Re: [Imtoolkit-users] Draw line on a image

[Antonio S. <sc...@te...>]

Here it is in Lua:

require"imlua"
require"imlua_process"
require"cdlua"
require"cdluaim"

local crd = im.ImageCreate(2200, 1700, im.RGB, im.BYTE)
im.ProcessRenderConstant(crd, {255, 255, 255})
local canvas = crd:cdCreateCanvas()
canvas:LineStyle(cd.DASHED)
canvas:Line(10, 10, 50, 50)
cd.KillCanvas(canvas)
im.FileImageSave("a.png", "PNG", crd)

Best,
Scuri



On Tue, Jul 22, 2014 at 1:21 AM, Milind Gupta <mil...@gm...>
wrote:

> Tried this:
>
> local crd = im.ImageCreate(2200, 1700, im.RGB, im.BYTE)
>     im.ProcessRenderConstant(crd, {255, 255, 255})
>  canvas =
> cd.CreateCanvas(cd.IMAGERGB,tostring(crd:Width()).."x"..tostring(crd:Height()).."
> 0x"..tostring(crd[0]):match("imImageChannel%((.-)%)").."
> 0x"..tostring(crd[1]):match("imImageChannel%((.-)%)").."
> 0x"..tostring(crd[2]):match("imImageChannel%((.-)%)"))
>  canvas:LineStyle(cd.DASHED)
> canvas:Line(10, 10, 50, 50)
> cd.KillCanvas(canvas)
>  im.FileImageSave("a.png", "PNG", crd)
>
> But did not work just a white image
>
>
> Milind
>
>
> On Mon, Jul 21, 2014 at 5:58 PM, Milind Gupta <mil...@gm...>
> wrote:
>
>> Thanks for sending the steps. I am struggling to find a lua equivalent.
>> Is it possible to implement it in lua?
>>
>> Thanks,
>> Milind
>>
>>
>>
>> On Mon, Jul 21, 2014 at 7:23 AM, Antonio Scuri <sc...@te...>
>> wrote:
>>
>>>  Hi,
>>>
>>>  Using the CD library. You can create a CD_IMAGERGB canvas using the
>>> existing image buffers.
>>>
>>>  Here is a sample in C:
>>>
>>> imImage* image = *imImageCreate*(width, height, IM_RGB, IM_BYTE);
>>> // Can also call *imImageAddAlpha* if alpha support is wanted
>>> cdCanvas* canvas = cdCreateCanvasf(CD_IMAGERGB, "%dx%d %p %p %p", width, height,
>>>                                    image->data[0], image->data[1], image->data[2]);cdCanvasLineStyle(canvas, CD_DASHED);
>>> cdCanvasLine(canvas, 10, 10, 50, 50);
>>> cdKillCanvas(canvas);
>>> *imFileImageSave*(file_name, "PNG", image);*imImageDestroy*(image);
>>>
>>> Best,
>>> Scuri
>>>
>>>
>>> On Mon, Jul 21, 2014 at 3:31 AM, Milind Gupta <mil...@gm...>
>>> wrote:
>>>
>>>> Hi,
>>>>        I am combining some images on a bigger images. How can I draw
>>>> lines also on that combined image?
>>>>
>>>> Thanks,
>>>> Milind
>>>>
>>>>
>>>>
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>>
>
>
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