KDE 4.2 PyKDE API Reference for Marble
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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.


Methods

 __init__ (self)
 coordinateExtremes (self, float lon, float lat, float westLon, float eastLon, float otherWestLon, float otherEastLon, float northLat, float southLat)
bool geoCoordinates (self, int x, int y, Marble.ViewportParams viewport, float lon, float lat, Marble.GeoDataCoordinates.Unit unit=Marble.GeoDataCoordinates.Degree)
AbstractProjectionHelper helper (self)
Marble.GeoDataLatLonAltBox latLonAltBox (self, QRect screenRect, Marble.ViewportParams viewport)
bool mapCoversViewport (self, Marble.ViewportParams viewport)
float maxLat (self)
float minLat (self)
Marble.GeoDataLinearRing rectOutline (self, QRect screenRect, Marble.ViewportParams viewport)
bool repeatX (self)
bool screenCoordinates (self, float lon, float lat, Marble.ViewportParams viewport, int x, int y)
bool screenCoordinates (self, Marble.GeoDataCoordinates geopoint, Marble.ViewportParams viewport, int x, int y, bool globeHidesPoint)
bool screenCoordinates (self, Marble.GeoDataCoordinates geopoint, Marble.ViewportParams viewport, int x, int y)
bool screenCoordinates (self, Marble.GeoDataCoordinates coordinates, Marble.ViewportParams viewport, int x, int y, int pointRepeatNum, bool globeHidesPoint)
bool screenCoordinates (self, Marble.GeoDataLineString lineString, Marble.ViewportParams viewport, QVector
 setRepeatX (self, bool val)
QPolygonF tessellateLineSegment (self, Marble.GeoDataCoordinates previousCoords, Marble.GeoDataCoordinates currentCoords, int count, Marble.ViewportParams viewport, Marble.TessellationFlags f=0)
bool traversableMaxLat (self)

Method Documentation

__init__ (   self )

Construct a new AbstractProjection.

coordinateExtremes (  self,
float  lon,
float  lat,
float  westLon,
float  eastLon,
float  otherWestLon,
float  otherEastLon,
float  northLat,
float  southLat
)
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.

AbstractProjectionHelper helper (   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.
float maxLat (   self )
float minLat (   self )
Marble.GeoDataLinearRing rectOutline (  self,
QRect  screenRect,
Marble.ViewportParams  viewport
)
bool repeatX (   self )
bool screenCoordinates (  self,
float  lon,
float  lat,
Marble.ViewportParams  viewport,
int  x,
int  y
)
Abstract method:
This method is abstract and can be overridden but not called directly.

Get the screen coordinates corresponding to geographical coordinates in the map.

Parameters:
lon  the lon coordinate of the requested pixel position in radians
lat  the lat coordinate of the requested pixel position in radians
viewport  the viewport parameters
x  the x coordinate of the pixel is returned through this parameter
y  the y coordinate of the pixel is returned through this parameter

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,
int  x,
int  y,
bool  globeHidesPoint
)
Abstract method:
This method is abstract and can be overridden but not called directly.

Get the screen coordinates corresponding to geographical coordinates in the map.

Parameters:
geopoint  the point on earth, including altitude, that we want the coordinates for.
viewport  the viewport parameters
x  the x coordinate of the pixel is returned through this parameter
y  the y coordinate of the pixel is returned through this parameter
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,
int  x,
int  y
)
bool screenCoordinates (  self,
Marble.GeoDataCoordinates  coordinates,
Marble.ViewportParams  viewport,
int  x,
int  y,
int  pointRepeatNum,
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:
geopoint  the point on earth, including altitude, that we want the coordinates for.
viewport  the viewport parameters
planetAxisMatrix  The matrix describing the current rotation of the globe
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.GeoDataLineString  lineString,
Marble.ViewportParams  viewport,
QVector polygons
)
Abstract method:
This method is abstract and can be overridden but not called directly.
setRepeatX (  self,
bool  val
)
QPolygonF tessellateLineSegment (  self,
Marble.GeoDataCoordinates  previousCoords,
Marble.GeoDataCoordinates  currentCoords,
int  count,
Marble.ViewportParams  viewport,
Marble.TessellationFlags  f=0
)
bool traversableMaxLat (   self )
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