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In this lecture, we are going to look into the drawing curved lines using the SIN() Function. We will use Data Densification, Table Calculations and the SIN() function to draw this data visualisation. This lecture will help cement our knowledge on the techniques presented.

There is some contention and disagreements about the use of bespoke data visualisations, and we will discuss the pros and cons of bespoke data visualisations, when to use them, and more importantly, when not to use them.

GitHub is a Git repository hosting service, but it adds many of its own features. While Git is a command-line tool, GitHub provides a Web-based graphical interface. It also provides access control and several collaboration features, such as a wikis and basic task management tools for every project.

Gulp is an open-source JavaScript toolkit used as a streaming build system in front-end web development. We will leverage Gulp to automate our various build tasks such as Obfuscation, Minifying our files, SCSS to CSS compilation.

Using our prepared data source, we are going to draw our the first segments of our Sunburst chart so that we have a basic understanding of the mechanics. This is always the important first step as we will very quickly see if this is going to be fit for purpose.

This course does require a basic understanding of programming; if you are new to programming or need a refresher course, I would highly recommend spending time to go through the following tutorials

Http Server is a development server with live reload capability. We will use it for testing our extension before deploying.

In this section, we are going to develop our first Tableau Extension, although, it will not do much for now, we will build our skeleton and make use of all the installed applications, tools and packages.

If you prefer following written instructions to set up your environment, this is for you. If you prefer video tutorials the rest of this section will cover your environment setup.

At this point we have installed various applications, tools and packages. In the next section, we will be putting this to work and developing our first Tableau Extension.