Select to view content in your preferred language

Point to Raster - how it works

1365
10
04-04-2022 06:16 AM
Labels (1)
AmyOKeefe
Emerging Contributor

I've been using the Point to Raster tool to convert XYZ bathymetry data.

I have selected the Cell Assignment Type as Minimum, but have just noticed in the Environments section that the raster storage resampling technique is Nearest Neighbour.

I'm just wondering are 2 interpolation methods going on in the background then? I'm trying to determine how accurate the raster is.

Tags (3)
0 Kudos
10 Replies
SteveLynch
Esri Regular Contributor

Please see the tool's help

 

SteveLynch_0-1649079037672.png

 

0 Kudos
AmyOKeefe
Emerging Contributor

This doesn't really answer my question. Thank you though

 

0 Kudos
SteveLynch
Esri Regular Contributor

PointToRaster does not do any interpolation in the background.

0 Kudos
AmyOKeefe
Emerging Contributor

I'm not quite sure how it works then, would you mind clarifying please?

0 Kudos
SteveLynch
Esri Regular Contributor

if you've picked Minimum and say 3 points with values 5,6,7 fall within a raster cell, then that cell will be assigned a value of 5.

Have you looked at How Point To Raster works

 

0 Kudos
AmyOKeefe
Emerging Contributor

Yes but where does the nearest neighbour come in with the pyramids?

I'm confused by the gridding process which creates the raster

0 Kudos
SteveLynch
Esri Regular Contributor
0 Kudos
AmyOKeefe
Emerging Contributor

interpolation was the wrong word used by myself. I meant proximity search. Your answer still isn't answering my question about are 2 processes going on

0 Kudos
SteveLynch
Esri Regular Contributor

Have you looked at How Point To Raster works