Chartjs scalelabel Oct 13, 2025 · Step-by-step guide Follow this guide to get familiar with all major concepts of Chart. labels is defined, this will be used. Let's say you wanted to add 50px of padding to the left side of the chart canvas, you would do: Oct 13, 2025 · Line Chart A line chart is a way of plotting data points on a line. Often, it is used to show trend data, or the comparison of two data sets. The following additional configuration options are provided by the radial linear scale. js by default. They are often useful for comparing the points of two or more different data sets. I've also tried Oct 13, 2025 · Open source HTML5 Charts for your websiteCenter Positioning This sample show how to place the axis in the center of the chart area, instead of at the edges. Configuration Options Linear Radial Axis specific options Namespace: options. scales[scaleId]. js Labeling Axes is used to describe the information in a chart. Configuration object structure The top level structure of Chart. 7. js v2 Join the community on Discord (opens new window) and Twitter (opens new window) Post a question tagged with chart. js data visualization with a couple of charts from scratch: Build a new application with Chart. grid, it defines options for the grid lines that run perpendicular to the axis. d. JS? Oct 13, 2025 · Axes Axes are an integral part of a chart. js Welcome to Chart. xLabels is defined and the axis is horizontal, this will be used. ts:1179 Oct 13, 2025 · Open source HTML5 Charts for your websiteCommon tick options to all axes Namespace: options. These features include: Multi-line labels Filtering labels Changing the tick color Changing the tick alignment for the X axis Time Cartesian Axis The time scale is used to display times and dates. When building its ticks, it will automatically calculate the most comfortable unit based on the size of the scale. Here’s a beginner-friendly guide to understanding and customizing axis labels in Chart. type] defaults. chartjs. I want all the labels to appear, the time interval doesn't matter. style. Oct 13, 2025 · Title Configuration This sample shows how to configure the title of an axis including alignment, font, and color. 5. Similarly, the right, top and bottom properties can also be specified. There are settings to control grid lines and ticks. its position on the axis), and the value of other ticks. Omitted properties default to 0. js Among many charting libraries for Chart. type] defaults Dataset animation 24 I am having a problem with chartjs where the scale labels are being "cut off" in the following way: [1] Is there a margin that can be set? I don't see anything in the chartjs documentation about this, and these seem to be contained within the chartjs canvas element (meaning: not covered by another div). js! Get started with Chart. Chartjs scaleLabel position Asked 7 years, 11 months ago Modified 5 years, 4 months ago Viewed 12k times Jul 26, 2024 · Chart. In addition, booleans are provided to toggle different parts of the X axis grid visibility. We'll build a Chart. Oct 13, 2025 · Open source HTML5 Charts for your websiteCommon tick options to all cartesian axes Namespace: options. The global font settings only apply when more specific options are not included in the config. ticks Oct 13, 2025 · const config = { type: 'line', data: data, options: { plugins: { title: { text: 'Chart. Scale Title Configuration Namespace: options. This article will guide you through adding labels to both the X-axis (horizontal) and Y-axis (vertical) in your Chart. width and . Cartesian axes are used for line, bar, and bubble charts. js. By default, that data is parsed using the associated chart type and scales. defaults. js version 2. js can be individually extended. dataset options. callback method in the axis configuration. Oct 13, 2025 · Linear Radial Axis The linear radial scale is used to chart numerical data. datasets [dataset. Furthermore, these sizes are independent of each other and thus the canvas render size does not adjust automatically based on Oct 13, 2025 · Radar Chart A radar chart is a way of showing multiple data points and the variation between them. This can be useful for describing values that are of interest. Oct 13, 2025 · Open source HTML5 Charts for your websiteCategory Axis If the global configuration is used, labels are drawn from one of the label arrays included in the chart data. Date Adapters The time scale requires both a