Package mapnik :: Module _mapnik :: Class Grid

Class Grid

 object --+    
          |    
??.instance --+
              |
             Grid

This class represents a feature hitgrid.

Instance Methods

__init__(...)
__init__( (object)arg1, (int)width, (int)height [, (str)key='__id__' [, (int)resolution=1]]) -> None : Create a mapnik.Grid object

__reduce__(...)
helper for pickle

encode(...)
encode( (Grid)arg1 [, (str)encoding='utf' [, (bool)features=True [, (int)resolution=4]]]) -> dict : Encode the grid as as optimized json

height(...)
height( (Grid)arg1) -> int :

painted(...)
painted( (Grid)arg1) -> bool :

view(...)
view( (Grid)arg1, (int)arg2, (int)arg3, (int)arg4, (int)arg5) -> GridView :

width(...)
width( (Grid)arg1) -> int :

Inherited from unreachable.instance: __new__

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Variables
	__instance_size__ = `32`

Properties
	key Get/Set key to be used as unique indentifier for features The value should either be __id__ to refer to the feature.id() or some globally unique integer or string attribute field
Inherited from `object`: `__class__`

Method Details

init(...)
(Constructor)


__init__( (object)arg1, (int)width, (int)height [, (str)key='__id__' [, (int)resolution=1]]) -> None :
    Create a mapnik.Grid object
    

    C++ signature :
        void __init__(_object*,int,int [,std::string='__id__' [,unsigned int=1]])

Overrides: object.__init__

reduce(...)

helper for pickle

Overrides: object.__reduce__: (inherited documentation)

encode(...)


encode( (Grid)arg1 [, (str)encoding='utf' [, (bool)features=True [, (int)resolution=4]]]) -> dict :
    Encode the grid as as optimized json
    

    C++ signature :
        boost::python::dict encode(mapnik::hit_grid<unsigned short> [,std::string='utf' [,bool=True [,unsigned int=4]]])

height(...)


height( (Grid)arg1) -> int :

    C++ signature :
        unsigned int height(mapnik::hit_grid<unsigned short> {lvalue})

painted(...)


painted( (Grid)arg1) -> bool :

    C++ signature :
        bool painted(mapnik::hit_grid<unsigned short>)

view(...)


view( (Grid)arg1, (int)arg2, (int)arg3, (int)arg4, (int)arg5) -> GridView :

    C++ signature :
        mapnik::hit_grid_view<mapnik::ImageData<unsigned short> > view(mapnik::hit_grid<unsigned short> {lvalue},unsigned int,unsigned int,unsigned int,unsigned int)

width(...)


width( (Grid)arg1) -> int :

    C++ signature :
        unsigned int width(mapnik::hit_grid<unsigned short> {lvalue})

Property Details

key

Get/Set key to be used as unique indentifier for features The value should either be __id__ to refer to the feature.id() or some globally unique integer or string attribute field

Get Method:: unreachable(...)
Set Method:: unreachable(...)