PdfToolbox_PtxGeomReal.h File Reference

#include "PdfToolbox_Types.h"
#include "PdfToolbox_PtxSys.h"

Go to the source code of this file.

Macros
#define	PDFTOOLBOX_CALL

Functions
PDFTOOLBOX_EXPORT TPtxGeomReal_QuadrilateralList *PDFTOOLBOX_CALL	PtxGeomReal_QuadrilateralList_New (void)
PDFTOOLBOX_EXPORT int PDFTOOLBOX_CALL	PtxGeomReal_QuadrilateralList_GetCount (TPtxGeomReal_QuadrilateralList *pQuadrilateralList)
	Get the number of elements in the list.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_QuadrilateralList_Get (TPtxGeomReal_QuadrilateralList *pQuadrilateralList, int iIndex, TPtxGeomReal_Quadrilateral *pQuadrilateral)
	Returns the element at the specified position in the given list.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_QuadrilateralList_Add (TPtxGeomReal_QuadrilateralList *pQuadrilateralList, const TPtxGeomReal_Quadrilateral *pQuadrilateral)
	Add an element to the end of the list.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_QuadrilateralList_Clear (TPtxGeomReal_QuadrilateralList *pQuadrilateralList)
	Clear list.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_QuadrilateralList_Remove (TPtxGeomReal_QuadrilateralList *pQuadrilateralList, int iIndex)
	Remove certain element from list.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_QuadrilateralList_Set (TPtxGeomReal_QuadrilateralList *pQuadrilateralList, int iIndex, const TPtxGeomReal_Quadrilateral *pValue)
	Update certain element in list.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_Translate (TPtxGeomReal_AffineTransform *pAffineTransform, double tx, double ty)
	Translate. Translations are specified as [1 0 0 1 tx ty], where tx and ty are the distances to translate the origin of the coordinate system in the horizontal and vertical dimensions, respectively.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_Scale (TPtxGeomReal_AffineTransform *pAffineTransform, double sx, double sy)
	Scale. Scaling is obtained by [sx 0 0 sy 0 0]. This scales the coordinates so that 1 unit in the horizontal and vertical dimensions of the new coordinate system is the same size as sx and sy units, respectively, in the previous coordinate system.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_Rotate (TPtxGeomReal_AffineTransform *pAffineTransform, double dAngle, const TPtxGeomReal_Point *pCenter)
	Rotate.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_Skew (TPtxGeomReal_AffineTransform *pAffineTransform, double dAlpha, double dBeta)
	Skew. Skew is specified by [1 tan a tan b 1 0 0], which skews the x axis by an angle a and the y axis by an angle b.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_Concatenate (TPtxGeomReal_AffineTransform *pAffineTransform, const TPtxGeomReal_AffineTransform *pOther)
	Concatenate transform with other transform. Concatenating a transform with an other transform is equivalent to left-multiplying the transform's matrix with with the other transform's matrix.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_Invert (TPtxGeomReal_AffineTransform *pAffineTransform)
	Invert the transform A transform usually maps from the transformed coordinate system to the untransformed coordinate system. Use this method to create the reverse transform.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_TransformPoint (TPtxGeomReal_AffineTransform *pAffineTransform, const TPtxGeomReal_Point *pOriginal, TPtxGeomReal_Point *pPoint)
	Transforms the given point.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_TransformRectangle (TPtxGeomReal_AffineTransform *pAffineTransform, const TPtxGeomReal_Rectangle *pOriginal, TPtxGeomReal_Quadrilateral *pQuadrilateral)
	Transform the given rectangle For a general affine transformation, the returned TPtxGeomReal_Quadrilateral is a parallelogram.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_TransformQuadrilateral (TPtxGeomReal_AffineTransform *pAffineTransform, const TPtxGeomReal_Quadrilateral *pOriginal, TPtxGeomReal_Quadrilateral *pQuadrilateral)
	Transform a given quadrilateral If the input quadrilateral is a parallelogram, then the output is also a parallelogram.
PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL	PtxGeomReal_AffineTransform_GetIdentity (TPtxGeomReal_AffineTransform *pIdentity)
	The identity transform.