date library and a corresponding adapter to be present. js In a new folder, create the package. js In Chart. I've gone over the Oct 13, 2025 · const config = { type: 'radar', data: data, options: { responsive: true, plugins: { title: { display: true, text: 'Chart. Adding labels provides context, and it also helps the users to understand what type the data is shown in there. They tell viewers what each axis represents, making your charts easier to understand. Similarly, if data. By the end, you will be able to customize the different scales available in Chart. title, it defines options for the scale title. The tutorial will cover linear, time, and radial scale in detail. It is sometimes used to show trend data, and the comparison of multiple data sets side by side. 3 it is only possible to set a padding for the ticks on the Y-axis (" horizontal scale "): padding | Number |10 | Padding between the tick label and the axis. They are used to determine how data maps to a pixel value on the chart. Understanding Axes in Charts: Most charts use two axes: X-axis (horizontal): This axis Oct 13, 2025 · Open source HTML5 Charts for your websiteStyling There are a number of options to allow styling an axis. js: chart types and elements, datasets, customization, plugins, components, and tree-shaking. These axes are known as 'cartesian axes'. Use the ticks Oct 13, 2025 · Open source HTML5 Charts for your websiteFonts There are special global settings that can change all the fonts on the chart. js, formatting the x-axis time values involves searching for ways to present temporal data effectively. It is possible to write a custom function that determines how tick marks are displayed on the chart. To do this, you need to override the ticks. js Jul 24, 2019 · I have a problem with the graphics of CHART. These options are in Chart. If the labels property of the main data property is used, it has to contain the same amount of elements as the dataset with the most values. If only data. And this works like a charm:. The method receives 3 arguments: value - the tick value in the internal data format of the associated scale. Is there a way to rotate the label? exam Oct 13, 2025 · Cartesian Axes Axes that follow a cartesian grid are known as 'Cartesian Axes'. I figured out how to change the tick colors, but I'm not sure where to put the 'scaleFontCol Oct 13, 2025 · Configuration The configuration is used to change how the chart behaves. Jul 25, 2017 · I'm using chartjs-node to create a graph, and I use a label for the Y-axis. It also make the left par Oct 13, 2025 · Open source HTML5 Charts for your websiteTick Configuration This sample shows how to use different tick features to control how tick labels are shown on the X axis. In a radial chart, such as a radar chart or a polar area chart, there is a single axis that maps points in the angular and Jul 23, 2025 · The y-axis in a chart is a basic aspect of data visualization that indicates the significance of data points and contributes to the overall visual appeal of the chat. font. Chart level options options overrides [config. js Migrate from Chart. In this tutorial, we will use canvas plugins to add labels to the Chart. In a radial chart, such as a radar chart or a polar area chart, there is a single axis that maps points in the angular and Oct 13, 2025 · Axes Axes are an integral part of a chart. js Y-axis title: Jul 23, 2025 · Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more. Hierarchy default <unknown, O> LayoutItem ↳ Scale ↳↳ TimeScale ↳↳ RadialLinearScale Constructors constructor • new Scale <O> (cfg) Type parameters JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle. ticks Jul 23, 2025 · In Chart. ts:3075 Oct 13, 2025 · Open source HTML5 Charts for your websiteconst config = { type: 'line', data: data, options: { responsive: true, interaction: { mode: 'index', intersect: false Oct 13, 2025 · Open source HTML5 Charts for your websiteChart. The values for the labels have to May 18, 2024 · Chart. The scatter chart type automatically configures a line chart to use one of these scales for the x-axis. For example, adding a dollar sign ('$'). There are several approaches to format x-axis time scale values in Chart. In this case, the Y axis grid lines are colored based on their value. To do this, you need to label the axis. These components are: border grid lines tick tick Oct 13, 2025 · New Axes Axes in Chart. For time scale, it is a timestamp All the charts are always coded in the latest Chartjs version which is as of this recording Chart JS 3. Note: Only applicable to horizontal scales. js charts are fantastic for visualizing data, but to make them truly informative, you need clear and concise labels for your axes. type] defaults Dataset level options dataset. 