Re: [Qgis-user] [QGIS-Developer] Model for Temporal Measurement (vector) Datasets ?

2022-09-04 Thread Tim Sutton via Qgis-user
Hi Richard Thanks for clarifying your ideas. Could we not implement something similar to how WMS-T works in that we have a PostgreSQL-T provider extension for example that passes a time filter to the underlying data base request. In another system we are build for a client we have some logic to fe

Re: [Qgis-user] [QGIS-Developer] Model for Temporal Measurement (vector) Datasets ?

2022-09-04 Thread Brent Wood via Qgis-user
Hi Richard, I think the underlying issue here is that QGIS does not do data management... It just accesses data (whether not managed, managed or mismanaged). You are correct, the traditional GIS model of a feature with attributes does not map to the real world very well in many use cases, and t

Re: [Qgis-user] Model for Temporal Measurement (vector) Datasets ?

2022-09-04 Thread Anita Graser via Qgis-user
Hi Richard, On 02.09.2022 13:07, Richard Duivenvoorde wrote: Anybody is aware of a model in which data owns a location, but THAT location has a (growing) set of [timestamp, value] observation data to it MobilityDB has temporal temporal bools, ints, floats, texts, and geometries: https://do

Re: [Qgis-user] [QGIS-Developer] Model for Temporal Measurement (vector) Datasets ?

2022-09-04 Thread Richard Duivenvoorde via Qgis-user
On 9/4/22 15:27, Matthias Kuhn wrote: Hi Richard, It seems to me this should be possible using: 1. Two tables: - Points - Measurements (Timestamp, Measured attribute) 2.  A view (Points LEFT JOIN Measurements) What would be the actual result in your case (eg in the case of 2 points with 10

Re: [Qgis-user] [QGIS-Developer] Model for Temporal Measurement (vector) Datasets ?

2022-09-04 Thread Richard Duivenvoorde via Qgis-user
On 9/4/22 14:35, Tim Sutton wrote: Hi Richard Don’t people normally use things like https://www.timescale.com/

Re: [Qgis-user] [QGIS-Developer] Model for Temporal Measurement (vector) Datasets ?

2022-09-04 Thread Tim Sutton via Qgis-user
Hi Richard Don’t people normally use things like https://www.timescale.com/ For this? In any case some of our clients that are doing things like vehicle tracking are… Regards Tim Sent from my iPhone > On 2 Sep 2022, at 13:07, Richard Duivenvoorde via QGIS-Developer > wrote: > > Hi All,