Class TSFFloat

Unit

Declaration

type TSFFloat = class(TX3DSingleField)

Description

X3D field containing a floating-point value with Single precision.

Hierarchy

TObject
TPersistent
TX3DFileItem
TX3DFieldOrEvent
TX3DField
TX3DSingleField
TSFFloat

Overview

Fields

	`DefaultValue: Single;`
	`DefaultValueExists: boolean;`

Methods

	`constructor Create(const AParentNode: TX3DFileItem; const AExposed: boolean; const AName: string; const AValue: Single);`
	`procedure ParseValue(Lexer: TX3DLexer; Reader: TX3DReader); override;`
	`function EqualsDefaultValue: boolean; override;`
	`function Equals(SecondValue: TX3DField): boolean; override;`
	`function FastEqualsValue(SecondValue: TX3DField): boolean; override;`
	`procedure AssignLerp(const A: Double; Value1, Value2: TX3DField); override;`
	`function CanAssignLerp: boolean; override;`
	`procedure Assign(Source: TPersistent); override;`
	`procedure AssignValue(Source: TX3DField); override;`
	`procedure AssignDefaultValueFromValue; override;`
	`procedure UnassignDefaultValue; override;`
	`class function X3DType: string; override;`
	`class function CreateEvent(const AParentNode: TX3DFileItem; const AName: string; const AInEvent: boolean): TX3DEvent; override;`
	`procedure Send(const AValue: Single); overload;`

Properties

	`property Value: Single read FValue write SetValue;`
	`property MustBeNonnegative: Boolean read FMustBeNonnegative write SetMustBeNonnegative default false;`
	`property Angle: boolean read FAngle write FAngle default false;`

Description

Fields

	`DefaultValue: Single;`

	`DefaultValueExists: boolean;`

Methods

	`constructor Create(const AParentNode: TX3DFileItem; const AExposed: boolean; const AName: string; const AValue: Single);`

	`procedure ParseValue(Lexer: TX3DLexer; Reader: TX3DReader); override;`

	`function EqualsDefaultValue: boolean; override;`

	`function Equals(SecondValue: TX3DField): boolean; override;`

	`function FastEqualsValue(SecondValue: TX3DField): boolean; override;`

	`procedure AssignLerp(const A: Double; Value1, Value2: TX3DField); override;`

	`function CanAssignLerp: boolean; override;`

	`procedure Assign(Source: TPersistent); override;`

	`procedure AssignValue(Source: TX3DField); override;`

	`procedure AssignDefaultValueFromValue; override;`

	`procedure UnassignDefaultValue; override;`

	`class function X3DType: string; override;`

	`class function CreateEvent(const AParentNode: TX3DFileItem; const AName: string; const AInEvent: boolean): TX3DEvent; override;`

	`procedure Send(const AValue: Single); overload;`

Properties

	`property Value: Single read FValue write SetValue;`
Current field value.

	`property MustBeNonnegative: Boolean read FMustBeNonnegative write SetMustBeNonnegative default false;`
Set this to `True` to request that only values >= 0 are valid. Trying to set Value to something < 0 will make a warning and fix it (for now – by negating it, but don't depend on this "fix" algorithm). Also when changing this to `True` while current Value is invalid, it will also be fixed and make a warning.

	`property Angle: boolean read FAngle write FAngle default false;`
Value represents an angle. When reading from X3D 3.3 file, we will make sure it's expressed in radians, honoring optional "UNIT angle ..." declaration in X3D file.

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