QPolygon ¶

QPolygon class provides a vector of points using integer precision. 更多 …

概要 ¶

函数 ¶

def __add__ (l)
def __eq__ (v)
def __iadd__ (t)
def __iadd__ (t)
def __lshift__ (l)
def __lshift__ (t)
def __lshift__ (t)
def __mul__ (, m)
def __mul__ (, m)
def __ne__ (v)
def __reduce__ ()
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 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 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 QPolygon object is a QVector < QPoint >. The easiest way to add points to a QPolygon is to use QVector ‘s streaming operator, as illustrated below:
polygon = QPolygon()
polygon << QPoint(10, 20) << QPoint(20, 30)
											
In addition to the functions provided by QVector , QPolygon provides some point-specific functions.

Each point in a polygon can be retrieved by passing its index to the point() function. To populate the polygon, QPolygon provides the setPoint() function to set the point at a given index, the setPoints() function to set all the points in the polygon (resizing it to the given number of points), and the putPoints() function which copies a number of given points into the polygon from a specified index (resizing the polygon if necessary).

QPolygon provides the boundingRect() and translate() functions for geometry functions. Use the map() function for more general transformations of QPolygons.

QPolygon class is 隐式共享 .

另请参阅

QVector QPolygonF QLine

class QPolygon ¶

QPolygon(v)

QPolygon(other)

QPolygon(r[, closed=false])

QPolygon(v)

QPolygon(size)

param closed

bool

param size

int

param other

QPolygon

param r

QRect

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.QPolygon. __reduce__ ( ) ¶

返回类型: PyObject

PySide2.QtGui.QPolygon. append ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. append ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. append ( l ) ¶

参数: l –

PySide2.QtGui.QPolygon. at ( i ) ¶

参数: i – int
返回类型: QPoint

PySide2.QtGui.QPolygon. back ( ) ¶

返回类型: QPoint

PySide2.QtGui.QPolygon. boundingRect ( ) ¶

返回类型: QRect

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

另请参阅

isEmpty()

PySide2.QtGui.QPolygon. capacity ( ) ¶

返回类型: int

PySide2.QtGui.QPolygon. clear ( ) ¶

PySide2.QtGui.QPolygon. constData ( ) ¶

返回类型: QPoint

PySide2.QtGui.QPolygon. constFirst ( ) ¶

返回类型: QPoint

PySide2.QtGui.QPolygon. constLast ( ) ¶

返回类型: QPoint

PySide2.QtGui.QPolygon. contains ( t ) ¶

参数: t – QPoint
返回类型: bool

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

参数

pt – QPoint
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.QPolygon. count ( ) ¶

返回类型: int

PySide2.QtGui.QPolygon. count ( t ) ¶

参数: t – QPoint
返回类型: int

PySide2.QtGui.QPolygon. data ( ) ¶

返回类型: QPoint

PySide2.QtGui.QPolygon. empty ( ) ¶

返回类型: bool

PySide2.QtGui.QPolygon. endsWith ( t ) ¶

参数: t – QPoint
返回类型: bool

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

参数

t – QPoint
size – int

返回类型

PySide2.QtGui.QPolygon. first ( ) ¶

返回类型: QPoint

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

参数: list –
返回类型

PySide2.QtGui.QPolygon. front ( ) ¶

返回类型: QPoint

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

参数

t – QPoint
from – int

返回类型

int

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

参数

i – int
t – QPoint

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

参数

i – int
t – QPoint

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

参数

i – int
n – int
t – QPoint

PySide2.QtGui.QPolygon. intersected ( r ) ¶

参数: r – QPolygon
返回类型: QPolygon

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.QPolygon. intersects ( r ) ¶

参数: r – QPolygon
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.QPolygon. isEmpty ( ) ¶

