This topic describes how to configure a grid heat map layer to display the density of points scattered on a map.

Prerequisites

The grid heatmap layer child widget is added to the basic flat map and the widget parameters are set. For more information, see Map container.

Configure the configuration plane



  • Cell Size: Set the icon size by dragging the slider or entering a value. Based on the grid size that you set and the value range of the data, DataV calculates the number and location of all icons.
  • Classify Color Count: Set the number of color gradient levels (levels between From Color and End Color) by dragging the slider or entering a value. The color of each icon is displayed according to the point distribution.
  • From Color: Set the color of the icon where the color distribution of the points starts. For more information, see Configure item description. Based on the latitude and longitude of the points, DataV calculates the icon where the points are located. The icon that has the greatest number of points is the start icon.
  • End Color: Set the color of the icon where the color distribution of the points ends. For more information, see Configure item description. Based on the latitude and longitude of the points, DataV calculates the icon where the points are located. The icon that has the least number of points is the end icon.
    Note The color of the icons between the start icon and the end icon is determined by the Classify Color Count, From Color, and End Color that you set.
  • Border Width: Set the icon border width by dragging the slider or entering a value.
  • Border Color: Set the icon border color. For more information, see Configure item description.

Configure the data plane



  • lng: Set the longitude of the points.
  • lat: Set the latitude of the points.

Configure the interaction plane

No settings are required.