how to draw a image with color bar on real page (draw color bar on parea)

[z z]

Hi Dave
It still did not work when I put the run cbarn up one line.
The script like this

'clear'
'open ctlFile.ctl'
'set lon -67 -59'
'set lat 42 47'
'set lev 1000'
'set t 1'
'set clab forced'
'set map 1 1 5'
'set mpdset hires province.dat'
'set grads off'
'set gxout shaded'
'set vpage 0 11 0 8.5'
'set parea 0 11 0 8.5'
'd t'
'run cbarn'
'printim result.png x480 y300 black'

But If I only take off the sentence 'set parea 0 11 0 8.5' only keep
'set vpage 0 11 0 8.5', then the color barn will be drawed on the
image

Any suggestion?

many Thanks


On Mon, 21 Feb 2005 14:38:22 -0700, Dave Allured <dave.allured at noaa.gov> wrote:
> I think you have a mistake in your script.  You have the run cbarn
> command after the printim command.  This means that the color bar will
> not be included in the output file result.png.
>
> Try moving the run cbarn command up one line.
>
> --Dave
>
> z z wrote:
> > hi all
> > 1. I want to draw a color bar with cbarn.gs. But this color bar seems
> > have to be draw on a vpage. I need a image without title, axix lale
> > etc.
> > The part of the script file likes:
> >
> > 'open test.ctl'
> > 'set lon -67 -56'
> > 'set lat 40 50'
> > 'set t 1'
> > ....
> > 'set vpage 0 11 0 8.5'
> > *'set parea 0 11 0 8.5'
> > 'set xlab off'
> > 'set ylab off'
> > 'set gcout shaded'
> > 'd z'
> > 'printim result.png x800 y600 white'
> > 'run cbarn 1 0 5.5 0.8'
> > 'quit'
> >
> > if i used "set vpage  ' the color bar will be drawed on the bottom of
> > the visual image. while it did not work on the parea.
> >
> > Any suggestion?
> >
> > 2 Is there any way to define the output interval of a variable?
> > For example, there is a temprature variable defined in the control
> > file. The output may range from 10 degree to 20 degree (11 lines with
> > 1 degree interval) for a particular coordinate ((-67, -56) (42 48)) If
> > I cahnge the narrow the coordinate to ((-65,-60) (43 46)), I still
> > want there are 11 lines displayed on the image (may 0.3 degree
> > interval).How can I do this?
> >
> > Thanks a lot
>