### ArcGIS Model Builder: How to Create a Custom Toolbox and Export as a Python Script

This example explains how to use model builder in ArcGIS. We show you how to create custom toolboxes and export models as Python scripts.

### Bilinear Interpolation: Resample Image Cell Size with 4 Nearest Neighbors

Bilinear interpolation (or blinear resampling) uses 4 nearest neighbors to generate an output surface when you resample or reproject GIS data.

### Distance Decay: How Far Are You Willing to Travel?

Distance decay is the idea that the farther away customers are from goods or services, the less likely they will make use of it.

### Line of Sight vs Viewshed: Visibility Analysis

While line of sight determines obstructed and unobstructed on a line, a viewshed dictates surrounding areas as visible or non-visible from an observer POV.

### How to Export a Shapefile Table to Excel Spreadsheet in ArcGIS

If you use ArcGIS 10.2 and above, you can use the “Table to Excel” tool to convert a shapefile table to Excel spreadsheet & export field aliases / subtypes

### Georeferencing: Rubbersheet with Control Points

Learn how to georeference with precision in this georeferencing guide. Add control points in two images, select a transformation and check your RMSE.

### Confused With Conflation? Let’s Clean Up the Mess with Conflation Examples.

When you have two conflicting data sets, conflation resolves conflicts by preserving the most accurate one. Edgematching and rubbersheeting helps fix errors

### Kriging Interpolation – The Prediction Is Strong in this One

The prediction is strong in kriging. In this guide to geostatistics we embark on a journey to sculpt a legendary prediction model with kriging interpolation

### What Do Contour Lines on a Topographic Map Show?

A contour line has constant values on it such as elevation. But it’s also used in meteorology (isopleth), magnetism (isogon) & even drive-time (isochrones)

### Death, Taxes and the Esri ArcGIS 999999 Error

Some things in life are certain. In ArcGIS, it’s the Esri 999999 error. Here are some techniques to troubleshoot this ArcMap error and put it to rest.