[Met_help] [rt.rap.ucar.edu #64753] History for Convex hull
John Halley Gotway via RT
met_help at ucar.edu
Tue Jan 14 16:12:11 MST 2014
----------------------------------------------------------------
Initial Request
----------------------------------------------------------------
Hi,
I have been using MODE and MODE-Analysis for my forecast verification.
At this point, we are investigation a way to display the forecast. We
want to display the raw gridded forecast, but also display some object
information computed by MODE.
So, we have a gridded forecast on which we use the MODE tool to merge
forecast objects that are close enough. What we would like to display is
the raw forecast with the overlying convex hulls computed by MODE. In
the netCDF file I can find the points for each object boundary, but
can't find the points of the convex hull. Where can I find the points of
each convex hull?
Thanks
Anna-Belle Filion
----------------------------------------------------------------
Complete Ticket History
----------------------------------------------------------------
Subject: Re: [rt.rap.ucar.edu #64753] Convex hull
From: John Halley Gotway
Time: Mon Jan 06 11:53:53 2014
Anna-Belle,
The convex hull points are not currently included in the output of
MODE. However, as you mention, the boundary points are in the NetCDF
output file.
As for the convex hulls, really there are two options. Convex hulls
are computed for the individual (or what we call "simple") objects in
both fields. Those convex hulls are used in the computation
of fuzzy logic interest values. Then matching/merging is performed,
which results in the groups of objects (or what we call "cluster"
objects) being defined. The convex hulls shown in the postscript
output file are drawn around the matched clusters of objects. If you
look closely, you'll see that there are no convex hulls drawn around
unmatched objects since they are not part of any matched
cluster object.
Are you interested in seeing the convex hulls which are drawn around
the individual "simple" objects or the ones drawn around the matched
"cluster" objects? Or both?
Once we define this, I can create a development task to add this
functionality to the next version of MET.
Thanks,
John Halley Gotway
met_help at ucar.edu
On 12/30/2013 03:37 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>
> Mon Dec 30 15:37:29 2013: Request 64753 was acted upon.
> Transaction: Ticket created by anna-belle.filion at ec.gc.ca
> Queue: met_help
> Subject: Convex hull
> Owner: Nobody
> Requestors: anna-belle.filion at ec.gc.ca
> Status: new
> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>
>
> Hi,
>
>
>
> I have been using MODE and MODE-Analysis for my forecast
verification.
>
>
>
> At this point, we are investigation a way to display the forecast.
We
> want to display the raw gridded forecast, but also display some
object
> information computed by MODE.
>
>
>
> So, we have a gridded forecast on which we use the MODE tool to
merge
> forecast objects that are close enough. What we would like to
display is
> the raw forecast with the overlying convex hulls computed by MODE.
In
> the netCDF file I can find the points for each object boundary, but
> can't find the points of the convex hull. Where can I find the
points of
> each convex hull?
>
>
>
> Thanks
>
> Anna-Belle Filion
>
>
>
------------------------------------------------
Subject: RE: [rt.rap.ucar.edu #64753] Convex hull
From: Filion,Anna-Belle [Montreal]
Time: Mon Jan 06 12:46:02 2014
Hi John,
I am interested un both. I would like to have access to the convex
hull points of cluster objects and individual simple objects.
Do you knew how long it will take to implement this functionality in
the code?
Thanks
Anna-Belle
-----Message d'origine-----
De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
Envoyé : 6 janvier 2014 13:54
À : Filion,Anna-Belle [Montreal]
Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
Anna-Belle,
The convex hull points are not currently included in the output of
MODE. However, as you mention, the boundary points are in the NetCDF
output file.
As for the convex hulls, really there are two options. Convex hulls
are computed for the individual (or what we call "simple") objects in
both fields. Those convex hulls are used in the computation
of fuzzy logic interest values. Then matching/merging is performed,
which results in the groups of objects (or what we call "cluster"
objects) being defined. The convex hulls shown in the postscript
output file are drawn around the matched clusters of objects. If you
look closely, you'll see that there are no convex hulls drawn around
unmatched objects since they are not part of any matched
cluster object.
