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Advanced Cartographic Map Rendering In GeoServer
 

Advanced Cartographic Map Rendering In GeoServer

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Various software can style maps and generate a proper SLD document for OGC-compliant WMS. However the styling allowed by the graphical tools is often limited and not adequate for good cartographic ...

Various software can style maps and generate a proper SLD document for OGC-compliant WMS. However the styling allowed by the graphical tools is often limited and not adequate for good cartographic output. This presentation will provide hints, examples and enough information to master SLD in order to create beautiful maps with GeoServer.

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    Advanced Cartographic Map Rendering In GeoServer Advanced Cartographic Map Rendering In GeoServer Presentation Transcript

    • Advanced cartographic map rendering in GeoServer Ing. Andrea Aime, GeoSolutions Ing. Alessio Fabiani, GeoSolutions FOSS4G 2013, Nottingham 17th-22th September 2013
    • Overview  Who we are  Example map  Raster styling  Scale dependent rules  Hatches, patterns and dashes  Point Symbology  Labeling  Transformations  Cross layer filtering FOSS4G 2013, Nottingham 17th-22th September 2013
    • GeoSolutions  Founded in Italy in late 2006  Expertise • • Java, Java Enterprise, C++, Python •  Image Processing, GeoSpatial Data Fusion JPEG2000, JPIP, Advanced 2D visualization Supporting/Developing FOSS4G projects    GeoTools, GeoServer GeoBatch, GeoNetwork Clients    Public Agencies Private Companies http://www.geo-solutions.it FOSS4G 2013, Nottingham 17th-22th September 2013
    • Introduction FOSS4G 2013, Nottingham 17th-22th September 2013
    • SLD vs CSS  Styled Layer Descriptor   XML based, verbose, hard to hand edit   OGC standard Only showing relevant bits of the SLD Cascading Style Sheets  CSS with extensions for map rendering  Simple, Compact, designed for human beings   Not a standard (several incompatible variants for mapping) Showing the full style, it’s that short FOSS4G 2013, Nottingham 17th-22th September 2013
    • Example map FOSS4G 2013, Nottingham 17th-22th September 2013
    • Example map FOSS4G 2013, Nottingham 17th-22th September 2013
    • Example map FOSS4G 2013, Nottingham 17th-22th September 2013
    • Example map FOSS4G 2013, Nottingham 17th-22th September 2013
    • Example map FOSS4G 2013, Nottingham 17th-22th September 2013
    • Raster styling FOSS4G 2013, Nottingham 17th-22th September 2013
    • A DEM and a color map  SRTM from USGS  Standard color map  Just avoid the nodata values with opacity=0 FOSS4G 2013, Nottingham 17th-22th September 2013
    • A DEM and a color map  Same as before, in CSS  Solid intervals FOSS4G 2013, Nottingham 17th-22th September 2013
    • Scale dependent rules FOSS4G 2013, Nottingham 17th-22th September 2013
    • Scale dependent rules  Too often forgotten or little used, yet very important:     Hide layers when too zoomed in (raster/vector example) Progressively show details Add more expensive rendering when there are less features Key to any high performance / good looking map FOSS4G 2013, Nottingham 17th-22th September 2013
    • Example FOSS4G 2013, Nottingham 17th-22th September 2013
    • Hide as you zoom in   Add a MinScaleDenominator to the rule This will make the layer disappear at 1:75000 (towards 1:1) FOSS4G 2013, Nottingham 17th-22th September 2013
    • Alternative rendering   Simple rendering at low scale (up to 1:2000) More complex rendering when zoomed in (1:1999 and above) FOSS4G 2013, Nottingham 17th-22th September 2013
    • Alternative rendering FOSS4G 2013, Nottingham 17th-22th September 2013
    • Alternative rendering, CSS way FOSS4G 2013, Nottingham 17th-22th September 2013
    • Hatches, patterns, dashes and plates FOSS4G 2013, Nottingham 17th-22th September 2013
    • Filling with patterns FOSS4G 2013, Nottingham 17th-22th September 2013
    • Filling with TTF fonts FOSS4G 2013, Nottingham 17th-22th September 2013
    • Hatches FOSS4G 2013, Nottingham 17th-22th September 2013
    • Hatches vertiline horline slash backslash plus times FOSS4G 2013, Nottingham 17th-22th September 2013
    • Dashes FOSS4G 2013, Nottingham 17th-22th September 2013
    • Dashes FOSS4G 2013, Nottingham 17th-22th September 2013
    • Plates FOSS4G 2013, Nottingham 17th-22th September 2013
    • Plates CSS way FOSS4G 2013, Nottingham 17th-22th September 2013
    • Point Symbology FOSS4G 2013, Nottingham 17th-22th September 2013
    • Point symbols • 600 loc for 6 different points types • Painful… FOSS4G 2013, Nottingham 17th-22th September 2013
    • Point symbols … • 70 lines total • Power of cascading FOSS4G 2013, Nottingham 17th-22th September 2013
    • Prepare data     alter table pointlm add column image varchar; update pointlm set image = 'shop_supermarket.p.16.png' where MTFCC = 'C3081' and (FULLNAME like '%Shopping%' or FULLNAME like '%Mall%'); update pointlm set image = 'peak.png' where MTFCC = 'C3022' update pointlm set image = 'amenity_prison.p.20.png' where MTFCC = 'K1236';  update pointlm set image = 'museum.p.16.png' where MTFCC = 'K2165';  update pointlm set image = 'airport.p.16.png' where MTFCC = 'K2451';  update pointlm set image = 'school.png' where MTFCC = 'K2543';   update pointlm set image = 'christian3.p.14.png' where MTFCC = 'K2582'; update pointlm set image = 'gate2.png' where MTFCC = 'K3066'; FOSS4G 2013, Nottingham 17th-22th September 2013
    • Dynamic symbolizers FOSS4G 2013, Nottingham 17th-22th September 2013
    • Dynamic symbolizers CSS way • Down to 15 lines FOSS4G 2013, Nottingham 17th-22th September 2013
    • Labeling FOSS4G 2013, Nottingham 17th-22th September 2013
    • Line labels FOSS4G 2013, Nottingham 17th-22th September 2013
    • Line labels (and more) CSS way FOSS4G 2013, Nottingham 17th-22th September 2013
    • Point labels FOSS4G 2013, Nottingham 17th-22th September 2013
    • Polygon labels FOSS4G 2013, Nottingham 17th-22th September 2013
    • Label Obstacles FOSS4G 2013, Nottingham 17th-22th September 2013
    • Transformations FOSS4G 2013, Nottingham 17th-22th September 2013
    • Geometry transformations FOSS4G 2013, Nottingham 17th-22th September 2013
    • Geometry transformations CSS way FOSS4G 2013, Nottingham 17th-22th September 2013
    • Geometry transformations FOSS4G 2013, Nottingham 17th-22th September 2013
    • Rendering transformations • No CSS support yet FOSS4G 2013, Nottingham 17th-22th September 2013
    • Rendering transformations FOSS4G 2013, Nottingham 17th-22th September 2013
    • Get it all  In a few days you will be able to find:    Full data, styles and configuration, ready to use Get the slides Be on the lookout:  http://geo-solutions.blogspot.com/ FOSS4G 2013, Nottingham 17th-22th September 2013
    • The End Questions? andrea.aime@geo-solutions.it simone.giannecchini@geo-solutions.it FOSS4G 2013, Nottingham 17th-22th September 2013