1 Enumerations DecimationAlgorithm UpdateModeEnum Classes Animation Animations Animator ArcElement BasePlatform BasicPlatform Chart DatasetController DomPlatform PointElement Scale Interfaces ActiveDataPoint ActiveElement AnimationEvent ArcBorderRadius ArcHoverOptions ArcOptions ArcProps BackdropOptions BarControllerChartOptions BarControllerDatasetOptions BarElement All the charts are always coded in the latest Chartjs version which is as of this recording Chart JS 3. JS? Creating Custom Tick Formats It is also common to want to change the tick marks to include information about the data type. js how can I set the set the font size for just the x axis labels without touching global config? I've already tried setting the 'scaleFontSize' option my options object. js, "ticks" are the incremental markings that label values along the axis of the chart. height) can not be expressed with relative values, contrary to the display size (canvas. js — best if you're new to Chart. Oct 13, 2025 · Axes Axes are an integral part of a chart. js with ease. type]. Axes should always derive from Chart. There are properties to control styling, fonts, the legend, etc. By default, Chart. Please choose from the available I am using line chart from http://www. js to create a bar chart and can't seem to change the label colors or the legend colors. I tr Oct 13, 2025 · Bar Chart A bar chart provides a way of showing data values represented as vertical bars. Using both Oct 13, 2025 · Open source HTML5 Charts for your websiteTick Configuration This sample shows how to use different tick features to control how tick labels are shown on the X axis. As the name suggests, linear interpolation is used to determine where a value lies in relation to the center of the axis. Syntax: const config = { type: 'bar', data:, options: { scales: { y: { title: { display: true, align: 'center', text: 'Y-Axis Title', color: 'black', font: { family: 'Arial Apr 30, 2022 · In this tutorial, you'll read about scales in Chart. Configuration Options Common options to all cartesian axes Namespace: options. Configuration Options Linear Axis specific Jan 26, 2021 · Hello, i would like to rotate the y axis tittle label but in the documentation there is nothing on this topic. Note that this only applies to cartesian axes. As the name suggests, logarithmic interpolation is used to determine where a value lies on the axis. Data structures The data property of a dataset can be passed in various formats. js configuration: Oct 13, 2025 · Open source HTML5 Charts for your websiteGrid Configuration This sample shows how to use scriptable grid options for an axis to control styling. Draw the chart using the chart. In a radial chart, such as a radar chart or a polar area chart, there is a single axis that maps points in the angular and Oct 13, 2025 · const config = { type: 'line', data: data, options: { responsive: true, plugins: { tooltip: { mode: 'index', intersect: false }, title: { display: true, text: 'Chart May 18, 2024 · In Chart. js JavaScript library. height). It can be placed on either the x or y-axis. These labels are used to label the index axis (default x axis). json file with Oct 13, 2025 · Open source HTML5 Charts for your websiteLogarithmic Axis The logarithmic scale is used to chart numerical data. JS. The values for the labels have to Oct 13, 2025 · Responsive Charts When it comes to changing the chart size based on the window size, a major limitation is that the canvas render size (canvas. scales[scaleId] In chart. What type of charts can you make with Chart. These labels tell your viewers what the data on each axis represents. Scale but this is not a mandatory requirement. Oct 13, 2025 · Alignment and Title Position This sample show how to configure the alignment and title position of the chart legend. My problem is that the distance between the Y-axes ticks and label is minimal and does not look good. Interface: CartesianScaleOptions Hierarchy CoreScaleOptions ↳ CartesianScaleOptions Properties alignToPixels • alignToPixels: boolean Align pixel values to device pixels Inherited from CoreScaleOptions. js - v4. however, the