QPolygonF ¶

QPolygonF class provides a vector of points using floating point precision. 更多 …

概要 ¶

函数 ¶

def __add__ (l)
def __eq__ (v)
def __iadd__ (t)
def __iadd__ (t)
def __lshift__ (t)
def __mul__ (, m)
def __mul__ (, m)
def __ne__ (v)
def append (l)
def append (t)
def append (t)
def at (i)
def back ()
def boundingRect ()
def capacity ()
def clear ()
def constData ()
def constFirst ()
def constLast ()
def contains (t)
def containsPoint (pt, fillRule)
def count ()
def count (t)
def data ()
def empty ()
def endsWith (t)
def fill (t[, size=-1])
def first ()
def front ()
def indexOf (t[, from=0])
def insert (i, n, t)
def insert (i, t)
def insert (i, t)
def intersected (r)
def intersects (r)
def isClosed ()
def isEmpty ()
def isSharedWith (other)
def last ()
def lastIndexOf (t[, from=-1])
def length ()
def mid (pos[, len=-1])
def move (from, to)
def operator[] (i)
def pop_back ()
def pop_front ()
def prepend (t)
def prepend (t)
def push_back (t)
def push_back (t)
def push_front (t)
def push_front (t)
def remove (i)
def remove (i, n)
def removeAll (t)
def removeAt (i)
def removeFirst ()
def removeLast ()
def removeOne (t)
def replace (i, t)
def reserve (size)
def resize (size)
def setSharable (sharable)
def shrink_to_fit ()
def size ()
def squeeze ()
def startsWith (t)
def subtracted (r)
def swap (other)
def swapItemsAt (i, j)
def takeAt (i)
def takeFirst ()
def takeLast ()
def toList ()
def toPolygon ()
def translate (dx, dy)
def translate (offset)
def translated (dx, dy)
def translated (offset)
def united (r)
def value (i)
def value (i, defaultValue)

静态函数 ¶

def fromList (list)

详细描述 ¶

A QPolygonF 是 QVector < QPointF >. The easiest way to add points to a QPolygonF is to use its streaming operator, as illustrated below:
polygon = QPolygonF()
polygon << QPointF(10.4, 20.5) << QPointF(20.2, 30.2)
											
In addition to the functions provided by QVector , QPolygonF provides the boundingRect() and translate() functions for geometry operations. Use the map() function for more general transformations of QPolygonFs.

QPolygonF also provides the isClosed() function to determine whether a polygon’s start and end points are the same, and the toPolygon() function returning an integer precision copy of this polygon.

QPolygonF class is 隐式共享 .

另请参阅

QVector QPolygon QLineF

class QPolygonF ¶

QPolygonF(v)

QPolygonF(a)

QPolygonF(a)

QPolygonF(r)

QPolygonF(v)

QPolygonF(size)

param size

int

param a

QPolygon

param r

QRectF

param v

QVector

Constructs a polygon with no points.

另请参阅

isEmpty()

Constructs a polygon of the given size . Creates an empty polygon if size == 0.

另请参阅

isEmpty()

PySide2.QtGui.QPolygonF. append ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. append ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. append ( l ) ¶

参数: l –

PySide2.QtGui.QPolygonF. at ( i ) ¶

参数: i – int
返回类型: QPointF

PySide2.QtGui.QPolygonF. back ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. boundingRect ( ) ¶

返回类型: QRectF

Returns the bounding rectangle of the polygon, or QRectF (0,0,0,0) if the polygon is empty.

另请参阅

isEmpty()

PySide2.QtGui.QPolygonF. capacity ( ) ¶

返回类型: int

PySide2.QtGui.QPolygonF. clear ( ) ¶

PySide2.QtGui.QPolygonF. constData ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. constFirst ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. constLast ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. contains ( t ) ¶

参数: t – QPointF
返回类型: bool

PySide2.QtGui.QPolygonF. containsPoint ( pt , fillRule ) ¶

参数

pt – QPointF
fillRule – FillRule

返回类型

bool

返回 true 若给定 point is inside the polygon according to the specified fillRule ；否则返回 false .

