Latest Contributions by GordonSumerling

Hello @cskari see this page by the NSW governement https://www.spatial.nsw.gov.au/surveying/geodesy/projections It should provide all the information you require   ... View more

@AlexWellsYSE I am thinking the issue you see here is that the source imagery is GRID. This format is not one file but a complex structure. As a rule of thumb if I get these format images datasets I convert them to 32Bit tiff files. These then beome single files that are accessed by the Mosaic dataset and makes it simpler to process before loading to ArcGIS Online. ... View more

@JM32  The challenge with a large image cache is that it needs to be continually updated with new image acquisitions so the most recent imagery is always present. This is done by building Mosaic Datasets for the newly acquired imagery. Caching these Mosaic Datasets and then replacing the tiles in the Master cache with the new cache tiles. The process is as follows: Build Mosaic Dataset and add rasters for (Updated areas) Optimise the image footprints to exclude No Data Build Footprints Create Tile Cache using Manage Tile Cache with same Tiling Scheme used previously Append updated Cache to existing cache using Import Tile Cache ... View more

@Blevins_Mark For Elevation We generally use the LERC compressed tile cache while for 3 Band RGB we use the mixed format (jpg & Png). This allows for transparency along the edges. Additionally, I can't see a coordinate system in your images. If you are using WGS84 Web Mercator then I would suggest just using the Manage Tile Cache tool and Pick Elevation Tiling Scheme for the DSM and ArcGIS Online Tiling Scheme for the Ortho.  These then use LERC by default for Elevation and Mixed for the Ortho. ... View more