Are you interested in seeing the convex hulls which are drawn around
the individual "simple" objects or the ones drawn around the matched
"cluster" objects? Or both?
Once we define this, I can create a development task to add this
functionality to the next version of MET.
Thanks,
John Halley Gotway
met_help at ucar.edu
On 12/30/2013 03:37 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>
> Mon Dec 30 15:37:29 2013: Request 64753 was acted upon.
> Transaction: Ticket created by anna-belle.filion at ec.gc.ca
> Queue: met_help
> Subject: Convex hull
> Owner: Nobody
> Requestors: anna-belle.filion at ec.gc.ca
> Status: new
> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>
>
> Hi,
>
>
>
> I have been using MODE and MODE-Analysis for my forecast
verification.
>
>
>
> At this point, we are investigation a way to display the forecast.
We
> want to display the raw gridded forecast, but also display some
object
> information computed by MODE.
>
>
>
> So, we have a gridded forecast on which we use the MODE tool to
merge
> forecast objects that are close enough. What we would like to
display is
> the raw forecast with the overlying convex hulls computed by MODE.
In
> the netCDF file I can find the points for each object boundary, but
> can't find the points of the convex hull. Where can I find the
points of
> each convex hull?
>
>
>
> Thanks
>
> Anna-Belle Filion
>
>
>
------------------------------------------------
Subject: Re: [rt.rap.ucar.edu #64753] Convex hull
From: John Halley Gotway
Time: Mon Jan 06 14:13:25 2014
Anna-Belle,
Can you tell me what version of MET you're using? Is it METv4.1, the
most recent one?
Since this is an enhancement and not a bugfix, we wouldn't release it
as a patch to METv4.1. It would likely be distributed in the next
release, which has not yet been scheduled.
That being said, I could take a look at the code to see how difficult
it would be to dump out those points. If it's easy, I could probably
add it and send you a patched file. If it's more involved,
it'd have to wait until the next release.
Thanks,
John
On 01/06/2014 12:46 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>
> Hi John,
>
> I am interested un both. I would like to have access to the convex
hull points of cluster objects and individual simple objects.
>
> Do you knew how long it will take to implement this functionality in
the code?
>
> Thanks
> Anna-Belle
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : 6 janvier 2014 13:54
> À : Filion,Anna-Belle [Montreal]
> Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
>
> Anna-Belle,
>
> The convex hull points are not currently included in the output of
MODE. However, as you mention, the boundary points are in the NetCDF
output file.
>
> As for the convex hulls, really there are two options. Convex hulls
are computed for the individual (or what we call "simple") objects in
both fields. Those convex hulls are used in the computation
> of fuzzy logic interest values. Then matching/merging is performed,
which results in the groups of objects (or what we call "cluster"
objects) being defined. The convex hulls shown in the postscript
> output file are drawn around the matched clusters of objects. If
you look closely, you'll see that there are no convex hulls drawn
around unmatched objects since they are not part of any matched
> cluster object.
>
> Are you interested in seeing the convex hulls which are drawn around
the individual "simple" objects or the ones drawn around the matched
"cluster" objects? Or both?
>
> Once we define this, I can create a development task to add this
functionality to the next version of MET.
>
> Thanks,
> John Halley Gotway
> met_help at ucar.edu
>
> On 12/30/2013 03:37 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>
>> Mon Dec 30 15:37:29 2013: Request 64753 was acted upon.
>> Transaction: Ticket created by anna-belle.filion at ec.gc.ca
>> Queue: met_help
>> Subject: Convex hull
>> Owner: Nobody
>> Requestors: anna-belle.filion at ec.gc.ca
>> Status: new
>> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>
>>
>> Hi,
>>
>>
>>
>> I have been using MODE and MODE-Analysis for my forecast
verification.
>>
>>
>>
>> At this point, we are investigation a way to display the forecast.
We
>> want to display the raw gridded forecast, but also display some
object
>> information computed by MODE.
