As title, using chart "to" draw a curve of tens of thousands of data points loading slowly (temporary not consider smoking loose data points), how to solve, or have any other better ways of drawing?

CodePudding user response:

The third party controls? Try to use gdi drawing directly how much points are objects not slow?

CodePudding user response:

What chart, web or winform?

Have all kinds of chart, web technology is different, can you tell what to compare,

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CodePudding user response:

The curve of the tens of thousands of points, how long was it? If short concise once, or according to the page size and loading part behind again

CodePudding user response:

You don't want to use GDI, change the DX, guarantee good performance,

CodePudding user response:

refer to the original poster Mr Response:

, such as title, using chart "to" draw a curve of tens of thousands of data points loading slowly (temporary not consider smoking loose data points), how to solve, or have any other better ways of drawing?

Where are the demand of "forced" to draw from
1. If from the point of view of display,
The ordinary notebook, high screen is 1366 * 768
That is when a curve showing the data of more than 1366 have been unable to accurately express the
So according to the display range block to extract the feature points to draw is reasonable,
2. Vs own char controls, showed more than 2000 ~ 3000,
May be a significant card,
If you want to "force", according to a business to consider software

CodePudding user response:

Warrior, you may use your caracal curve control, tens of thousands, millions of points can be normal, according to the scope of arbitrary stepless smooth put shrinkage curve, simultaneous translation will not caton, baidu, embellish the Philippines mi can try to download demo control, cost is not high, can be transferred to party a, must be good, thank you,