Geometry API

Geometries, paths, and transformations.

Blend2D offers various geometry structures and objects that can be used with either BLPath for path building or BLContext for rendering.

Classes

struct BLPointI

struct BLSizeI

struct BLBoxI

struct BLRectI

struct BLPoint

struct BLSize

struct BLBox

struct BLRect

struct BLLine

struct BLTriangle

struct BLRoundRect

struct BLCircle

struct BLEllipse

struct BLArc

struct BLMatrix2D

struct BLApproximationOptions

struct BLPathView

struct BLPathCore

struct BLStrokeOptionsCore

class BLStrokeOptions

class BLPath

struct BLPath::MoveTo

struct BLPath::LineTo

struct BLPath::QuadTo

struct BLPath::CubicTo

Enumerations

enum BLGeometryDirection : uint32_t

enum BLGeometryType : uint32_t

enum BLFillRule : uint32_t

enum BLHitTest : uint32_t

BLMatrix Constants

enum BLTransformType : uint32_t

enum BLTransformOp : uint32_t

BLPath - Constants

enum BLPathCmd : uint32_t

enum BLPathCmdExtra : uint32_t

enum BLPathFlags : uint32_t

enum BLPathReverseMode : uint32_t

enum BLStrokeJoin : uint32_t

enum BLStrokeCapPosition : uint32_t

enum BLStrokeCap : uint32_t

enum BLStrokeTransformOrder : uint32_t

enum BLFlattenMode : uint32_t

enum BLOffsetMode : uint32_t

BLPath - C API

typedef BLResult(* BLPathSinkFunc)(BLPathCore* path, const void* info, void* userData)

typedef BLResult(* BLPathStrokeSinkFunc)(BLPathCore* a, BLPathCore* b, BLPathCore* c, size_t inputStart, size_t inputEnd, void* userData)

BLResult blPathInit(BLPathCore* self)

BLResult blPathInitMove(BLPathCore* self, BLPathCore* other)

BLResult blPathInitWeak(BLPathCore* self, const BLPathCore* other)

BLResult blPathDestroy(BLPathCore* self)

BLResult blPathReset(BLPathCore* self)

size_t blPathGetSize(const BLPathCore* self)

size_t blPathGetCapacity(const BLPathCore* self)

const uint8_t* blPathGetCommandData(const BLPathCore* self)

const BLPoint* blPathGetVertexData(const BLPathCore* self)

BLResult blPathClear(BLPathCore* self)

BLResult blPathShrink(BLPathCore* self)

BLResult blPathReserve(BLPathCore* self, size_t n)

BLResult blPathModifyOp(BLPathCore* self, BLModifyOp op, size_t n, uint8_t** cmdDataOut, BLPoint** vtxDataOut)

BLResult blPathAssignMove(BLPathCore* self, BLPathCore* other)

BLResult blPathAssignWeak(BLPathCore* self, const BLPathCore* other)

BLResult blPathAssignDeep(BLPathCore* self, const BLPathCore* other)

BLResult blPathSetVertexAt(BLPathCore* self, size_t index, uint32_t cmd, double x, double y)

BLResult blPathMoveTo(BLPathCore* self, double x0, double y0)

BLResult blPathLineTo(BLPathCore* self, double x1, double y1)

BLResult blPathPolyTo(BLPathCore* self, const BLPoint* poly, size_t count)

BLResult blPathQuadTo(BLPathCore* self, double x1, double y1, double x2, double y2)

BLResult blPathConicTo(BLPathCore* self, double x1, double y1, double x2, double y2, double w)

BLResult blPathCubicTo(BLPathCore* self, double x1, double y1, double x2, double y2, double x3, double y3)

BLResult blPathSmoothQuadTo(BLPathCore* self, double x2, double y2)

BLResult blPathSmoothCubicTo(BLPathCore* self, double x2, double y2, double x3, double y3)

BLResult blPathArcTo(BLPathCore* self, double x, double y, double rx, double ry, double start, double sweep, bool forceMoveTo)

BLResult blPathArcQuadrantTo(BLPathCore* self, double x1, double y1, double x2, double y2)

BLResult blPathEllipticArcTo(BLPathCore* self, double rx, double ry, double xAxisRotation, bool largeArcFlag, bool sweepFlag, double x1, double y1)

BLResult blPathClose(BLPathCore* self)

