Fredrik Lundh <[EMAIL PROTECTED]> writes:
> Sergei Organov wrote:
>
[...]
>> Where "most cases" depends on application. I'd be very upset to see,
>> say, 5-6 highly intersecting scientific plots on the same picture drawn
>> using the "marching ants" approach.
>
> but the mostly random colors you ge
"Filip Salomonsson" <[EMAIL PROTECTED]> writes:
> On 10/24/06, Sergei Organov <[EMAIL PROTECTED]> wrote:
>> I'd be very upset to see, say, 5-6 highly intersecting
>> scientific plots on the same picture drawn using the
>> "marching ants" approach.
>
> I'd be a bit upset to see scientific plots *on
Grant Edwards <[EMAIL PROTECTED]> writes:
> The traditional way to draw lines on something with varying colors
> is to use the "xor" operator when drawing the lines.
But first, negotiate a patent license for this highly innovative and
non-obvious technique that is "owned" as US Patent #4,197,590.
Sergei Organov wrote:
> > and doesn't work at all on medium gray or b/w dithered patterns.
>
> Yes, every method has its pros and cons, but XOR is probably most
> efficient.
back in the days when backing store was expensive, and memory bandwidth
was limited, maybe. contemporary graphics har
On 10/24/06, Sergei Organov <[EMAIL PROTECTED]> wrote:
> I'd be very upset to see, say, 5-6 highly intersecting
> scientific plots on the same picture drawn using the
> "marching ants" approach.
I'd be a bit upset to see scientific plots *on a picture* at all,
regardless of approach.
--
filip sal
On 2006-10-24, Fredrik Lundh <[EMAIL PROTECTED]> wrote:
> Sergei Organov wrote:
>
>> There is a better way to do it. Check if the toolkit has line
>> drawing mode that XORs the line color with the background,
>> then draw using this mode and white color of the line.
>
> which means that the selecti
Fredrik Lundh <[EMAIL PROTECTED]> writes:
> Sergei Organov wrote:
>
>> There is a better way to do it. Check if the toolkit has line drawing
>> mode that XORs the line color with the background, then draw using this
>> mode and white color of the line.
>
> which means that the selection looks like
Sergei Organov wrote:
> There is a better way to do it. Check if the toolkit has line drawing
> mode that XORs the line color with the background, then draw using this
> mode and white color of the line.
which means that the selection looks like crap most of the time, and
doesn't work at all on
"Odalrick" <[EMAIL PROTECTED]> writes:
> I need to draw visible lines on pictures with wxPython. That means I
> can't simply use, for instance, a black line since it wont be visible
> on a black or dark picture.
>
> Painting applications like the GIMP accomplish this by altering the
> colour of th
On 2006-10-24, Grant Edwards <[EMAIL PROTECTED]> wrote:
> On 2006-10-24, Odalrick <[EMAIL PROTECTED]> wrote:
>
>> I need to draw visible lines on pictures with wxPython. That means I
>> can't simply use, for instance, a black line since it wont be visible
>> on a black or dark picture.
>>
>> Painti
On 2006-10-24, Odalrick <[EMAIL PROTECTED]> wrote:
> I need to draw visible lines on pictures with wxPython. That means I
> can't simply use, for instance, a black line since it wont be visible
> on a black or dark picture.
>
> Painting applications like the GIMP accomplish this by altering the
>
"Odalrick" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
>I need to draw visible lines on pictures with wxPython. That means I
> can't simply use, for instance, a black line since it wont be visible
> on a black or dark picture.
>
> Painting applications like the GIMP accomplish this
I need to draw visible lines on pictures with wxPython. That means I
can't simply use, for instance, a black line since it wont be visible
on a black or dark picture.
Painting applications like the GIMP accomplish this by altering the
colour of the line based on the colour of the pixel it covers,
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