>>
>>
>>
>> So, we have a gridded forecast on which we use the MODE tool to
merge
>> forecast objects that are close enough. What we would like to
display is
>> the raw forecast with the overlying convex hulls computed by MODE.
In
>> the netCDF file I can find the points for each object boundary, but
>> can't find the points of the convex hull. Where can I find the
points of
>> each convex hull?
>>
>>
>>
>> Thanks
>>
>> Anna-Belle Filion
>>
>>
>>
>
>
------------------------------------------------
Subject: RE: [rt.rap.ucar.edu #64753] Convex hull
From: Filion,Anna-Belle [Montreal]
Time: Mon Jan 06 14:29:14 2014
Hi John,
Yes I am using the latest version 4.1.
Ok. Just let me know the solution you choose after analysing the code
and the approximate deadline of a patch if this is a possible
solution.
Thanks
Anna-Belle
-----Message d'origine-----
De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
Envoyé : 6 janvier 2014 16:13
À : Filion,Anna-Belle [Montreal]
Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
Anna-Belle,
Can you tell me what version of MET you're using? Is it METv4.1, the
most recent one?
Since this is an enhancement and not a bugfix, we wouldn't release it
as a patch to METv4.1. It would likely be distributed in the next
release, which has not yet been scheduled.
That being said, I could take a look at the code to see how difficult
it would be to dump out those points. If it's easy, I could probably
add it and send you a patched file. If it's more involved,
it'd have to wait until the next release.
Thanks,
John
On 01/06/2014 12:46 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>
> Hi John,
>
> I am interested un both. I would like to have access to the convex
hull points of cluster objects and individual simple objects.
>
> Do you knew how long it will take to implement this functionality in
the code?
>
> Thanks
> Anna-Belle
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : 6 janvier 2014 13:54
> À : Filion,Anna-Belle [Montreal]
> Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
>
> Anna-Belle,
>
> The convex hull points are not currently included in the output of
MODE. However, as you mention, the boundary points are in the NetCDF
output file.
>
> As for the convex hulls, really there are two options. Convex hulls
are computed for the individual (or what we call "simple") objects in
both fields. Those convex hulls are used in the computation
> of fuzzy logic interest values. Then matching/merging is performed,
which results in the groups of objects (or what we call "cluster"
objects) being defined. The convex hulls shown in the postscript
> output file are drawn around the matched clusters of objects. If
you look closely, you'll see that there are no convex hulls drawn
around unmatched objects since they are not part of any matched
> cluster object.
>
> Are you interested in seeing the convex hulls which are drawn around
the individual "simple" objects or the ones drawn around the matched
"cluster" objects? Or both?
>
> Once we define this, I can create a development task to add this
functionality to the next version of MET.
>
> Thanks,
> John Halley Gotway
> met_help at ucar.edu
>
> On 12/30/2013 03:37 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>
>> Mon Dec 30 15:37:29 2013: Request 64753 was acted upon.
>> Transaction: Ticket created by anna-belle.filion at ec.gc.ca
>> Queue: met_help
>> Subject: Convex hull
>> Owner: Nobody
>> Requestors: anna-belle.filion at ec.gc.ca
>> Status: new
>> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>
>>
>> Hi,
>>
>>
>>
>> I have been using MODE and MODE-Analysis for my forecast
verification.
>>
>>
>>
>> At this point, we are investigation a way to display the forecast.
We
>> want to display the raw gridded forecast, but also display some
object
>> information computed by MODE.
>>
>>
>>
>> So, we have a gridded forecast on which we use the MODE tool to
merge
>> forecast objects that are close enough. What we would like to
display is
>> the raw forecast with the overlying convex hulls computed by MODE.
In
>> the netCDF file I can find the points for each object boundary, but
>> can't find the points of the convex hull. Where can I find the
points of
>> each convex hull?
