Welcome to Layerscape. Session A. Motivation. Why should a Researcher be interested? Let’s assume that you want to do something around data visualization that goes beyond cool and arrives at useful Why should an educator be interested?
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For these formulas and any that follow: You may wish to cut the text from this PowerPoint presentation and paste it into the appropriate cell in an Excel spreadsheet. To paste: Right-click the destination cell and select Match Destination Formatting (M).
Select cells B2 through H2:
Double-click the little box at the lower right of the highlighted cells.
How the Excel Add In for WWT works, in three steps:
The next slides walk you through this process.
How it looks
You may need to manipulate the perspective to see your data (a sequence of white dots). Excel tries to take you to the first data point, which is west of Greenland.
Notice that in the Layer Manager in WWT this new data is given the name Sheet1_1. That name is a default provided by Excel which you can change to better describe the data.
We’ll do three things with the data visualization you’ve built thus far:
Suppose you want to know where a given data marker is in WWT. Excel supports this using Viewpoints.
Ok let’s pause to see the bigger picture for a moment. Session A is about mechanics; so granted the dataset is not too exciting. Once through this, however, session B will be about exploring multiple datasets in relation to one another in what we hope is an interesting way. This will require getting data from a variety of data providers on the web, then using our Excel machinery to bring them all into WWT.
Oblique view of data implying motion from north to south
Your first Tour slide will play back from your starting perspective. We have modified it to run for four seconds, and technically your Tour is done. But before we save it let’s add one more thing.
Before jumping in to more How To consider the task at hand as a challenge: How might you make a Tour slide that follows your data as it plays out in time as a flight path or trajectory?
The key idea is that slide Start Camera Positions and End Camera Positions encode WWT time values as well as spatial perspective.
Session A was a lot of stuff; so again congratulations on getting through it all!
In Session B we will explore the visualization potential of Layerscape.We will pose some questions, choose one of them to try and answer, and then hunt down related data on the web and get a copy of it. From there we will see what is necessary to bring that data into WWT.
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