ImageData:getPixel
Gets the color of a pixel at a specific position in the image.
Valid x and y values start at 0 and go up to image width and height minus 1. Non-integer values are floored.
In versions prior to 11.0, color component values were within the range of 0 to 255 instead of 0 to 1.
Prior to 0.10.2, this function does not properly handle non-integer coordinates, and may produce an invalid result when non-integer values are passed. |
Function
Synopsis
r, g, b, a = ImageData:getPixel( x, y )
Arguments
Returns
number r
- The red component (0-1).
number g
- The green component (0-1).
number b
- The blue component (0-1).
number a
- The alpha component (0-1).
Examples
When the mouse is clicked, reads the red, green, and blue value of the pixel under the mouse and uses it as the background color.
local imagedata = love.image.newImageData('path/to/Image.png')
local image = love.graphics.newImage(imagedata)
function love.mousepressed(mx, my)
if 0 <= mx and mx < image:getWidth()
and 0 <= my and my < image:getHeight() then
local r, g, b = imagedata:getPixel(mx, my)
love.graphics.setBackgroundColor(r, g, b)
end
end
function love.draw()
love.graphics.draw(image, 0, 0)
end
See Also
Other Languages
Dansk –
Deutsch –
English –
Español –
Français –
Indonesia –
Italiano –
Lietuviškai –
Magyar –
Nederlands –
Polski –
Português –
Română –
Slovenský –
Suomi –
Svenska –
Türkçe –
Česky –
Ελληνικά –
Български –
Русский –
Српски –
Українська –
עברית –
ไทย –
日本語 –
正體中文 –
简体中文 –
Tiếng Việt –
한국어
More info