>>
>>
>>
>> Thanks
>>
>> Anna-Belle Filion
>>
>>
>>
>
>
------------------------------------------------
Subject: Convex hull
From: John Halley Gotway
Time: Thu Jan 09 14:39:26 2014
Anne-Belle,
I've attached a tar file that contains 4 updated files (met_file.h/.cc
and nc_utils.h/.cc). You can place this in the top-level METv4.1
directory and extract it:
tar -xvzf METv4.1_patch_for_anna_belle.tar.gz
And then recompile METv4.1.
When you run MODE, you should notice many more variables in the NetCDF
object files. I tweaked the naming convention of the existing
variables to be consistent with the new ones. You'll now see data
for 6 different polyline types:
- Forecast and Observation Simple Boundary objects (fcst_simp_bdy
and obs_simp_bdy)
- Forecast and Observation Simple Convex Hull objects
(fcst_simp_hull and obs_simp_hull)
- Forecast and Observation Cluster Convex Hull objects
(fcst_clus_hull and obs_clus_hull)
Please take a look and let me know if this is what you were looking
for.
We'll plan to add these changes in to the next release of MET.
However, we want to make their output optional via the MODE
configuration file.
Thanks,
John Halley Gotway
On 01/06/2014 02:29 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>
> Hi John,
>
> Yes I am using the latest version 4.1.
>
> Ok. Just let me know the solution you choose after analysing the
code and the approximate deadline of a patch if this is a possible
solution.
>
> Thanks
> Anna-Belle
>
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : 6 janvier 2014 16:13
> À : Filion,Anna-Belle [Montreal]
> Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
>
> Anna-Belle,
>
> Can you tell me what version of MET you're using? Is it METv4.1,
the most recent one?
>
> Since this is an enhancement and not a bugfix, we wouldn't release
it as a patch to METv4.1. It would likely be distributed in the next
release, which has not yet been scheduled.
>
> That being said, I could take a look at the code to see how
difficult it would be to dump out those points. If it's easy, I could
probably add it and send you a patched file. If it's more involved,
> it'd have to wait until the next release.
>
> Thanks,
> John
>
> On 01/06/2014 12:46 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>
>> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>
>> Hi John,
>>
>> I am interested un both. I would like to have access to the convex
hull points of cluster objects and individual simple objects.
>>
>> Do you knew how long it will take to implement this functionality
in the code?
>>
>> Thanks
>> Anna-Belle
>>
>> -----Message d'origine-----
>> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
>> Envoyé : 6 janvier 2014 13:54
>> À : Filion,Anna-Belle [Montreal]
>> Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
>>
>> Anna-Belle,
>>
>> The convex hull points are not currently included in the output of
MODE. However, as you mention, the boundary points are in the NetCDF
output file.
>>
>> As for the convex hulls, really there are two options. Convex
hulls are computed for the individual (or what we call "simple")
objects in both fields. Those convex hulls are used in the
computation
>> of fuzzy logic interest values. Then matching/merging is
performed, which results in the groups of objects (or what we call
"cluster" objects) being defined. The convex hulls shown in the
postscript
>> output file are drawn around the matched clusters of objects. If
you look closely, you'll see that there are no convex hulls drawn
around unmatched objects since they are not part of any matched
>> cluster object.
>>
>> Are you interested in seeing the convex hulls which are drawn
around the individual "simple" objects or the ones drawn around the
matched "cluster" objects? Or both?
>>
>> Once we define this, I can create a development task to add this
functionality to the next version of MET.
>>
>> Thanks,
>> John Halley Gotway
>> met_help at ucar.edu
>>
>> On 12/30/2013 03:37 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>>
>>> Mon Dec 30 15:37:29 2013: Request 64753 was acted upon.
>>> Transaction: Ticket created by anna-belle.filion at ec.gc.ca
>>> Queue: met_help
>>> Subject: Convex hull
>>> Owner: Nobody
>>> Requestors: anna-belle.filion at ec.gc.ca
>>> Status: new
>>> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>>
>>>
>>> Hi,
>>>
>>>
>>>
>>> I have been using MODE and MODE-Analysis for my forecast
verification.
