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[IDV #IDE-963744]: Trouble overlaying wind vectors on wind speed color shaded plan view



Stephanie,

A couple of suggestions.

1/ You can experiment with the transparency of your layers. Note that you may
have to play around with the rendering order of the layers.

2/ Post-process your data by interpolating to one height.

Best,

Unidata IDV Support


> Hi,
> 
> Yes, that does make sense.  Do you know if there is any way to get around
> this issue?
> 
> address@hidden> wrote:
> 
> > Stephanie,
> >
> > There is some nuanced reasoning here. The vectors are in the horizontal
> > plane
> > *only*. They have no z component and do not follow the slopes of the
> > isosurface
> > of the color filled contours. So some vectors point into the color-filled
> > contours depending on what is happening with the sigma levels of the other
> > layer.  Does that make sense?
> >
> > Best,
> >
> > Unidata IDV Support
> >
> > > Hi Yuan,
> > >
> > > I tried your advice but it didn't seem to work.  I still have a situation
> > > where some of the wind vectors are not visible while others are. It
> > doesn't
> > > seem to make any sense!  Any other ideas?
> > >
> > > Thanks!
> > >
> > > address@hidden> wrote:
> > >
> > > > > Full Name: Stephanie Phelps
> > > > > Email Address: address@hidden
> > > > > Organization: University of Virginia
> > > > > Package Version:
> > > > > Operating System: Mac
> > > > > Hardware:
> > > > > Description of problem: Hello,
> > > > >
> > > > > I want to make two identical figures for 1) 10 m level and 2) my
> > 0.993
> > > > sigma level using WRF output.
> > > > >
> > > > > I want to overlay the wind vectors on wind speed.  I can
> > successfully do
> > > > this using the 2d derived 10m wind speed and vector variables (shown in
> > > > 0z_10m attachment).
> > > > >
> > > > > When I try to make an identical plot for the 0.993 level using the 3d
> > > > grid derived wind speed and vector variables it doesn't work.  The
> > problem
> > > > is that when I select the wind speed and vectors to be 'on' in the
> > plot,
> > > > for some reason about half the wind vectors disappear.  When I turn the
> > > > wind speed 'off' in the plot, all of the wind vectors appear to be
> > there.
> > > > It seems like for some reason the wind speed layer is covering up some
> > wind
> > > > vectors and I can't figure out why.  What it seems like I should do is
> > > > somehow 'bring to the top' the layer that contains the wind vectors so
> > they
> > > > are overlaid and not somehow becoming covered up by the shaded wind
> > speed
> > > > layer.  I have tried a couple of different layers and this is happening
> > > > with all of them.  I also played around with the transparency of the
> > wind
> > > > speed layer and that makes the 'missing' vectors somewhat visible, but
> > they
> > > > seem to be a different color compared to the other vectors?  Not sure
> > why.
> > > > Has anyone else ever had thi
> > > >  s issue?  Thanks in advance for the help!
> > > > >
> > > > >
> > > > Stephanie,
> > > >         Use "Bring to the front" is the correct approach. Normally, you
> > > > create the display of color filled or color shaded plan view first,
> > and then
> > > > the vector display, the later will be on the top. Sometime, you will
> > have
> > > > to use the bring to the front feature to get what you wanted since
> > > > the IDV is 3D application and the rendering order might be the issue
> > here.
> > > >
> > > > Yuan
> > > >
> > > >
> > > > Ticket Details
> > > > ===================
> > > > Ticket ID: IDE-963744
> > > > Department: Support IDV
> > > > Priority: Normal
> > > > Status: Closed
> > > >
> > > >
> > >
> > >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: IDE-963744
> > Department: Support IDV
> > Priority: Normal
> > Status: Closed
> >
> >
> 
> 


Ticket Details
===================
Ticket ID: IDE-963744
Department: Support IDV
Priority: Normal
Status: Closed


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