Guys,
I'm finding that the devil is in the line " For the Topography, the IDV will
recognize Geopotential height at surface. If not, you need to pick the
appropriate field from the 2D fields." I have a regional relief grid with
lat/lon coordinates, and have tried to overlay both the World Borders shape
(also lat/lon) and a home-made graticule shape (also lat/lon). I can easily
select the FIELD: MAPDATA item (the shape), but have no idea what to do for
the FIELD: TOPOGRAPHY item. IDV offers me a list of "formula" items, but
none appears to match up with my relief grid. No matter what I select, I
get the error message that the units don't match up ("m or gpm"). Any
ideas?
Murray
-----Original Message-----
From: idvusers-bounces@xxxxxxxxxxxxxxxx
[mailto:idvusers-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Julien Chastang
Sent: Thursday, October 02, 2014 12:13 PM
To: David Ahijevych
Cc: idvusers
Subject: Re: [idvusers] painting map lines on 3D topography
David,
We have some additional clarifying remarks for you and the list. You will
need to obtain a shape file for the region of interest. We found these to be
abundant on the web. Here is one for the US states:
http://www.arcgis.com/home/item.html?id=f7f805eb65eb4ab787a0a3e1116ca7e5
Please load the states.shp file in the Data Choosers as you would other
data. Also load your model data, for example 1/2 degree GFS. Once your data
are loaded, go to the 3D Map formula in the place described earlier and
choose a "Topography" display. Click "Create Display". You will see a dialog
where you have to enter MapData and Topography. Choose the shapefile for the
MapData. For the Topography, the IDV will recognize Geopotential height at
surface. If not, you need to pick the appropriate field from the 2D fields.
Let us know if you have additional questions or concerns.
Best,
Unidata IDV Support
On Wed, Oct 1, 2014 at 4:27 PM, Julien Chastang <chastang@xxxxxxxx> wrote:
> Dave,
>
> After your data are loaded, please study the IDV Dashboard, Field
> Selector Tab, Formulas Node (in the Data Sources), Maps, 3D Map.
>
> Also please attend the IDV workshop November 3-6. We are just down the
> road :-)
>
> Best,
>
> Unidata IDV Support
>
>
> On Wed, Oct 1, 2014 at 10:50 AM, David Ahijevych <ahijevyc@xxxxxxxx>
> wrote:
>
>> I'd like to render the map lines along the 3D surface, as if they
>> were painted on. At different viewing angles, the lines should
>> appear stuck to the same surface location.
>>
>> As it is now, either my state borders are obscured by the topography
>> or if I raise the vertical position of the state borders, they give
>> the impression of "floating" above the topography or cutting through it.
>>
>> I know you can render images on a 3D surface but can you render maps
>> on a 3D surface?
>>
>> Thanks
>> Dave
>> _______________________________________________
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>> idvusers@xxxxxxxxxxxxxxxx
>> For list information, to unsubscribe, visit:
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>>
>
>
>
> --
> Julien Chastang
> Scientific Software Developer
> Unidata-UCAR
>
--
Julien Chastang
Scientific Software Developer
Unidata-UCAR
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