Vytvoření teplotní mapy z vlastního výrazu Arcade?

Question

Jak mohu v AGOL vytvořit teplotní mapu z vypočítaného výrazu Arcade? Načítám bodovou datovou sadu z Living Atlas a pomocí výrazu Arcade počítám nový atribut. Když vyberu vlastní atribut, styl vykreslení pro teplotní mapu zmizí. Lze z tohoto atributu vytvořit teplotní mapu? Možnosti teplotní mapy se zobrazují u ostatních atributů.

Děkuji

JessicaBeres · Answer

Thank you Mike. Yes, adding a new field will not work for this situation. I am using the Live Stream Gauge feed from Living Atlas, to calculate the percent of flood stage for specific sites. We were hoping to be able to use this value to generate a heat map to predict other flooded areas. Since the data is constantly updating, creating a static data set will not be useful. Thank you for the help.

Mike Minami · Answer

The heat map drawing style doesn't support using custom arcade expressions as the attribute. We don't support it at this time. With hosted feature layers, you can add a new field and use an arcade expression to calculate a value into that field, then use that field as the attribute. However, this may not work in your case as it seems you are using a living atlas layer.

Calculate field values—ArcGIS Online Help | ArcGIS

Mike