BLResult blPathAddGeometry(BLPathCore* self, BLGeometryType geometryType, const void* geometryData, const BLMatrix2D* m, BLGeometryDirection dir)

BLResult blPathAddBoxI(BLPathCore* self, const BLBoxI* box, BLGeometryDirection dir)

BLResult blPathAddBoxD(BLPathCore* self, const BLBox* box, BLGeometryDirection dir)

BLResult blPathAddRectI(BLPathCore* self, const BLRectI* rect, BLGeometryDirection dir)

BLResult blPathAddRectD(BLPathCore* self, const BLRect* rect, BLGeometryDirection dir)

BLResult blPathAddPath(BLPathCore* self, const BLPathCore* other, const BLRange* range)

BLResult blPathAddTranslatedPath(BLPathCore* self, const BLPathCore* other, const BLRange* range, const BLPoint* p)

BLResult blPathAddTransformedPath(BLPathCore* self, const BLPathCore* other, const BLRange* range, const BLMatrix2D* m)

BLResult blPathAddReversedPath(BLPathCore* self, const BLPathCore* other, const BLRange* range, BLPathReverseMode reverseMode)

BLResult blPathAddStrokedPath(BLPathCore* self, const BLPathCore* other, const BLRange* range, const BLStrokeOptionsCore* options, const BLApproximationOptions* approx)

BLResult blPathRemoveRange(BLPathCore* self, const BLRange* range)

BLResult blPathTranslate(BLPathCore* self, const BLRange* range, const BLPoint* p)

BLResult blPathTransform(BLPathCore* self, const BLRange* range, const BLMatrix2D* m)

BLResult blPathFitTo(BLPathCore* self, const BLRange* range, const BLRect* rect, uint32_t fitFlags)

bool blPathEquals(const BLPathCore* a, const BLPathCore* b)

BLResult blPathGetInfoFlags(const BLPathCore* self, uint32_t* flagsOut)

BLResult blPathGetControlBox(const BLPathCore* self, BLBox* boxOut)

BLResult blPathGetBoundingBox(const BLPathCore* self, BLBox* boxOut)

BLResult blPathGetFigureRange(const BLPathCore* self, size_t index, BLRange* rangeOut)

BLResult blPathGetLastVertex(const BLPathCore* self, BLPoint* vtxOut)

BLResult blPathGetClosestVertex(const BLPathCore* self, const BLPoint* p, double maxDistance, size_t* indexOut, double* distanceOut)

BLHitTest blPathHitTest(const BLPathCore* self, const BLPoint* p, BLFillRule fillRule)

BLResult blStrokeOptionsInit(BLStrokeOptionsCore* self)

BLResult blStrokeOptionsInitMove(BLStrokeOptionsCore* self, BLStrokeOptionsCore* other)

BLResult blStrokeOptionsInitWeak(BLStrokeOptionsCore* self, const BLStrokeOptionsCore* other)

BLResult blStrokeOptionsDestroy(BLStrokeOptionsCore* self)

BLResult blStrokeOptionsReset(BLStrokeOptionsCore* self)

bool blStrokeOptionsEquals(const BLStrokeOptionsCore* a, const BLStrokeOptionsCore* b)

BLResult blStrokeOptionsAssignMove(BLStrokeOptionsCore* self, BLStrokeOptionsCore* other)

BLResult blStrokeOptionsAssignWeak(BLStrokeOptionsCore* self, const BLStrokeOptionsCore* other)

BLResult blPathStrokeToSink(const BLPathCore* self, const BLRange* range, const BLStrokeOptionsCore* strokeOptions, const BLApproximationOptions* approximationOptions, BLPathCore* a, BLPathCore* b, BLPathCore* c, BLPathStrokeSinkFunc sink, void* userData)

BLPath - Globals

2D path functionality is provided by BLPathCore in C API and wrapped by BLPath in C++ API.

const BLApproximationOptions blDefaultApproximationOptions

Global Specializations

template<>

constexpr BLPoint blAbs(const BLPoint& a)

template<>

constexpr BLPoint blMin(const BLPoint& a, const BLPoint& b)

template<>

constexpr BLPoint blMax(const BLPoint& a, const BLPoint& b)

template<>

constexpr BLSize blAbs(const BLSize& a)

template<>

constexpr BLSize blMin(const BLSize& a, const BLSize& b)

template<>

constexpr BLSize blMax(const BLSize& a, const BLSize& b)

static constexpr BLPoint blMin(const BLPoint& a, double b)

static constexpr BLPoint blMin(double a, const BLPoint& b)

static constexpr BLPoint blMax(const BLPoint& a, double b)

static constexpr BLPoint blMax(double a, const BLPoint& b)

static constexpr BLPoint blClamp(const BLPoint& a, double b, double c)

