Click here to see the SAS code.
Click here to see the example.
Although it looks fairly complex because of the high number of x/y cells
(over 30,000), this wafermap was probably the easiest to create :-)
For each x/y wafer data value, I just create a 4-coordinate area in my
sas/graph map data set. I then annotate a round gray-colored "polygon"
behind the map, so that the edges look more round (this isn't really
even necessary when you've got such dense/small cell-size).
I add a 'fake' data obsn at 0 and at .06 (the min & max possible
data values) to force the automatic legend to consistently go from
0-.06 no matter what the data is. And then I just use gmap to draw
the wafermap, and use the built-in legend.
Very simple & straightforward!
No annotated gridlines to worry about.
No html title charttips/flyover text.
No custom key/legend.
No summarized cells along the border.
The hardest part was "tweaking" my fake data, to get the same
color-shading along the right-hand side as the HoloGenix wafermap
that I was trying to imitate :)
You might notice that this example does not have charttips.
It could easily have them, just like the other examples, but with
this many individual 'cells' the html 'imagemap' describing all
the hotspots is *huge* and makes it kinda slow to view the wafermap,
so I opted to leave them out of this particular example.
For those of you that like something a little 'fancier', I have created
a special "interactive" version, that lets you drilldown/zoom-in,
using sas/intrnet. This is only available on the intenal sas web.
This is not fully-functional, but is just a proof-of-concept:
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