You can apply for Non-Commercial version of CanvasJS here. Please refer FAQ for more info and contact sales@canvasjs.com for further sales related queries.
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Vishwas R
Team CanvasJS
Chart elements looks blur when either zoom within display setting of windows or browser is changed. Resetting zoom to 100% should work fine.
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Vishwas R
Team CanvasJS
It seems to be proper and not blur across browsers including Chrome, Firefox, Opera, Edge, IE11.
Can you kindly share your OS, Browser(browser name and its version) details so that we can try at our end and fix the issue, if any?
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Vishwas R
Team CanvasJS
I have forwarded your query to our sales team. One of our team-member will get in touch with you over mail. Please contact sales@canvasjs.com for further sales related queries.
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Vishwas R
Team CanvasJS
It seems to be working fine irrespective of chart-type. Can you kindly create JSFiddle reproducing the issue you are facing and share it with us so that we can look into your code, understand the scenario better and help you out?
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Vishwas R
Team CanvasJS
Considering this thread as duplicate of Text is Blur and closing this thread.
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Vishwas R
Team CanvasJS
Importing canvasjs.min.js file to the project as import * as CanvasJS from '/path-to-canvasjs-file/canvasjs.min' should work fine. Please take a look at this Sample Project.

If you are still facing the issue, please share sample project reproducing the issue you are facing over Google-Drive / Onedrive, so that we can run it locally at our end, understand the scenario better and help you out.
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Vishwas R
Team CanvasJS
CanvasJS Chart just renders the data that’s being passed to chart-options. It seems like you are passing x-value(date) as label because of which there could be the mismatch of values. Passing date-time values as x-value, that’s read from the database, should work fine in this case.
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Vishwas R
Team CanvasJS
Thanks for your comparison and suggestion. We will reconsider this behavior in future releases.
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Vishwas R
Team CanvasJS
Please refer this documentation-page for step-to-step tutorial on rendering chart from CSV data.
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Vishwas R
Team CanvasJS
CanvasJS supports exporting chart as an image or to print it. To export multiple charts rendered within a page, you can use html2canvas as shown in this JSFiddle, which can be integrated with JavaScript frameworks like Angular, React, etc.

Please refer this article for more info.
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Vishwas R
Team CanvasJS
I use a lot of data to create the graph, about 30,000 points, the problem is that if I have few points in the array (example 5,000) this is displayed correctly, but when I have many more it sends this error:
The issue is happening due to the incorrect format of dataPoints being passed to the chart-options. Removing redundant numbers between the objects of dataPoints array should work fine in this case. Please take a look at this Updated JSFiddle.
Format of dataPoints that you have passed:
dataPoints: [{"y": 24},{"y": 24},34,{"y": -315}]
Valid Format:
dataPoints: [{"y": 24},{"y": 24},{"y": 34},{"y": -315}]
other peculiarity, if I use the php function in example to create random data the graph is displayed.
Php $ limit = 50000; $ y = 100; $ dataPoints = array (); for ($ i = 0; $ i <$ limit; $ i ++) { $ y + = rand (0, 10) – 5; array_push ($ dataPoints, array (“x” => $ i, “y” => $ y));
}
?>if I use mine it only works with a few points
This is working fine as the format of dataPoints being generated is proper.

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Vishwas R
Team CanvasJS
A logarithmic axis can only plot positive values. There simply is no way to put negative values or zero on a logarithmic axis.
Fundamental: If 10L = Z, then L is the logarithm (base 10) of Z. If L is a negative value, then Z is a positive fraction less than 1.0. If L is zero, then Z equals 1.0. If L is greater than 0, then Z is greater than 1.0. Note that there no value of L will result in a value of Z that is zero or negative. Logarithms are simply not defined for zero or negative numbers.
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Vishwas R
Team CanvasJS