[Cdlib-users] simple sample

[Antonio Scuri]

At 18:45 10/4/2006, Pavol Severa wrote:
>can I find somewhere a simple Lua sample that would draw some picture
>and save it say as png? (of course I found your samples that draw to a
>iup window; everybody should be able to move from there - but not me:)

   Hi,

   To save the image in a file you will need the IM library. To draw 
in the image you can use CD.

   Here is the code to draw in an image and save it to a file (from 
the IM documentation):

local image = im.ImageCreate(500, 500, im.RGB, im.BYTE)

local canvas = image:cdCreateCanvas()  -- Creates a CD_IMAGERGB canvas


cd.Activate(canvas)

cd.Clear()

cd.Font(3, 1, 24)

cd.Text(100, 100, "Test")

cd.Line(0,0,100,100)

cd.KillCanvas(canvas)


im.FileImageSave(image, "new.bmp", "BMP")

   You can find IM here:
        http://www.tecgraf.puc-rio.br/im

Best Regards,
Antonio Scuri
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.luaforge.net/pipermail/cdlib-users/attachments/20060410/8d42af01/attachment.html