYGON_NODE rhs);

POLYGON_NODE(string polygon_path);

readonly SURFACE_NODE sn;

readonly TEXTURE_DATA texture;

property SS_RGB surface_rgb { get; }

property uint surface_pattern_number { get; }

property PrimList Children { get; }

property PRIM_NODE first_node { get; }

property PrimList Phantoms { get; }

property PRIM_NODE first_phantom { get; }

};

Properties

The following read-only properties mimic the purpose of their counter-parts in the SilverC POLYGON_NODE:

Name	Description
sn	A SURFACE_NODE reference, that if not null, stores the surface properties for rendering this primitive. When this member is null, then the surface properties from the parent OBJECT_NODE will be used to render this primitive.
texture	A TEXTURE_DATA reference, that if not null, stores the texture properties for rendering this primitive. When this member is null, then the texture properties from the parent OBJECT_NODE will be used to render this primitive.
surface_rgb	The fill color for closed circles and ellipses
surface_pattern_number	The surface pattern index for closed circles and ellipses, or 0 if there is none.
first_node	The first primitive in the list of arc and line primitives that create the polygon boundary. SilverSharp programmers might prefer using the Children enumerator.
first_phantom	The first primitive in the list of round primitives that have been turned into facets to construct the polygon boundary. SilverSharp programmers might prefer using the Phantoms enumerator

The following read-only properties extend POLYGON_NODE for SilverSharp:

Name	Description
Children	Enumerates the list of arc and line primitives that create the polygon boundary.
Phantoms	Enumerates the list of round primitives that have been turned into facets to construct the polygon boundary. This happens, for instance, when a polygon containing fillets is swept.

Members

Member	Description
POLYGON_NODE	Constructors to initialize the object

Remarks

A polygon can be differentiated from a polyline by checking the SilverSharp.PRIM_NODE properties IsPolygon or IsPolyline. Also, the IsClosed property indicates a polygon.

A SilverSharp.POLYGON_NODE inherits from a SilverSharp.PRIM_NODE and therefore includes those properties and methods as well; for instance, Path, Type, and PrimBits are inherited properties of a SilverSharp.PRIM_NODE.

Note: A SilverSharp.POLYGON_NODE is a SilverSharp.PRIM_NODE, but the reverse is not true.