How do I download the graph with the correct pointer value?

Posted by Joao Pedro at 19:08 on Tuesday 28th February 2023 [link]
I try download of graph with code below:
$(".test").append(`<a download href='${obj.canvas.toDataURL("image/png")}'>Test</a><br>`);
but when I download the graphic it has the wrong pointer value.
Attached image:
Attached image

Posted by Richard at 20:25 on Tuesday 28th February 2023 [link]
Is the chart showing the correct value when the button is pressed? Is there an animation involved?

Can you link to the page that the chart is on or put an example online? What happens if you put a regular, static link on the page for example:

<a href="#" onclick="location.href = myObject.canvas.toDataURL('image/png')">Test</a>

PS If the canvas is supposed to be white, try clearing it to white before drawing:

m = new RGraph.Meter({
    id: 'cvs',
    min: 0,
    max: 200,
    value: 98,
    options: {
}).on('beforedraw', function (obj)
    RGraph.clear(obj.canvas, 'white');

[Replies are now closed]