I built a web map viewer for the PISCES California fish species range data. The data is served by ArcGIS Server and the viewer is a mix of a coworker’s custom map viewer that uses the ArcGIS API and site-specific javascript coded by me. Launch the Map Viewer


This week, I needed to convert a number of polygon feature classes to raster. Some of these feature classes included large numbers of features that were small relative to the cell size of the raster. Because of this, they wouldn’t get captured at all in the conversion to raster using ArcGIS’ Polygon to Raster tool,

PISCES Software

PISCES is a set of ArcGIS tools and data for managing and analyzing the ranges of California’s 133 native fish taxa. Data is stored as a standard relational database, increasing the power over many typical GIS approaches, and allowing for a powerful mapping component that summarizes species presence information on the basis of factors such


Had a couple interesting problems to solve today that I thought I’d note here. One was with a Python library not getting loaded correctly, and the other with some bulk email for a client going to spam. These are as much notes for me as for anyone else, so no guarantees on my writing quality