Lazarus

Programming => General => Topic started by: Ame555 on October 30, 2020, 12:45:16 am

Title: Real time trends on Lazarus
Post by: Ame555 on October 30, 2020, 12:45:16 am

Hello dear community, I would like to know if it is possible to make a real time trend with Lazarus as shown in this video:

https://www.youtube.com/watch?v=37Zj955LFT0 (https://www.youtube.com/watch?v=37Zj955LFT0)

In this case there would be two types of trends:

The first one generates the trend from a numerical value inserted through a TEdit1.

The second Trend reads the numerical data stored in a database and is generated from a query parameterized by dates and times.

Where I am recommended to start reading to achieve this.

I appreciate your time.

Pdt. Please excuse my little knowledge of English.

Title: Re: Real time trends on Lazarus
Post by: wp on October 30, 2020, 12:58:22 am

You can achieve this with TAChart. If you never worked with this set of components you should begin with reading the Getting Started (http://wiki.lazarus.freepascal.org/TAChart_Tutorial:_Getting_started) tutorial.

As for the scrolling view, there was a recent question here in the forum: https://forum.lazarus.freepascal.org/index.php/topic,50759.msg371221.html