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Update Dev Notes

Jon Roeber 2024-01-22 03:14:41 +00:00
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Dev-Notes.md

@ -43,10 +43,12 @@ Next steps:
Elevation data tutorials/resources: Elevation data tutorials/resources:
- https://opensourceoptions.com/how-to-download-lidar-dems-digital-elevation-models-and-point-clouds-from-the-usgs/ - https://opensourceoptions.com/how-to-download-lidar-dems-digital-elevation-models-and-point-clouds-from-the-usgs/
- https://apps.nationalmap.gov/downloader/#/ (where to get DEMs from, no account needed) - https://apps.nationalmap.gov/downloader/#/ (where to get DEMs, no account needed)
- https://www.geodose.com/2017/08/how-to-use-arcgis-rest-api-service-qgis.html (how to get terrain in QGIS) - https://www.geodose.com/2017/08/how-to-use-arcgis-rest-api-service-qgis.html (how to get terrain in QGIS)
- https://www.geodose.com/2018/02/dem-3d-visualization-qgis.html (excellent tutorial, assume you have DEMs already) - https://www.geodose.com/2018/02/dem-3d-visualization-qgis.html (excellent tutorial, assume you have DEMs already)
3D maps need to be in a "projected" geography like Mercator, not spheroid like WGS-84.
## 20240117 ## 20240117
Example SQL query to create a `qgis_friendly` view that converts Cayenne GPS location into PostGIS point, includes unique ID, RSSI, time, and gatewayId, and filters on gatewayId: Example SQL query to create a `qgis_friendly` view that converts Cayenne GPS location into PostGIS point, includes unique ID, RSSI, time, and gatewayId, and filters on gatewayId: