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If you're using Chart.js in a browser and you want to provide a download to the user, use the built-in toBase64Image function. See the Chart.js v2 or Chart.js v3+ docs. Here's an example (also available in jsFiddle): // Create the chart. var myChart = new Chart(document.getElementById('chart').getContext('2d'), {.
31 Μαρ 2017 · Basically, we create a new canvas element that is the size of your report page and incrementally paint the pixels from your existing chart.js canvas charts into the new canvas. Once that is done, then you can use jsPDF to add the new canvas to a pdf document as an image and download the file. Here is an example implementation that does just that.
This is a list of 10 working graphs (bar chart, pie chart, line chart, etc.) with colors and data set up to render decent looking charts that you can copy and paste into your own projects, and quickly get going with customizing and fine-tuning to make them fit your style and purpose. To use these examples, make sure to also include Chart.js:
13 Μαρ 2020 · Chart.js - Download Multiple Charts as PDF. GitHub Gist: instantly share code, notes, and snippets.
18 Φεβ 2022 · y - y Coordinate (in units declared at the inception of PDF document) against the upper edge of the page. This one is a little bit trickier. We need to have a variable for keeping track of the used or already occupied pdf page space, e.g., start with the initial value of 20px, for example, and then increase it every time by the added image height.
11 Φεβ 2023 · (Read my blog post about command line interfaces if you need help with this step.) 3. Use the Chart.js CDN: Add the following script tag to the head of your index.html file:
Chart.js. Previous Next . Chart.js is an free JavaScript library for making HTML-based charts. It is one of the simplest visualization libraries for JavaScript, and comes with the many built-in chart types: Scatter Plot. Line Chart. Bar Chart. Pie Chart. Donut Chart.