Overloaded Operators

static constexpr BLPointI operator-(const BLPointI& self)

static constexpr BLPointI operator+(const BLPointI& a, int b)

static constexpr BLPointI operator-(const BLPointI& a, int b)

static constexpr BLPointI operator*(const BLPointI& a, int b)

static constexpr BLPointI operator+(int a, const BLPointI& b)

static constexpr BLPointI operator-(int a, const BLPointI& b)

static constexpr BLPointI operator*(int a, const BLPointI& b)

static constexpr BLPointI operator+(const BLPointI& a, const BLPointI& b)

static constexpr BLPointI operator-(const BLPointI& a, const BLPointI& b)

static constexpr BLPointI operator*(const BLPointI& a, const BLPointI& b)

static BLPointI& operator+=(BLPointI& a, int b)

static BLPointI& operator-=(BLPointI& a, int b)

static BLPointI& operator*=(BLPointI& a, int b)

static BLPointI& operator/=(BLPointI& a, int b)

static BLPointI& operator+=(BLPointI& a, const BLPointI& b)

static BLPointI& operator-=(BLPointI& a, const BLPointI& b)

static BLPointI& operator*=(BLPointI& a, const BLPointI& b)

static BLPointI& operator/=(BLPointI& a, const BLPointI& b)

static constexpr BLPoint operator-(const BLPoint& a)

static constexpr BLPoint operator+(const BLPoint& a, double b)

static constexpr BLPoint operator-(const BLPoint& a, double b)

static constexpr BLPoint operator*(const BLPoint& a, double b)

static constexpr BLPoint operator/(const BLPoint& a, double b)

static constexpr BLPoint operator+(double a, const BLPoint& b)

static constexpr BLPoint operator-(double a, const BLPoint& b)

static constexpr BLPoint operator*(double a, const BLPoint& b)

static constexpr BLPoint operator/(double a, const BLPoint& b)

static constexpr BLPoint operator+(const BLPoint& a, const BLPoint& b)

static constexpr BLPoint operator-(const BLPoint& a, const BLPoint& b)

static constexpr BLPoint operator*(const BLPoint& a, const BLPoint& b)

static constexpr BLPoint operator/(const BLPoint& a, const BLPoint& b)

static BLPoint& operator+=(BLPoint& a, double b)

static BLPoint& operator-=(BLPoint& a, double b)

static BLPoint& operator*=(BLPoint& a, double b)

static BLPoint& operator/=(BLPoint& a, double b)

static BLPoint& operator+=(BLPoint& a, const BLPoint& b)

static BLPoint& operator-=(BLPoint& a, const BLPoint& b)

static BLPoint& operator*=(BLPoint& a, const BLPoint& b)

static BLPoint& operator/=(BLPoint& a, const BLPoint& b)

static constexpr BLBox operator+(double a, const BLBox& b)

static constexpr BLBox operator-(double a, const BLBox& b)

static constexpr BLBox operator*(double a, const BLBox& b)

static constexpr BLBox operator/(double a, const BLBox& b)

static constexpr BLBox operator+(const BLBox& a, double b)

static constexpr BLBox operator-(const BLBox& a, double b)

static constexpr BLBox operator*(const BLBox& a, double b)

static constexpr BLBox operator/(const BLBox& a, double b)

static constexpr BLBox operator+(const BLPoint& a, const BLBox& b)

static constexpr BLBox operator-(const BLPoint& a, const BLBox& b)

static constexpr BLBox operator*(const BLPoint& a, const BLBox& b)

static constexpr BLBox operator/(const BLPoint& a, const BLBox& b)

static constexpr BLBox operator+(const BLBox& a, const BLPoint& b)

static constexpr BLBox operator-(const BLBox& a, const BLPoint& b)

static constexpr BLBox operator*(const BLBox& a, const BLPoint& b)

static constexpr BLBox operator/(const BLBox& a, const BLPoint& b)

static BLBox& operator+=(BLBox& a, double b)

static BLBox& operator-=(BLBox& a, double b)

static BLBox& operator*=(BLBox& a, double b)

static BLBox& operator/=(BLBox& a, double b)

static BLBox& operator+=(BLBox& a, const BLPoint& b)

static BLBox& operator-=(BLBox& a, const BLPoint& b)

static BLBox& operator*=(BLBox& a, const BLPoint& b)

static BLBox& operator/=(BLBox& a, const BLPoint& b)

BLMatrix2D - C API

Functions that initialize and manipulate BLMatrix2D content.

