Re: [GD-DEVEL] trouble with antialiasing

Hi Eric,

On 10/26/07, Eric Tucker <[email protected]> wrote:
> Hi,
>
> I am having trouble getting even the most basic antialiasing to work.
> I copied the example right out of the manual and built it in as much
> isolation as possible, but am still getting a non-antialiased line.
> My test source file is included below, and I am building it with:
>
>     gcc -lgd -o gtest gtest.c
>
> This is on Fedora Core 6, with gd-2.0.35-1.fc6 and
> gd-devel-2.0.35-1.fc6.
>
> I was able to get it to antialias by both (a) creating the image
> instead with gdImageCreateTrueColor(), and (b) changing the second
> 99 to a 49, thus making the line be at less than a 45-degree angle.
> But these seem arbitrary to me -- I was just thrashing around
> randomly -- and I don't see why the original code does not work.
>
> Am I missing something obvious here?

>     im = gdImageCreate(100, 100);

im = gdImageCreateTrueColor(100,100);

Truecolor image has AA support.

Cheers,
--Pierrre