Class: QgsRectangle¶
-
class
qgis.core.
QgsRectangle
¶ Bases:
sip.wrapper
QgsRectangle(xMin: float, yMin: float = 0, xMax: float = 0, yMax: float = 0) Constructor
QgsRectangle(p1:
QgsPointXY
, p2:QgsPointXY
) Construct a rectangle from two points. The rectangle is normalized after construction.QgsRectangle(qRectF: QRectF) Construct a rectangle from a QRectF. The rectangle is normalized after construction.
QgsRectangle(other:
QgsRectangle
) Copy constructorA rectangle specified with double values.
QgsRectangle
is used to store a rectangle when double values are required. Examples are storing a layer extent or the current view extent of a mapSee also
Methods
Returns the area of the rectangle.
Returns the rectangle as a polygon.
Returns a string representation of the rectangle in WKT format.
Returns a string representation of the rectangle as a WKT Polygon.
Gets rectangle enlarged by buffer.
Returns the center point of the rectangle.
Expands the rectangle so that it covers both the original rectangle and the given rectangle.
Returns
True
when rectangle contains other rectangle.Creates a new rectangle, given the specified
center
point andwidth
andheight
.Creates a new rectangle from a
wkt
string.Grows the rectangle in place by the specified amount.
Returns the height of the rectangle.
Updates the rectangle to include the specified point.
Returns the intersection with the given rectangle.
Returns
True
when rectangle intersects with other rectangle.Swap x/y coordinates in the rectangle.
Returns
True
if the rectangle is empty.Returns
True
if the rectangle has finite boundaries.Test if the rectangle is null (all coordinates zero or after call to setMinimal()).
Normalize the rectangle so it has non-negative width/height.
Returns the perimeter of the rectangle.
Scale the rectangle around its center point.
Scale the rectangle around its
center
point.Sets the rectangle from two
QgsPoints
.Set a rectangle so that min corner is at max and max corner is at min.
Set the maximum x value.
Set the minimum x value.
Set the maximum y value.
Set the minimum y value.
Returns a copy of this rectangle that is snapped to a grid with the specified
spacing
between the grid lines.Converts the rectangle to a 3D box, with the specified
zMin
andzMax
z values.Returns a QRectF with same coordinates as the rectangle.
Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the specified precision.
Returns the width of the rectangle.
Returns the x maximum value (right side of rectangle).
Returns the x minimum value (left side of rectangle).
Returns the y maximum value (top side of rectangle).
Returns the y minimum value (bottom side of rectangle).
-
area
(self) → float¶ Returns the area of the rectangle.
See also
See also
See also
New in version 3.0.
- Return type
float
-
asPolygon
(self) → str¶ Returns the rectangle as a polygon.
- Return type
str
-
asWktCoordinates
(self) → str¶ Returns a string representation of the rectangle in WKT format.
- Return type
str
-
asWktPolygon
(self) → str¶ Returns a string representation of the rectangle as a WKT Polygon.
- Return type
str
-
buffered
(self, width: float) → QgsRectangle¶ Gets rectangle enlarged by buffer.
Note
In earlier QGIS releases this method was named buffer().
See also
New in version 3.0.
- Parameters
width (float) –
- Return type
-
center
(self) → QgsPointXY¶ Returns the center point of the rectangle.
- Return type
-
combineExtentWith
(self, rect: QgsRectangle)¶ Expands the rectangle so that it covers both the original rectangle and the given rectangle.
combineExtentWith(self, x: float, y: float) Expands the rectangle so that it covers both the original rectangle and the given point.
combineExtentWith(self, point:
QgsPointXY
) Expands the rectangle so that it covers both the original rectangle and the given point.New in version 3.2.
- Parameters
rect (QgsRectangle) –
-
contains
(self, rect: QgsRectangle) → bool¶ Returns
True
when rectangle contains other rectangle.contains(self, p:
QgsPointXY
) -> bool ReturnsTrue
when rectangle contains a point.- Parameters
rect (QgsRectangle) –
- Return type
bool
-
fromCenterAndSize
(center: QgsPointXY, width: float, height: float) → QgsRectangle¶ Creates a new rectangle, given the specified
center
point andwidth
andheight
.New in version 3.0.
- Parameters
center (QgsPointXY) –
width (float) –
height (float) –
- Return type
-
fromWkt
(wkt: str) → QgsRectangle¶ Creates a new rectangle from a
wkt
string. The WKT must contain only 5 vertices, representing a rectangle aligned with X and Y axes.New in version 3.0.
