Package mapnik :: Module _mapnik :: Class Image

Class Image

 object --+    
          |    
??.instance --+
              |
             Image

This class represents a 32 bit RGBA image.

Instance Methods

__init__(...)
__init__( (object)arg1, (int)arg2, (int)arg3) -> None :

__reduce__(...)
helper for pickle

blend(...)
blend( (Image)arg1, (int)arg2, (int)arg3, (Image)arg4, (float)arg5) -> None :

composite(...)
composite( (Image)arg1, (Image)arg2, (CompositeOp)arg3) -> None :

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

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

save(...)
save( (Image)arg1, (str)arg2) -> None :

set_alpha(...)
set_alpha( (Image)arg1, (float)arg2) -> None : Set the overall alpha channel of the Image

set_color_to_alpha(...)
set_color_to_alpha( (Image)arg1, (Color)arg2) -> None : Set a given color to the alpha channel of the Image

set_grayscale_to_alpha(...)
set_grayscale_to_alpha( (Image)arg1) -> None : Set the grayscale values to the alpha channel of the Image

tostring(...)
tostring( (Image)arg1) -> object :

view(...)
view( (Image)arg1, (int)arg2, (int)arg3, (int)arg4, (int)arg5) -> ImageView :

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

Inherited from unreachable.instance: __new__

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

Static Methods

open(...)
open( (str)arg1) -> Image :

Class Variables
	__instance_size__ = `32`

Properties
	background The background color of the image.
Inherited from `object`: `__class__`

Method Details

init(...)
(Constructor)


__init__( (object)arg1, (int)arg2, (int)arg3) -> None :

    C++ signature :
        void __init__(_object*,int,int)

Overrides: object.__init__

reduce(...)

helper for pickle

Overrides: object.__reduce__: (inherited documentation)

blend(...)


blend( (Image)arg1, (int)arg2, (int)arg3, (Image)arg4, (float)arg5) -> None :

    C++ signature :
        void blend(mapnik::image_32 {lvalue},unsigned int,unsigned int,mapnik::image_32,float)

composite(...)


composite( (Image)arg1, (Image)arg2, (CompositeOp)arg3) -> None :

    C++ signature :
        void composite(mapnik::image_32 {lvalue},mapnik::image_32 {lvalue},mapnik::composite_mode_e)

height(...)


height( (Image)arg1) -> int :

    C++ signature :
        unsigned int height(mapnik::image_32 {lvalue})

open(...)
Static Method


open( (str)arg1) -> Image :

    C++ signature :
        boost::shared_ptr<mapnik::image_32> open(std::string)

painted(...)


painted( (Image)arg1) -> bool :

    C++ signature :
        bool painted(mapnik::image_32)

save(...)


save( (Image)arg1, (str)arg2) -> None :

    C++ signature :
        void save(mapnik::image_32,std::string)

save( (Image)arg1, (str)arg2, (str)arg3) -> None :

    C++ signature :
        void save(mapnik::image_32,std::string,std::string)

save( (Image)arg1, (str)arg2, (str)arg3, (object)arg4) -> None :

    C++ signature :
        void save(mapnik::image_32,std::string,std::string,mapnik::rgba_palette)

set_alpha(...)


set_alpha( (Image)arg1, (float)arg2) -> None :
    Set the overall alpha channel of the Image

    C++ signature :
        void set_alpha(mapnik::image_32 {lvalue},float)

set_color_to_alpha(...)


set_color_to_alpha( (Image)arg1, (Color)arg2) -> None :
    Set a given color to the alpha channel of the Image

    C++ signature :
        void set_color_to_alpha(mapnik::image_32 {lvalue},mapnik::color)

set_grayscale_to_alpha(...)


set_grayscale_to_alpha( (Image)arg1) -> None :
    Set the grayscale values to the alpha channel of the Image

    C++ signature :
        void set_grayscale_to_alpha(mapnik::image_32 {lvalue})

tostring(...)


tostring( (Image)arg1) -> object :

    C++ signature :
        _object* tostring(mapnik::image_32)

tostring( (Image)arg1, (str)arg2) -> object :

    C++ signature :
        _object* tostring(mapnik::image_32,std::string)

tostring( (Image)arg1, (str)arg2, (object)arg3) -> object :

    C++ signature :
        _object* tostring(mapnik::image_32,std::string,mapnik::rgba_palette)

view(...)


view( (Image)arg1, (int)arg2, (int)arg3, (int)arg4, (int)arg5) -> ImageView :

    C++ signature :
        mapnik::image_view<mapnik::ImageData<unsigned int> > view(mapnik::image_32 {lvalue},unsigned int,unsigned int,unsigned int,unsigned int)

width(...)


width( (Image)arg1) -> int :

    C++ signature :
        unsigned int width(mapnik::image_32 {lvalue})

Property Details

background

The background color of the image.

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