Hello,
I have municipalities (preferred as polygons, but point features also possible) with "journey time" from a central location as a continous metric attribute. For about 5 percent of the municipalities the attribute value is missing and I want to automatically generate a value for these features.
I have tried interpolation with inverse distance weighting which produces good results as raster data. However, I haven't figured out how to get values from the raster transferred into the original polygon or point features' attributes.
Now my questions are:
- How can I transfer values from raster data into (given) point or polygon features?
- Is there solution other than interpolation which is more practical? For example, it would be sufficient to generate an average value from all bordering polygons or points within a certain distance.
Thank you for your help!
Regards,
Alex