Mapping beyond 3857 Ing. Andrea Aime GeoSolutions GeoSolutions - - PowerPoint PPT Presentation

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Mar 10, 2024 148 likes •613 views

Mapping beyond 3857 Ing. Andrea Aime GeoSolutions GeoSolutions Italian SME Expertise Image Processing, GeoSpatial Data Fusion Java, Java Enterprise, C++, Python JPEG2000, JPIP, Advanced 2D visualization

SLIDE 1

Mapping beyond 3857

Ing. Andrea Aime

GeoSolutions

SLIDE 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 2015, Seoul 14th-19th September 2015

SLIDE 3

Why EPSG:3857

FOSS4G-EU 2015, Como 14th-17th July 2015

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Why: it’s everywhere, it’s free

FOSS4G 2015, Seoul 14th-19th September 2015

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Why: familiar

FOSS4G 2015, Seoul 14th-19th September 2015

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Why: easy

FOSS4G 2015, Seoul 14th-19th September 2015

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Why: fair to the dateline

FOSS4G 2015, Seoul 14th-19th September 2015

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Some reasons why NOT DO EPSG:3857

FOSS4G 2015, Seoul 14th-19th September 2015

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One reason to rule them all

FOSS4G 2015, Seoul 14th-19th September 2015

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Area distortion in web mercator

FOSS4G 2015, Seoul 14th-19th September 2015

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Equal-area maps to the rescue

FOSS4G 2015, Seoul 14th-19th September 2015 Lambert azimuthal equal area Mollweide

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FAO example

FOSS4G 2015, Seoul 14th-19th September 2015

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Distance perception

FOSS4G 2015, Seoul 14th-19th September 2015 http://braincrunch.tumblr.com/post/23672142073/mercators-egg

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Equidistant maps to the rescue

FOSS4G 2015, Seoul 14th-19th September 2015

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Example: weather radar maps

FOSS4G 2015, Seoul 14th-19th September 2015 https://weather.gc.ca/radar/index_e.html?id=xsm

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Who ate my poles?!

FOSS4G 2015, Seoul 14th-19th September 2015

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Polar stereographic

FOSS4G 2015, Seoul 14th-19th September 2015 http://www.add.scar.org/home/add6

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Polar stereographic

FOSS4G 2015, Seoul 14th-19th September 2015 http://www.polarview.aq/ (also GeoServer powered)

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FAO Species Distribution

FOSS4G 2015, Seoul 14th-19th September 2015

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Handling all these projections

FOSS4G 2015, Seoul 14th-19th September 2015

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Should be simple no?

FOSS4G 2015, Seoul 14th-19th September 2015

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Some examples

FOSS4G 2015, Seoul 14th-19th September 2015

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Focusing on the pacific

FOSS4G 2015, Seoul 14th-19th September 2015 Would really like to see Americas here…

SLIDE 24

PDC Mercator, EPSG:3832

FOSS4G 2015, Seoul 14th-19th September 2015 Antactica was here… Funny Greenland …

SLIDE 25

Lambert conf. conic, EPSG:2225

FOSS4G 2015, Seoul 14th-19th September 2015

?!!

SLIDE 26

Datum change, ED50, EPSG:4230

FOSS4G 2015, Seoul 14th-19th September 2015

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UTM32N, EPSG:32632

FOSS4G 2015, Seoul 14th-19th September 2015

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What’s going on?

FOSS4G 2015, Seoul 14th-19th September 2015

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And then… AUTO codes

FOSS4G 2015, Seoul 14th-19th September 2015

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Automate! With APH

FOSS4G 2015, Seoul 14th-19th September 2015

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APH step 1: which data to read

FOSS4G 2015, Seoul 14th-19th September 2015 Requested Read

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APH step 2: cut excess data

FOSS4G 2015, Seoul 14th-19th September 2015

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APH step 3: data wrapping

FOSS4G 2015, Seoul 14th-19th September 2015 Requested Read

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APH step 4: detect dateline crossing

FOSS4G 2015, Seoul 14th-19th September 2015

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Let’s try again

FOSS4G 2015, Seoul 14th-19th September 2015

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Focusing on the pacific

FOSS4G 2015, Seoul 14th-19th September 2015

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PDC Mercator, EPSG:3832

FOSS4G 2015, Seoul 14th-19th September 2015

SLIDE 38

Lambert conf. conic, EPSG:2225

FOSS4G 2015, Seoul 14th-19th September 2015

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Datum change, ED50, EPSG:4230

FOSS4G 2015, Seoul 14th-19th September 2015

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UTM32N, EPSG:32632

FOSS4G 2015, Seoul 14th-19th September 2015

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What’s cooking

FOSS4G 2015, Seoul 14th-19th September 2015

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Data between 0 and 360

FOSS4G 2015, Seoul 14th-19th September 2015

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APH step 2.5:dynamic densification

FOSS4G 2015, Seoul 14th-19th September 2015

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Odds and ends

FOSS4G 2015, Seoul 14th-19th September 2015

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That’s all folks!

Questions?

info@geo-solutions.it

FOSS4G 2015, Seoul 14th-19th September 2015