- Parameters
wkt (str) –
- Return type
-
grow
(self, delta: float)¶ Grows the rectangle in place by the specified amount.
See also
- Parameters
delta (float) –
-
height
(self) → float¶ Returns the height of the rectangle.
See also
See also
- Return type
float
-
include
(self, p: QgsPointXY)¶ Updates the rectangle to include the specified point.
- Parameters
p (QgsPointXY) –
-
intersect
(self, rect: QgsRectangle) → QgsRectangle¶ Returns the intersection with the given rectangle.
- Parameters
rect (QgsRectangle) –
- Return type
-
intersects
(self, rect: QgsRectangle) → bool¶ Returns
True
when rectangle intersects with other rectangle.- Parameters
rect (QgsRectangle) –
- Return type
bool
-
invert
(self)¶ Swap x/y coordinates in the rectangle.
-
isEmpty
(self) → bool¶ Returns
True
if the rectangle is empty. An empty rectangle may still be non-null if it contains valid information (e.g. bounding box of a point).- Return type
bool
-
isFinite
(self) → bool¶ Returns
True
if the rectangle has finite boundaries. Will returnFalse
if any of the rectangle boundaries are NaN or Inf.- Return type
bool
-
isNull
(self) → bool¶ Test if the rectangle is null (all coordinates zero or after call to setMinimal()). A null rectangle is also an empty rectangle.
New in version 2.4.
- Return type
bool
-
normalize
(self)¶ Normalize the rectangle so it has non-negative width/height.
-
perimeter
(self) → float¶ Returns the perimeter of the rectangle.
See also
New in version 3.0.
- Return type
float
-
scale
(self, scaleFactor: float, c: QgsPointXY = None)¶ Scale the rectangle around its center point.
scale(self, scaleFactor: float, centerX: float, centerY: float) Scale the rectangle around its center point.
- Parameters
scaleFactor (float) –
c (
QgsPointXY
= None) –
-
scaled
(self, scaleFactor: float, center: QgsPointXY = None) → QgsRectangle¶ Scale the rectangle around its
center
point.New in version 3.4.
- Parameters
scaleFactor (float) –
center (
QgsPointXY
= None) –
- Return type
-
set
(self, p1: QgsPointXY, p2: QgsPointXY)¶ Sets the rectangle from two
QgsPoints
. The rectangle is normalised after construction.set(self, xMin: float, yMin: float, xMax: float, yMax: float) Sets the rectangle from four points. The rectangle is normalised after construction.
- Parameters
p1 (QgsPointXY) –
p2 (QgsPointXY) –
-
setMinimal
(self)¶ Set a rectangle so that min corner is at max and max corner is at min. It is NOT normalized.
-
setXMaximum
(self, x: float)¶ Set the maximum x value.
- Parameters
x (float) –
-
setXMinimum
(self, x: float)¶ Set the minimum x value.
- Parameters
x (float) –
-
setYMaximum
(self, y: float)¶ Set the maximum y value.
- Parameters
y (float) –
-
setYMinimum
(self, y: float)¶ Set the minimum y value.
- Parameters
y (float) –
-
snappedToGrid
(self, spacing: float) → QgsRectangle¶ Returns a copy of this rectangle that is snapped to a grid with the specified
spacing
between the grid lines.New in version 3.4.
- Parameters
spacing (float) –
- Return type
-
toBox3d
(self, zMin: float, zMax: float) → QgsBox3d¶ Converts the rectangle to a 3D box, with the specified
zMin
andzMax
z values.New in version 3.0.
- Parameters
zMin (float) –
zMax (float) –
- Return type
-
toRectF
(self) → QRectF¶ Returns a QRectF with same coordinates as the rectangle.
- Return type
QRectF
-
toString
(self, precision: int = 16) → str¶ Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the specified precision. If the specified precision is less than 0, a suitable minimum precision is used.
- Parameters
precision (int = 16) –
- Return type
str
-
width
(self) → float¶ Returns the width of the rectangle.
See also
See also
- Return type
float
-
xMaximum
(self) → float¶ Returns the x maximum value (right side of rectangle).
- Return type
float
-
xMinimum
(self) → float¶ Returns the x minimum value (left side of rectangle).
- Return type
float
-
yMaximum
(self) → float¶ Returns the y maximum value (top side of rectangle).
- Return type
float
-
yMinimum
(self) → float¶ Returns the y minimum value (bottom side of rectangle).
- Return type
float
-