Gnarly Core Mapper

[Jon Cole]

Hello!!

 

My first question actually concerns Gnarly Landscape Utilities 019. I am using this toolset to create 1) a core area polygon GIS file, and 2) a resistance raster GIS file, for use with the Linkage Mapper Toolset.

 

Using “Gnarly Resistance and Habitat Calculator” I successfully created both the Habitat and Resistance maps and it saved these files in a gdb called “scratchGDBHABITAT1.gdb” and “scratchGDBRESISTANCE1.gdb”.

 

To continue in “Gnarly Core Mapper” these files need to be in a Raster Grid format (as is the case in the demo). So I dropped each file from their original gdb to ArcMap. I then exported each as a GRID file to new location files called “Habitat” and “Resistance” to be used with “Gnarly Core Mapper”. I then added these locations to my Core Mapper Parameters excel sheet. However, each time I run “Gnarly Core Mapper” I receive this error message –

 

****Geoprocessing error. Details follow.****

Geoprocessing error on **line 146** of Core_Mapper.py :

Failed to execute. Parameters are not valid.

ERROR 000860: Input raster: is not the type of Composite Geodataset, or does not exist.

Failed to execute (GetRasterProperties).

 

Am I saving the files wrong?

 

Any help would be greatly appreciated.

 

Thank you so much,

 

Jon

[John Gallo]

Hi Jon,

It has been a while since I used Gnarly tools deeply. For starters, please send us the file paths of the two GRID input files.  Seems that it is not liking the path or raster type. Hopefully someone that is using the tool more frequently can comment.  Also, I'll be at ICCB so may be delayed.

Thanks,

John 

John Gallo, Ph.D.
Senior Scientist
Conservation Biology Institute
136 SW Washington Avenue, Suite 202
Corvallis, OR 97333
Remote Office: Inglenook, CA

Phone: 707.962.9078
Twitter: @johnagallo

Updates: Action Research Newsletter

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[Jon Cole]

Hello John,

Thank you so much for your quick response. Here are my file paths you requested...

D:\JonathanCole\CanadaMap1990\Habitat

D:\JonathanCole\CanadaMap1990\Resistance

D:\JonathanCole\CanadaMap1990\Outputs

and here are the file paths from the demo.... (I tried to make mine as similar as possible)

C:\Gnarly\CoreMapperDemo\habitat

C:\Gnarly\CoreMapperDemo\resistance

C:\Gnarly\output

As for my raster GRID files

they look like this (Habitat for example)...

and within the habvalues folder...

and within the info folder...

Whereas the demo habitat folder looks like this...

So, am I saving the file wrong?

Thank you so much for your help,

Jon

[John Gallo]

Hi Jon,

I would examine those files in arc Catalog, not windows explorer.  and if they look fine there, maybe do a few calculations on them to be sure, especially on the one tha is causing the error.  

Thanks,

John

[Jon Cole]

Hello John,

 

It turns out that the problem was that my folder names were different from my file names - and the program didn’t seem to like that at all! lol. Once I corrected this - it worked perfectly. I have since gone on to perform a test run in Linkage Mapper on my study area using the core area and resistance layers created in Gnarly Resistance and Habitat Calculator and Gnarly Core Mapper - and that too seems to have worked perfectly as well.

 

Thank you very much for your help,

 

Jon

[John Gallo]

Hi Jon,

That is great!  You're welcome.  And thanks so much for remembering to circle back and give us an update.

Cheers,

John

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Linkage Mapper ›

Cell Size Inconsistency 5 publicaciones de 3 autores

Brielle Kwarta

5 de mar.

Traducir el mensaje al español  

Hi!

I am currently running linkage mapper and the cell size for my cost raster is 120m by 120m. However, the linkage mapper output is giving me a cell size of around 36m by 36m.  

Has anyone had this problem before? If so, what did you do to overcome this issue?

Thanks!

Brielle 

John Gallo

5 de mar.

Traducir el mensaje al español  

Hi Brielle,

I have never had that problem, has anyone else out there?

I can speculate a bit though. for the running of any tool in ArcGIS, you have the ability to override the default environmental settings (in this case the output cell size = to the input cell size).  Perhaps that is happening somehow in your case.  If your tool is on a modelbuilder model, you can check the environmental settings of the model, or of the tool step itself.

If that is not the case, I can brainstorm other ways of troubleshooting if you like, just let me know.

And again, has anyone else come across this issue?

Thanks,

John

- mostrar texto citado -

Brielle Kwarta

5 de mar.

Traducir el mensaje al español  

I realized that there was an issue with the units and the cost raster was 120ft by 120ft which is equivalent to about 36m. 

Thanks for the help!

Brielle 

- mostrar texto citado -

John Gallo

24 de abr.

Traducir el mensaje al español  

You're welcome! Thanks for the follow up!  Good luck with all.

- mostrar texto citado -

BG

10:52 (hace 4 horas)

Error Linkage Mapper

Traducir el mensaje al español  

Hello John! I am trying to join two polygons with Linkage Mapper. I am working with Arcmap 10 and 10.5 since I am trying two different computers but it takes a long time and does not finish running the analysis. When I tried to do it for a smaller area I could run the analysis. One of the times I tried it, he gave me an error message saying that the problem was running CostAllocation.
Thank you so much! 

Executing: MapLinkages C:\Hoy LLaPA Core_ID slope_extrac1 true true "Cost-Weighted & Euclidean" # true true false 4 Cost-Weighted true true true 200000 # # # # #
Start Time: Mon Sep 02 14:38:24 2019
Running script MapLinkages...
---------------------------------
A record of run settings and messages can be found in your log directory:
C:\Hoy\run_history\log
---------------------------------
 

********************************************************
NOTE: Linkage Mapper tools often work best when run  from ArcCatalog instead of ArcMap.


Linkage Mapper Version 2.0.0
on ArcGIS desktop 10.0 Service Pack N/A
Setting data frame spatial reference to that of core area feature class.
 
---------------------------------
Starting at step 1.

Making temporary copy of resistance raster for this run.

Making temporary raster of core file for this run.
 
---------------------------------
Running script s1_getAdjacencies.py
Adjacency files will be written to C:\Hoy\datapass\adj

Calculating cost-weighted distance adjacency
Starting cost-weighted distance allocation...
Processing cell size: 17.3868932064809