CartoType C++ API 8.8-7-gb35e4dc71
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CartoTypeCore::WritableContourView Class Reference

#include <cartotype_path.h>

Inheritance diagram for CartoTypeCore::WritableContourView:
CartoTypeCore::MWritableContour CartoTypeCore::MContour CartoTypeCore::MPath

Public Member Functions

 WritableContourView (MWritableContour &aWritableContour)
 
 WritableContourView (CartoTypeCore::Point *aPoint, size_t aPoints, bool aClosed)
 
ContourView ContourByIndex (size_t) const override
 
bool MayHaveCurves () const override
 
size_t Points () const override
 
OutlinePoint Point (size_t aIndex) const override
 
bool Closed () const override
 
void SetPoint (size_t aIndex, const OutlinePoint &aPoint) override
 
void ReduceSizeTo (size_t aPoints) override
 
void SetSize (size_t aPoints) override
 
void SetClosed (bool aClosed) override
 
void AppendPoint (const OutlinePoint &aPoint) override
 
OutlinePoint * OutlinePointData () override
 
CartoTypeCore::Point * PointData () override
 
- Public Member Functions inherited from CartoTypeCore::MWritableContour
MWritableContour & operator= (const MContour &aContour)
 
virtual void SetPoint (size_t aIndex, const OutlinePoint &aPoint)=0
 
virtual void ReduceSizeTo (size_t aPoints)=0
 
virtual void SetSize (size_t aPoints)=0
 
virtual void SetClosed (bool aClosed)=0
 
virtual void AppendPoint (const OutlinePoint &aPoint)=0
 
virtual OutlinePoint * OutlinePointData ()=0
 
virtual CartoTypeCore::Point * PointData ()=0
 
void Offset (int32_t aDx, int32_t aDy)
 
void AppendContour (const ContourView &aContour)
 
void SetLastPoint (const OutlinePoint &aPoint)
 
void Simplify (double aResolutionArea)
 
void AppendCircularArc (const CartoTypeCore::Point &aCenter, const CartoTypeCore::Point &aStart, const CartoTypeCore::Point &aEnd, EllipseAngleType aAngleType=EllipseAngleType::Shortest, bool aAppendStart=false)
 
void AppendHalfCircle (const CartoTypeCore::Point &aCenter, const CartoTypeCore::Point &aStart, const CartoTypeCore::Point &aEnd, EllipseAngleType aAngleType=EllipseAngleType::Shortest, bool aAppendStart=false)
 
void AppendHalfCircle (double aCx, double aCy, double aSx, double aSy, double aEx, double aEy, double aRadius, bool aAppendStart, bool aIsExactHalfCircle, bool aClockwise)
 
void AppendQuadrant (double aCx, double aCy, double aSx, double aSy, double aEx, double aEy, double aRadius, bool aAppendStart, bool aIsExactQuadrant, bool aClockwise)
 
- Public Member Functions inherited from CartoTypeCore::MContour
virtual size_t Points () const =0
 
virtual OutlinePoint Point (size_t aIndex) const =0
 
virtual bool Closed () const =0
 
 operator ContourView () const
 
size_t Contours () const
 
OutlinePoint LastPoint () const
 
OutlinePoint FractionalPoint (double aIndex) const
 
bool IsGridOrientedRectangle (Rect *aRect=nullptr) const
 
bool Anticlockwise () const
 
PolygonOrientation Orientation () const
 
bool Contains (double aX, double aY) const
 
bool Contains (const CartoTypeCore::Point &aPoint) const
 
Outline ClippedContour (const Rect &aClip) const
 
void AppendClippedContour (Outline &aDest, const Rect &aClip) const
 
size_t AppendSplitContour (Outline &aDest, const PointFP &aLineStart, const PointFP &aLineVector)
 
Contour TruncatedContour (double aStart, double aEnd) const
 
Contour SubContourBetweenFractionalPoints (double aStartIndex, double aEndIndex) const
 
Contour SubContourBetweenNearestPoints (const PointFP *aStartPoint, const PointFP *aEndPoint) const
 
Contour CentralPath (std::shared_ptr< CEngine > aEngine, const Rect &aClip, bool aFractionalPixels, Line &aFallbackLine, bool aFallbackMustBeHorizontal) const
 