PySide2.QtGui.QPolygonF. count ( ) ¶

返回类型: int

PySide2.QtGui.QPolygonF. count ( t ) ¶

参数: t – QPointF
返回类型: int

PySide2.QtGui.QPolygonF. data ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. empty ( ) ¶

返回类型: bool

PySide2.QtGui.QPolygonF. endsWith ( t ) ¶

参数: t – QPointF
返回类型: bool

PySide2.QtGui.QPolygonF. fill ( t [ , size=-1 ] ) ¶

参数

t – QPointF
size – int

返回类型

PySide2.QtGui.QPolygonF. first ( ) ¶

返回类型: QPointF

static PySide2.QtGui.QPolygonF. fromList ( list ) ¶

参数: list –
返回类型

PySide2.QtGui.QPolygonF. front ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. indexOf ( t [ , from=0 ] ) ¶

参数

t – QPointF
from – int

返回类型

int

PySide2.QtGui.QPolygonF. insert ( i , t ) ¶

参数

i – int
t – QPointF

PySide2.QtGui.QPolygonF. insert ( i , t ) ¶

参数

i – int
t – QPointF

PySide2.QtGui.QPolygonF. insert ( i , n , t ) ¶

参数

i – int
n – int
t – QPointF

PySide2.QtGui.QPolygonF. intersected ( r ) ¶

参数: r – QPolygonF
返回类型: QPolygonF

Returns a polygon which is the intersection of this polygon and r .

Set operations on polygons will treat the polygons as areas. Non-closed polygons will be treated as implicitly closed.

另请参阅

intersects()

PySide2.QtGui.QPolygonF. intersects ( r ) ¶

参数: r – QPolygonF
返回类型: bool

返回 true if the current polygon intersects at any point the given polygon p . Also returns true if the current polygon contains or is contained by any part of p .

Set operations on polygons will treat the polygons as areas. Non-closed polygons will be treated as implicitly closed.

另请参阅

intersected()

PySide2.QtGui.QPolygonF. isClosed ( ) ¶

返回类型: bool

返回 true if the polygon is closed; otherwise returns false .

A polygon is said to be closed if its start point and end point are equal.

另请参阅

first() last()

PySide2.QtGui.QPolygonF. isEmpty ( ) ¶

返回类型: bool

PySide2.QtGui.QPolygonF. isSharedWith ( other ) ¶

参数: other –
返回类型: bool

PySide2.QtGui.QPolygonF. last ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. lastIndexOf ( t [ , from=-1 ] ) ¶

参数

t – QPointF
from – int

返回类型

int

PySide2.QtGui.QPolygonF. length ( ) ¶

返回类型: int

PySide2.QtGui.QPolygonF. mid ( pos [ , len=-1 ] ) ¶

参数

pos – int
len – int

返回类型

PySide2.QtGui.QPolygonF. move ( from , to ) ¶

参数

from – int
to – int

PySide2.QtGui.QPolygonF. __ne__ ( v ) ¶

参数: v –
返回类型: bool

PySide2.QtGui.QPolygonF. __mul__ ( m ) ¶

参数: m – QMatrix
返回类型: QPolygonF

PySide2.QtGui.QPolygonF. __mul__ ( m ) ¶

参数: m – QTransform
返回类型: QPolygonF

PySide2.QtGui.QPolygonF. __add__ ( l ) ¶

参数: l –
返回类型

PySide2.QtGui.QPolygonF. __iadd__ ( t ) ¶

参数: t – QPointF
返回类型

PySide2.QtGui.QPolygonF. __iadd__ ( t ) ¶

参数: t – QPointF
返回类型

PySide2.QtGui.QPolygonF. __lshift__ ( t ) ¶

参数: t – QPointF
返回类型

PySide2.QtGui.QPolygonF. __eq__ ( v ) ¶

参数: v –
返回类型: bool

PySide2.QtGui.QPolygonF.operator[](i)

参数: i – int
返回类型: QPointF

PySide2.QtGui.QPolygonF. pop_back ( ) ¶

PySide2.QtGui.QPolygonF. pop_front ( ) ¶

PySide2.QtGui.QPolygonF. prepend ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. prepend ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. push_back ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. push_back ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. push_front ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. push_front ( t ) ¶

