What Option Do I have ?

Fun at work !

ArcMap has stopped working

NLCD 2006 to GRID

This has bitten me twice now so I figured I should write about it to help me remember. It involves the error “ERROR 010240: Could not save raster dataset to”. I got this error everytime I tried to save a GRID from the NLCD 2006 img file. I found the following link that explained a lot.


I'm still struggling with this so I may edit this post later if/when I discover more about it but the link will let you know that its not just you.

In Case they take this page down, here are the steps

USGS, creator of the NLCD data, provides the following workaround.

1. In ArcMap

Pasting Features from one layer to another in ArcMap

I'm sure most everyone knows how to do this but being old school (ArcInfo) I still get a kick out of some of the editing features in the newer (9.3) software. I really should be trying out version 10 but I might be overwhelmed.

I get a kick out of the ability to paste features from one layer to another. I've been digitizing a lot lately for a project. Here is how it works. In an edit session, clear all selections, then select the features you want to copy (in the from layer). Set target layer to the one you want to paste into. Open the from layer's attribute table and go to Edit - Copy. Then open the to layer's attribute table and go to Edit - Paste.

Hurricane Irene’s Birth, Death Seen From Space

A little late but thought this was cool
Seen at Very Spatial via Wired.

Excel wants to express a number stored as a string in scientific notation

Ah the weirdness never ends. I needed to preserve a big long number as a string (a census data value as fips state, fips county, tract number, and block number). Excel apparently wants to keep it in scientific notation even though I am pasting values from a number formatted as an integer. I found a way to get it to work here so I wanted to book mark this somehow.

First night of class

Tonight starts the GIS 101 class again. I always like the beginning of the semester when fresh minds are exposed (often for the first time) to GIS. Hopefully I won't begin to burn them out until the very end of the semester at the earliest. We are just going over the very basics of the software tonight (zooming and panning, the magnifier view (does anyone really use that ?), basics of layers and symbology). Later in the semester we will do some simple selections, more advanced symbology (quantiles), tabular joins etc. Then even later we will try some editing, and geocoding. Then near the very end we start in on spatial operations like clip, union, intersect etc. and then I'll have them do a project. Hopefully some of the students will take to this.

Excel Column Chart Weirdness and Workaround

Ok If I really wanted control over my graphs, I'd be using "R" (but I haven't installed it yet). Instead I'm using Excel 2007 at work today and I'm trying to make a column chart with labels on the X axis. The values on the X axis are numeric. The problem is if I create the chart just using the y data, it doesn't know what x is so it just numbers them 1 through n. If I select both columns it treats them both as data. Even formatting the cells as text didn't work. Typing the numeric values in as alphanumeric (i.e. one, two, three, four etc.) works !


As a follow up to my post about the conference, I decided to recap my experiences at the conference this year.

What I'm talking about

So this summer I had the pleasure of attending my 3rd ever ESRI International User's Conference in San Diego California. My first Conference was in July, 2001 and my second was in August, 2004 In 2004 I entered the Applications Fair with my VB6 version of the Watershed Characterization and Modeling System (WCMS) most of which, my colleagues Mike and Jackie Strager developed previously in Avenue.

The Power of the Calculate Tool

Just a little curiosity I discovered today. I've been working with a Python script that has some problems calculating a field using an expression. I figured out that the problem was the syntax used in the expression is treating a variable as if it were a field in the feature class (but it is not a field). This was obvious to me because the variable in the expression is surrounded by Python decode field characters (the exclamation mark).

Anyway my search landed me on this page.

ESRI Conference 2011

I'm excited to say that I'll be attending the ESRI User's Conference again this year (my 3rd ever). I'm presenting on Tuesday afternoon. The presentation is on research I'm doing with Dr. Brosi at Frostburg State University with Black Cohosh and American Bugbane (two plants that grow in the Central Appalachians). We have been looking at factors that affect flowering and we are also doing a risk of discovery evaluation (e.g. vulnerability to harvest).

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