SilverSharpAPI

SilverSharp.ROUND_NODE

Structure

A SilverSharp.ROUND_NODE object stores information relevant to a SilverScreen circle, ellipse, or arc primitive

C# Code

class ROUND_NODE sealed : PRIM_NODE

{

ROUND_NODE(ROUND_NODE rhs);

ROUND_NODE(string round_path);

enum RoundTypes

{

Circle = 1,

Arc = 2,

};

property SS_XYZ horizontal { get; }

property SS_XYZ vertical { get; }

readonly SURFACE_NODE sn;

readonly TEXTURE_DATA texture;

readonly SS_XYZ CenterPoint;

property uint center { get; }

property double start_angle { get; }

property double stop_angle { get; }

property SS_RGB surface_rgb { get; }

property SS_RGB round_rgb { get; }

property uint surface_pattern_number { get; }

property WidthStyle round_width_style { get; }

property RoundTypes round_type { get; }

};

Properties

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

Name	Description
horizontal	A horizontal axis direction vector
vertical	A vertical axis direction vector
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.
center	A VERTEX number from the OBJECT_NODE that contains the circle, ellipse, or arc and which stores the center-point of the primitive.
start_angle	When the primitive is an arc or elliptical arc, this stores the start angle in radians.
stop_angle	When the primitive is an arc or elliptical arc, this stores the stop angle in radians.
surface_rgb	The fill color for closed circles and ellipses
round_rgb	The edge color for circles, ellipses, and arcs.
surface_pattern_number	The surface pattern index for closed circles and ellipses, or 0 if there is none.
round_width_style	A WidthStyle object that contains edge width and style index information for the primitive.
round_type	A RoundTypes enumeration that distinguishes between a circle and arc. A SilverSharp programmer may prefer the IsArc and IsCircle inherited properties.

The following read-only properties extend ROUND_NODE for SilverSharp:

Name	Description
CenterPoint	The 3D point that is the center of the circle, arc, or ellipse

Methods

Name	Description
ROUND_NODE	Constructors to initialize the object

Remarks

A circle can be differentiated from an arc by checking the SilverSharp.PRIM_NODE properties IsCircle or IsArc. Also, the IsClosed property indicates a circle.

A SilverSharp.ROUND_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.ROUND_NODE is a SilverSharp.PRIM_NODE, but the reverse is not true.