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AbstractProjection Class Reference

from PyKDE4.marble import *

Namespace: Marble

Detailed Description

Abstract class:
This class can be used as a base class for new classes, but can not be instantiated directly.

A base class for all projections in Marble.


Enumerations

PreservationType { NoPreservation, Conformal, EqualArea }
SurfaceType { Cylindrical, Pseudocylindrical, Hybrid, Conical, Pseudoconical, Azimuthal }

Methods

 __init__ (self)
bool geoCoordinates (self, int x, int y, Marble.ViewportParams viewport, float lon, float lat, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Degree)
bool isOrientedNormal (self)
Marble.GeoDataLatLonAltBox latLonAltBox (self, QRect screenRect, Marble.ViewportParams viewport)
bool mapCoversViewport (self, Marble.ViewportParams viewport)
QRegion mapRegion (self, Marble.ViewportParams viewport)
QPainterPath mapShape (self, Marble.ViewportParams viewport)
float maxLat (self)
float maxValidLat (self)
float minLat (self)
float minValidLat (self)
Marble.AbstractProjection.PreservationType preservationType (self)
bool repeatX (self)
bool repeatableX (self)
bool screenCoordinates (self, float lon, float lat, Marble.ViewportParams viewport, float x, float y)
bool screenCoordinates (self, Marble.GeoDataCoordinates geopoint, Marble.ViewportParams viewport, float x, float y, bool globeHidesPoint)
bool screenCoordinates (self, Marble.GeoDataCoordinates geopoint, Marble.ViewportParams viewport, QPointF screenpoint)
bool screenCoordinates (self, Marble.GeoDataCoordinates coordinates, Marble.ViewportParams viewport, float x, float y, int pointRepeatNum, QSizeF size, bool globeHidesPoint)
 setMaxLat (self, float maxLat)
 setMinLat (self, float minLat)
 setRepeatX (self, bool repeatX)
Marble.AbstractProjection.SurfaceType surfaceType (self)
bool traversableDateLine (self)
bool traversablePoles (self)

Method Documentation

__init__ (   self )

Construct a new AbstractProjection.

bool geoCoordinates (  self,
int  x,
int  y,
Marble.ViewportParams  viewport,
float  lon,
float  lat,
Marble.GeoDataCoordinates.Unit  unit=Marble.GeoDataCoordinates.Degree
)
Abstract method:
This method is abstract and can be overridden but not called directly.

Get the earth coordinates corresponding to a pixel in the map.

Parameters:
x  the x coordinate of the pixel
y  the y coordinate of the pixel
viewport  the viewport parameters
lon  the longitude angle is returned through this parameter
lat  the latitude angle is returned through this parameter
unit  the unit of the angles for lon and lat.

Returns:
true if the pixel (x, y) is within the globe
false if the pixel (x, y) is outside the globe, i.e. in space.

bool isOrientedNormal (   self )
Marble.GeoDataLatLonAltBox latLonAltBox (  self,
QRect  screenRect,
Marble.ViewportParams  viewport
)
bool mapCoversViewport (  self,
Marble.ViewportParams  viewport
)
Abstract method:
This method is abstract and can be overridden but not called directly.
QRegion mapRegion (  self,
Marble.ViewportParams  viewport
)
QPainterPath mapShape (  self,
Marble.ViewportParams  viewport
)
Abstract method:
This method is abstract and can be overridden but not called directly.
float maxLat (   self )
float maxValidLat (   self )
float minLat (   self )
float minValidLat (   self )
Marble.AbstractProjection.PreservationType preservationType (   self )
bool repeatX (   self )
bool repeatableX (   self )
bool screenCoordinates (  self,
float  lon,
float  lat,
Marble.ViewportParams  viewport,
float  x,
float  y
)
Abstract method:
This method is abstract and can be overridden but not called directly.

Get the coordinates of screen points for geographical coordinates in the map.

Parameters:
coordinates  the point on earth, including altitude, that we want the coordinates for.
viewport  the viewport parameters
x  the x coordinates of the pixels are returned through this parameter
y  the y coordinate of the pixel is returned through this parameter
pointRepeatNum  the amount of times that a single geographical point gets represented on the map
globeHidesPoint  whether the point gets hidden on the far side of the earth

Returns:
true if the geographical coordinates are visible on the screen
false if the geographical coordinates are not visible on the screen

See also:
ViewportParams

bool screenCoordinates (  self,
Marble.GeoDataCoordinates  geopoint,
Marble.ViewportParams  viewport,
float  x,
float  y,
bool  globeHidesPoint
)
Abstract method:
This method is abstract and can be overridden but not called directly.

Get the coordinates of screen points for geographical coordinates in the map.

Parameters:
coordinates  the point on earth, including altitude, that we want the coordinates for.
viewport  the viewport parameters
x  the x coordinates of the pixels are returned through this parameter
y  the y coordinate of the pixel is returned through this parameter
pointRepeatNum  the amount of times that a single geographical point gets represented on the map
globeHidesPoint  whether the point gets hidden on the far side of the earth

Returns:
true if the geographical coordinates are visible on the screen
false if the geographical coordinates are not visible on the screen

See also:
ViewportParams

bool screenCoordinates (  self,
Marble.GeoDataCoordinates  geopoint,
Marble.ViewportParams  viewport,
QPointF  screenpoint
)

Get the coordinates of screen points for geographical coordinates in the map.

Parameters:
coordinates  the point on earth, including altitude, that we want the coordinates for.
viewport  the viewport parameters
x  the x coordinates of the pixels are returned through this parameter
y  the y coordinate of the pixel is returned through this parameter
pointRepeatNum  the amount of times that a single geographical point gets represented on the map
globeHidesPoint  whether the point gets hidden on the far side of the earth

Returns:
true if the geographical coordinates are visible on the screen
false if the geographical coordinates are not visible on the screen

See also:
ViewportParams

bool screenCoordinates (  self,
Marble.GeoDataCoordinates  coordinates,
Marble.ViewportParams  viewport,
float  x,
float  y,
int  pointRepeatNum,
QSizeF  size,
bool  globeHidesPoint
)
Abstract method:
This method is abstract and can be overridden but not called directly.

Get the coordinates of screen points for geographical coordinates in the map.

Parameters:
coordinates  the point on earth, including altitude, that we want the coordinates for.
viewport  the viewport parameters
x  the x coordinates of the pixels are returned through this parameter
y  the y coordinate of the pixel is returned through this parameter
pointRepeatNum  the amount of times that a single geographical point gets represented on the map
globeHidesPoint  whether the point gets hidden on the far side of the earth

Returns:
true if the geographical coordinates are visible on the screen
false if the geographical coordinates are not visible on the screen

See also:
ViewportParams

setMaxLat (  self,
float  maxLat
)
setMinLat (  self,
float  minLat
)
setRepeatX (  self,
bool  repeatX
)
Marble.AbstractProjection.SurfaceType surfaceType (   self )
Abstract method:
This method is abstract and can be overridden but not called directly.
bool traversableDateLine (   self )
bool traversablePoles (   self )

Enumeration Documentation

PreservationType
Enumerator:
NoPreservation 
Conformal 
EqualArea 

SurfaceType
Enumerator:
Cylindrical 
Pseudocylindrical 
Hybrid 
Conical 
Pseudoconical 
Azimuthal 

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This documentation is maintained by Simon Edwards.
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