How to get brushed data point index or coordinate from a 3D Plot?

Hello everyone.

I have a 3D plot made using plot3 and I would like to brush data from the plot and get back the index/coordinates of the brushed points. For that I'm trying to use the brush tool. I found a lot of question but not a clear answer for a 3D plot. This link (https://it.mathworks.com/matlabcentral/answers/385226-how-to-use-the-data-brush-tool-to-automatically-save-selected-points-in-multiple-line-plots) gives a solution but it seems that it doesn't work for a 3D plot. These are the data that I'm plotting and I would like to work on with the brush tool.

Pos=[-77.0871000000000,49.0849000000000,-1.78439000000000;-77.3056000000000,62.9298000000000,-1.79021000000000;-112.057000000000,49.1500000000000,-2.23801000000000;-130.987000000000,63.0496000000000,-2.49772000000000;-84.5025000000000,74.5152000000000,-1.79890000000000;-48.0342000000000,123.030000000000,-1.07363000000000;-46.1473000000000,148.599000000000,-0.788758000000000;-60.3364000000000,158.017000000000,-0.765587000000000;-55.5295000000000,150.991000000000,-0.835239000000000;-77.5969000000000,204.910000000000,-0.372025000000000;-55.9547000000000,174.323000000000,-0.553898000000000;-90.0147000000000,237.949000000000,0.124520000000000;-83.0690000000000,242.606000000000,0.299160000000000;-85.0367000000000,223.787000000000,-0.0354042000000000;-61.4736000000000,218.871000000000,0.0409176000000000;-61.7632000000000,232.992000000000,0.351617000000000;-83.9893000000000,172.176000000000,-0.864933000000000;-106.728000000000,249.891000000000,0.198643000000000;-95.4340000000000,271.076000000000,0.807391000000000;-77.1318000000000,296.928000000000,1.46174000000000;-71.5515000000000,254.276000000000,0.572107000000000;-65.1295000000000,284.953000000000,1.30063000000000;-53.3720000000000,284.821000000000,1.36086000000000;-49.1129000000000,183.624000000000,-0.367095000000000;-70.5364000000000,202.525000000000,-0.265945000000000;-139.879000000000,257.292000000000,0.0624518000000000;-158.696000000000,252.774000000000,-0.0256410000000000;-102.401000000000,155.937000000000,-1.29030000000000;-113.701000000000,135.004000000000,-1.62848000000000;-114.581000000000,177.072000000000,-1.06902000000000;-125.704000000000,149.061000000000,-1.63928000000000;-116.234000000000,144.345000000000,-1.55709000000000;-110.720000000000,102.421000000000,-1.88425000000000;-92.2718000000000,116.283000000000,-1.57063000000000;-141.306000000000,109.511000000000,-2.20037000000000;-171.676000000000,104.954000000000,-2.73569000000000;-168.926000000000,86.3366000000000,-2.86015000000000;-138.428000000000,83.9366000000000,-2.41759000000000;-121.910000000000,76.9308000000000,-2.25826000000000;-114.873000000000,191.128000000000,-0.888279000000000;-43.2178000000000,113.726000000000,-1.10431000000000;-133.061000000000,163.138000000000,-1.48366000000000;-43.2577000000000,116.047000000000,-1.08007000000000;-146.548000000000,135.171000000000,-1.97689000000000;-65.5535000000000,55.9816000000000,-1.65558000000000;-69.9526000000000,39.8507000000000,-1.73391000000000;-48.8588000000000,28.3079000000000,-1.51243000000000;-25.2249000000000,-6.12415000000000,-1.14503000000000;-13.3423000000000,-29.0091000000000,-1.16509000000000;16.6515000000000,-31.2525000000000,-0.780233000000000;32.6219000000000,-17.5402000000000,-0.679093000000000;25.6429000000000,-10.6962000000000,-0.761514000000000;9.53395000000000,-12.9853000000000,-0.897955000000000;2.58906000000000,-10.7015000000000,-0.985858000000000;-34.2558000000000,-22.1714000000000,-1.30195000000000;-55.0407000000000,-26.7655000000000,-1.52155000000000;-24.7224000000000,-45.0144000000000,-1.11548000000000;-3.64032000000000,-72.3385000000000,-0.791610000000000;14.9751000000000,-92.7517000000000,-0.455504000000000;12.6751000000000,-92.7607000000000,-0.471513000000000;2.13137000000000,25.9536000000000,-0.956257000000000;-76.0188000000000,-19.9127000000000,-1.78773000000000;24.8199000000000,60.3643000000000,-0.761241000000000;16.0655000000000,21.3439000000000,-0.937785000000000;22.6189000000000,51.1753000000000,-0.777079000000000;-9.23410000000000,19.0381000000000,-1.63527000000000;-0.874601000000000,-117.812000000000,-0.441541000000000;8.53739000000000,-142.724000000000,-0.0419276000000000;-19.0474000000000,-142.889000000000,-0.353302000000000;-33.0286000000000,-127.065000000000,-0.671494000000000;-31.5684000000000,-51.8812000000000,-1.18054000000000;-11.7447000000000,-188.179000000000,0.333837000000000;-27.8277000000000,-188.298000000000,0.119554000000000;-25.2536000000000,-219.974000000000,0.644616000000000;-11.5588000000000,-210.815000000000,0.694263000000000;-7.75112000000000,-120.118000000000,-0.509151000000000;-24.0674000000000,-102.007000000000,-0.807470000000000;-31.2431000000000,-79.2633000000000,-1.04147000000000;-2.22285000000000,-228.817000000000,1.00866000000000;-31.4394000000000,-63.2991000000000,-1.08576000000000;-37.7265000000000,-120.266000000000,-0.725351000000000;-58.4477000000000,-124.920000000000,-0.957239000000000;-72.2365000000000,-131.820000000000,-1.06026000000000;-93.0199000000000,-134.211000000000,-1.35777000000000;-88.1806000000000,-152.397000000000,-1.06029000000000;-104.821000000000,-116.040000000000,-1.75762000000000;-87.9686000000000,-170.576000000000,-0.840068000000000;-109.716000000000,-97.8078000000000,-1.93607000000000;-100.700000000000,-79.4920000000000,-1.88716000000000;-79.4992000000000,-104.521000000000,-1.44293000000000;-102.171000000000,-143.368000000000,-1.37396000000000;-68.2192000000000,-81.6687000000000,-1.42696000000000;-67.9650000000000,-102.194000000000,-1.26880000000000;-90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plot3(Pos(:,1),Pos(:,2),Pos(:,3), 'o');
axis equal;
view(0,90)
brush on
h = brush;

Any help is really appreciated. Thank you in advance for the reply.

Answer 1

[Divya Gaddipati]

Hi,

The following snippet might be of help to you.

Handle = plot3(Pos(:,1),Pos(:,2),Pos(:,3), 'o');
axis equal;
view(0,90)
brush on

Select the required data and run the following to get the brushed points:

xd = get(Handle, 'XData');
yd = get(Handle, 'YData');
zd = get(Handle, 'ZData');
brush = get(Handle, 'BrushData');
brushed_x = xd(logical(brush));
brushed_y = yd(logical(brush));
brushed_z = zd(logical(brush));

figure, plot3(brushed_x, brushed_y, brushed_z, 'o');

Hope this helps!

[MJ]

How do you get the indices? for some reason the size of Pos and size of brush are different

[Edwin Henry Jara Bardales]

How could I use the part of "handles" in App designer?