Macro Definition Documentation

PDFTOOLBOX_CALL

#define PDFTOOLBOX_CALL

Function Documentation

PtxGeomReal_AffineTransform_Concatenate()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_Concatenate	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		const TPtxGeomReal_AffineTransform *	pOther )

Concatenate transform with other transform. Concatenating a transform with an other transform is equivalent to left-multiplying the transform's matrix with with the other transform's matrix.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	pOther	the transform to be concatenated to this transform

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState If the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)
• ePtx_Error_IllegalArgument If the pOther affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_AffineTransform_GetIdentity()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_GetIdentity

(

TPtxGeomReal_AffineTransform *

pIdentity

)

The identity transform.

Parameters

[out]

pIdentity

Retrieved value.

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage.

PtxGeomReal_AffineTransform_Invert()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_Invert

(

TPtxGeomReal_AffineTransform *

pAffineTransform

)

Invert the transform A transform usually maps from the transformed coordinate system to the untransformed coordinate system. Use this method to create the reverse transform.

Parameters

[in,out]

pAffineTransform

The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState If the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_AffineTransform_Rotate()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_Rotate	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		double	dAngle,
		const TPtxGeomReal_Point *	pCenter )

Rotate.

Rotations are produced by [cos(a) sin(a) -sin(a) cos(a) 0 0], which has the effect of rotating the coordinate system axes by an angle "a" in counterclockwise direction around the origin.

If the given pCenter is not NULL, then the rotation is performed around the given center point, which is equivalent to the following sequence:

• PtxGeomReal_AffineTransform_Translate to pCenter.
• PtxGeomReal_AffineTransform_Rotate by dAngle around the origin.
• PtxGeomReal_AffineTransform_Translate "back" to the original origin.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	dAngle	The angle of the rotation in degrees.
[in]	pCenter	The center of the rotation. If NULL then the origin (0/0) is taken as center.

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState If the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_AffineTransform_Scale()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_Scale	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		double	sx,
		double	sy )

Scale. Scaling is obtained by [sx 0 0 sy 0 0]. This scales the coordinates so that 1 unit in the horizontal and vertical dimensions of the new coordinate system is the same size as sx and sy units, respectively, in the previous coordinate system.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	sx	horizontal scale factor
[in]	sy	vertical scale factor

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState If the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_AffineTransform_Skew()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_Skew	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		double	dAlpha,
		double	dBeta )

Skew. Skew is specified by [1 tan a tan b 1 0 0], which skews the x axis by an angle a and the y axis by an angle b.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	dAlpha	angle a in degrees
[in]	dBeta	angle b in degrees

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState If the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)
• ePtx_Error_IllegalArgument if any of the given angles is too close to 90 + k*180 degrees for k = ..., -2, -1, 0, 1, 2, ...

PtxGeomReal_AffineTransform_TransformPoint()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_TransformPoint	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		const TPtxGeomReal_Point *	pOriginal,
		TPtxGeomReal_Point *	pPoint )

Transforms the given point.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	pOriginal	the point to be transformed
[out]	pPoint	the transformed point

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState If the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_AffineTransform_TransformQuadrilateral()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_TransformQuadrilateral	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		const TPtxGeomReal_Quadrilateral *	pOriginal,
		TPtxGeomReal_Quadrilateral *	pQuadrilateral )

Transform a given quadrilateral If the input quadrilateral is a parallelogram, then the output is also a parallelogram.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	pOriginal	the quadrilateral to be transformed
[out]	pQuadrilateral	the transformed quadrilateral. If the input is a parallelogram then the output is also a parallelogram.

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState if the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_AffineTransform_TransformRectangle()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_TransformRectangle	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		const TPtxGeomReal_Rectangle *	pOriginal,
		TPtxGeomReal_Quadrilateral *	pQuadrilateral )

Transform the given rectangle For a general affine transformation, the returned TPtxGeomReal_Quadrilateral is a parallelogram.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	pOriginal	the rectangle to be transformed
[out]	pQuadrilateral	the transformed rectangle. For a general affine transform this is a parallelogram.

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState if the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_AffineTransform_Translate()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_AffineTransform_Translate	(	TPtxGeomReal_AffineTransform *	pAffineTransform,
		double	tx,
		double	ty )

Translate. Translations are specified as [1 0 0 1 tx ty], where tx and ty are the distances to translate the origin of the coordinate system in the horizontal and vertical dimensions, respectively.

