Try setting string thickness larger<br><br>On Friday, January 12, 2018, sim.aberson <<a href="mailto:sim.aberson@noaa.gov">sim.aberson@noaa.gov</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">With lterp, don't I need another gridded field at a lower resolution as the destination (dest)? I don't have that, just the fields at the 0.02-degree resolution.<br>
<br>
I tried strmden X where x is between -10 and 0. There really isn't much difference between any of them.<br>
<br>
Thanks,<br>
Sim<br>
<br>
On 1/12/18 10:35 AM, Jennifer M Adams wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Use the lterp() function to coarsen the grid of your wind fields to spread out the streamlines. You might also try tweaking the spatial domain a little bit, or playing with other strmden values — try using -8 or -2 to see how that affects things. My recollection is that -1 to -10 is not necessarily a linear path in the same way that 1 to 6 is, but it’s been a while since I played with high-res streamlines. —Jennifer<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Jan 12, 2018, at 9:53 AM, sim.aberson <<a href="mailto:sim.aberson@noaa.gov" target="_blank">sim.aberson@noaa.gov</a>> wrote:<br>
<br>
Thanks for the response. Yes, I want to overlay fields on the wind field, and there are far too many streamlines to see anything with set strmden -10.<br>
<br>
This then brings up the question, is there a way to regrid within grads 2.0+, or do I need to regrid with some other code and then use the regridded files to plot. I could not find anything in the grads documentatoin about regridding.<br>
<br>
Thanks.<br>
<br>
On 1/12/18 6:09 AM, Davide Sacchetti wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
no chance using skip: use strmden<br>
if strmden is not "strong" enough you could regrid your data on the fly<br>
to coarser resolution and plot regridded data<br>
bye bye<br>
Davide<br>
On Thu, 2018-01-11 at 15:58 -0500, sim.aberson wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I have a high-resolution wind analysis<br>
<br>
XDEF 501 LINEAR -5.00000 0.02000<br>
YDEF 401 LINEAR -4.00000 0.02000<br>
<br>
When I plot using<br>
<br>
'set gxout stream'<br>
'set strmden -10'<br>
'set cint 5'<br>
'set clevs 5 10 02 20 25 30 35 40 45 50 55 60 65 70 75 80'<br>
'set ccols 9 14 4 11 5 13 3 10 7 12 8 2 6 9 5 10'<br>
'd urel;vrel;mag(urel,vrel)'<br>
<br>
I get the attached. I want even fewer streamlines than that, but<br>
the<br>
documentation states that density is between -10 and 10.<br>
<br>
I tried to use skip, but that seems to only work for arrows and<br>
barbs,<br>
not streamlines. I tried to create new variables using something<br>
like<br>
<br>
'define uskip=skip(urel,2,2)'<br>
'define vskip=skip(vrel,2,2)'<br>
'd uskip;vskip;mag(uskip,vskip)'<br>
<br>
and I tried<br>
<br>
'd<br>
skip(urel,2,2);skip(vrel,2,2);<wbr>mag(skip(urel,2,2),skip(vrel,2<wbr>,2))'<br>
<br>
and got the same thing for both, a blank plot.<br>
<br>
Any suggestions?<br>
<br>
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Jennifer Miletta Adams<br>
Center for Ocean-Land-Atmosphere Studies (COLA)<br>
George Mason University<br>
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