Andreas,
Very interesting. Your Cairo driver modifications create an image the same
size as your AGG driver modification that disables AA, but with strikingly
different appearance. Links to examples below. (The examples are pretty
ugly but with some work on the styles in the map file they could
Worth adding to main?
On Wed, May 19, 2021 at 10:15 AM Eichner, Andreas - SID <
andreas.eich...@sid.sachsen.de> wrote:
> If you want to give Cairo a try, you could modify mapcairo.c like this:
>
> diff --git a/mapcairo.c b/mapcairo.c
> index 0f4cc094..d28947d6 100644
> --- a/mapcairo.c
> +++
If you want to give Cairo a try, you could modify mapcairo.c like this:
diff --git a/mapcairo.c b/mapcairo.c
index 0f4cc094..d28947d6 100644
--- a/mapcairo.c
+++ b/mapcairo.c
@@ -517,6 +517,12 @@ imageObj* createImageCairo(int width, int height,
outputFormatObj *format,colorO
This should make the keyword ANTIALIAS in line styles work as expected and draw
linestrings aliased if set to FALSE. But this works not only be adding another
typedef. It also adds another member of that type and to use it the
agg2Render*-methods need to selectively switch between the both
Andreas,
I have built a version of MapServer without AA enabled in mapagg.cpp as you
have suggested. The reduction in file size is remarkable. In some cases it
is 1/2 the size of a GD/GIF or an optimized AGG/PNG8. Aesthetically the
images are pretty bad at first, but by softening the colors in
Hi,
Can someone say if the issue is already fixed or not by
https://github.com/MapServer/MapServer/pull/6225/files
that adds:
typedef mapserver::renderer_scanline_bin_solid
renderer_scanline_aliased;
Is this enough for turning antialiasing off and making png files with lots of
linework
What AGG does with it's sub-pixel accuracy can be viewed as computing the
contribution of the pixels of a virtually larger image to the pixels of the
final image. It uses a gamma function to translate the amount of virtual pixels
into an amount of visual impact on the final pixel - both