>>>
>>>
>>>
>>> At this point, we are investigation a way to display the forecast.
We
>>> want to display the raw gridded forecast, but also display some
object
>>> information computed by MODE.
>>>
>>>
>>>
>>> So, we have a gridded forecast on which we use the MODE tool to
merge
>>> forecast objects that are close enough. What we would like to
display is
>>> the raw forecast with the overlying convex hulls computed by MODE.
In
>>> the netCDF file I can find the points for each object boundary,
but
>>> can't find the points of the convex hull. Where can I find the
points of
>>> each convex hull?
>>>
>>>
>>>
>>> Thanks
>>>
>>> Anna-Belle Filion
>>>
>>>
>>>
>>
>>
>
>
------------------------------------------------
Subject: RE: [rt.rap.ucar.edu #64753] Convex hull
From: Filion,Anna-Belle [Montreal]
Time: Mon Jan 13 11:05:07 2014
Hi John,
Yes, this is perfect!
Thanks a lot!
Anna-Belle
-----Message d'origine-----
De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
Envoyé : 9 janvier 2014 16:39
À : Filion,Anna-Belle [Montreal]
Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
Anne-Belle,
I've attached a tar file that contains 4 updated files (met_file.h/.cc
and nc_utils.h/.cc). You can place this in the top-level METv4.1
directory and extract it:
tar -xvzf METv4.1_patch_for_anna_belle.tar.gz
And then recompile METv4.1.
When you run MODE, you should notice many more variables in the NetCDF
object files. I tweaked the naming convention of the existing
variables to be consistent with the new ones. You'll now see data for
6 different polyline types:
- Forecast and Observation Simple Boundary objects (fcst_simp_bdy
and obs_simp_bdy)
- Forecast and Observation Simple Convex Hull objects
(fcst_simp_hull and obs_simp_hull)
- Forecast and Observation Cluster Convex Hull objects
(fcst_clus_hull and obs_clus_hull)
Please take a look and let me know if this is what you were looking
for.
We'll plan to add these changes in to the next release of MET.
However, we want to make their output optional via the MODE
configuration file.
Thanks,
John Halley Gotway
On 01/06/2014 02:29 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>
> Hi John,
>
> Yes I am using the latest version 4.1.
>
> Ok. Just let me know the solution you choose after analysing the
code and the approximate deadline of a patch if this is a possible
solution.
>
> Thanks
> Anna-Belle
>
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé : 6
> janvier 2014 16:13 À : Filion,Anna-Belle [Montreal] Objet : Re:
> [rt.rap.ucar.edu #64753] Convex hull
>
> Anna-Belle,
>
> Can you tell me what version of MET you're using? Is it METv4.1,
the most recent one?
>
> Since this is an enhancement and not a bugfix, we wouldn't release
it as a patch to METv4.1. It would likely be distributed in the next
release, which has not yet been scheduled.
>
> That being said, I could take a look at the code to see how
difficult
> it would be to dump out those points. If it's easy, I could
probably add it and send you a patched file. If it's more involved,
it'd have to wait until the next release.
>
> Thanks,
> John
>
> On 01/06/2014 12:46 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>
>> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>
>> Hi John,
>>
>> I am interested un both. I would like to have access to the convex
hull points of cluster objects and individual simple objects.
>>
>> Do you knew how long it will take to implement this functionality
in the code?
>>
>> Thanks
>> Anna-Belle
>>
>> -----Message d'origine-----
>> De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé :
6
>> janvier 2014 13:54 À : Filion,Anna-Belle [Montreal] Objet : Re:
>> [rt.rap.ucar.edu #64753] Convex hull
>>
>> Anna-Belle,
>>
>> The convex hull points are not currently included in the output of
MODE. However, as you mention, the boundary points are in the NetCDF
output file.
