I. General
1）A Heat Map uses the shades of heats to show the size and range of the data, as well as the weight of each point. It is suitable for presenting data containing information on location.
2) The advantage of Heat Maps is that they can visually display the distribution of data location in combination with a map. The disadvantages of them is that they must contain information on location, the data need to be summarized, the bubbles are easily overlapped, and the area of the bubbles is independent of metric values, which can be easily misinterpreted.
3) Please read: Chart Data, Chart Style and Chart Special Effects
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II. Steps
1. Prepare Data
1) Create a File Dataset named Earthquake and select the Excel file, as shown below:
2) Preview data:
2. Insert chart
1) This article introduces a method of displaying the level of seismic intensity in each region using a Heat Map. Take Floating Chart as an example: Refer to insert Floating Chart.
In the pop-up [Chart Type] panel, select [Heat Map] on the left.
Select [Heat Map].
Click [OK] to finish inserting the Heat Map.
2) Double click on the map and click on [Type] on the right to set layers.
Map Point: you can select the boundary of the map layer here, and the default setting is “world”.
GIS layer: you can choose the type of base map here, and the default setting is “Mapbox”.
Zoom Level and Center: The default setting of Zoom Level and Center is “Automatic”.
3. Bind Data
Double-click on the Heat Map and click on [Cell Element]>[Data] in the right panel to bind data:
Select [Dataset data] in [Data source], and [Earthquake] in [Dataset].
Select the default [Lat/Long] for [Geograhic Info], [Longitude] for [Longitude], [Latitude] for [Latitude], and [Area] for [Area Name].
Select [Enable Field Name] for [Series Name From], and Magnitude for [Field Name]. Input the following under the [Series]: Magnitude.
4. Set style
1) General style
Select the chart and click [Style]. There are a variety of chart types, but most of the style settings are similar to the general style. You can refer to Chart Style and the default setting is as follows:
Set label
Click on the [Label] and check [Use Label].
Check [Area Name] and [Value] for the Content.
2) Special Style
Some settings in the [Style]>[Series] of the Heat Map are different from the general style, and are introduced separately here.
Heat Point
Color The Heat Map supports displaying the size of series value via gradient color. See Chart Series for details.
Style:
Rendering Radius: you can customize the radius size of heat points here. The Rendering Radius is set to 25 by default.
Blur: you can customize Blur for heat points here. We set it to 50%
Opacity: you can customize the Opacity of heat points here. You can also set Max and Min to set the maximum and minimum opacity of heat points.
Note:
The larger the Rendering Radius, the larger the display area of the heat area.
The greater the value in Blur, the greater the blur length of the heat boundary.
The minimum or maximum opacity corresponds to the opacity of minimum or maximum values respectively.
BG Area
Color
Null Color: you can control the Null Color of BG Area here.
Opacity: The Opacity of BG Area is set as 75 by default.
Border
Line Style: you can control the Line Style (including None, Thin Line and Thick Line) for BG Area here.
Color you can control the Color of BG Area here.
Opacity: you can control the Opacity of BG Area here.
5. Set Special Effect
For a detailed description of settings of Special Effect, see Chart Special Effects for the settings of general special effects.
6. Preview Effect
Save and preview. An example of a Heat Map with the Style already set is shown below.
