Difference between revisions of "ImageData"
(→Load map from image) |
(→Load map from image) |
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Line 47: | Line 47: | ||
for y = 1, height do | for y = 1, height do | ||
local values = {imageData:getPixel( x-1, y-1 )} -- as list {r, g, b, a} | local values = {imageData:getPixel( x-1, y-1 )} -- as list {r, g, b, a} | ||
+ | print (unpack(values )) | ||
map[x][y] = values | map[x][y] = values | ||
end | end |
Revision as of 20:42, 4 February 2022
Raw (decoded) image data.
You can't draw ImageData directly to screen. See Image for that.
Contents
Constructors
Canvas:newImageData | Generates ImageData from the contents of the Canvas. | 0.10.0 | |
love.graphics.newScreenshot | Creates a screenshot and returns the ImageData. | 11.0 | |
love.image.newImageData | Creates a new ImageData object. |
Functions
Data:clone | Creates a new copy of the Data object. | 11.0 | |
Data:getFFIPointer | Gets an FFI pointer to the Data. | 11.3 | |
Data:getPointer | Gets a pointer to the Data. | ||
Data:getSize | Gets the Data's size in bytes. | ||
Data:getString | Gets the full Data as a string. | 0.9.0 | |
ImageData:encode | Encodes the ImageData to a file format and optionally writes it to the save directory. | ||
ImageData:getDimensions | Gets the width and height of the ImageData in pixels. | 0.9.0 | |
ImageData:getFormat | Gets the pixel format of the ImageData. | 11.0 | |
ImageData:getHeight | Gets the height of the ImageData in pixels. | ||
ImageData:getPixel | Gets the color of a pixel. | ||
ImageData:getString | Gets the full ImageData as a string. | 0.9.0 | |
ImageData:getWidth | Gets the width of the ImageData in pixels. | ||
ImageData:mapPixel | Transform an image by applying a function to every pixel. | ||
ImageData:paste | Paste into ImageData from another source ImageData. | ||
ImageData:setPixel | Sets the color of a pixel. | ||
Object:release | Immediately destroys the object's Lua reference. | 11.0 | |
Object:type | Gets the type of the object as a string. | ||
Object:typeOf | Checks whether an object is of a certain type. |
Enums
ImageEncodeFormat | Image file formats supported by ImageData:encode. |
Load map from image
local filename = "image.png"
local imageData = love.image.newImageData( filename )
local width, height = imageData:getDimensions( )
local map = {}
for x = 1, width do
map[x] = {}
for y = 1, height do
local values = {imageData:getPixel( x-1, y-1 )} -- as list {r, g, b, a}
print (unpack(values ))
map[x][y] = values
end
end
Supertypes
See Also
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