Class TCurve
Unit
Declaration
type TCurve = class(TObject)
Description
3D curve, a set of points defined by a continuous function Point for arguments within [TBegin, TEnd].
Hierarchy
- TObject
- TCurve
Overview
Fields
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nested const DefaultSegments = 32; |
Methods
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procedure LoadFromElement(const E: TDOMElement); virtual; |
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procedure SaveToStream(const Stream: TStream); virtual; |
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constructor Create; |
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function Point(const t: Float): TVector3; virtual; abstract; |
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function Point2D(const t: Float): TVector2; |
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function PointOfSegment(const i, Segments: Cardinal): TVector3; |
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class function LoadFromFile(const Url: String): TCurve; |
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function BoundingBox: TBox3D; virtual; abstract; |
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function GeometryNode(const Segments: Cardinal = DefaultSegments): TAbstractGeometryNode; |
Properties
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property TBegin: Single read FTBegin write FTBegin default 0; |
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property TEnd: Single read FTEnd write FTEnd default 1; |
Description
Fields
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nested const DefaultSegments = 32; |
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This item has no description. | |
Methods
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procedure LoadFromElement(const E: TDOMElement); virtual; |
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This item has no description. | |
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procedure SaveToStream(const Stream: TStream); virtual; |
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This item has no description. | |
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constructor Create; |
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This item has no description. | |
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function Point(const t: Float): TVector3; virtual; abstract; |
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Curve function, for each parameter value determine the 3D point. This determines the actual shape of the curve. This is the simplest approach to calculate points on a curve. | |
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function Point2D(const t: Float): TVector2; |
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This item has no description. | |
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function PointOfSegment(const i, Segments: Cardinal): TVector3; |
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Curve function to work with rendered line segments begin/end points. This is simply a more specialized version of Point, it scales the argument such that you get Point(TBegin) for I = 0 and you get Point(TEnd) for I = Segments. | |
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class function LoadFromFile(const Url: String): TCurve; |
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Load the first curve defined in given XML file. Hint: use https://castle-engine.io/curves_tool to design curves visually. | |
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function BoundingBox: TBox3D; virtual; abstract; |
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This item has no description. | |
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function GeometryNode(const Segments: Cardinal = DefaultSegments): TAbstractGeometryNode; |
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Represent this curve as an X3D geometry node, that you can use to visualize this. | |
Properties
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property TBegin: Single read FTBegin write FTBegin default 0; |
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The valid range of curve function argument. Must be | |
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property TEnd: Single read FTEnd write FTEnd default 1; |
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This item has no description. | |
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