Hi
i would like to interpolate a large data set with xyz and property in 3d. can interpolation be made directly into paraview?
Indeed, looks like you need to use ResampleWithDataSet/ResampleToImage filters.
Thanks Mathieu,
I am Resampling to Image and Paraview crashes. I have left the default setting with 100 for the resolution.
I also tried SPH volume interpolation and paraview crashes.
My data set is about 280K points and consits of UTM coordinates and MASL for elevation, plus a property of soil texture. I want to create a 3d interpolation of soil texture and be able to visualize. I can create smaller interpolations to view certain areas and increase resolution accordingly. Below is a screen shot and example of data set (first few lines).
| BH_ID | UTMZONE | EAST | NORTH | TOPMASL | Soil |
|---|---|---|---|---|---|
| 606361 | 17 | 653165 | 4789073 | 2.1608 | 0.0001 |
| 646555 | 17 | 620045 | 4837953 | 7.7312 | 0.0001 |
| 646555 | 17 | 620045 | 4837953 | 8.036 | 19 |
| 606361 | 17 | 653165 | 4789073 | 11 | 0.0001 |
| 636298 | 17 | 629785 | 4836153 | 18.4264 | 0.002 |
| 636298 | 17 | 629785 | 4836153 | 19.036 | 1.213 |
| 636298 | 17 | 629785 | 4836153 | 19.036 | 0.002 |
Did you identify the origin of the crash ? memory ? localized issues with your dataset?
Let us know if you need more help.
the dataset should be fine as i have prepared with Access, and imported into Grass Gis. i had to do some cleaning on the data but it worked. in terms of memory, i am using about 20% of ram, and then paraview does not respond, perhaps i shld wait longer. how long would that interpolation take?
Hi Mathieu,
for some reason the resample to image does not work or takes for ever. with Task manager, I can see that the cpu is been solicitated. what does the Sampling Dimensions mean. I have left to default (100) and my domain is quite large.
What method does it use for interpolation (resampling): nearest neighbor, iDW etc.?
thanks,
Hi,
I am able to Resample to Image if i keep the Sampling Dimensions to a low number (10) as per screenshot. If I understand correctly, resampling creates a regular mesh or grid, and assigns an attribute based on the dataset. How do we control this attribution to the mesh?
Weighted Interpolation or Nearest Neighbor.
https://www.vtk.org/doc/nightly/html/classvtkResampleToImage.html#details
https://www.vtk.org/doc/nightly/html/classvtkCompositeDataProbeFilter.html#details
https://www.vtk.org/doc/nightly/html/classvtkProbeFilter.html#details
https://www.vtk.org/doc/nightly/html/classvtkStaticCellLocator.html#details
https://www.vtk.org/doc/nightly/html/classvtkDataSetAttributes.html#a5a7b8fc265b598bcedbd6a54f818db6d
I am resampling to imarge with dimensions 100,100,100 and paraview is not responding and keeps using cpu and memory. i am able to run 3d delaynay triangles in few minutes.
