topic Re: Quantities by category symbology in ArcGIS API for Flex Questions

Quantities by category symbology

GlenStichbury — Tue, 09 Jul 2013 21:12:55 GMT

Hi all

I'm new to web map development. I've been hunting around for an example of or even to find if it is possible to symbolize points by multiple attributes e.g. quantity by category.

Can anyone please tell me if it is possible and if they have an example app/code?

Thanks,

Glen

Re: Quantities by category symbology

RobertScheitlin__GISP — Tue, 09 Jul 2013 21:25:47 GMT

Glen,

If you are talking about clientside rendering then you need to look at the API doc for UniqueValueRender and on that page is a sample. The sample does not demonstrate using multiple fields but this is possible using the UniqueValueRenderer.

*Edit* Are you talking about a graduated render like in ArcMap?

Re: Quantities by category symbology

GlenStichbury — Tue, 09 Jul 2013 21:34:30 GMT

Hi Robert

Thanks for the quick reply.

Yes graduated size/colours is what I'm after. I have hundreds of points with numerical data that we would like users to choose a field to base the size of the points and another to change the colour. I see now from you're suggested link that if I pre-classify the breaks I could probably use the unique values renderer, but really it would be nice to use at least graduated colours.

Glen

Re: Quantities by category symbology

RobertScheitlin__GISP — Tue, 09 Jul 2013 21:41:55 GMT

Glen,

There is also a ClassBreaksRenderer in the API Doc.