-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi all,
Standing on the shoulders of various other OSM contributors, I've written a BASH script [https://github.com/gregrs-uk/lidar2tiles] which uses GDAL to automatically process Environment Agency LIDAR 'composite' data and create map tiles which can be viewed in a browser or used in JOSM. Map tiles are coloured based on the height of surface features such as buildings and trees, calculated by subtracting the DTM from the DSM. This can make it easier to trace buildings more accurately because different roof heights are different colours. By default, features below 1m are transparent, meaning that buildings can easily be distinguished from ground level and the tiles can be viewed on top of Bing imagery, for example. The colours can be customised, of course. I've created map tiles for the area around Canterbury, which you can view here [http://gregrs.dev.openstreetmap.org/lidar]. They can be added to JOSM temporarily using this link [http://localhost:8111/imagery?title=EA%20LIDAR%20Open%20Data%20Canterbury&type=tms&url=http://gregrs.dev.openstreetmap.org/lidar/{zoom}/{x}/{-y}.png] if remote control is enabled, or added permanently as follows: * Click on Imagery > Imagery Preferences * Click on the '+ TMS' button * Enter the URL * http://gregrs.dev.openstreetmap.org/lidar/{zoom}/{x}/{-y}.png (note the -y) and a name for the layer * The layer will appear in the Imagery menu Please feel free to use the code [https://github.com/gregrs-uk/lidar2tiles] and to experiment! Greg - -- Twitter: @gregrs_uk http://gregrs.dev.openstreetmap.org PGP key ID: 64907C8A Fingerprint: EBD1 077F CCDD 841E A505 3FAA D2E8 592E 6490 7C8A -----BEGIN PGP SIGNATURE----- iQEcBAEBCAAGBQJZleZvAAoJEB7WhxSLszZlV9UH/jdRmsigIE/zd/NwiHEEpwiM JUGi2ZwX+CZsE+tZW64cccd4RPPAFNRdkOS60d9Iw+v3ouSEOng79OTPvrJXbuB/ W7JjRl1mYs/K3l9agHENovspSd9/GWJM5i/SMzZ7Mc2RPaK11DnZFgNddqIWsQfL /JMusJeMB6lV4n2i3+sJlNI2IMUKfxw4E4Pfk14DTy2+2Uohr/CGzmceGbVFvXy9 UIRj9lG55HnbM1NCqp7TKF5uuHtvnQUgCBcTFKKdahR3J9PXGKSTxJZU8kBbo4jn VAZ4uQMrmx8rgMZ7iU05si07ypkOhKefhG7AADm9QJPmmHjEwlJAsDUAv4By9cY= =DJjJ -----END PGP SIGNATURE----- _______________________________________________ Talk-GB mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-gb