BLResult blMatrix2DSetIdentity(BLMatrix2D* self)

BLResult blMatrix2DSetTranslation(BLMatrix2D* self, double x, double y)

BLResult blMatrix2DSetScaling(BLMatrix2D* self, double x, double y)

BLResult blMatrix2DSetSkewing(BLMatrix2D* self, double x, double y)

BLResult blMatrix2DSetRotation(BLMatrix2D* self, double angle, double cx, double cy)

BLResult blMatrix2DApplyOp(BLMatrix2D* self, BLTransformOp opType, const void* opData)

BLResult blMatrix2DInvert(BLMatrix2D* dst, const BLMatrix2D* src)

BLTransformType blMatrix2DGetType(const BLMatrix2D* self)

BLResult blMatrix2DMapPointDArray(const BLMatrix2D* self, BLPoint* dst, const BLPoint* src, size_t count)

Typedef Documentation

typedef BLResult(* BLPathSinkFunc)(BLPathCore* path, const void* info, void* userData)

Optional callback that can be used to consume a path data.

typedef BLResult(* BLPathStrokeSinkFunc)(BLPathCore* a, BLPathCore* b, BLPathCore* c, size_t inputStart, size_t inputEnd, void* userData)

This is a sink that is used by path offsetting. This sink consumes both a and b offsets of the path. The sink will be called for each figure and is responsible for joining these paths. If the paths are not closed then the sink must insert start cap, then join b, and then insert end cap.

The sink must also clean up the paths as this is not done by the offsetter. The reason is that in case the a path is the output path you can just keep it and insert b path into it (clearing only b path after each call).

Enumeration Type Documentation

BLGeometryDirection : uint32_tenum

Direction of a geometry used by geometric primitives and paths.

Constant	Description
BL_GEOMETRY_DIRECTION_NONE	No direction specified.
BL_GEOMETRY_DIRECTION_CW	Clockwise direction.
BL_GEOMETRY_DIRECTION_CCW	Counter-clockwise direction.

BLGeometryType : uint32_tenum

Geometry type.

Geometry describes a shape or path that can be either rendered or added to a BLPath container. Both BLPath and BLContext provide functionality to work with all geometry types. Please note that each type provided here requires to pass a matching struct or class to the function that consumes a geometryType and geometryData arguments.

Constant	Description
BL_GEOMETRY_TYPE_NONE	No geometry provided.
BL_GEOMETRY_TYPE_BOXI	BLBoxI struct.
BL_GEOMETRY_TYPE_BOXD	BLBox struct.
BL_GEOMETRY_TYPE_RECTI	BLRectI struct.
BL_GEOMETRY_TYPE_RECTD	BLRect struct.
BL_GEOMETRY_TYPE_CIRCLE	BLCircle struct.
BL_GEOMETRY_TYPE_ELLIPSE	BLEllipse struct.
BL_GEOMETRY_TYPE_ROUND_RECT	BLRoundRect struct.
BL_GEOMETRY_TYPE_ARC	BLArc struct.
BL_GEOMETRY_TYPE_CHORD	BLArc struct representing chord.
BL_GEOMETRY_TYPE_PIE	BLArc struct representing pie.
BL_GEOMETRY_TYPE_LINE	BLLine struct.
BL_GEOMETRY_TYPE_TRIANGLE	BLTriangle struct.
BL_GEOMETRY_TYPE_POLYLINEI	BLArrayView<BLPointI> representing a polyline.
BL_GEOMETRY_TYPE_POLYLINED	BLArrayView<BLPoint> representing a polyline.
BL_GEOMETRY_TYPE_POLYGONI	BLArrayView<BLPointI> representing a polygon.
BL_GEOMETRY_TYPE_POLYGOND	BLArrayView<BLPoint> representing a polygon.
BL_GEOMETRY_TYPE_ARRAY_VIEW_BOXI	BLArrayView<BLBoxI> struct.
BL_GEOMETRY_TYPE_ARRAY_VIEW_BOXD	BLArrayView<BLBox> struct.
BL_GEOMETRY_TYPE_ARRAY_VIEW_RECTI	BLArrayView<BLRectI> struct.
BL_GEOMETRY_TYPE_ARRAY_VIEW_RECTD	BLArrayView<BLRect> struct.
BL_GEOMETRY_TYPE_PATH	BLPath (or BLPathCore).
BL_GEOMETRY_TYPE_MAX_VALUE	Maximum value of BLGeometryType.

