MontiVision DirectShow SDK Documentation

CalcOutputSize	Calculate the optimal output image size.
CalcParameters	Calculate the optimal default parameters.
EndAngle	Get/Set the end angle of the polar image circle.
FlipImage	Get/Set the vertical flipping flag.
GetMaxCircle	Get the maximum possible circle for the polar image. The returned value is the maximum value which can be selected as outer circle for the polar image.
GetParamState	Get the parameter state flag, which indicates whether the filters parameters have changed after CalcParameters or CalcOutputSize has been called.
InnerCircle	Get/Set the inner circle radius of the polar image.
Interpolation	Get or set the transformation algorithms interpolation method as MV_POLAR_INTERPOLATION.
OuterCircle	Get/Set the outer circle radius of the polar image.
OutputHeight	Get/set the output video height. Only possible while the filters output pin is unconnected.
OutputWidth	Get/Set the output video width.Only possible while the filters output pin is unconnected.
ReverseImage	Get/Set the horizontally flipping flag.
StartAngle	Get/Set the start angle of the polar image circle.
Transformation	Get/Set the transformation method as MV_POLAR_TRANSFORMATION.
XOrigin	Get/Set the horizontal origin of the polar image.
YOrigin	Get/Set the vertical origin of the polar image.

Header file: IMVPolar.h
Interface definition language file: IMVPolar.idl
Typelib: MVPolar
Interface ID: IID_IMVPolar

Method IMVPolar::CalcOutputSize

Declaration: Sub CalcOutputSize
Calculate the optimal output image size.

Parameter:

- -

C Prototype:
HRESULT CalcOutputSize();

Method IMVPolar::CalcParameters

Declaration: Sub CalcParameters
Calculate the optimal default parameters.

Parameter:

- -

C Prototype:
HRESULT CalcParameters();

Property IMVPolar::EndAngle

Declaration: Property Get/Put EndAngle As Long
Get/Set the end angle of the polar image circle.

Parameter:

- -

C Prototype:
HRESULT put_EndAngle(LONG newVal);
HRESULT get_EndAngle(LONG *pVal);

Property IMVPolar::FlipImage

Declaration: Property Get/Put FlipImage As Long
Get/Set the vertical flipping flag.

Parameter:

- -

C Prototype:
HRESULT put_FlipImage(LONG newVal);
HRESULT get_FlipImage(LONG *pVal);

Method IMVPolar::GetMaxCircle

Declaration: Function GetMaxCircle As Long
Get the maximum possible circle for the polar image. The returned value is the maximum value which can be selected as outer circle for the polar image.

Parameter:

- -

C Prototype:
HRESULT GetMaxCircle(LONG* value);

Method IMVPolar::GetParamState

Declaration: Function GetParamState As Long
Get the parameter state flag, which indicates whether the filters parameters have changed after CalcParameters or CalcOutputSize has been called.

Parameter:

- -

C Prototype:
HRESULT GetParamState(LONG* value);

Property IMVPolar::InnerCircle

Declaration: Property Get/Put InnerCircle As Long
Get/Set the inner circle radius of the polar image.

Parameter:

- -

C Prototype:
HRESULT put_InnerCircle(LONG newVal);
HRESULT get_InnerCircle(LONG *pVal);

Property IMVPolar::Interpolation

Declaration: Property Get/Put Interpolation As Long
Get or set the transformation algorithms interpolation method.

Parameter:

- -

C Prototype:
HRESULT put_Interpolation(LONG newVal);
HRESULT get_Interpolation(LONG *pVal);

Property IMVPolar::OuterCircle

Declaration: Property Get/Put OuterCircle As Long
Get/Set the outer circle radius of the polar image.

Parameter:

- -

C Prototype:
HRESULT put_OuterCircle(LONG newVal);
HRESULT get_OuterCircle(LONG *pVal);

Property IMVPolar::OutputHeight

Declaration: Property Get/Put OutputHeight As Long
Get/set the output video height. Only possible while the filters output pin is unconnected.

Parameter:

- -

C Prototype:
HRESULT put_OutputHeight(LONG newVal);
HRESULT get_OutputHeight(LONG *pVal);

Property IMVPolar::OutputWidth

Declaration: Property Get/Put OutputWidth As Long
Get/Set the output video width.Only possible while the filters output pin is unconnected.

Parameter:

- -

C Prototype:
HRESULT put_OutputWidth(LONG newVal);
HRESULT get_OutputWidth(LONG *pVal);

Property IMVPolar::ReverseImage

Declaration: Property Get/Put ReverseImage As Long
Get/Set the horizontally flipping flag.

Parameter:

- -

C Prototype:
HRESULT put_ReverseImage(LONG newVal);
HRESULT get_ReverseImage(LONG *pVal);

Property IMVPolar::StartAngle

Declaration: Property Get/Put StartAngle As Long
Get the start angle.

Parameter:

- -

C Prototype:
HRESULT put_StartAngle(LONG newVal);
HRESULT get_StartAngle(LONG *pVal);

Property IMVPolar::Transformation

Declaration: Property Get/Put Transformation As Long
Get/Set the transformation method.

Parameter:

- -

C Prototype:
HRESULT put_Transformation(LONG newVal);
HRESULT get_Transformation(LONG *pVal);

Property IMVPolar::XOrigin

Declaration: Property Get/Put XOrigin As Long
Get/Set the horizontal origin of the polar image. By default the center of the image.

Parameter:

- -

C Prototype:
HRESULT put_XOrigin(LONG newVal);
HRESULT get_XOrigin(LONG *pVal);

Property IMVPolar::YOrigin

Declaration: Property Get/Put YOrigin As Long
Get/Set the vertical origin of the polar image. By default the center of the image.

Parameter:

- -

C Prototype:
HRESULT put_YOrigin(LONG newVal);
HRESULT get_YOrigin(LONG *pVal);

Enumerations

typedef enum _MV_POLAR_INTERPOLATION
{
MV_POLAR_NN,
MV_POLAR_BILINEAR
} MV_POLAR_INTERPOLATION;

typedef enum _MV_POLAR_TRANSFORMATION
{
MV_RECTANGLE_TO_POLAR,
MV_POLAR_TO_RECTANGLE
} MV_POLAR_TRANSFORMATION;