labels are decimal values and i want to visualize as integers with step size of 10. When I put the time interval of 2 years, some labels of the months overlap. js on Stack Overflow (opens new window) Contribute to Chart. Oct 31, 2023 · I have data should represent data in a line chart where X-axis represents time in milliseconds. Grid Line Configuration Namespace: options. var g Oct 13, 2025 · {top, left, bottom, right} object If this value is an object, the left property defines the left padding. Default 'rgba (255, 255, 255, 0. js canvas plugin Approach to add labels into Chart. js charts. js Why Chart. According to the "Tick Configuration" of Chart. type] options overrides [config. type defaults to config. Oct 13, 2025 · Options Option resolution Options are resolved from top to bottom, using a context dependent route. js charts, axis labels play a crucial role in conveying the meaning of your data. js, especially in pie charts or bar charts, play a good role in making the data easier to represent. 75)' Defined in types/index. 1. js supports time series data and provides powerful options to customize the appearance of time labels on the x-axis. Formatting the y-axis also aids in conveying the meaning of data points. js v3 or Chart. scales[scaleId] How to format tick marks in Chart. These features include: Multi-line labels Filtering labels Changing the tick color Changing the tick alignment for the X axis May 15, 2023 · Label Annotations Label annotations are used to add contents on the chart area. Below are the approaches to set the Chart. The Scale Title Configuration allows customization of axis titles, which also includes the options for display, alignment, text, color, and padding. Oct 13, 2025 · const config = { type: 'line', data: data, options: { responsive: true, plugins: { title: { display: true, text: 'Min and Max Settings' } }, scales: { y: { min: 10 Jul 23, 2025 · Labels in Chart. Oct 13, 2025 · Open source HTML5 Charts for your websiteLabeling Axes When creating a chart, you want to tell the viewer what data they are viewing. alignToPixels Defined in types/index. If data. In a cartesian chart, there is 1 or more X-axis and 1 or more Y-axis to map points onto the 2-dimensional canvas. Data are spread according to the amount of time between data points. I would like to list the labels by 5 or 10 because currently they are all crunched together. js: Understanding Axes in Charts: Most charts, including line charts, bar charts, and scatter plots Oct 13, 2025 · Open source HTML5 Charts for your websiteLinear Axis The linear scale is used to chart numerical data. Four cartesian axes are included in Chart. yLabels is defined and the axis is vertical, this property will be used. js which are as follows: May 18, 2020 · I have labels ranging from 50-90, and every number in between in displayed. Project Preview add labels into Chart. For example, in this chart, the text will have a font size of 16px except for the labels in the legend. org/ As you can see max value (130) and min value (60) for Y axis are chosen automatically , I want max value = 500 and May 18, 2016 · I'm using chart. Open source HTML5 Charts for your websiteInterface: TickOptions Properties backdropColor • backdropColor: Scriptable <Color, ScriptableScaleContext> Color of label backdrops. The rotation is avalible only for axis ticks. Don't hesitate to follow the links in the text. linear logarithmic category time timeseries Visual Components A cartesian axis is composed of visual components that can be individually configured. type, if not specified. js Radar Chart' } } }, }; Oct 13, 2025 · const config = { type: 'line', data: data, options: { responsive: true, plugins: { title: { display: true, text: 'Suggested Min and Max Settings' } }, scales: { y Feb 7, 2022 · Label Annotations Label annotations are used to add contents on the chart area. e. As the name suggests, linear interpolation is used to determine where a value lies on the axis. js Time Scale', display: true } }, scales: { x: { type: 'time', time Feb 21, 2021 · Chartjs how to show scale label horizontally Asked 4 years, 8 months ago Modified 4 years, 7 months ago Viewed 1k times Oct 16, 2024 · Label Annotations Label annotations are used to add contents on the chart area. This function can determine the tick label based on the value, the index of the tick (i. rxgxx xfigg ohutwwwx wmryz wvhl ckwayb kqmj uedpx ahkar kbmlbr zocmau tcgvvbbg umbfye aznk xhxq