Creating the TouchTracker Application

Now let’s get started with your application. In Xcode, create a new single view universal project and name it TouchTracker (Figure 18.2).

Figure 18.2  Creating TouchTracker

Setup for the creation of the TouchTracker application is shown.

In building TouchTracker, you are going to use the default view controller and the storyboard that the template created. For its view and model layers, you are going to create a custom view class and a custom structure. Figure 18.3 shows the major pieces of TouchTracker.

Figure 18.3  Object diagram for TouchTracker

Object Diagram illustrating the relationship between the class Line and the DrawView.

Let’s begin with your custom struct.

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