BLFillRule : uint32_tenum

Fill rule.

Constant	Description
BL_FILL_RULE_NON_ZERO	Non-zero fill-rule.
BL_FILL_RULE_EVEN_ODD	Even-odd fill-rule.
BL_FILL_RULE_MAX_VALUE	Maximum value of BLFillRule.

BLHitTest : uint32_tenum

Hit-test result.

Constant	Description
BL_HIT_TEST_IN	Fully in.
BL_HIT_TEST_PART	Partially in/out.
BL_HIT_TEST_OUT	Fully out.
BL_HIT_TEST_INVALID	Hit test failed (invalid argument, NaNs, etc).

BLTransformType : uint32_tenum

Transformation matrix type that can be obtained by calling BLMatrix2D::type().

Identity  Transl.  Scale     Swap    Affine
 [1  0]   [1  0]   [.  0]   [0  .]   [.  .]
 [0  1]   [0  1]   [0  .]   [.  0]   [.  .]
 [0  0]   [.  .]   [.  .]   [.  .]   [.  .]

Constant	Description
BL_TRANSFORM_TYPE_IDENTITY	Identity matrix.
BL_TRANSFORM_TYPE_TRANSLATE	Has translation part (the rest is like identity).
BL_TRANSFORM_TYPE_SCALE	Has translation and scaling parts.
BL_TRANSFORM_TYPE_SWAP	Has translation and scaling parts, however scaling swaps X/Y.
BL_TRANSFORM_TYPE_AFFINE	Generic affine matrix.
BL_TRANSFORM_TYPE_INVALID	Invalid/degenerate matrix not useful for transformations.
BL_TRANSFORM_TYPE_MAX_VALUE	Maximum value of BLTransformType.

BLTransformOp : uint32_tenum

Transformation matrix operation type.

Constant	Description
BL_TRANSFORM_OP_RESET	Reset matrix to identity (argument ignored, should be nullptr).
BL_TRANSFORM_OP_ASSIGN	Assign (copy) the other matrix.
BL_TRANSFORM_OP_TRANSLATE	Translate the matrix by [x, y].
BL_TRANSFORM_OP_SCALE	Scale the matrix by [x, y].
BL_TRANSFORM_OP_SKEW	Skew the matrix by [x, y].
BL_TRANSFORM_OP_ROTATE	Rotate the matrix by the given angle about [0, 0].
BL_TRANSFORM_OP_ROTATE_PT	Rotate the matrix by the given angle about [x, y].
BL_TRANSFORM_OP_TRANSFORM	Transform this matrix by other BLMatrix2D.
BL_TRANSFORM_OP_POST_TRANSLATE	Post-translate the matrix by [x, y].
BL_TRANSFORM_OP_POST_SCALE	Post-scale the matrix by [x, y].
BL_TRANSFORM_OP_POST_SKEW	Post-skew the matrix by [x, y].
BL_TRANSFORM_OP_POST_ROTATE	Post-rotate the matrix about [0, 0].
BL_TRANSFORM_OP_POST_ROTATE_PT	Post-rotate the matrix about a reference BLPoint.
BL_TRANSFORM_OP_POST_TRANSFORM	Post-transform this matrix by other BLMatrix2D.
BL_TRANSFORM_OP_MAX_VALUE	Maximum value of BLTransformOp.

BLPathCmd : uint32_tenum

Path command.

Constant	Description
BL_PATH_CMD_MOVE	Move-to command (starts a new figure).
BL_PATH_CMD_ON	On-path command (interpreted as line-to or the end of a curve).
BL_PATH_CMD_QUAD	Quad-to control point.
BL_PATH_CMD_CONIC	Conic-to control point.
BL_PATH_CMD_CUBIC	Cubic-to control point (always used as a pair of commands).
BL_PATH_CMD_CLOSE	Close path.
BL_PATH_CMD_WEIGHT	Conic weight. Note This is not a point. This is a pair of values from which only the first (x) is used to represent weight as used by conic curve. The other value (y) is always set to NaN by Blend2D, but can be arbitrary as it has no meaning.
BL_PATH_CMD_MAX_VALUE	Maximum value of BLPathCmd.

