Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

qml chart internal processing

Unsolved QML and Qt Quick

4 Posts 3 Posters 335 Views

S Offline
S Offline
sraavya

wrote on 15 Sept 2021, 13:45 last edited by

#1

how does qml chartView plots 625 data points on 400pixels screen.
J 1 Reply Last reply 15 Sept 2021, 16:28

0
S sraavya
15 Sept 2021, 13:45

how does qml chartView plots 625 data points on 400pixels screen.
J Offline
J Offline
jsulm
Lifetime Qt Champion
wrote on 15 Sept 2021, 16:28 last edited by

#2

@sraavya Well, some points will override each other when mapped to the same pixel...
https://forum.qt.io/topic/113070/qt-code-of-conduct
1 Reply Last reply

3
S Offline
S Offline
sraavya

wrote on 16 Sept 2021, 07:13 last edited by

#3

consider we have 5 pixels and we have to plot 11 data points. then how does this gets plotted?
is there any documentation related to this?
1 Reply Last reply

0
J Offline
J Offline
JKSH
Moderators
wrote on 16 Sept 2021, 07:23 last edited by

#4

@sraavya You'll need to plot fewer points then: https://en.wikipedia.org/wiki/Downsampling_(signal_processing)
Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches
1 Reply Last reply

3

1/4

15 Sept 2021, 13:45