>>
>> As for the convex hulls, really there are two options. Convex
hulls
>> are computed for the individual (or what we call "simple") objects
in
>> both fields. Those convex hulls are used in the computation of
fuzzy
>> logic interest values. Then matching/merging is performed, which
results in the groups of objects (or what we call "cluster" objects)
being defined. The convex hulls shown in the postscript output file
are drawn around the matched clusters of objects. If you look
closely, you'll see that there are no convex hulls drawn around
unmatched objects since they are not part of any matched cluster
object.
>>
>> Are you interested in seeing the convex hulls which are drawn
around the individual "simple" objects or the ones drawn around the
matched "cluster" objects? Or both?
>>
>> Once we define this, I can create a development task to add this
functionality to the next version of MET.
>>
>> Thanks,
>> John Halley Gotway
>> met_help at ucar.edu
>>
>> On 12/30/2013 03:37 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>>
>>> Mon Dec 30 15:37:29 2013: Request 64753 was acted upon.
>>> Transaction: Ticket created by anna-belle.filion at ec.gc.ca
>>> Queue: met_help
>>> Subject: Convex hull
>>> Owner: Nobody
>>> Requestors: anna-belle.filion at ec.gc.ca
>>> Status: new
>>> Ticket <URL:
>>> https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>>
>>>
>>> Hi,
>>>
>>>
>>>
>>> I have been using MODE and MODE-Analysis for my forecast
verification.
>>>
>>>
>>>
>>> At this point, we are investigation a way to display the forecast.
>>> We want to display the raw gridded forecast, but also display some
>>> object information computed by MODE.
>>>
>>>
>>>
>>> So, we have a gridded forecast on which we use the MODE tool to
>>> merge forecast objects that are close enough. What we would like
to
>>> display is the raw forecast with the overlying convex hulls
computed
>>> by MODE. In the netCDF file I can find the points for each object
>>> boundary, but can't find the points of the convex hull. Where can
I
>>> find the points of each convex hull?
>>>
>>>
>>>
>>> Thanks
>>>
>>> Anna-Belle Filion
>>>
>>>
>>>
>>
>>
>
>
------------------------------------------------
Subject: Re: [rt.rap.ucar.edu #64753] Convex hull
From: John Halley Gotway
Time: Tue Jan 14 16:11:42 2014
Anna-Belle,
Great. Glad to hear it. I'll include these changes in the trunk so
that they show up in the next release.
Thanks,
John
On 01/13/2014 11:05 AM, Filion,Anna-Belle [Montreal] via RT wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>
> Hi John,
>
> Yes, this is perfect!
>
> Thanks a lot!
> Anna-Belle
>
>
> -----Message d'origine-----
> De : John Halley Gotway via RT [mailto:met_help at ucar.edu]
> Envoyé : 9 janvier 2014 16:39
> À : Filion,Anna-Belle [Montreal]
> Objet : Re: [rt.rap.ucar.edu #64753] Convex hull
>
> Anne-Belle,
>
> I've attached a tar file that contains 4 updated files
(met_file.h/.cc and nc_utils.h/.cc). You can place this in the top-
level METv4.1 directory and extract it:
> tar -xvzf METv4.1_patch_for_anna_belle.tar.gz
>
> And then recompile METv4.1.
>
> When you run MODE, you should notice many more variables in the
NetCDF object files. I tweaked the naming convention of the existing
variables to be consistent with the new ones. You'll now see data for
6 different polyline types:
> - Forecast and Observation Simple Boundary objects (fcst_simp_bdy
and obs_simp_bdy)
> - Forecast and Observation Simple Convex Hull objects
(fcst_simp_hull and obs_simp_hull)
> - Forecast and Observation Cluster Convex Hull objects
(fcst_clus_hull and obs_clus_hull)
>
> Please take a look and let me know if this is what you were looking
for.
>
> We'll plan to add these changes in to the next release of MET.
However, we want to make their output optional via the MODE
configuration file.
>
> Thanks,
> John Halley Gotway
>
> On 01/06/2014 02:29 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>
>> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>
>> Hi John,
>>
>> Yes I am using the latest version 4.1.
>>
>> Ok. Just let me know the solution you choose after analysing the
code and the approximate deadline of a patch if this is a possible
solution.
