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  • 0 posts edited
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  • 107 votes cast
Jan
28
revised Why does GPS not give any info before it has a fix?
improved formatting
Jan
28
revised Why does GPS not give any info before it has a fix?
Added more information and discussion.
Jan
27
answered Why does GPS not give any info before it has a fix?
Jan
19
comment Snapping polygons edges within the same shapefile
What software and version are you using? Are you looking for an automated or manual method? How many polygons are you looking at?
Jan
14
comment Using Maplex, how do you keep labels from overlapping a non-labeled layer?
The weight scale is 0-1000. Try putting the rivers at 1000 (max) and see if that does anything. If it still doesn't work, you might want to try the Standard labeling engine, because it has labeling and feature weights.
Jan
5
comment Calculate z score into new field in ModelBuilder?
You can use Summary Statistics with vector data to get your Mean and SD for your three fields. Then you can add other fields and calculate z scores on the statistics results. All of that can be incorporated in Modelbuilder or Python.
Dec
2
answered Polygon construction Do's and don'ts Advice?
Dec
2
comment Polygon construction Do's and don'ts Advice?
It's better, but still confusing. Is the Private land area in your picture just empty space, or is it a polygon that is in the Forest layer but attributed differently? If it is empty space, I would use Clip to stop the Fire perimeter at the Forest boundary. If it's a polygon, I would definition query the Private land out and run Clip. I don't understand why you want to use construct polygons at all.
Dec
2
comment Polygon construction Do's and don'ts Advice?
I'm not sure exactly what you are asking. So, you want to create some polygons that will be used as an erase layer on the Forest and Fire Perimeter layers? How do you plan on delineating the erase polygons? You said something about non-forest, but I don't know how you are determining that. Anything within the Fire Perimeter layer that doesn't intersect the Forest layer? Really need some clarification and details to be able to answer this question better.
Dec
2
comment How to create a reservoir for a dam site?
They aren't formed in 10.3 either. That's why I said convert it to a polygon in my last sentence. There are tools and methods available to convert polylines to polygons that don't require an Advanced license if that is an issue. The real benefit to this tool is that you can experiment with different dam heights all at once to see how it affects reservoir surfaces.
Dec
1
revised How to create a reservoir for a dam site?
Added some tips.
Dec
1
answered How to create a reservoir for a dam site?
Dec
1
comment How to create a reservoir for a dam site?
Are you interested in the potential volume of the reservoir, or just the surface area? If you want the volume/capacity, you will need the 3D Analyst extension. There are three different tools in 3D Analyst for calculating volumes.
Nov
16
comment Excluding certain attributes from being labeled in ArcMap?
Are these dynamic labels or part of an annotation feature class?
Nov
13
comment What data projection should I use for area analyses in different countries at a global scale
You're going to want an equal area projection like Albers. Not sure what a good one is for the whole world.
Nov
13
comment Resourcing Geodatabase, automation
You're going to potentially have locking issues whether you use Model Builder or Python. The issue is the feature datasets, not the automation method. Personally, I would use a Python script for this. Then, you can set it up to run as a scheduled task if you want.
Nov
13
comment Resourcing Geodatabase, automation
Well, if you don't want to write a script, I think your only option is going to be Model Builder. You can use an Iterator to bulk delete the old feature classes and export in the new ones. Beware of schema locks since you are using feature datasets. If you are able, it may be easier to create six separate file geodatabases rather than using six feature datasets in one file geodatabase.
Nov
12
comment NAD 1983 Illinois State Plane- not projecting correctly
Were your CAD files originally created using that State Plane projection as the reference system? Where I work, we have had numerous issues with CAD drawings being created in 0,0 space with no reference to the real world, and it's a pain to get them in the right place. In contrast, I have also received drawings from Civil 3D that landed exactly where they were supposed to in ArcMap. Not sure how those drawings were set up, but if I set the data frame correctly, they dropped right in.
Nov
1
awarded  Yearling
Oct
20
comment Does a large amount of GPU memory help when working with very large images and image mosaics?
The GIS software I'm aware of that makes the most of GPU horsepower is Manifold GIS. I believe it supports up to four GPUs using Nvidia CUDA cores. It's also native 64 bit and will take advantage of both multi-core and multi-cpu configurations. Set up right, a Manifold machine can be a beast. Unfortunately, ArcGIS and QGIS are way behind in that regard. I don't know about PCI Geomatics.