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World: r3wp

[View] discuss view related issues

Henrik
23-Sep-2005
[2743x2]
actually I think the hardest part would be to display a pretty graph 
:-) retrieving data could be done from within the graph face
I don't know about raw stock data...
Geomol
23-Sep-2005
[2745]
Temperature data is also good for that.
Graham
23-Sep-2005
[2746]
stock market data is available from yahoo I believe, but delayed 
by 15 mins or something
Henrik
23-Sep-2005
[2747]
graham: an oscilloscope could be a bit too intensive :-)
Geomol
23-Sep-2005
[2748]
Or sea-level (changes with tide and weather).
Graham
23-Sep-2005
[2749]
or Canvas release rates
Geomol
23-Sep-2005
[2750x3]
Wind direction.
lol
release rates contra size in kB
Graham
23-Sep-2005
[2753]
I guess I'd better find some docs on the draw dialect and see how 
easily this could be done.
Henrik
23-Sep-2005
[2754]
It could be nice to have general graphing tools for Rebol like RRDTool 
which is a very powerful (but complex) graphing package for Linux
Geomol
23-Sep-2005
[2755x2]
A start:
view layout [box white effect [draw [pen black line 0x100 10x80 20x85 
30x50 40x60 50x65 60x55 70x40 80x50 90x20]]]
Graham
23-Sep-2005
[2757]
or gnuplot
Geomol
23-Sep-2005
[2758x2]
To change data, you could do:
clear next find face/effect/draw 'line
append face/effect/draw data-block
show face
Graham
23-Sep-2005
[2760x2]
what about scatter plots ?
would be as easy to update ?
Geomol
23-Sep-2005
[2762]
Is that points?
Graham
23-Sep-2005
[2763]
yes.
Geomol
23-Sep-2005
[2764x3]
view layout [box white effect [draw [pen none fill-pen black circle 
10x80 4 circle 20x85 4 circle 30x50 4 circle 40x60 4 circle 50x65 
4 circle 60x55 4 circle 70x40 4 circle 80x50 4 circle 90x20 4]]]
Update is almost as easy, just put circle in front and radius (4) 
behind the coords.
Picking data online and show a graph could maybe be an one-liner. 
:-)
Only with REBOL! (TM)
Graham
23-Sep-2005
[2767]
do points have to be done with circles ?
Geomol
23-Sep-2005
[2768]
I guess so. Isn't a dot on a monitor a very small circle? Just change 
radius to 1 or 0.5 or something.
Graham
23-Sep-2005
[2769]
a dot on my monitor is a little square :)
Geomol
23-Sep-2005
[2770x2]
:-) A one-pixel dot:
view layout [box white effect [draw [translate 0.5 0.5 anti-alias 
off pen none fill-pen black circle 50x50 0.5]]]
Graham
23-Sep-2005
[2772x3]
cool.
exactly one pixel too.
Looking carefully at my laptop screen, it's a grid of square pixels.
Geomol
23-Sep-2005
[2775]
The translate move the center of the circle into the middle of a 
pixel. Radius of 0.5 then means, the circle won't go into neighbour 
pixels.
Graham
23-Sep-2005
[2776]
Perhaps you can incorporate a graphing module in Canvas :)
Geomol
23-Sep-2005
[2777x2]
Without the translate, 4 pixels would be black.
Graham, certainly! :-)
Graham
23-Sep-2005
[2779x2]
anim-graph ?
That's the thing about great software; it can be used by others in 
ways the author never conceived
Henrik
23-Sep-2005
[2781]
you could do really weird stuff with that. how about live graphs 
in a presentation?
Brock
23-Sep-2005
[2782x2]
Don't know if quick-plot by Matt Licholai would help you guys in 
any way.
I know it can be found by googling q-plot.r.  Ladislav has done some 
work that used q-plot, not sure if he's enhanced it or if anyone 
else has.
Geomol
24-Sep-2005
[2784]
There is a window face option named "all-over", that will "Causes 
the over event to report a continuous stream of mouse positions as 
the mouse moves over the face". I use it in Canvas, but there seem 
to be a problem. After a while, when I haven't touched the computer 
for some time, it seems, that the all-over option is canceled. It 
can be seen in Canvas, that the coords in the title-bar isn't updated, 
when the mouse is moved.

Does anyone know something about this? I've checked RAMBO, but couldn't 
find anything about it.
Pekr
24-Sep-2005
[2785]
all-over was in some very early beta View days  the default option. 
Later on we found out, that it causes way too much flood of events, 
so it was changed and all-over came to its life .....
PeterWood
2-Oct-2005
[2786]
I unsuccessfully tried to install View 1.3 under Windows/XP on a 
multi-user machine. It is only accessible from the administrator 
account under which the installer was run. It is not visible in the 
All Programs Start menu for others users. I can run it by browsing 
through to the underlying Rebol folder.


Does this mean that I have to manually insert it into the Start menu 
of other users ?
Volker
2-Oct-2005
[2787x4]
try to install it again from a user-account.
it shares then the readonly-files from the admins installation (exe 
etc), but uses a file in the users account for the others (public 
cache etc)
(AFAIK, not xp tot test.)
not xp tot test -> no xp to test
Pekr
2-Oct-2005
[2791x2]
That is far from being a good aproach - in fact, it sucks ...
I understand why it was done in a way it was done though. Installing 
for all users would require at least power-user access, which typical 
user does not have, at least in corporate environment, while at home 
I expect most ppl run as administrators,  although it is not wise 
idea, but it is how typical WinXP install happens ...