>>
>> Thanks
>> Anna-Belle
>>
>>
>>
>> -----Message d'origine-----
>> De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé :
6
>> janvier 2014 16:13 À : Filion,Anna-Belle [Montreal] Objet : Re:
>> [rt.rap.ucar.edu #64753] Convex hull
>>
>> Anna-Belle,
>>
>> Can you tell me what version of MET you're using? Is it METv4.1,
the most recent one?
>>
>> Since this is an enhancement and not a bugfix, we wouldn't release
it as a patch to METv4.1. It would likely be distributed in the next
release, which has not yet been scheduled.
>>
>> That being said, I could take a look at the code to see how
difficult
>> it would be to dump out those points. If it's easy, I could
probably add it and send you a patched file. If it's more involved,
it'd have to wait until the next release.
>>
>> Thanks,
>> John
>>
>> On 01/06/2014 12:46 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>>
>>> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>>
>>> Hi John,
>>>
>>> I am interested un both. I would like to have access to the convex
hull points of cluster objects and individual simple objects.
>>>
>>> Do you knew how long it will take to implement this functionality
in the code?
>>>
>>> Thanks
>>> Anna-Belle
>>>
>>> -----Message d'origine-----
>>> De : John Halley Gotway via RT [mailto:met_help at ucar.edu] Envoyé :
6
>>> janvier 2014 13:54 À : Filion,Anna-Belle [Montreal] Objet : Re:
>>> [rt.rap.ucar.edu #64753] Convex hull
>>>
>>> Anna-Belle,
>>>
>>> The convex hull points are not currently included in the output of
MODE. However, as you mention, the boundary points are in the NetCDF
output file.
>>>
>>> As for the convex hulls, really there are two options. Convex
hulls
>>> are computed for the individual (or what we call "simple") objects
in
>>> both fields. Those convex hulls are used in the computation of
fuzzy
>>> logic interest values. Then matching/merging is performed, which
results in the groups of objects (or what we call "cluster" objects)
being defined. The convex hulls shown in the postscript output file
are drawn around the matched clusters of objects. If you look
closely, you'll see that there are no convex hulls drawn around
unmatched objects since they are not part of any matched cluster
object.
>>>
>>> Are you interested in seeing the convex hulls which are drawn
around the individual "simple" objects or the ones drawn around the
matched "cluster" objects? Or both?
>>>
>>> Once we define this, I can create a development task to add this
functionality to the next version of MET.
>>>
>>> Thanks,
>>> John Halley Gotway
>>> met_help at ucar.edu
>>>
>>> On 12/30/2013 03:37 PM, Filion,Anna-Belle [Montreal] via RT wrote:
>>>>
>>>> Mon Dec 30 15:37:29 2013: Request 64753 was acted upon.
>>>> Transaction: Ticket created by anna-belle.filion at ec.gc.ca
>>>> Queue: met_help
>>>> Subject: Convex hull
>>>> Owner: Nobody
>>>> Requestors: anna-belle.filion at ec.gc.ca
>>>> Status: new
>>>> Ticket <URL:
>>>> https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=64753 >
>>>>
>>>>
>>>> Hi,
>>>>
>>>>
>>>>
>>>> I have been using MODE and MODE-Analysis for my forecast
verification.
>>>>
>>>>
>>>>
>>>> At this point, we are investigation a way to display the
forecast.
>>>> We want to display the raw gridded forecast, but also display
some
>>>> object information computed by MODE.
>>>>
>>>>
>>>>
>>>> So, we have a gridded forecast on which we use the MODE tool to
>>>> merge forecast objects that are close enough. What we would like
to
>>>> display is the raw forecast with the overlying convex hulls
computed
>>>> by MODE. In the netCDF file I can find the points for each object
>>>> boundary, but can't find the points of the convex hull. Where can
I
>>>> find the points of each convex hull?
>>>>
>>>>
>>>>
>>>> Thanks
>>>>
>>>> Anna-Belle Filion
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
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