Tableau Data Utility

Objective: Making Tableau users' lives easier in data preparation for data visualisation

View app demo (Note that the Heroku site has been sunset.)

General Functionalities

• Input user's data file(s)
• Export of generated transformed data files

1. Generate Network Graph Data for Tableau

Adjustment specific position of nodes to alter network graph layout
Demo:

Before Adjustment:


After Adjustment:

Adjustment of d3 network graph layout parameters: size distance strength collide

More information found at Leverage on D3.js v4 to build a Network Graph for Tableau with ease

2. Generate Spatial Data for Tableau

Map Polygons in Tableau with CSV Output File:

Transform GeoJSON to CSV to visualise mixed-geometry types in Tableau in a single setting:

Convert spatial files SHP & KML to GeoJSON format:

More information found at Underrated Combined Functionalities of Tableau — Point, LineString & Polygon Mapping

3. Import Custom Map Image for Tableau

Export required basemap with coordinates auto-generated:

Input basemap image and coordinates:

Basemap has been imported into Tableau:

More information found at How to Plot a Custom Map Image on Tableau Dashboard in just 3 Easy Steps - No calculations required.

4. Generate Hex Maps Data for Tableau

Toggle Parameters for Hex Map generated by final GeoJSON output:

Output GeoJSON file rendering Hex Maps:

Convert spatial files SHP & KML to GeoJSON format:

More information found at Generate Hex Maps from your existing Spatial Data in less than 3 steps