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Combining Multiple Representations

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Previously, we have investigated how to represent single signals, signal history and process history over neighbourhoods in their geographic context. Here we look at combining these views into a single graphic. Firstly, we can place the signal icon on top of process view.

A tile map showing both signal and process information for each neighbourhood.
Click on a neighbourhood to see its SPC chart.
The date is .

Further to this, we can add the mark indicating the mean of the data point or signal. We adjust the opacity to allow the glyphs to be seen on top of the processes and signals.

A tile map showing both signal and process information for each neighbourhood, as well as a mark showing the mean of either the last data point or the signal.
Click on a neighbourhood to see its SPC chart.
The date is .

At this point, each tile requires more display space for it to be easily interpreted, so we can try enlarging the image.
Clicking on a chart opens it in the margin above.

Since we see the direction of the signal (positive or negative) is encoded in the colour of the mark, we could rem ove the colour from the shapes that inform us about signal type. This potentially reduces clutter.

A tile map showing both signal and process information for each neighbourhood, as well as a mark showing the mean of either the last data point or the signal. The shapes showing signal type are now colourless gaps - giving better visual differentiation from the angled lines.
Click on a neighbourhood to see its SPC chart.
The date is .

Once again we enlarge the map to see the detail.

Now that we have removed the coloured shapes, we can try adding the trend channels on the top and bottom of each neighbourhood, showing historic positive and negative signals.

A tile map showing both signal and process information for each neighbourhood, as well as a mark showing the mean of either the last data point or the signal, and with trend channels top and bottom.
Click on a neighbourhood to see its SPC chart.
The date is .

Again, we enlarge the image for a clearer view.

This page investigated how we can fit all the summary information regarding an SPC chart of a neighbourhood into a small area by Combining Multiple Representations.

Next we consider designs for Comparing Multiple Maps when we show maps of different characteristics concurrently.