Allow user ability to modify symbology as needed

[ekamptner]

Requirement

Allow DOHMH to control symbology as needed by providing symbol name/hex value from MAKI library in facilities.csv OR ArcGIS Online symbology.

Related Issue

#4 Display legend if dynamic symbology used

Notes

DOHMH Use Case

DOHMH needs ability to modify symbology on the fly depending on how the POD site will be used.

Use Case: There is a mass activation of POD sites for dispensing mass prophylaxis to the NYC public. POD sites were opened in sequence to dispense medicine to the public, however, after 10 days, selected POD sites were now being used to provide vaccination services and/or for informational purposes. DOHMH has weighed using a color palette to indicate types of services, but the existing color symbology along with the need for Section 508 compliance is limiting options. Can we use different types of symbols to indicate potential services or other variables?

Proposed Solution
Symbology may be handled in the following ways:

1. Use ArcGIS Online feature layer for rule-based symbology. This option allows dynamic control of symbols/colors/size as needed and changes would be reflected in the legend.

2. DOHMH provides static svg symbol library and update the data schema (REST and csv) to include a field to specify the symbol for each facility. The symbology would be a static image library deployed with the application. Ex. New field in schema “pod_sym” has a value “clinic” which corresponds to the clinic.svg symbol in the provided symbol library.

3. Use MAKI library to designate symbology/color