Contour Smooth (double aRadius) const
 
Contour ConcaveHull (double aMaxEdgeLength, PolygonOrientation aAssumedOrientation=PolygonOrientation::None) const
 
bool MayIntersect (const Rect &aRect) const
 
bool Intersects (const Rect &aRect) const
 
PathIntersectionType IntersectionType (const MContour &aOther, double *aDistance=nullptr, PointFP *aNearest1=nullptr, PointFP *aNearest2=nullptr) const
 
PathIntersectionInfo IntersectionInfo (const MContour &aOther) const
 
double DistanceFrom (const MContour &aOther, PointFP *aNearest1=nullptr, PointFP *aNearest2=nullptr, PathIntersectionType *aType=nullptr) const
 
double DistanceFromPoint (const PointFP &aPoint, PointFP *aNearest=nullptr, double *aNearestLength=nullptr, bool *aLeft=nullptr, size_t *aLineIndex=nullptr, double *aFractionalLineIndex=nullptr, bool aTreatAsOpen=false) const
 
PointFP PointAtLength (double aLength, double aOffset=0, int32_t *aLineIndex=nullptr) const
 
CartoTypeCore::Point Orientation (const CartoTypeCore::Point &aCenter) const
 
void GetPrincipalAxis (PointFP &aCenter, PointFP &aVector) const
 
void Write (OutputStream &aOutput) const
 
void GetAngles (double aDistance, double &aStartAngle, double &aEndAngle)
 
- Public Member Functions inherited from CartoTypeCore::MPath
virtual ~MPath ()
 
virtual size_t Contours () const =0
 
virtual ContourView ContourByIndex (size_t aIndex) const =0
 
virtual bool MayHaveCurves () const =0
 
template<class MPathTraverser >
void Traverse (MPathTraverser &aTraverser, const Rect &aClip) const
 
template<class MPathTraverser >
void Traverse (MPathTraverser &aTraverser, const Rect *aClip=nullptr) const
 
bool operator== (const MPath &aOther) const
 
Rect CBox () const
 
bool CBoxBiggerThan (int32_t aSize) const
 
bool IsContainedIn (const Rect &aRect) const
 
bool Contains (double aX, double aY) const
 
bool Contains (const Point &aPoint) const
 
bool Contains (const PointFP &aPoint) const
 
bool MayIntersect (const Rect &aRect) const
 
bool MayIntersect (const Rect &aRect, int32_t aBorder) const
 
bool Intersects (const Rect &aRect) const
 
bool Intersects (const MPath &aPath, const Rect *aBounds=nullptr) const
 
int32_t MaxDistanceFromOrigin () const
 
PathIntersectionType IntersectionType (const MPath &aOther, double *aDistance=nullptr, PointFP *aNearest1=nullptr, PointFP *aNearest2=nullptr) const
 
PathIntersectionInfo IntersectionInfo (const MPath &aOther) const
 
double DistanceFrom (const MPath &aOther, PointFP *aNearest1=nullptr, PointFP *aNearest2=nullptr, PathIntersectionType *aType=nullptr) const
 
double DistanceFromPoint (const PointFP &aPoint, PointFP *aNearest=nullptr, size_t *aContourIndex=nullptr, size_t *aLineIndex=nullptr, double *aFractionaLineIndex=nullptr, bool aTreatAsOpen=false) const
 
bool IsClippingNeeded (const Rect &aClip) const
 
Outline Copy () const
 
Outline ClippedPath (const Rect &aClip) const
 
Outline ClippedPath (const MPath &aClip) const
 
Outline ClippedPath (const ClipRegion &aClip) const
 
Outline Clip (ClipOperation aClipOperation, const MPath &aClip) const
 
Outline Envelope (double aOffset) const
 
Outline ConcaveHull (double aMaxEdgeLength, PolygonOrientation aAssumedOrientation=PolygonOrientation::None) const
 
bool IsSmoothingNeeded () const
 
Outline SmoothPath () const
 
Outline FlatPath (double aMaxDistance) const
 
Outline TruncatedPath (double aStart, double aEnd) const
 
Outline OffsetPath (double aOffset) const
 
Outline TransformedPath (const AffineTransform &aTransform) const
 
Outline TransformedPath (DrawResult &aError, MPointTransformer &aTransformer, int32_t aFractionalBits) const
 
Outline Interpolate (int32_t aGranularity) const
 
std::array< Line, 3 > HorizontalPaths (GraphicsContext *aGc, int32_t aPathLength, int32_t aLabelAscent, int32_t aLabelDescent, const PointFP &aUpVector, const Rect *aBounds, const Rect *aClip) const
 
