World: r3wp

For some reason, hinting is going to be hard to implement for DRAW. 
I talked this alot over with Gabriele, who felt it was not possible 
to do. It would still be very nice to have for truly scalable GUIs.

Henrik, how could gradients for lines help with downsaclin of vector 
shapes? Can you show me example of the 'downscaled icon'?

My suggestion was three keywords: hint, hint-x and hint-y.


Then you would first provide your scaling transformation, say 0.1. 
Then you provide your shape, and then add hint, hint-x or hint-y 
on each coordinate individually. Those would then be hinted to the 
nearest whole pixel internally.

Well, just turn of Antialiasing

 No. The difference between this and turning off AA is that you can't 
 make hinted rounded rectangles with AA and you can't get a pretty 
 hinted rounded rectangle without AA.

one second.

http://rebol.hmkdesign.dk/files/r3/gui/094.png

It works for the round .r icon, because it's easy to control the 
size of each filled circle, but not for the octagonal icon at the 
bottom.

also the triangle is troublesome

can you provide the DRAW data for the octagonal/triangle icon? I'd 
like to try something....

That was an SVG converted to DRAW, but I'll see what I can find.

need to get some food, back in about 30 minutes

ok,no hurry...

its usually better to generate larger shapes and scale them down, 
this way you have sub-pixel precision when drawing.  all you need 
to do is scale the widths and transform the coordinate space when 
you draw...

Maxim, we could have subpixel precission without the scaling trick. 
We just need to push Carl to make PAIR! to support decimal values 
;)

yep... just noting how to do it currently.

I would also like tuples with a bigger scale.  something like 16 
bit color values...

or even 64 bits, for float or HDRI, shadow maps, etc...  image manipulation.

(that's bits per channel)

for me the draw stroke persistence, is mainly for allowing interaction 
between the application and the graphics... text on curves... spline 
paths for animation, snap to edge, etc.

with two splines and enough information gathering, we can easily 
render bending geometry and stuff like that... right now... its highly 
complex, and we can use the internal AGG binary math to calculate 
all the coordinates to stuff for us... based on the current transforms, 
and stuff.

and we can 
 = "since we can't"

for me its not speed as much as massively usefull (and free) functionality.

Cyphre, posting privately.

So, do we write View/GUI enhancement proposal? :-)

A View proposal would be good, but we need to compile more information. 
We already have the GUI proposal.

Like the Parse Project page, we now have a View Project page:

http://rebol.net/wiki/View_Project

Please fill in your proposals.

cool ....

Is it multicategory? I mean - all draw related stuff goes into Draw 
section? Or each request should start with blue description name? 
If you want to divide it into categories, we might need more of them 
- e.g. where to put stuff like Top Window Transparency, Multimedia 
Timers (not sure that one belongs there, but I want to have it somewhere)

Perhaps we could split it into a View Project and a DRAW Project.

Dunno - there can be many various requests, but basically it would 
be correct, although we do have Effect pipeline too, but I don't 
know, if it is AGG based, or not ....

AGG is not only about draw - it is our rendering engine too ...

I mean - compositing engine ...

I think I'll leave it for this page for now. We can split it in multiple 
pages later. Our discussions seem to criss-cross between DRAW and 
View anyway.

Henrik, have you the original svg files of the signs ?  I would like 
to see what i get with my parser.
If they are not public domain, don't give them ;-)

hehe, added first request :-)

Steeve, sorry, it's a small hack. I grabbed the svg coords from inkscape 
manually and simply pasted them in a text file, made them pretty 
for rebol and converted them to DRAW in a simple way. I have no XML 
parser or anything like that.

bug you kept the original svg files, did you ?

* but you

I'm not sure I did.

just google "SVG icons", plenty of links :-)

Steeve this was one of my favorite file for testing of the R2 SVG-lite 
viewer:
http://david.bellot.free.fr/svg-cards/

Good luck! ;)

Well, i have enough sources, don't worry.
I just wanted to compare with Henrik's

cyphre... those are incredible test SVG files!

and what  about the text display / font management issues ... and 
this can be linked to viva-rabol or SVG rendering... Cyphre do you 
plan or have taken  some notes about that area ?