Frontend Layers Usage

1. Clickbox Layer

• Activate: Click any point on the map and hold for 1 second
• Performance: Shows up the first popup with latlng info of this point, then shows up the second popup with 3 charts

2. Heatmap Layer

• Activate: Check the checkbox in the right-upper corner

3. Dotmap Layer

• Activate: Drag the 2 blue bars to set lower and upper bounds of temperature correspondingly in the left sidebar
• Performance: Display region with different color layers which satisfy the bounds set

4. Fire Tweet Layer

• Activate: (1) Check the checkbox in the right-upper corner (2) Drag the time bar to select a time range (3) move mouse over any red spots on the map (3) Hold for 250ms
• Performance: (1) Shows up a red circle marker (2) If clicked, a popup with tweet contents shows up