2.8.66 TimeRotationBehaviorAtom
Referenced by: TimeRotationBehaviorContainer
An atom record that specifies animation information for object rotation.
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rh |
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reserved |
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fBy |
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fFrom |
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fTo |
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rotationDirection |
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rh (8 bytes): A RecordHeader structure (section 2.3.1) that specifies the header for this record. Sub-fields are further specified in the following table.
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Field
Meaning
rh.recVer
MUST be 0x0.
rh.recInstance
MUST be 0x000.
rh.recType
MUST be an RT_TimeRotationBehavior.
rh.recLen
MUST be 0x00000014.
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A - fByPropertyUsed (1 bit): A bit that specifies whether fBy was explicitly set by a user interface action.
B - fFromPropertyUsed (1 bit): A bit that specifies whether fFrom was explicitly set by a user interface action. If fFromPropertyUsed is TRUE, fByPropertyUsed or fToPropertyUsed MUST also be TRUE.
C - fToPropertyUsed (1 bit): A bit that specifies whether fTo was explicitly set by a user interface action.
D - fDirectionPropertyUsed (1 bit): A bit that specifies whether rotationDirection was explicitly set by a user interface action.
reserved (28 bits): MUST be zero, and MUST be ignored.
fBy (4 bytes): A floating-point number that specifies the offset degree of rotation. It MUST be ignored if fByPropertyUsed is FALSE or if fToPropertyUsed is TRUE.
fFrom (4 bytes): A floating-point number that specifies the starting degree of rotation. It MUST be ignored if fFromPropertyUsed is FALSE and a value of 0 MUST be used instead.
fTo (4 bytes): A floating-point number that specifies the end degree of rotation. It MUST be ignored if fToPropertyUsed is FALSE and a value of 360 MUST be used instead.
rotationDirection (4 bytes): An unsigned integer that specifies the rotation direction. It MUST be ignored if fDirectionPropertyUsed is FALSE and a value of 0x00000000 MUST be used instead. It MUST be a value from the following table.
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Value
Meaning
0x00000000
Rotate clockwise.
0x00000001
Rotate counter clockwise.