ValueFunctionRampL2 Class Reference

#include <valfunc.h>

Inheritance diagram for ValueFunctionRampL2:

ValueFunctionRamp ValueFunction ListItem CCObject SimpleCCObject List of all members.

Public Member Functions

 ValueFunctionRampL2 (double StartValue=1.0, double EndValue=0.2)
virtual double GetValue (double Position)
 To read the value of this function at a given position.
virtual ValueFunctionClone (void)
 Clone operator. Creates an exact copy of this object.
virtual INT32 GetMinimumRecursionDepth ()
 Overriden function to indicate to the path stroker how many recursions to perform at minimum before declaring a line segment 'flat' enough.
virtual ValueFunctionID GetUniqueID (void)

Protected Member Functions

virtual ValueFunctionCreateAndReadFileRecord (CXaraFileRecord *pInputRecord)
 Loads a ValueFunction object from a record which was saved into a file using the WriteFileRecord call. This is called by the base class loader routine ReadFileRecord, which finds an appropriate instance of a derived class to call to load the data in question.

Private Member Functions

 CC_DECLARE_DYNAMIC (ValueFunctionRampL2)

Detailed Description

Definition at line 472 of file valfunc.h.


Constructor & Destructor Documentation

ValueFunctionRampL2::ValueFunctionRampL2 double  StartValue = 1.0,
double  EndValue = 0.2
[inline]
 

Definition at line 477 of file valfunc.h.

00478                     :   ValueFunctionRamp(StartValue, EndValue)
00479                     {};


Member Function Documentation

ValueFunctionRampL2::CC_DECLARE_DYNAMIC ValueFunctionRampL2   )  [private]
 

ValueFunction * ValueFunctionRampL2::Clone void   )  [virtual]
 

Clone operator. Creates an exact copy of this object.

Author:
Priestley (Xara Group Ltd) <camelotdev@xara.com> from Jason
Date:
9/10/2000
Returns:
NULL if it failed, else an exact copy of this object

Implements ValueFunction.

Definition at line 1526 of file valfunc.cpp.

01527 {
01528     ValueFunction *pClone = new ValueFunctionRampL2(Value1, Value2);
01529     return(pClone);
01530 }

ValueFunction * ValueFunctionRampL2::CreateAndReadFileRecord CXaraFileRecord pInputRecord  )  [protected, virtual]
 

Loads a ValueFunction object from a record which was saved into a file using the WriteFileRecord call. This is called by the base class loader routine ReadFileRecord, which finds an appropriate instance of a derived class to call to load the data in question.

Author:
Priestley (Xara Group Ltd) <camelotdev@xara.com> from Jason
Date:
9/10/2000
Parameters:
pInputRecord - The file record to read [INPUTS]
Returns:
NULL if it failed, else a pointer to new ValueFunction object representing whatever was saved in that record.
This method creates a new instance of this particular ValueFunction class and then loads whatever information is necessary from the file to initialise itself properly. The record read-pointer is left pointing at the end of the ValueFunction-saved data so that the caller can continue reading their extra bytes of data after loading the ValueFunction.

See also:
ValueFunctionRamp::WriteFileRecord

Implements ValueFunction.

Definition at line 1561 of file valfunc.cpp.

01562 {
01563     ERROR3IF(pInputRecord == NULL, "Illegal NULL param");
01564 
01565     float Value1 = (float) 1.0;
01566     float Value2 = (float) 0.2;
01567 
01568     pInputRecord->ReadFLOAT(&Value1);
01569     pInputRecord->ReadFLOAT(&Value2);
01570 
01571     return(new ValueFunctionRampL2((double) Value1, (double) Value2));
01572 }

INT32 ValueFunctionRampL2::GetMinimumRecursionDepth  )  [virtual]
 

Overriden function to indicate to the path stroker how many recursions to perform at minimum before declaring a line segment 'flat' enough.

Author:
Priestley (Xara Group Ltd) <camelotdev@xara.com>
Date:
9/10/2000

Reimplemented from ValueFunction.

Definition at line 1507 of file valfunc.cpp.

01508 {
01509     return 2;
01510 }

virtual ValueFunctionID ValueFunctionRampL2::GetUniqueID void   )  [inline, virtual]
 

Implements ValueFunction.

Definition at line 485 of file valfunc.h.

00485 { return(ValueFunctionID_RampL2); };

double ValueFunctionRampL2::GetValue double  Position  )  [virtual]
 

To read the value of this function at a given position.

Author:
Priestley (Xara Group Ltd) <camelotdev@xara.com> from Jason
Date:
9/10/2000
Parameters:
Position - A value between 0.0 and 1.0 [INPUTS]
Returns:
A value (between Value1 and Value2 given in the constructor) representing the value of the function at the given Position.
Notes: RampL is a half sine-wave "S" shaped function

Implements ValueFunction.

Definition at line 1487 of file valfunc.cpp.

01488 {
01489     const double MixValue   = cos((Pi/2.0) + (Position * Pi/2.0)) + 1.0;
01490 
01491     return((MixValue * Value1) + ((1.0 - MixValue) * Value2));
01492 }


The documentation for this class was generated from the following files:
Generated on Sat Nov 10 04:02:49 2007 for Camelot by  doxygen 1.4.4