Script for extracting data from multiple points.

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JohnWayne
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Script for extracting data from multiple points.

Post by JohnWayne »

Hello,

I have this project now where i need to measure the Z value of points on a floor for every 60 x 60 cm. And well, the area is quite large.
The only way i know to do this is Analysis -> measure point, and do them all manually.

Is there maybe a script to do this? Doesn't seem like a difficult script to make, if you know how to do it, that is.

Thanks,
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gilles_3DR
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Re: Script for extracting data from multiple points.

Post by gilles_3DR »

Hi Brynjar,
did you have a look at the Grid Projection functionality? (Extract/Cloud menu).
Seems to me like this is what you are looking for!
Or Points on Grid if points need to be extracted on a point cloud!
JohnWayne
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Re: Script for extracting data from multiple points.

Post by JohnWayne »

Hi Gilles, thanks for your fast reply.

I have actually looked into that. points on grid etc. This have given me this result:
However the measures are all manually placed by clicking on each point (on the first picture). So getting the actuall points i need, I can do.
(This is only a test area, the actual floor is far larger.)
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Leandre Robitaille
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Re: Script for extracting data from multiple points.

Post by Leandre Robitaille »

Export the area you want as e57 with a decimation at 60cm.

Import the .e57 in cloudcompare.

save it as a .txt

open the txt, the first values of each rows will be X,Y,Z coordinates, separated with a space, you can import that in excel if you want.
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Re: Script for extracting data from multiple points.

Post by daniel.jansson »

Is this what you want?

1. Run points on grid.
1.b Or Grid Projection and skip step 2.
2. Run distance filter with lower value than points on grid.
3. Show only the new grid points you want labels of.
4. Run script:

Code: Select all

var points = SPoint.All(1);

for(var i = 0; i < points.length; i++) {
    var label = SLabel.New(1, 1);
    SLabel.SetSizeType(SLabel.MEDIUM);
    label.AttachToPoint(points[i]);
    label.SetLineType([SLabel.ZZ]);
    label.SetColType([SLabel.Measure]);
    label.SetCell(0, 0, points[i].GetZ());
    label.AddToDoc();
}
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