Vue statistical chart report export and printing skills
As the importance of data analysis and visualization continues to increase, the display and sharing of statistical charts has become an important part of many projects One of the must-have features. In the Vue project, we can use some techniques to implement the report export and printing functions of statistical charts. This article will introduce some practical code examples to help you quickly implement these functions.
1. Report export
In the Vue project, we can use the html2canvas and FileSaver.js libraries to export the chart as picture. First, install these two libraries:
npm install html2canvas --save npm install file-saver --save
Then, in the component that needs to export the chart, introduce these two libraries and define a method:
In the above code, we first use # The ##ref attribute names the statistical chart component
chart, and then in the
exportToImage method, use
html2canvas to convert
chart is
canvas, and then convert
canvas to a
Blob object through the
toBlob method. Finally, use the
saveAs method to save the
Blob object as an image file.
npm install jspdf --save
jsPDF object, and ## In the #exportToPDF
method, use the doc.html
method to add chart
as HTML content to the PDF file. Finally, save the PDF file using the doc.save
method. 2. Printing function
In addition to the export function, we may also want to add the function of printing charts to the Vue project. In a Vue project, you can use the
window.print method provided by the browser to implement the printing function. In the component that needs to print the chart, define a method: , and then use Through the above code examples, we can easily implement the report export and printing functions of statistical charts in the Vue project. You can easily implement these functions by choosing the export method (image or PDF) that suits your project needs and adding relevant methods to the chart component. Hope this article helps you! In the above code, we first create a new browser window printWindow
document.write
Method adds the HTML content of the chart to the body of the new window. Finally, use the print
method to trigger the browser’s printing function. Summary: