Syncing chart data with table/grid

Type tutorial

This tutorial will look at ways on how we can grab chart data and display it in an HTML table. We will then build on it to enhance for display in a Grid component. Finally, we’ll make chart data sync up with editable grid. Introduction Since amCharts is not in the data grid business, we […]

Adaptive column corner rounding for positive and negative values

Type tutorial

This tutorial will show how we can use adapters to selectively apply rounding to columns of the ColumnSeries based on their value. The problem Suppose we have this chart: We want to round the corners of the tips of those columns. The properties for columns that are responsible for rounding of top corners are cornerRadiusTopLeft […]

Plugin: Range Selector

Type tutorial

This tutorial will show how you can use Range Selector plugin (available since version 4.9.25) to create HTML-based controls for alternative zooming methods of Axes. NOTE Range Selector is a plugin. For information about using plugins, refer to this article. Using the plugin Including the module Before you can use this plugin you need to […]

Using axis ranges to place labels at arbitrary values or dates

Type tutorial

Axes of various types follow their own logic when they choose where to place its grid and labels. However, sometimes you need to place those labels at precisely value X, or on date Y. That’s where axis ranges might come in handy, which is the focus of this tutorial. Prerequisites Just to refresh your memory […]

Make AM/PM prompts lowercase or change them

Type tutorial

amCharts’ number formatter supports various version of the AM/PM indicators (AM/PM; A.M./P.M.; A/P) in date/time formats, however they are all in upper case. This short tutorial will show how you can make them lowercase, or change them altogether. Modifying locale Since AM/PM are translatable strings, they are represented in your current locale (or collection of […]

Fixed ValueAxis scale

Type demo

This demo shows how we can use ValueAxis event “ready” to fix its scale (min and max values) on load so it does not change when chart is zoomed or scrolled.

Manipulating chart data

Type tutorial

Each chart type in amCharts family has a specific requirement for structure its data should come in. Mostly it comes in a form of an array of objects. However sometimes you don’t have control over format of source data. This tutorial will explore how we can pre-process data to reshape it into an amCharts-suitable form. […]

Multi-series shared tooltip with colored bullets

Type demo

This demo shows how we can use an adapter for series’ tooltipText property, in-line text formatting, and cursor’s maxTooltipDistance to build a single universal tooltip that displays values from all series, complete with colored bullets. For more information, make sure you visit related tutorials for mentioned functionality: Adapters In-line string formatting Limiting number of series […]

Custom external legend

Type demo

This demo shows how we can use some custom code executed on chart load to build completely custom but interactive HTML-based legend for our chart.

Show column tooltip on category hover

Type demo

This demo shows how we have use “over” and “out” events on axis labels as well as chart cursor’s triggerMove() method to trigger tooltips on columns of the hovered category label.