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kibichii / geoda

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Bubble Chart: circle size too large #44

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
the default circle size in the bubble chart seems to be too large.
the bubbles are too overwhelming and there is too much overlap.
need consider a scaling algorithm.

Original issue reported on code.google.com by lanse...@gmail.com on 9 Sep 2013 at 11:22

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
We need a way for the user to scale up/down the circle size.  A slider on the 
side would be nice.

Original comment by mmcc...@gmail.com on 4 Apr 2014 at 6:00

GoogleCodeExporter commented 9 years ago

Original comment by lanse...@gmail.com on 25 Jun 2015 at 6:37

GoogleCodeExporter commented 9 years ago 
add 'adjust bubble size' to menu
add a dialog with slider to adjust bubble size by scaling the size from 0.0 
(small) ~ 1.0 (normal) ~ 5x (large)

fix was proposed in ci 3700 3701 3702

Original comment by lixun...@gmail.com on 14 Jul 2015 at 2:15

GoogleCodeExporter commented 9 years ago 
GeoDa 1.7.37-2 (nightly) 13 July 2015

Set minimum small option on bubble chart size slider to the option where you 
can still see all observations. Right now when you slide to the smallest value, 
all observations disappear ;)

For large datasets like nat.shp/ncovr.shp with samll bubble sizes, the lower 
value ranges look transparent? Not sure why. See attached screenshot.

For datasets like this the small scaling makes almost all observations look 
similarly small. I know we have the same issue with the cartogram for larger 
datasets. Just FYI in case there's a way to increase the contrast between min 
and max for the small setting.

Original comment by jkoschin...@gmail.com on 14 Jul 2015 at 10:12

Attachments:

GoogleCodeExporter commented 9 years ago 
fix applies in ci 3706

1. set minimum small threshold, so that observations will NOT disappear.

2. there is no transparency support in bubble chart -- it looks like 
transparent because of the color scheme and the layout of the points make it 
look like transparent:)

3. current fix is just for scaling the size of bubble, not a throughout 
solution of changing the algorithm of computing the actual size. So, it should 
be done in another ticket -- maybe next version.

Original comment by lixun...@gmail.com on 14 Jul 2015 at 6:56

GoogleCodeExporter commented 9 years ago 
fix in >= 1.7.39

Original comment by lixun...@gmail.com on 15 Jul 2015 at 2:41

GoogleCodeExporter commented 9 years ago 
GeoDa 1.7.39 (beta), 14 July 2015

1. verified for two datasets (NYC and 8k CA tracts).

Original comment by jkoschin...@gmail.com on 15 Jul 2015 at 4:20