Background: I am building an "autonomous chair side table" for my wife. The goal is to have the table carry her tea from the kitchen to whatever room she is in. As part of this project I am building a reasoning system that builds a map based on various inputs (that I call scanners). I store all the data in an RDF graph, because all data is a graph and I need to be able to annotate it in ways I have not discovered yet.
So basically I get sensor data that tells me an obstacle appears at a location. That goes into the system initially as a point, however processing may group it with other points using a convex hull calculation to convert a point cloud to an obstacle. I need to be able to determine if a path of a specific with (modeled as a line with a rounded-end buffer) can traverse the space between 2 points without touching the obstacles. So the functions I have been playing with are: - Geof.SF_OVERLAPS - Geof.SF_INTERSECTS - Geof.SF_TOUCHES - Geof.DISTANCE_NAME - SpatialExtension.NEARBY I may just revert to writing a couple of filter functions to do what I want, but I was trying to learn the existing library. Claude On Sat, Jan 6, 2024 at 10:47 AM Marco Neumann <marco.neum...@gmail.com> wrote: > In terms of geo you would talk about some sort of equidistant projection > that is available via the CRS/SRS.This is currently implemented with Apache > SIS in Jena. > > But it sounds like geo isn't really your thing here, so in conclusion > geosparql isn't either as it's all about geo data. > > What type of functions (access methods) would you like to perform on the > data? > > > > On Sat, Jan 6, 2024 at 8:24 AM Claude Warren <cla...@xenei.com> wrote: > > > Yes just x and y on a flat surface. > > > > On Sat 6 Jan 2024, 00:45 Marco Neumann, <marco.neum...@gmail.com> wrote: > > > > > Can you give an example? you just want to use x and y instead of WGS84 > > > coordinates? > > > > > > On Fri, Jan 5, 2024 at 11:28 PM Claude Warren <cla...@xenei.com> > wrote: > > > > > > > I want to use the geospatial capabilities of Jena but without the > > global > > > > shape. I am looking for a planar geometry (flat, like a small scale > > > map). > > > > Is there a way to specify this? > > > > > > > > Claude > > > > > > > > -- > > > > LinkedIn: http://www.linkedin.com/in/claudewarren > > > > > > > > > > > > > -- > > > > > > > > > --- > > > Marco Neumann > > > > > > > > -- > > > --- > Marco Neumann > -- LinkedIn: http://www.linkedin.com/in/claudewarren
