The transformation of a rectangle into a polygon, by using angle parameters from GeoStat. More...

#include <svdtrans.hxx>

Collaboration diagram for GeoStat:

Public Member Functions
	GeoStat ()

void	RecalcSinCos ()

void	RecalcTan ()

Public Attributes
Degree100	m_nRotationAngle

Degree100	m_nShearAngle

double	mfTanShearAngle

double	mfSinRotationAngle

double	mfCosRotationAngle

Detailed Description

The transformation of a rectangle into a polygon, by using angle parameters from GeoStat.

---------— The point of reference is always the Point 0, meaning /1 2/ the upper left corner of the initial rectangle. / / When calculating the polygon, the order is first / / shear and then the rotation. / / / / \ / / | A) Initial rectangle aRect B) After applying Shear /0 3/ Rot| +---------------—+ -----------------— ---------------— |0 1| \0 1\ C) After applying Rotate | | \ \ | | | \ \ |3 2| | \3 2\ +---------------—+ | -----------------— |Shr

When converting the polygon back into a rect, the order is necessarily the other way around:

Calculating the rotation angle: angle of the line 0-1 in figure C) to the horizontal
Turning the sheared rect back (we get figure B)
Determining the width of the rect = length of the line 0-1 in figure B)
Determining the height of the rect = vertical distance between the points 0 and 3 of figure B)
Determining the shear angle from the line 0-3 to the perpendicular line.

We need to keep in mind that the polygon can be mirrored when it was transformed in the meantime (e.g. mirror or resize with negative factor). In that case, we first need to normalize, by swapping points (0 with 3 and 1 with 2), so that it has the right orientation.

Note: a positive shear angle means a shear with a positive visible curvature on the screen. Mathematically, that would be a negative curvature, as the Y axis runs from top to bottom on the screen. Rotation angle: positive means a visible left rotation.

Definition at line 201 of file svdtrans.hxx.

Constructor & Destructor Documentation

◆ GeoStat()

GeoStat::GeoStat ( )

inline

Definition at line 209 of file svdtrans.hxx.

Member Function Documentation

◆ RecalcSinCos()

void GeoStat::RecalcSinCos ( )

Definition at line 444 of file svdtrans.cxx.

References a, m_nRotationAngle, mfCosRotationAngle, mfSinRotationAngle, and toRadians().

Referenced by SdrGrafObj::DoConvertToPolyObj(), SdrEditView::DoImportMarkedMtf(), SdrPathObj::ImpForceLineAngle(), SdrTextObj::NbcMirror(), SdrTextObj::NbcResize(), SdrObjCustomShape::NbcRotate(), SdrTextObj::NbcRotate(), svx::polygonToRectangle(), SdrMeasureObj::TakeUnrotatedSnapRect(), SdrObjCustomShape::TRSetBaseGeometry(), SdrPathObj::TRSetBaseGeometry(), and SdrTextObj::TRSetBaseGeometry().

◆ RecalcTan()

void GeoStat::RecalcTan ( )

Definition at line 456 of file svdtrans.cxx.

References a, m_nShearAngle, mfTanShearAngle, and toRadians().

Referenced by SdrGrafObj::DoConvertToPolyObj(), SdrEditView::DoImportMarkedMtf(), SdrPathObj::ImpForceLineAngle(), SdrTextObj::NbcMirror(), SdrTextObj::NbcResize(), svx::polygonToRectangle(), SdrObjCustomShape::TRSetBaseGeometry(), SdrPathObj::TRSetBaseGeometry(), and SdrTextObj::TRSetBaseGeometry().

Member Data Documentation

◆ m_nRotationAngle

Degree100 GeoStat::m_nRotationAngle

Definition at line 203 of file svdtrans.hxx.

◆ m_nShearAngle

Degree100 GeoStat::m_nShearAngle

Definition at line 204 of file svdtrans.hxx.

Referenced by SdrCircObj::AddToHdlList(), SdrRectObj::AddToHdlList(), SdrTextObj::AddToHdlList(), SdrCircObj::applySpecialDrag(), SdrTextObj::applySpecialDrag(), sdr::contact::ViewContactOfSdrObjCustomShape::createViewIndependentPrimitive2DSequence(), SdrGrafObj::DoConvertToPolyObj(), SdrEditView::DoImportMarkedMtf(), SdrObjCustomShape::DragResizeCustomShape(), SvxGrafAttrHelper::ExecuteGrafAttr(), SdrRectObj::GetCornerGluePoint(), sdr::contact::ViewContactOfSdrObjCustomShape::getCorrectedTextBoundRect(), EnhancedCustomShape2d::GetHandlePosition(), SvxIMapInfo::GetHitIMapObject(), SdrTextObj::GetShearAngle(), SdrTextObj::GetSnapPoint(), SdrObjCustomShape::GetVertexGluePoint(), SdrRectObj::GetVertexGluePoint(), SdrRectObj::ImpCalcXPoly(), SdrCircObj::ImpCalcXPolyCirc(), SdrObjCustomShape::ImpCheckCustomGluePointsAreAdded(), SdrTextObj::ImpCheckShear(), SdrTextObj::ImpDragCalcRect(), SdrPathObj::ImpForceLineAngle(), SdrCircObj::NbcMirror(), SdrTextObj::NbcMirror(), SdrCircObj::NbcResize(), SdrTextObj::NbcResize(), SdrUnoObj::NbcResize(), SdrCircObj::NbcSetSnapRect(), SdrTextObj::NbcSetSnapRect(), SdrCircObj::PaintNeedsXPolyCirc(), SdrView::PickAnything(), svx::polygonToRectangle(), SdrRectObj::RecalcSnapRect(), SdrTextObj::RecalcSnapRect(), RecalcTan(), Rect2Poly(), EnhancedCustomShape2d::SetHandleControllerPosition(), SdrCircObj::TakeObjNamePlural(), SdrRectObj::TakeObjNamePlural(), SdrCircObj::TakeObjNameSingul(), SdrRectObj::TakeObjNameSingul(), SdrCircObj::TakeUnrotatedSnapRect(), SdrRectObj::TakeUnrotatedSnapRect(), SdrTextObj::TakeXorPoly(), SdrObjCustomShape::TRGetBaseGeometry(), SdrPathObj::TRGetBaseGeometry(), SdrTextObj::TRGetBaseGeometry(), SdrObjCustomShape::TRSetBaseGeometry(), SdrPathObj::TRSetBaseGeometry(), and SdrTextObj::TRSetBaseGeometry().

◆ mfCosRotationAngle

double GeoStat::mfCosRotationAngle

Definition at line 207 of file svdtrans.hxx.

◆ mfSinRotationAngle

double GeoStat::mfSinRotationAngle

Definition at line 206 of file svdtrans.hxx.

◆ mfTanShearAngle

double GeoStat::mfTanShearAngle

Definition at line 205 of file svdtrans.hxx.

The documentation for this class was generated from the following files:

Public Member Functions

Public Attributes