[REBOL] Re: Dialect: graphics for Charts, Diagrams, Graphing ?
From: carl:cybercraft at: 17-Nov-2001 11:56
On 17-Nov-01, Donald Dalley wrote:
> hello, REBOLs:
> Has anyone made a View graphics dialect, one useful enough to do
> easy charting or graphs? I checked the site, but I didn't find
> anything there.
View comes with a Draw dialect - see info about it via the Desktop on
RT's Rebsite - in the Docs section.
> In the meantime, can anyone suggest how to do simple bar charts of
> percentages?
Here a quick example. Could obviously be shorter, (lots of cuts ands
pastes:), but it should put you on the right track...
REBOL []
view layout [
bar-chart: box white 100x100 effect [
draw [
pen black
fill-pen red box 0x90 9x99
fill-pen blue box 10x90 19x99
fill-pen red box 20x90 29x99
fill-pen blue box 30x90 39x99
fill-pen red box 40x90 49x99
fill-pen blue box 50x90 59x99
fill-pen red box 60x90 69x99
fill-pen blue box 70x90 79x99
fill-pen red box 80x90 89x99
fill-pen blue box 90x90 99x99
]
]
button "Change Sizes" [
bars-blk: next next bar-chart/effect/draw
forskip bars-blk 5 [
bars-blk/4/2: (random 100 - 1)
]
show bar-chart
]
button "Change Colours" [
bars-blk: next next bar-chart/effect/draw
forskip bars-blk 5 [
bars-blk/2: random 255.255.255
]
show bar-chart
]
]
> Can RT do a graphing tutorial?
> Thank you,
> Donald
--
Carl Read