返回类型: bool

PySide2.QtGui.QPolygon. isSharedWith ( other ) ¶

参数: other –
返回类型: bool

PySide2.QtGui.QPolygon. last ( ) ¶

返回类型: QPoint

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

参数

t – QPoint
from – int

返回类型

int

PySide2.QtGui.QPolygon. length ( ) ¶

返回类型: int

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

参数

pos – int
len – int

返回类型

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

参数

from – int
to – int

PySide2.QtGui.QPolygon. __ne__ ( v ) ¶

参数: v –
返回类型: bool

PySide2.QtGui.QPolygon. __mul__ ( m ) ¶

参数: m – QMatrix
返回类型: QPolygon

PySide2.QtGui.QPolygon. __mul__ ( m ) ¶

参数: m – QTransform
返回类型: QPolygon

PySide2.QtGui.QPolygon. __add__ ( l ) ¶

参数: l –
返回类型

PySide2.QtGui.QPolygon. __iadd__ ( t ) ¶

参数: t – QPoint
返回类型

PySide2.QtGui.QPolygon. __iadd__ ( t ) ¶

参数: t – QPoint
返回类型

PySide2.QtGui.QPolygon. __lshift__ ( t ) ¶

参数: t – QPoint
返回类型

PySide2.QtGui.QPolygon. __lshift__ ( t ) ¶

参数: t – QPoint
返回类型

PySide2.QtGui.QPolygon. __lshift__ ( l ) ¶

参数: l –
返回类型

PySide2.QtGui.QPolygon. __eq__ ( v ) ¶

参数: v –
返回类型: bool

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

参数: i – int
返回类型: QPoint

PySide2.QtGui.QPolygon. pop_back ( ) ¶

PySide2.QtGui.QPolygon. pop_front ( ) ¶

PySide2.QtGui.QPolygon. prepend ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. prepend ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. push_back ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. push_back ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. push_front ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. push_front ( t ) ¶

参数: t – QPoint

PySide2.QtGui.QPolygon. remove ( i ) ¶

参数: i – int

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

参数

i – int
n – int

PySide2.QtGui.QPolygon. removeAll ( t ) ¶

参数: t – QPoint
返回类型: int

PySide2.QtGui.QPolygon. removeAt ( i ) ¶

参数: i – int

PySide2.QtGui.QPolygon. removeFirst ( ) ¶

PySide2.QtGui.QPolygon. removeLast ( ) ¶

PySide2.QtGui.QPolygon. removeOne ( t ) ¶

参数: t – QPoint
返回类型: bool

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

参数

i – int
t – QPoint

PySide2.QtGui.QPolygon. reserve ( size ) ¶

参数: size – int

PySide2.QtGui.QPolygon. resize ( size ) ¶

参数: size – int

PySide2.QtGui.QPolygon. setSharable ( sharable ) ¶

参数: sharable – bool

PySide2.QtGui.QPolygon. shrink_to_fit ( ) ¶

PySide2.QtGui.QPolygon. size ( ) ¶

返回类型: int

PySide2.QtGui.QPolygon. squeeze ( ) ¶

PySide2.QtGui.QPolygon. startsWith ( t ) ¶

参数: t – QPoint
返回类型: bool

PySide2.QtGui.QPolygon. subtracted ( r ) ¶

参数: r – QPolygon
返回类型: QPolygon

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.QPolygon. swap ( other ) ¶

参数: other – QPolygon

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

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

参数

i – int
j – int

PySide2.QtGui.QPolygon. takeAt ( i ) ¶

参数: i – int
返回类型: QPoint

PySide2.QtGui.QPolygon. takeFirst ( ) ¶

返回类型: QPoint

PySide2.QtGui.QPolygon. takeLast ( ) ¶

返回类型: QPoint

PySide2.QtGui.QPolygon. toList ( ) ¶

返回类型

PySide2.QtGui.QPolygon. translate ( offset ) ¶

参数: offset – QPoint

这是重载函数。

Translates all points in the polygon by the given offset .

另请参阅

translated()

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

参数

dx – int
dy – int

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

另请参阅

translated()

PySide2.QtGui.QPolygon. translated ( offset ) ¶

参数: offset – QPoint
返回类型: QPolygon

这是重载函数。

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

另请参阅

translate()

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

参数

dx – int
dy – int

返回类型

QPolygon

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

另请参阅

translate()

PySide2.QtGui.QPolygon. united ( r ) ¶

参数: r – QPolygon
返回类型: QPolygon

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

Set operations on polygons, will treat the polygons as areas, and implicitly close the polygon.

另请参阅

intersected() subtracted()

PySide2.QtGui.QPolygon. value ( i ) ¶

参数: i – int
返回类型: QPoint

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

参数

i – int
defaultValue – QPoint

返回类型

QPoint

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QPolygon ¶

概要 ¶

函数 ¶

静态函数 ¶

详细描述 ¶