Mapping beyond web mercator with GeoServer

This presentation covers information on advanced projections and how they are managed in GeoServer.

Transcript

1. Mapping beyond web mercator Ing. Andrea Aime GeoSolutions
2. GeoSolutions ⚫ Italian SME ⚫ Expertise • Image Processing, GeoSpatial Data Fusion • Java, Java Enterprise, C++, Python • JPEG2000, JPIP, Advanced 2D visualization ⚫ Supporting/Developing FOSS4G projects ⚫ GeoServer, MapStore ⚫ GeoNetwork, GeoNode, Ckan ⚫ Clients ⚫ Public Agencies ⚫ Private Companies ⚫ http://www.geo-solutions.it FOSS4G 2019, August 26th/30th, Bucharest
3. Why Web Mercator
4. Why: it’s everywhere, it’s free FOSS4G 2019, August 26th/30th, Bucharest
5. Why: familiar FOSS4G 2019, August 26th/30th, Bucharest
6. Why: easy FOSS4G 2019, August 26th/30th, Bucharest
7. Why: fair to the dateline FOSS4G 2019, August 26th/30th, Bucharest
8. Some reasons to avoid Web Mercator
9. One reason to rule them all FOSS4G 2019, August 26th/30th, Bucharest
10. Area distortion in web mercator FOSS4G 2019, August 26th/30th, Bucharest
11. Equal-area maps to the rescue Lambert azimuthal equal area Mollweide Equal Earth FOSS4G 2019, August 26th/30th, Bucharest
12. FAO example FOSS4G 2019, August 26th/30th, Bucharest
13. Distance perception http://braincrunch.tumblr.com/post/23672142073/mercators-egg FOSS4G 2019, August 26th/30th, Bucharest
14. Equidistant maps to the rescue FOSS4G 2019, August 26th/30th, Bucharest
15. Example: weather radar maps https://weather.gc.ca/radar/index_e.html?id=xsm FOSS4G 2019, August 26th/30th, Bucharest
16. Who ate the poles?! FOSS4G 2019, August 26th/30th, Bucharest
17. Polar stereographic http://www.add.scar.org/home/add6 FOSS4G 2019, August 26th/30th, Bucharest
18. Polar stereographic http://www.polarview.aq/ (also GeoServer powered) FOSS4G 2019, August 26th/30th, Bucharest
19. FAO Species Distribution FOSS4G 2019, August 26th/30th, Bucharest
20. And then… legislation FOSS4G 2019, August 26th/30th, Bucharest
21. And then… AUTO codes FOSS4G 2019, August 26th/30th, Bucharest
22. Handling all these projections
23. Should be simple no? FOSS4G 2019, August 26th/30th, Bucharest
24. One (tragic) example FOSS4G 2019, August 26th/30th, Bucharest UTM 32N
25. What’s going on? FOSS4G 2019, August 26th/30th, Bucharest
26. Automate! With APH FOSS4G 2019, August 26th/30th, Bucharest
27. Step 1: which data to read Requested Read FOSS4G 2019, August 26th/30th, Bucharest
28. Step 2: cut excess data FOSS4G 2019, August 26th/30th, Bucharest
29. Step 3: data wrapping Requested Read FOSS4G 2019, August 26th/30th, Bucharest
30. Step 4: densification FOSS4G 2019, August 26th/30th, Bucharest
31. Step 4: densification FOSS4G 2019, August 26th/30th, Bucharest
32. Step 5: reproject FOSS4G 2019, August 26th/30th, Bucharest
33. Step 6: detect dateline crossing FOSS4G 2019, August 26th/30th, Bucharest
34. Some side by side examples FOSS4G 2019, August 26th/30th, Bucharest
35. PDC Mercator, EPSG:3832 Antactica was here… Funny Greenland … FOSS4G 2019, August 26th/30th, Bucharest
36. Lambert conf. conic, EPSG:2225 ?!! FOSS4G 2019, August 26th/30th, Bucharest
37. Datum change, ED50, EPSG:4230 FOSS4G 2019, August 26th/30th, Bucharest
38. UTM32N, EPSG:32632 FOSS4G 2019, August 26th/30th, Bucharest
39. No reprojection, but Pacific centered Would really like to see Americas here… FOSS4G 2019, August 26th/30th, Bucharest
40. Some other hard data
41. Data between 0 and 360 FOSS4G 2019, August 26th/30th, Bucharest
42. Satellites satellites FOSS4G 2019, August 26th/30th, Bucharest
43. And more satellites FOSS4G 2019, August 26th/30th, Bucharest
44. Final words
45. The beginning of the end? FOSS4G 2019, August 26th/30th, Bucharest
46. In summary FOSS4G 2019, August 26th/30th, Bucharest
47. That’s all folks! Questions? info@geo-solutions.it