GeoDataLatLonBox Class Reference
from PyKDE4.marble import *
Inherits: Marble.GeoDataObject → Marble.GeoNode
Namespace: Marble
Detailed Description
A class that defines a 2D bounding box for geographic data.
GeoDataLatLonBox is a 2D bounding box that describes a geographic area
in terms of latitude and longitude.
The bounding box gets described by assigning the northern, southern,
eastern and western boundary.
So usually the value of the eastern boundary is bigger than the
value of the western boundary.
This is also true if the GeoDataLatLonBox covers the whole longitude
range from 180 deg West to 180 deg East. Notably in this case
the bounding box crosses the date line.
If the GeoDataLatLonBox does not cover the whole longitude range but still
crosses the date line then the eastern boundary has got a smaller value than
the western one.
Methods |
| | __init__ (self) |
| | __init__ (self, float north, float south, float east, float west, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| | __init__ (self, Marble.GeoDataLatLonBox a0) |
| | boundaries (self, float north, float south, float east, float west, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| Marble.GeoDataCoordinates | center (self) |
| | clear (self) |
| bool | contains (self, Marble.GeoDataCoordinates a0) |
| bool | contains (self, Marble.GeoDataLatLonBox a0) |
| bool | containsPole (self, Marble.Pole pole=Marble.AnyPole) |
| bool | crossesDateLine (self) |
| float | east (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| float | height (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| bool | intersects (self, Marble.GeoDataLatLonBox a0) |
| bool | isEmpty (self) |
| bool | isNull (self) |
| QString | nodeType (self) |
| float | north (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| Marble.GeoDataLatLonBox | operator | (self, Marble.GeoDataLatLonBox other) |
| Marble.GeoDataLatLonBox | operator |= (self, Marble.GeoDataLatLonBox other) |
| | pack (self, QDataStream stream) |
| float | rotation (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| | setBoundaries (self, float north, float south, float east, float west, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| | setEast (self, float east, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| | setNorth (self, float north, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| | setRotation (self, float rotation, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| | setSouth (self, float south, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| | setWest (self, float west, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| float | south (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| QString | toString (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| Marble.GeoDataLatLonBox | united (self, Marble.GeoDataLatLonBox other) |
| | unpack (self, QDataStream stream) |
| float | west (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
| float | width (self, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Radian) |
Static Methods |
| Marble.GeoDataLatLonBox | fromLineString (Marble.GeoDataLineString lineString) |
Method Documentation
returns the center of this box
- Returns:
- a coordinate, face-center of the box
Resets the bounding box to its uninitialised state (and thus contains nothing).
| bool containsPole |
( |
self, |
|
|
|
Marble.Pole |
pole=Marble.AnyPole |
|
) |
|
|
|
Detect whether the bounding box contains one of the poles.
- Returns:
- true the bounding box contains one of the poles.
false the bounding box doesn't contain one of the poles.
| bool crossesDateLine |
( |
|
self ) |
|
Detect whether the bounding box crosses the IDL.
- Returns:
- true the bounding box crosses the +/-180 deg longitude.
false the bounding box doesn't cross the +/-180 deg longitude.
Get the eastern boundary of the bounding box.
- Returns:
- the longitude of the eastern boundary.
Get the height of the latitude interval
- Returns:
- the angle covered by the latitude range.
Indicates whether the bounding box is not initialised (and contains nothing).
- Returns:
- Return value is true if bounding box is not initialised.
Indicates whether the bounding box only contains a single 2D point ("singularity").
- Returns:
- Return value is true if the height and the width of the bounding box equal zero.
| QString nodeType |
( |
|
self ) |
|
Get the northern boundary of the bounding box.
- Returns:
- the latitude of the northern boundary.
Unites this bounding box with the given one.
- Returns:
- Returns a reference to self.
| pack |
( |
self, |
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|
QDataStream |
stream |
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) |
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Get the rotation of the bounding box.
- Returns:
- the rotation of the bounding box.
Get the southern boundary of the bounding box.
- Returns:
- the latitude of the southern boundary.
Creates a text string of the bounding box
Returns the bounding LatLonBox of this box with the given one.
| unpack |
( |
self, |
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|
|
QDataStream |
stream |
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) |
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|
Get the western boundary of the bounding box.
- Returns:
- the longitude of the western boundary.
Get the width of the longitude interval
- Returns:
- the angle covered by the longitude range.
Static Method Documentation
Create the smallest bounding box from a line string.
- Returns:
- the smallest bounding box that contains the linestring.
KDE 4.9 PyKDE API Reference