参数: t – QPointF

PySide2.QtGui.QPolygonF. remove ( i ) ¶

参数: i – int

PySide2.QtGui.QPolygonF. remove ( i , n ) ¶

参数

i – int
n – int

PySide2.QtGui.QPolygonF. removeAll ( t ) ¶

参数: t – QPointF
返回类型: int

PySide2.QtGui.QPolygonF. removeAt ( i ) ¶

参数: i – int

PySide2.QtGui.QPolygonF. removeFirst ( ) ¶

PySide2.QtGui.QPolygonF. removeLast ( ) ¶

PySide2.QtGui.QPolygonF. removeOne ( t ) ¶

参数: t – QPointF
返回类型: bool

PySide2.QtGui.QPolygonF. replace ( i , t ) ¶

参数

i – int
t – QPointF

PySide2.QtGui.QPolygonF. reserve ( size ) ¶

参数: size – int

PySide2.QtGui.QPolygonF. resize ( size ) ¶

参数: size – int

PySide2.QtGui.QPolygonF. setSharable ( sharable ) ¶

参数: sharable – bool

PySide2.QtGui.QPolygonF. shrink_to_fit ( ) ¶

PySide2.QtGui.QPolygonF. size ( ) ¶

返回类型: int

PySide2.QtGui.QPolygonF. squeeze ( ) ¶

PySide2.QtGui.QPolygonF. startsWith ( t ) ¶

参数: t – QPointF
返回类型: bool

PySide2.QtGui.QPolygonF. subtracted ( r ) ¶

参数: r – QPolygonF
返回类型: QPolygonF

Returns a polygon which is r subtracted from this polygon.

Set operations on polygons will treat the polygons as areas. Non-closed polygons will be treated as implicitly closed.

PySide2.QtGui.QPolygonF. swap ( other ) ¶

参数: other – QPolygonF

Swaps polygon other with this polygon. This operation is very fast and never fails.

PySide2.QtGui.QPolygonF. swapItemsAt ( i , j ) ¶

参数

i – int
j – int

PySide2.QtGui.QPolygonF. takeAt ( i ) ¶

参数: i – int
返回类型: QPointF

PySide2.QtGui.QPolygonF. takeFirst ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. takeLast ( ) ¶

返回类型: QPointF

PySide2.QtGui.QPolygonF. toList ( ) ¶

返回类型

PySide2.QtGui.QPolygonF. toPolygon ( ) ¶

返回类型: QPolygon

创建和返回 QPolygon by converting each QPointF 到 QPoint .

另请参阅

toPoint()

PySide2.QtGui.QPolygonF. translate ( offset ) ¶

参数: offset – QPointF

Translate all points in the polygon by the given offset .

另请参阅

translated()

PySide2.QtGui.QPolygonF. translate ( dx , dy ) ¶

参数

dx – qreal
dy – qreal

这是重载函数。

Translates all points in the polygon by ( dx , dy ).

另请参阅

translated()

PySide2.QtGui.QPolygonF. translated ( offset ) ¶

参数: offset – QPointF
返回类型: QPolygonF

Returns a copy of the polygon that is translated by the given offset .

另请参阅

translate()

PySide2.QtGui.QPolygonF. translated ( dx , dy ) ¶

参数

dx – qreal
dy – qreal

返回类型

QPolygonF

这是重载函数。

Returns a copy of the polygon that is translated by ( dx , dy ).

另请参阅

translate()

PySide2.QtGui.QPolygonF. united ( r ) ¶

参数: r – QPolygonF
返回类型: QPolygonF

Returns a polygon which is the union of this polygon and r .

Set operations on polygons will treat the polygons as areas. Non-closed polygons will be treated as implicitly closed.

另请参阅

intersected() subtracted()

PySide2.QtGui.QPolygonF. value ( i ) ¶

参数: i – int
返回类型: QPointF

PySide2.QtGui.QPolygonF. value ( i , defaultValue ) ¶

参数

i – int
defaultValue – QPointF

返回类型

QPointF

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QPolygonF ¶

概要 ¶

函数 ¶

静态函数 ¶

详细描述 ¶