On 18 July 2017 at 15:38, chris burke wrote:
> load 'plot'
> 'dat1 dat2 dat3'=. 10 #&> each 1 2 3;4 5 6 7;8 9
> clr1=: (#dat1) {. STDCLR_jzplot_
> clr2=: (#dat2) {. STDCLR_jzplot_
> clr3=: (#dat3) {. STDCLR_jzplot_
> pd 'itemcolor ',":,clr1,clr2,clr3
> pd 'pensize 5'
> pd dat1
> pd dat2
> pd dat3
There is an easier way to handle this without changing the plot class.
Since we know that plot indexes colors as needed, then you can
programmatically build up the colors to match the data.
For example, this example recycles colors starting from the beginning for
each block of data:
load 'plot'
'
Plot just recycles colors as needed. You can reset the item colors anytime,
but the colors are indexed by the current data item so this is not what you
want. I don't think there is a built-in way to override this.
However, the function that indexes the colors is just:
getitemcolor_jzplot_
3 :
On 17 July 2017 at 16:42, Tom Arneson wrote:
> To get just 4 colors, redefine STDCLR
>
> STDCLR_jzplot_=: 4{. STDCLR_jzplot_
Say I do not know in advance how many graphs will be there.
(I know I can always count them, but...)
Say the number of plotted lines in the 1st and 2nd group (see below)
: programm...@jsoftware.com
Subject: Re: [Jprogramming] reset colours in plot
> Do you have an example where colors are not reused?
I mean reuse = restart, i.e. not necessarily cycle (though possibly also).
Example:
-
load 'plot'
pd 'reset'
pd 'type line'
p
> Do you have an example where colors are not reused?
I mean reuse = restart, i.e. not necessarily cycle (though possibly also).
Example:
-
load 'plot'
pd 'reset'
pd 'type line'
pd i.3
NB.
pd 3+i.3
pd 'show'
-
The question is: what should I write at the place, so that
the sec
Plot should automatically reuse colors. For example STDCLR has 12 entries,
so the following will show the first few colors being reused:
load 'plot'
plot i.15 5
Do you have an example where colors are not reused?
On Mon, Jul 17, 2017 at 6:28 AM, Rudolf Sykora
wrote:
> Hello,
>
> when
> Can I do that easily?
I tried to add:
pd 'itemcolor STDCLR_jwplot_'
at the place where I want to start over with colours,
but it doesn't help.
Thanks
Ruda
--
For information about J forums see http://www.jsoftware.com/forums.
Hello,
when plotting, the colours are by default taken from the STDCLR
list.
After plotting a few lines of a figure, I want to reuse the colours
from that list,
starting again from its beginning.
Can I do that easily?
Thanks
Ruda
-