PointFP CenterOfGravity () const
 
double Length () const
 
double Area () const
 
PointFP PointAtLength (double aPos) const
 
std::pair< Point, bool > End () const
 
void Write (OutputStream &aOutput) const
 
void WriteAsXml (OutputStream &aOutput) const
 
bool IsEmpty () const
 
bool IsPoint () const
 
bool IsGridOrientedRectangle (Rect *aRect=nullptr) const
 
void GetSphericalAreaAndLength (const Projection &aProjection, double *aArea, double *aLength) const
 
CartoTypeCore::ClipType ClipType (const Rect &aRect) const
 
bool HasCurves () const
 
size_t PointCount () const
 
ConstIter begin () const
 
ConstIter end () const
 

Detailed Description

A writable contour view returned by MapObject::WritableContour. It forwards MWritableContour functions either to an external interface or an owned object. The latter option makes it possible for small objects holding a single point to return a writable contour object, in which case the point is changeable but the number of points is not, nor the closed status.

Constructor & Destructor Documentation

◆ WritableContourView() [1/2]

CartoTypeCore::WritableContourView::WritableContourView ( MWritableContour &  aWritableContour)
inline

Creates a WritableContourView from an MWritableContour.

◆ WritableContourView() [2/2]

CartoTypeCore::WritableContourView::WritableContourView ( CartoTypeCore::Point *  aPoint,
size_t  aPoints,
bool  aClosed 
)
inline

Creates a WritableContourView from a sequence of points.

Member Function Documentation

◆ AppendPoint()

void CartoTypeCore::WritableContourView::AppendPoint ( const OutlinePoint &  aPoint)
inlineoverridevirtual

Appends a point.

Implements CartoTypeCore::MWritableContour.

◆ Closed()

bool CartoTypeCore::WritableContourView::Closed ( ) const
inlineoverridevirtual

Returns true if this is a closed contour.

Implements CartoTypeCore::MContour.

◆ ContourByIndex()

ContourView CartoTypeCore::WritableContourView::ContourByIndex ( size_t  aIndex) const
inlineoverridevirtual

Returns the contour indexed by aIndex.

Implements CartoTypeCore::MPath.

◆ MayHaveCurves()

bool CartoTypeCore::WritableContourView::MayHaveCurves ( ) const
inlineoverridevirtual

Returns true if the path may have off-curve points.

Implements CartoTypeCore::MPath.

◆ OutlinePointData()

OutlinePoint * CartoTypeCore::WritableContourView::OutlinePointData ( )
inlineoverridevirtual

Returns a writable pointer to OutlinePoint data if possible.

Implements CartoTypeCore::MWritableContour.

◆ Point()

OutlinePoint CartoTypeCore::WritableContourView::Point ( size_t  aIndex) const
inlineoverridevirtual

Returns a point selected by its index.

Implements CartoTypeCore::MContour.

◆ PointData()

CartoTypeCore::Point * CartoTypeCore::WritableContourView::PointData ( )
inlineoverridevirtual

Returns a writable pointer to Point data if possible.

Implements CartoTypeCore::MWritableContour.

◆ Points()

size_t CartoTypeCore::WritableContourView::Points ( ) const
inlineoverridevirtual

Returns the number of points in the contour.

Implements CartoTypeCore::MContour.

◆ ReduceSizeTo()

void CartoTypeCore::WritableContourView::ReduceSizeTo ( size_t  aPoints)
inlineoverridevirtual

Reduces the number of points to aPoints. The address of the points must not change.

Implements CartoTypeCore::MWritableContour.

◆ SetClosed()

void CartoTypeCore::WritableContourView::SetClosed ( bool  aClosed)
inlineoverridevirtual

Sets this contour's closed attribute. Does nothing if that is not possible.

Implements CartoTypeCore::MWritableContour.

◆ SetPoint()

void CartoTypeCore::WritableContourView::SetPoint ( size_t  aIndex,
const OutlinePoint &  aPoint 
)
inlineoverridevirtual

Sets a point.

Implements CartoTypeCore::MWritableContour.

◆ SetSize()

void CartoTypeCore::WritableContourView::SetSize ( size_t  aPoints)
inlineoverridevirtual

Sets the number of points to aPoints. The address of the points may change.

Implements CartoTypeCore::MWritableContour.

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