BubbleChart.ShowHistoryPreviousStepsOnly

Syntax

ShowHistoryPreviousStepsOnly: Boolean;

Description

The ShowHistoryPreviousStepsOnly property determines display mode only for values history of previous bubbles.

Comments

Values history bubbles is a display mode for values of previous years. By default value for several previous years is displayed, if the value is True, only one previous history value is displayed.

Use JSON or the setShowHistory method to set the property value, and the getShowHistoryPreviousStepsOnly method to get the property value.

Example with BubbleChart

To execute this example, the HTML page must contain the BubbleChart component named bubbleChart (see. Example of Creating the BubbleChart Component). Enable display mode of values history bubbles and determine display mode for only previous bubbles:

// Display values history bubbles
bubbleChart.setShowBubbleHistory(true);
// Enable values history bubbles displaying on tooltips displaying
bubbleChart.setShowHistoryBubbleTooltip(true);
// Display only previous bubbles of values history
bubbleChart.setShowHistoryPreviousStepsOnly(true);
// Disable the second element on the time line
bubbleChart.setTimelineStep(1);

After executing the example, the following display modes are enabled: for values history bubbles, for values history bubble labels and for only previous values history bubbles.

Example with ExpressBox

To execute the example, the HTML page must contain the ExpressBox component named expressBox (see Example of Creating the ExpressBox Component). Enable display mode of values history bubbles and determine display mode for only previous bubbles:

// Get bubble chart instance
DV = expressBox.getDataView();
CV = DV.getBubbleChartView();
bubbleChart = CV.getInstance();
// Display values history bubbles
bubbleChart.setShowBubbleHistory(true);
// Enable values history bubbles displaying on tooltips displaying
bubbleChart.setShowHistoryBubbleTooltip(true);
//Display only previous values history bubbles
bubbleChart.setShowHistoryPreviousStepsOnly(true);
// Enable the second element on time line
bubbleChart.setTimelineStep(1);

After executing the example, the following display modes are enabled: for values history bubbles, for values history bubble labels and for only previous values history bubbles.