Glossary

Updated on Jan 6, 2026

This article defines terms specific to the Kendo UI Charts for Angular. For detailed information about chart elements, refer to the Chart Elements Overview article.

Chart Structure

Term	Definition
Axis (Plural axes)	A fixed reference line for measuring coordinates. Charts can have category axes, value axes, and specialized axes for specific chart types.
Category Axis	An axis that displays discrete categories or time periods. Used to organize data points along a horizontal or vertical line.
Value Axis	An axis that displays numeric values. Represents the scale for measuring data point values in the chart.
Chart Area	The outermost container for all chart elements. Configure background color, border styling, and dimensions through the chart area properties.
Pane	A separate section within a chart that contains its own set of axes and series. Stock charts commonly use multiple panes to display different data types.
Plot Area	The container for data visualization enclosed between the axes. Does not apply to donut, pie, pyramid, and funnel charts. Refer to Plot Area for configuration options.
Plot Band	A colored range that highlights a specific area on an axis. Use plot bands to mark target ranges, thresholds, or zones.

Data and Visualization

Term	Definition
Series (Plural series)	A collection of data points with a specific visualization type such as line, column, bar, or area. Each series represents a dataset. Data points can be numbers, arrays (tuples), or objects.
Category	A discrete value or label used to group data points on the category axis. Categories can be text labels, dates, or other identifiers.
Data Point	A single value or set of values in a series that represents one measurement or observation.
Tuple	A data structure with multiple values, represented as an array in JavaScript—for example, [1, 2] or ['category', 100, 50]. Charts use tuples to define multi-dimensional data points.
Data Binding	The process of connecting chart series to data sources. Supports array binding, observable binding, and integration with Angular services.
Aggregate	A calculated summary value such as sum, average, min, or max applied to grouped data points.
Trendline	A line that shows the general direction or pattern of data over time. Helps identify trends in the dataset.

Interactive Features

Term	Definition
Crosshairs	Lines perpendicular to the axes that help users identify exact values at the cursor position. Crosshairs appear on hover.
Tooltip	A popup that displays detailed information about data points when users hover over or tap chart elements.
Drill-Down	A navigation pattern that allows users to move from summary data to detailed views by clicking chart elements. Refer to Drill-Down for implementation details.
Pan and Zoom	Interactive features that let users navigate large datasets by panning (moving the visible area) and zooming (changing the scale). Refer to Pan and Zoom for configuration.

Visual Elements

Term	Definition
Markers	Visual symbols that highlight individual data points on line, area, and scatter charts. Can be circles, squares, triangles, or custom shapes.
Error Bars	Visual indicators that show the variability or uncertainty of data points. Display ranges above and below data points to represent statistical confidence or measurement error.
Legend	A guide that identifies series using colors, symbols, and labels. Helps users understand what each series represents.
Labels	Text elements that display values, categories, or information on chart elements such as axes, data points, and series.
Notes	Annotations that highlight specific data points or ranges with text, arrows, or custom icons.
Title	Text that describes the chart or axis. Can be positioned at the top, bottom, left, or right of the chart or axis.

Specialized Charts

Term	Definition
Sparkline	A small, simple chart that displays trends in a compact space, typically without axes or labels. Refer to Sparkline for details.
Stock Chart	A specialized chart for financial data that includes features such as date range selection, multiple panes, and stock-specific indicators. Refer to Stock Chart for configuration.
Navigator	A control in stock charts that allows users to select and navigate date ranges in the dataset.

Rendering

Term	Definition
SVG Rendering	The default rendering mode that creates charts using Scalable Vector Graphics. Provides high-quality visuals that scale without quality loss.
Canvas Rendering	An alternative rendering mode that uses HTML5 Canvas for improved performance with large datasets. Refer to Rendering for mode comparison.
Animation	Visual transitions that occur when the chart loads or updates. Animations make changes more noticeable and engaging.

See Also

• Chart Elements Overview
• API Reference of the Charts
• Angular Charts Homepage