Applying a style(s) to a web map

[SLouq]

Hi,

I have a Survey123 form which is filled out by workers in the field for Hydrant inspections and this form updates a hosted feature layer in ArcGIS Online. The task is to create symbology for this hosted feature layer based off a range of values based on the calculated GPM for that hydrant. 
 

My initial thought to do this was to create a symbology layer in ArcGIS Pro and then just upload that layer to ArcGIS Online but that just copied over the existing hosted feature layer. So my next idea is to use styles in a web map based off the ranges but I am not sure how to accomplish this. Can someone help?

Thanks

[Erika_ess]

I'm not sure if this is what you're looking for, but it may help guide you in the right direction.: Design Symbology in ArcGIS Online 

[SLouq]

Thank you for the reply Erika!

What I am trying to accomplish is to assign colors to hydrants depending on what GPM value they have. I have four ranges which hold the GPM value for the hydrant.  (ie, 0-499 - red, 500 - 999 - orange, 1000 - 1499 - green, and 1500 or greater - blue) But this value will be determined in the field as it is calculated in the form. In other words have the hydrant or point turn that color in a web map as the value is filled in on the form.

Thank you

[Erika_ess]

In the contents pane, would selecting the Change Style icon , selecting the attribute, and then select a style from there to customize be an option for what you're trying to accomplish? This way as data is added it should show as the color determined for that range. 

[SLouq]

I think I will have to create dummy attributes to hold the values for the ranges in ArcGIS Pro and create symbology that way then delete the dummy attributes and upload it to ArcGIS Online acct. 

Would like to do all this in ArcGIS Online web map and not have to create it in ArcGIS  Pro and then upload it. 

Thanks for your help!

[Erika_ess · Accepted solution]

If GPM is an attribute, in the Map Viewer you can Change Style and in the drop down box for Choose an attribute to show, select GPM. For the drawing style you can select Counts and Amounts (color) and hit the options button . From there select the check box for classify data and in the drop down menu select Manual Breaks. This way you can set your ranges. Select symbols on the right side next to your range bar and at the very bottom there's a color range for Red-Orange-Green-Blue. Select OK and then Done. This should (hopefully) give you the classification you're looking for. 

Style Numbers Support Doc 

[SLouq]

The hosted feature layer is an empty feature. It has no attributes. GPM is a field name which will hold the attributes which I want to create 4 ranges for and then assign a color to each range. So when a value is generated in the GPM field, the hydrant will get the color of whatever range it falls into. 

[Erika_ess]

Understood. Your idea of creating placeholder attributes in the meantime will also work this way in AGOL. The Choose an Attribute to Show drop down menu will show the field names, this is where you would select your GPM field name. Once you start importing data for GPM in the field, that data classification method will yield the visual results you're looking for based on the range it falls under. 

[SLouq]

Thank you Erika_S! 

taking a few dummy points and then using the Counts and Amounts (color) style seemed to do the trick! 

Thanks so much for your help.

[Erika_ess]

Awesome, @SLouq ! Glad it worked.