BLPathCmdExtra : uint32_tenum

Path command (never stored in path).

Constant	Description
BL_PATH_CMD_PRESERVE	Used by BLPath::setVertexAt to preserve the current command value.

BLPathFlags : uint32_tenum

Path flags.

Constant	Description
BL_PATH_NO_FLAGS	No flags.
BL_PATH_FLAG_EMPTY	Path is empty (no commands or close commands only).
BL_PATH_FLAG_MULTIPLE	Path contains multiple figures.
BL_PATH_FLAG_QUADS	Path contains one or more quad curves.
BL_PATH_FLAG_CONICS	Path contains one or more conic curves.
BL_PATH_FLAG_CUBICS	Path contains one or more cubic curves.
BL_PATH_FLAG_INVALID	Path is invalid.
BL_PATH_FLAG_DIRTY	Flags are dirty (not reflecting the current status).

BLPathReverseMode : uint32_tenum

Path reversal mode.

Constant	Description
BL_PATH_REVERSE_MODE_COMPLETE	Reverse each figure and their order as well (default).
BL_PATH_REVERSE_MODE_SEPARATE	Reverse each figure separately (keeps their order).
BL_PATH_REVERSE_MODE_MAX_VALUE	Maximum value of BLPathReverseMode.

BLStrokeJoin : uint32_tenum

Stroke join type.

Constant	Description
BL_STROKE_JOIN_MITER_CLIP	Miter-join possibly clipped at miterLimit [default].
BL_STROKE_JOIN_MITER_BEVEL	Miter-join or bevel-join depending on miterLimit condition.
BL_STROKE_JOIN_MITER_ROUND	Miter-join or round-join depending on miterLimit condition.
BL_STROKE_JOIN_BEVEL	Bevel-join.
BL_STROKE_JOIN_ROUND	Round-join.
BL_STROKE_JOIN_MAX_VALUE	Maximum value of BLStrokeJoin.

BLStrokeCapPosition : uint32_tenum

Position of a stroke-cap.

Constant	Description
BL_STROKE_CAP_POSITION_START	Start of the path.
BL_STROKE_CAP_POSITION_END	End of the path.
BL_STROKE_CAP_POSITION_MAX_VALUE	Maximum value of BLStrokeCapPosition.

BLStrokeCap : uint32_tenum

A presentation attribute defining the shape to be used at the end of open sub-paths.

Constant	Description
BL_STROKE_CAP_BUTT	Butt cap [default].
BL_STROKE_CAP_SQUARE	Square cap.
BL_STROKE_CAP_ROUND	Round cap.
BL_STROKE_CAP_ROUND_REV	Round cap reversed.
BL_STROKE_CAP_TRIANGLE	Triangle cap.
BL_STROKE_CAP_TRIANGLE_REV	Triangle cap reversed.
BL_STROKE_CAP_MAX_VALUE	Maximum value of BLStrokeCap.

BLStrokeTransformOrder : uint32_tenum

Stroke transform order.

Constant	Description
BL_STROKE_TRANSFORM_ORDER_AFTER	Transform after stroke => Transform(Stroke(Input)) [default].
BL_STROKE_TRANSFORM_ORDER_BEFORE	Transform before stroke => Stroke(Transform(Input)).
BL_STROKE_TRANSFORM_ORDER_MAX_VALUE	Maximum value of BLStrokeTransformOrder.

BLFlattenMode : uint32_tenum

Mode that specifies how curves are approximated to line segments.

Constant	Description
BL_FLATTEN_MODE_DEFAULT	Use default mode (decided by Blend2D).
BL_FLATTEN_MODE_RECURSIVE	Recursive subdivision flattening.
BL_FLATTEN_MODE_MAX_VALUE	Maximum value of BLFlattenMode.

BLOffsetMode : uint32_tenum

Mode that specifies how to construct offset curves.

Constant	Description
BL_OFFSET_MODE_DEFAULT	Use default mode (decided by Blend2D).
BL_OFFSET_MODE_ITERATIVE	Iterative offset construction.
BL_OFFSET_MODE_MAX_VALUE	Maximum value of BLOffsetMode.

Variable Documentation

const BLApproximationOptions blDefaultApproximationOptionsextern

Default approximation options used by Blend2D.