1 Topic by q2apro.com (edited by q2apro.com 2014-06-12 14:25:09)

Topic: How to make graphs smoother?

Hi Ivan,

I realized that graph lines has sometimes some block elements, e.g. see blue line of image "Capture1.PNG".

Desmos.com for example is adjusting the graph drawing so it is always smooth. See "Capture2.PNG".

I think it has to do with the - how i call it - "drawing step" or drawing distance, I guess it should be smaller in general - or at least if zoomed in.

Thanks,
Kai

Post's attachments

Capture-2.PNG, 24.3 kb, 565 x 458
Capture-2.PNG 24.3 kb, 736 downloads since 2014-06-12 

Capture1.PNG, 5.88 kb, 451 x 251
Capture1.PNG 5.88 kb, 754 downloads since 2014-06-12 

Re: How to make graphs smoother?

Even better to see in the following two graphics.

Post's attachments

Capture-2.PNG, 12.06 kb, 670 x 302
Capture-2.PNG 12.06 kb, 739 downloads since 2014-06-13 

Capture.PNG, 2.99 kb, 509 x 197
Capture.PNG 2.99 kb, 764 downloads since 2014-06-13 

Re: How to make graphs smoother?

For standard functions the drawing step is one pixel per default. For parametric and polar functions you need to specify it. I think what you see is lack of antialiasing. I am working on improving this in the beta version, but it turned out to be more complicated than anticipated.

Re: How to make graphs smoother?

"but it turned out to be more complicated than anticipated."

Maybe you make the graph line bigger (in desmos it is called "Projector Mode"). This way, I guess, the implementation of the antialiasing could be easier?

Re: How to make graphs smoother?

Any news on the anti-aliasing?

Re: How to make graphs smoother?

Sorry, but there is no news. I have not had much time to work on Graph. I hope to get more time soon, but I have been hoping that for years.