Volume calculation of CSV file
I have a CSV file with point cloud data of a terrain.
How do I use QGIS to calculate the volume of the terrain?
I tried using SAGA tool, natural neighbour, then use raster volume calculation.
However, I am pretty skeptical about the result.
I think the parameters in natural neighbour has not been set correctly. Can anyone advise me on this?
qgis csv point-cloud
asked Dec 31 '18 at 8:21
BrianBrian
111
add a comment |
I have a CSV file with point cloud data of a terrain.
How do I use QGIS to calculate the volume of the terrain?
I tried using SAGA tool, natural neighbour, then use raster volume calculation.
However, I am pretty skeptical about the result.
I think the parameters in natural neighbour has not been set correctly. Can anyone advise me on this?
qgis csv point-cloud
asked Dec 31 '18 at 8:21
BrianBrian
111
May be this will help you: gis.stackexchange.com/a/150314/87346
– eurojam
Dec 31 '18 at 11:12
add a comment |
I have a CSV file with point cloud data of a terrain.
How do I use QGIS to calculate the volume of the terrain?
I tried using SAGA tool, natural neighbour, then use raster volume calculation.
However, I am pretty skeptical about the result.
I think the parameters in natural neighbour has not been set correctly. Can anyone advise me on this?
qgis csv point-cloud
asked Dec 31 '18 at 8:21
BrianBrian
111
I have a CSV file with point cloud data of a terrain.
How do I use QGIS to calculate the volume of the terrain?
I tried using SAGA tool, natural neighbour, then use raster volume calculation.
However, I am pretty skeptical about the result.
I think the parameters in natural neighbour has not been set correctly. Can anyone advise me on this?
qgis csv point-cloud
qgis csv point-cloud
asked Dec 31 '18 at 8:21
BrianBrian
111
asked Dec 31 '18 at 8:21
BrianBrian
111
asked Dec 31 '18 at 8:21
BrianBrian
111
asked Dec 31 '18 at 8:21
BrianBrian
111
asked Dec 31 '18 at 8:21
BrianBrian
111
111
May be this will help you: gis.stackexchange.com/a/150314/87346
– eurojam
Dec 31 '18 at 11:12
add a comment |
May be this will help you: gis.stackexchange.com/a/150314/87346
– eurojam
Dec 31 '18 at 11:12
May be this will help you: gis.stackexchange.com/a/150314/87346
– eurojam
Dec 31 '18 at 11:12
May be this will help you: gis.stackexchange.com/a/150314/87346
– eurojam
Dec 31 '18 at 11:12
add a comment |
1 Answer
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I think the parameters in natural neighbour has not been set correctly.
The parameters in the natural neighbor are not usually a problem, the default Method and Fit values give good results in most cases.
What is important is that you do not compute the volume outside the contour of the terrain.
Make sure to Clip Raster by Mask Layer before computing the volume.
Can anyone advise me on this?
Use the TIN Interpolation instead. Draw the break lines in a vector layer and add them to the procedure. Rarely does a land have no break lines.
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I think the parameters in natural neighbour has not been set correctly.
The parameters in the natural neighbor are not usually a problem, the default Method and Fit values give good results in most cases.
What is important is that you do not compute the volume outside the contour of the terrain.
Make sure to Clip Raster by Mask Layer before computing the volume.
Can anyone advise me on this?
Use the TIN Interpolation instead. Draw the break lines in a vector layer and add them to the procedure. Rarely does a land have no break lines.
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
add a comment |
I think the parameters in natural neighbour has not been set correctly.
The parameters in the natural neighbor are not usually a problem, the default Method and Fit values give good results in most cases.
What is important is that you do not compute the volume outside the contour of the terrain.
Make sure to Clip Raster by Mask Layer before computing the volume.
Can anyone advise me on this?
Use the TIN Interpolation instead. Draw the break lines in a vector layer and add them to the procedure. Rarely does a land have no break lines.
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
add a comment |
I think the parameters in natural neighbour has not been set correctly.
The parameters in the natural neighbor are not usually a problem, the default Method and Fit values give good results in most cases.
What is important is that you do not compute the volume outside the contour of the terrain.
Make sure to Clip Raster by Mask Layer before computing the volume.
Can anyone advise me on this?
Use the TIN Interpolation instead. Draw the break lines in a vector layer and add them to the procedure. Rarely does a land have no break lines.
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
I think the parameters in natural neighbour has not been set correctly.
The parameters in the natural neighbor are not usually a problem, the default Method and Fit values give good results in most cases.
What is important is that you do not compute the volume outside the contour of the terrain.
Make sure to Clip Raster by Mask Layer before computing the volume.
Can anyone advise me on this?
Use the TIN Interpolation instead. Draw the break lines in a vector layer and add them to the procedure. Rarely does a land have no break lines.
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
answered Dec 31 '18 at 12:29
Gabriel De LucaGabriel De Luca
1,002112
1,002112
add a comment |
add a comment |
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May be this will help you: gis.stackexchange.com/a/150314/87346
– eurojam
Dec 31 '18 at 11:12