Latest Contributions by StevenAalbers

Hi all: There is likely another method to perfor this task this already so I appreciate any help or ideas offered.  I am often asked to find points at a certain distance upstream from a surface water intake.  Rather than look at each buffer around each intake manually, I am looking for a method to generate a semicircle of a known radius with its center at the intake and, once generated, align the semicircle's perpendicular radius to the upstream direction in the NHD flowlines. Then a simple select by location can be used. Right now, I use a set buffer size on the intake points which gives me a conservative distance on the stream. But, I end up looking at each buffer individually so I can identify if the outfall is upstream or downstream.  So far this is the method I have explored: 1) generate the buffer around the intake, 2) use the Split Tool to generate four quadrants, 3) delete the bottom half of the semicircle, manually rotate the semicircle tothe upstream direction. I tend to look at upwards of 200 intakes; a simpler or automated method would be great! I have attached a JPG image with my simplified approach. ... View more

After exhausting my ideas I need advice.  I am using ArcInfo 10.1 (with a concurrent license over a network).  I add a shapefile to my project which needs some attribute editing.  I start the Editor and open the Attributes window.  But the window is blank except for two box lines.  I have tried the same method on two other machines (both with stand alone licenses) with the same results.  I uninstalled and reinstalled ArcGIS 10.1 but the results remain the same. I have tried the attributes editor from both a shapefile and and a geodatabase feature class; same results. I am baffled.  Any else experiencing this?   I have attached an example. Help! ... View more

I have an MXD that exhibits an odd behavior.  I created and save a map document (no items are selected) and closed the document.  The next time I opened the MXD the legend, scale bar, scale text, and north arrow appear as selected.  I clear the selections, save the document again and close it.  The next time I open it up the same items are selected again.  Thinking something was corrupted, I rebuilt the MXD from scratch and the same thing happens again.  I uninstalled ArcGIS10 and reinstalled (with SP3) and the same issue continues to happen.  Is anyone else experiencing this anomaly? ... View more