12/19/2023 0 Comments Csv gps tracks to kmz python![]() ![]() Exporting canvas as a geotiff Georeferencing historical maps: We will convert this into a *.kmz in the next step. Here I am exporting WANow from Landgate, because it clearly shows the nuclear crater. You will need to export the map canvas as a geotiff. Enter a name, and your imagery provider URL:Īlternatively, you can add many popular ones in one go using this script in the Python console (recommended): Step 2. Right click on XYZ tiles in the browser to the right, and select ‘New Connection…’. Otherwise, you can add some freely available imagery, such as ESRI’s World Imagery. If you have a basemap already as a geotiff or similar, drop it into the main canvas. The workflow is similar for aerial imagery or historical maps - you just need to turn them into a geotiff. To get images (raster) data into GPS track, it needs to be georeferenced, then saved as a *.kmz. Waypoints loaded into GPS Tracks Raster data Otherwise, you can email the file to yourself, and open it in GPS Tracks there. If it doesn’t, then save it to Files, then use the Import option in the top right of the waypoints page. It should give you the option to open directly in the app. With GPS Tracks open on your iPhone, find the file on your Mac and AirDrop it. Importing this data onto your iPhone is simple, there are several ways described in the manual. Selected ‘Keyhole Markup Language’ in the format, choose where to save it and and keep the rest as default. In the lower left hand Layers pane, right click on the layer and select Export -> Save feature as. Be careful, if you choose wrong it can be many meters out! If you know the CRS, this is important, but for this dataset we can only presume it is in the most common, EPSG:4326 - WGS 84. Select your file, and it should figure out X is Lon, and Y is Lat. In the Layers menu at the top of the screen, go to Add Layer -> Add Delimited Text Layer. These can be placed in a spreadsheet using Excel or Numbers, using decimal degrees. ![]() Looking at the WA Museum Shipwrecks Database entry for HMS Plym, we can see some interesting underwater features listed. QGIS can import a spreadsheet of coordinates, which can be useful for relocating known sites. QGIS is cross-platform, but ArcGIS only supports Windows. They are each slightly better at different things, but a general user will not be limited by either. It shares the position as industry standard which the much for expensive ArcGIS. QGIS is a a free and open source GIS software. Looking for submerged sites in Murujuga on the Deep History of Sea Country fieldwork in 2019. In this example, we will prepare map data for fieldwork on atomic testing sites the Montebello Islands, Western Australia. For aerial images and historical maps, we need to convert it first to georeferenced *.tif format, then to *.kmz using Google Earth. For points and lines, this is as simple as exporting them as *.kml files from QGIS. The most convenient is *.kml or*.kmz files. To import data into GPS Tracks, we need to get it into a file type GPS Tracks understands. Those with Macs can AirDrop a *.kml or*.kmz right into GPS Tracks. There are more powerful options, but it’s easy to use and doesn’t cost too much. ![]() The GPS Tracks app (AUD $5.99) is the most suitable iPhone app I have tested for basic archaeological GIS.
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