Re: [JPP-Devel] Has anybody done a "Nearest N" tool yet?

2011-04-20 Thread edgar . soldin
On 20.04.2011 16:21, Rahkonen Jukka wrote: > I have some ideas about improving the OpenJUMP GPS extension for making OJ > into a nice vector based moving map program. N nearest items from a point > would suit that use case. I mean queries like Find the closest gas station / > restaurant / stree

Re: [JPP-Devel] Has anybody done a "Nearest N" tool yet?

2011-04-20 Thread Rahkonen Jukka
Hi, I am just thinking what could be cool to have, I do not have any immediate need right now myself. However, I would say that the answer in both. I have some ideas about improving the OpenJUMP GPS extension for making OJ into a nice vector based moving map program. N nearest items from a point

Re: [JPP-Devel] Has anybody done a "Nearest N" tool yet?

2011-04-20 Thread Larry Becker
Hi Jukka, Do you want to find the N items nearest to a point or another item? I have a tool that looks out a specified distance from a selected feature and creates a new layer containing lines with arrowheads between all of the features. It puts the length in an attribute so you can use it as

[JPP-Devel] Has anybody done a "Nearest N" tool yet?

2011-04-20 Thread Rahkonen Jukka
Hi, I can find nearest features by having a source layer and a mask layer and doing a spatial query "is within distance" by incrementally increasing the distance parameter. It would be nice to have a tool or script for doing this automatically. Even better if the number of features to be found c