Getting particular scatter plots

2 次查看（过去 30 天）
Hari
Hari 2016-5-2
回答： Mike Garrity 2016-5-2
This is a picture of a scatter plot that I have plotted over an image from my raw data. I want to know the coordinates of the points that are inside the rectangle box that I have drawn. The raw data containing coordinates of all the scatter points is huge. So, is it possible to extract the coordinates of those group of points from the raw data alone somehow? Thank you!

请先登录，再回答此问题。

回答（1 个）

Mike Garrity
Mike Garrity 2016-5-2
Something like this perhaps:
hs = scatter(randn(1,1000),randn(1,1000),'.');
hr = rectangle('Position',[.5 .5 .65 .5]);
minx = hr.Position(1);
maxx = hr.Position(1) + hr.Position(3);
miny = hr.Position(2);
maxy = hr.Position(2) + hr.Position(4);
mask = hs.XData >= minx & hs.XData <= maxx ...
& hs.YData >= miny & hs.YData <= maxy;
x = hs.XData(mask);
y = hs.YData(mask);
hold on
scatter(x,y,'filled')

类别

在 Help Center 和 File Exchange 中查找有关 Scatter Plots 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