Parameters

[in,out]	pAffineTransform	The pointer to the struct of type TPtxGeomReal_AffineTransform to which this function acts on.
[in]	tx	horizontal translation
[in]	ty	vertical translation

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState If the affine transform is singular, e.g. default initialized. (Use PtxGeomReal_AffineTransform_GetIdentity as an initial value.)

PtxGeomReal_QuadrilateralList_Add()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_QuadrilateralList_Add	(	TPtxGeomReal_QuadrilateralList *	pQuadrilateralList,
		const TPtxGeomReal_Quadrilateral *	pQuadrilateral )

Add an element to the end of the list.

Parameters

[in,out]	pQuadrilateralList	Acts as a handle to the native object of type TPtxGeomReal_QuadrilateralList.
[in]	pQuadrilateral

Returns

May indicate an error in certain scenarios. For further information see the note section below.

Note

An error occurred when FALSE was returned and the error code returned by Ptx_GetLastError is different from ePtx_Error_Success. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState
• ePtx_Error_IllegalArgument
• ePtx_Error_UnsupportedOperation

PtxGeomReal_QuadrilateralList_Clear()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_QuadrilateralList_Clear

(

TPtxGeomReal_QuadrilateralList *

pQuadrilateralList

)

Clear list.

Parameters

[in,out]

pQuadrilateralList

Acts as a handle to the native object of type TPtxGeomReal_QuadrilateralList.

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState

PtxGeomReal_QuadrilateralList_Get()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_QuadrilateralList_Get	(	TPtxGeomReal_QuadrilateralList *	pQuadrilateralList,
		int	iIndex,
		TPtxGeomReal_Quadrilateral *	pQuadrilateral )

Returns the element at the specified position in the given list.

Parameters

[in,out]	pQuadrilateralList	Acts as a handle to the native object of type TPtxGeomReal_QuadrilateralList.
[in]	iIndex
[out]	pQuadrilateral

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState
• ePtx_Error_IllegalArgument
• ePtx_Error_UnsupportedOperation

PtxGeomReal_QuadrilateralList_GetCount()

PDFTOOLBOX_EXPORT int PDFTOOLBOX_CALL PtxGeomReal_QuadrilateralList_GetCount

(

TPtxGeomReal_QuadrilateralList *

pQuadrilateralList

)

Get the number of elements in the list.

Parameters

[in,out]

pQuadrilateralList

Acts as a handle to the native object of type TPtxGeomReal_QuadrilateralList.

Returns

May indicate an error in certain scenarios. For further information see the note section below.

Note

An error occurred when 0 was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState

PtxGeomReal_QuadrilateralList_New()

PDFTOOLBOX_EXPORT TPtxGeomReal_QuadrilateralList *PDFTOOLBOX_CALL PtxGeomReal_QuadrilateralList_New

(

void

)

Create an empty list of TPtxGeomReal_Quadrilaterals

Returns

Handle to the newly created native object.

NULL if there is an error.

Note

An error occurred when NULL was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage.

PtxGeomReal_QuadrilateralList_Remove()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_QuadrilateralList_Remove	(	TPtxGeomReal_QuadrilateralList *	pQuadrilateralList,
		int	iIndex )

Remove certain element from list.

Parameters

[in,out]	pQuadrilateralList	Acts as a handle to the native object of type TPtxGeomReal_QuadrilateralList.
[in]	iIndex

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState
• ePtx_Error_IllegalArgument
• ePtx_Error_UnsupportedOperation

PtxGeomReal_QuadrilateralList_Set()

PDFTOOLBOX_EXPORT BOOL PDFTOOLBOX_CALL PtxGeomReal_QuadrilateralList_Set	(	TPtxGeomReal_QuadrilateralList *	pQuadrilateralList,
		int	iIndex,
		const TPtxGeomReal_Quadrilateral *	pValue )

Update certain element in list.

Parameters

[in,out]	pQuadrilateralList	Acts as a handle to the native object of type TPtxGeomReal_QuadrilateralList.
[in]	iIndex
[in]	pValue

Returns

TRUE if the operation is successful; FALSE if there is an error.

Note

An error occurred when FALSE was returned. Retrieve specific error code by calling Ptx_GetLastError. Get the error message with Ptx_GetLastErrorMessage. Possible error codes:

• ePtx_Error_IllegalState
• ePtx_Error_IllegalArgument
• ePtx_Error_UnsupportedOperation