> From: Oleg Kobchenko <[EMAIL PROTECTED]>
>
> This one and the other are good examples of making new plots from user
> commands. The use of custom marker is a step in the right direction.
>
> The problem with such use of pd is that it brings forward too much
> implementation detail.
>
> It would be good to be able to say
>
> 'stocks' plot open,hi,lo,:close
>
> I wonder if new plot types could be defined as addons, e.g.
> load'graphics/plot/stocks'
>
> This is an attribute of component design: you don't have to modify and
> re-build the existing package.
> Another way of looking at it is pluggable framework.
>
>
> On Nov 23, 2008, at 15:56, "Sherlock, Ric" wrote:
>
> ---Oleg Kobchenko wrote:
> From: "Hahn, Harvey"
> Oleg Kobchenko
> |As in existing error bar and high-low types, I believe the
> |ticks should be drawn geometrically rather than placed as glyphs.
>
> That makes far more sense for the general case with
> resizability.
> Since this thread interests me greatly, do you
> have any suggestions about how one goes about drawing these things
Here's an example of custom plot type.
NB. =========================================================
require 'plot'
coclass 'pzplot'
coinsert 'jzplot'
NB.*typereg v register plot type (framework)
typereg=: 4 : 0
('plot_',y,'_jzplot_')=: ('plot_',y,'_',(>coname''),'_')~ f.
for_i. x do.
((>i),'_jzplot_')=: (((>i),'_jzplot_')~ -. <y),<y
end.
PlotTypes_jzplot_=: ~. PlotTypes2d_jzplot_,PlotTypes3d_jzplot_
empty''
)
NB. sample custom plot type (plugin)
plot_hilo2=: 3 : 0
'x y'=. getgrafxy y
'r c'=. $y
clr=. getitemcolor 2
hilo=. ,./x,."1 [ 2{.y
drawline iDATA;({.clr);PENSIZE;hilo
dx=. 0.33*-/1 0{x
if. r>:3 do.
close=. x,.(2{y),.(x+dx),.2{y
drawline iDATA;({.clr);PENSIZE;close
end.
if. r=4 do.
close=. (x-dx),.(3{y),.x,.3{y
drawline iDATA;({.clr);PENSIZE;close
end.
)
(;:'PlotTypes2d') typereg 'hilo2'
Note 'End-user code'
HLCO=: (0 3 1 2&{@/:~)"1&.|: 4 30 [EMAIL PROTECTED] 100
'hilo' plot 3{.HLCO
'hilo2' plot 3{.HLCO
'hilo2' plot HLCO
)
NB. =========================================================
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