Re: [ferret_users] How to drawing rainbow color lines?

[Jian Ma <jianma@xxxxxxxxxx>]

Hi Ansley and All,

The shade colors are right. I got the right results after inserting the
color definitions in the eps file:

ct 1 [0.000000 0.000000 0.000000] put
ct 2 [0.800000 0.000000 1.000000] put
ct 3 [0.550000 0.100000 1.000000] put
ct 4 [0.300000 0.200000 1.000000] put
ct 5 [0.150000 0.400000 0.650000] put
ct 6 [0.000000 0.600000 0.300000] put
ct 7 [0.500000 0.800000 0.150000] put
ct 8 [1.000000 1.000000 0.000000] put
ct 9 [1.000000 0.500000 0.000000] put
ct 10 [1.000000 0.000000 0.000000] put
ct 11 [0.800000 0.000000 0.000000] put
ct 12 [0.600000 0.000000 0.000000] put
ct 13 [1.000000 1.000000 1.000000] put

By default, gksm2ps only define 6 colors:

ct 1 [0.000000 0.000000 0.000000] put
ct 2 [0.800000 0.000000 1.000000] put
ct 3 [0.550000 0.100000 1.000000] put
ct 4 [0.300000 0.200000 1.000000] put
ct 5 [0.150000 0.400000 0.650000] put
ct 6 [0.000000 0.600000 0.300000] put

If our customized color number is still 6, it is alright. But if we
define > 6, the colors 7+ will not be included in the EPS file.

Do we have better method to adjust this rather than manually modifying
the eps file?

Many thanks,
Tony

On Mon, 2009-06-01 at 13:00 -1000, Jian Ma wrote:
> Hi Ansley,
> 
> But the warm colors doesn't look right in .eps file.
> 
> Any idea?
> Tony
> 
> On Mon, 2009-06-01 at 14:33 -0700, Ansley Manke wrote:
> > Hi - 
> > well, that's been in the code for quite a while but never documented,
> > so I've got to do that!
> > 
> > Ansley
> > 
> > Jian Ma wrote: 
> > > Hi Ansley,
> > > 
> > > That's exactly what I want! You are always saving my life!
> > > 
> > > Mahalo,
> > > Tony
> > > 
> > > On Mon, 2009-06-01 at 14:12 -0700, Ansley Manke wrote:
> > >   
> > > > Hi Jian,
> > > > 
> > > > Ferret has a MODE LINECOLORS which lets us set any number of line 
> > > > colors, but they must be set individually; they do not just take on a 
> > > > palette of colors. Colors are set via PPL COLOR as always;  PPL 
> > > > COLOR,ipen,R,G,B  where R,G,B are red,green,blue take on values 0 to 100.
> > > > 
> > > > Try this;
> > > > 
> > > > set mode linecolors:12
> > > > 
> > > > ppl color,7,100,50,0   ! orange
> > > > ppl color,8,0,55,0     ! dark green
> > > > ppl color,9,60,0,100   ! purple
> > > > ppl color,10,100,60,70 ! pink
> > > > ppl color,11,80,70,60  ! tan
> > > > ppl color,12,100,75,0  ! yellow
> > > > plot/thick/line/i=1:100 \
> > > >  cos(i/20), cos(i/24), cos(i/28), cos(i/32), \
> > > >  cos(i/36), cos(i/40), cos(i/44), cos(i/48), \
> > > >  cos(i/52), cos(i/56), cos(i/60), cos(i/64)
> > > > 
> > > > CANCEL MODE LINECOLORS  ! sets the number back to the default of 6
> > > > SET WINDOW/NEW          ! the CANCEL MODE doesn't take effect until a 
> > > > new window is started.
> > > > 
> > > > This has remained undocumented because until recently it was not working 
> > > > correctly in all modes of Ferret (batch mode  -gif mode, and so on.)  
> > > > We'll get it into the documentation shortly. Note that choosing to set 
> > > > extra colors for lines takes away from the number of colors available 
> > > > for color-filled plots using palettes.
> > > > 
> > > > Making scripts to assign sets of colors would be pretty straitforward.
> > > > 
> > > > Ansley
> > > > 
> > > > Ansley
> > > > 
> > > > Jian Ma wrote:
> > > >     
> > > > > Dear All,
> > > > > 
> > > > > I am thinking of drawing rainbow color lines as default in GrADS. It is
> > > > > a useful capability but Ferret could only draw 6+white color lines with
> > > > > 3 thickness. What a pity!
> > > > > 
> > > > > Is there any method to draw any color line like we easily do in shade?
> > > > > Or will new versions of Ferret include that function?
> > > > > 
> > > > > Many thanks,
> > > > > Tony
> > > > > 
> > > > >   
> > > > >       
> > > 
> > >