All blog posts
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A World of Projection Distortions
We discuss common map projections and projection distortions.
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A World of Projection Distortions
We discuss common map projections and projection distortions.
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Evolution of GIS Attribute Data from Collection to Cleaning
Step by step guide to prepping GIS attribute data, from data collection to cleaning, in the context of an Azavea Summer of Maps project completed for the Pennsylvania Horticultural Society.
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Five Technology Trends Every Nonprofit Needs to Know
We sought to identify 5 actual technology trends (not just buzz) that will have a significant impact on the nonprofit sector.
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How to Manipulate Big Data for Use in ArcMap
How to use the open source program PGAdmin to prep large data sets for use in ArcMap.
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Efficient Delegation Using the Objective C Reflection API
In this post we describe how to replace boilerplate delegation methods with two methods using the reflection API of Objective C.
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Using Raster Analysis in ArcMap to Create a Normalized Weighted Risk Index
Learn how to conduct a raster analysis in Esri Arcmap to create a normalized weighted risk index, explained in the context of an Azavea Summer of Maps project completed for the Delaware Valley Association for the Education of Young Children.
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Announcing VDD Core
In this post we roll out VDD Core, a Clojure open source library.
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Accounting for Uncertainty with Empirical Bayes Smoothing
In this blog, we describe our experience accounting for uncertainty with empirical bayes smoothing.
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The Homelessness Analytics Application: Access to Hundreds of Homelessness Indicators Nationwide
In this post, we feature a new homelessness analytics application that provides access to hundreds of homelessness indicators nationwide
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Using GTFS Data to Generate Bus Routes with Travel Time
We outline our work on a tool that allows the DPRโs GIS department to input the type of recreation (such as playgrounds, basketball courts, swimming pools, etc.), buffer around those locations and summarize the population within those buffers using GTFS data.
