Real Time Plot Not Smooth Enough

2014 10 19
1 个回答
回答已采纳
更新时间：2014 10 19
2 次查看（30 天）

0 个投票

Hi Guys
I have written a real time plotter that plots 128 samples I receive from an EEG headset, one sample at the time and attached is the result.
Obviously, since I'm plotting one point at a time, it is not going to be continuous enough.
Is there anyway to do real time interpolation to some how connect these dots?
If not, how do people produce real time plots that are continuous (smooth or jagged doesn't matter)?

2 个评论
显示 无 隐藏 无

Rick Rosson
Rick Rosson 2014-10-19
Please post your code.
Bolin
Bolin 2014-10-19
Let's 'h' be the object we wish to query
for Seconds = 1:5
for Samples = 1:128
Channel_1 = h.data(Samples,4);
Channel_2 = h.data(Samples,5);
subplot(2,1,1)
plot(i+Seconds*128,Channel_1,'--r','LineWidth',1.8), axis([0 640 2000 8000])
hold on
grid on
subplot(2,1,2)
plot(i+Seconds*128,Channel_2,'--g','LineWidth',1.8), axis([0 640 2000 8000])
hold on
grid on
drawnow
end
end

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

Star Strider
Star Strider 2014-10-19

0 个投票

To produce a line that appears continuous, change your plots to:
plot(i+Seconds*128,Channel_1,'-r','LineWidth',1.8)
plot(i+Seconds*128,Channel_2,'-g','LineWidth',1.8)
The '--' linetype will plot a dashed line, the '-' linetype will plot a continuous one.

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Labels and Annotations 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by