Latest Contributions by DarrenWiens2

‎03-14-2012

Besides the fact that modern versions of Excel can't save .dbfs (at least back to Office2007), you are just asking for trouble modifying a shapefile outside of GIS software.

‎03-14-2012

Rather than reinvent the wheel, why not just right-click the Clip tool, choose Batch, and drag and drop what you need? edit: if you've got your heart set on using, or have a reason to use, Python, reply.

‎03-12-2012

I'd forget about ModelBuilder. This is what Data Driven Pages are for (with ArcGIS 10). If you have 9.3, use DS MapBook.

‎03-12-2012

This is probably oversimplistic, but can't you make contours of your DEM and extract the contour line you're interested in? It seems to me that your floodplain polyline should all fall at one elevation, but this may not be the case...

‎03-09-2012

OK, at least I'm not going crazy. It seemed to work for all of the segments outside of polygons. Luckily, I only have 3 slope class (high, medium, low) so I was able to spatial select/field calculate the lines inside.

‎03-09-2012

I've got stream reaches and basins. The basins have a mean slope class which I need to transfer to the stream reaches. Some stream reaches are outside the basin feature class, so those reaches need the closest basin's attributes. Any ideas why the output of my Spatial Join (target features: reaches, join features: basins, join operation JOIN_ONE_TO_ONE, keep all target features: true, match option: closest, search radius: blank, distance field name: blank) turns out like the attached image? Both basins and reaches are colored by slope class. edit: Could it be something to do with trying to join 20,000 basins to 250,000 stream reaches? Is there a limit to how many shapes are considered in a Spatial Join?

‎02-27-2012

The above script only reads the domains. The domains with underscore numbers seem to be duplicates, which would indicate that there is a problem in how you're writing the domains. ps - it's much easier to read your code if you wrap them in the provided tags, above the post text box.

‎02-27-2012

You can rotate feature symbols in the symbol properties, if that's what you're asking.

‎02-27-2012

I assume most of the problems you see are due to how it decides which direction to draw the line - it places a random point within a meter of the original point, then connects it perpendicularly to the line. If the random point falls exactly on the line, it can't calculate which direction to draw the line, so it draws horizontally. I used this to create about 10,000 new lines and had to manually change about 100. If I needed higher accuracy than 1m or if it drew many more horizontal lines, I would probably change it, but I don't so I won't.

‎02-24-2012

Did you choose Python as the parser?

‎02-24-2012

Oops, didn't see you needed it to be justified (seems odd though - this ensures your labels and patches are as far apart as possible. I'm sure you've got your reasons, though, or following some archaic oil & gas protocol). As far as I know, converting to graphics is probably the only way to do it. Also, and not ideal by any means, if you could get away with leaving the labels at a static place on the left and the patches at a static place on the right, you could create two separate legends and just leave them there (one for labels, one for patches).

‎02-24-2012

Off the top of my head, I'd combine your coincident points beforehand (ie. calculate the mean value, or whatever other statistic/weighting, with Summary Statistics, or Python, group by coordinates), then interpolate those values. Whether or not that has geostatistical implications, I don't know.

‎02-24-2012

Won't the above code result in an empty string, every time? Instead: def FedRoute(tvalue, shield): if tvalue == 'INT': return str(shield) elif tvalue == 'US': return str(shield) FedRoute(!HWY_Type!, !SHIELD_VAL!)

‎02-24-2012

Out of curiosity, I clicked "Right to Left Reading" on the "Legend" tab in "Legend Properties" (after placing labels to the left of the patches), and this aligned the patches on the right. Since I don't know exactly what other consequences this has, I take no further responsibility.

‎02-23-2012

I used the "iterate feature selection" iterator to select each different cell, but then I don't know what tool I should use to extract/export each cell selection as a new layer. From the Iterate Feature Selection help page: "The output Selected Features is a feature layer and can be used in other geoprocessing tools that accept a feature layer in ModelBuilder." This is all totally untested, but it sounds like you should be able to hook up the Selected Features bubble to Extract By Mask (to get only those raster cells), then to Band Collection Statistics, then append the resulting table to a master table (or else you'll have 4000 tables).

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Date Last Visited	‎07-15-2023 12:11 AM

My Ideas

Latest Contributions by DarrenWiens2

Re: Import Shapefile Data into Excel?

Re: ArcGIS 10 Batch Clip

Re: using modelbuilder to generate maps

Re: Buffer by elevation

Re: Spatial Join not working

Spatial Join not working

Re: Script Adding Numbers to End of Domains?

Re: Stop Symbols from Ratating with Map

Re: Perpendicular transects at regular intervals

Re: Need Help with Python Syntax

Re: Legend Patch Alignment

Re: Interpolating with multiple values for each x,y coordinate

Re: Need Help with Python Syntax

Re: Legend Patch Alignment

Re: How can I extract all cells from a fishnet into their own cells?

Re: Select/Delete Polygons that are surrounded by ...

Re: Model Builder Iterator to calculate value of f...

Re: Check if any features are selected

Re: Check if any features are selected

Re: IAM s3 permissions for registering cloud data ...

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