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EOFarm / geoportal.ypen.gr

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Map background #17

Closed kalxas closed 2 years ago

kalxas commented 2 years ago

We are going to evaluate the following map backgrounds for potential use:

kalxas commented 2 years ago

Right now OSM is used in the development environment

kalxas commented 2 years ago

http://geoportal.ypen.gr/tiles is now serving tiles from ktimanet.gr

image

kalxas commented 2 years ago

image

kalxas commented 2 years ago

Potential base maps:

https://eurogeographics.org/open-maps-for-europe-progress/

https://www.mapsforeurope.org/datasets/euro-global-map

kalxas commented 2 years ago

Today we got the required links from gys.gr

kalxas commented 2 years ago

gys.gr layers have been configured in GeoServer as Cascaded WMTS layers:

https://docs.geoserver.org/latest/en/user/data/cascaded/wmts.html

Used as standalone layers, they work fine in QGIS.

Unfortunately SLD styling is not supported for cascaded WMTS layers so a group style like the following cannot work:

<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor version="1.0.0" 
 xsi:schemaLocation="http://www.opengis.net/sld StyledLayerDescriptor.xsd" 
 xmlns="http://www.opengis.net/sld" 
 xmlns:ogc="http://www.opengis.net/ogc" 
 xmlns:xlink="http://www.w3.org/1999/xlink" 
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <!-- a Named Layer is the basic building block of an SLD document -->
  <NamedLayer>
    <Name>CARTO_Z0_Z8</Name>
    <UserStyle>
      <Title>CARTO_Z0_Z8</Title>
      <Abstract>CARTO_Z0_Z8</Abstract>
      <FeatureTypeStyle>
        <Rule>
          <Name>rule1</Name>
          <MinScaleDenominator>2311162.217155</MinScaleDenominator>
          <MaxScaleDenominator>600000000.00</MaxScaleDenominator>
          <RasterSymbolizer>
            <Opacity>1.0</Opacity>
          </RasterSymbolizer>
        </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
  <NamedLayer>
    <Name>CARTO_Z9_Z10_1200</Name>
    <UserStyle>
      <Title>CARTO_Z9_Z10_1200</Title>
      <Abstract>CARTO_Z9_Z10_1200</Abstract>
      <FeatureTypeStyle>
        <Rule>
          <Name>rule2</Name>
          <MinScaleDenominator>577790.554289</MinScaleDenominator>
          <MaxScaleDenominator>2311162.217155</MaxScaleDenominator>
          <RasterSymbolizer>
            <Opacity>1.0</Opacity>
          </RasterSymbolizer>
        </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
  <NamedLayer>
    <Name>CARTO_Z11_500</Name>
    <UserStyle>
      <Title>CARTO_Z11_500</Title>
      <Abstract>CARTO_Z11_500</Abstract>
      <FeatureTypeStyle>
        <Rule>
          <Name>rule3</Name>
          <MinScaleDenominator>288895.277144</MinScaleDenominator>
          <MaxScaleDenominator>577790.554289</MaxScaleDenominator>
          <RasterSymbolizer>
            <Opacity>1.0</Opacity>
          </RasterSymbolizer>
        </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
  <NamedLayer>
    <Name>CARTO_Z12_ERM250</Name>
    <UserStyle>
      <Title>CARTO_Z12_ERM250</Title>
      <Abstract>CARTO_Z12_ERM250</Abstract>
      <FeatureTypeStyle>
        <Rule>
          <Name>rule4</Name>
          <MinScaleDenominator>72223.819286</MinScaleDenominator>
          <MaxScaleDenominator>288895.277144</MaxScaleDenominator>
          <RasterSymbolizer>
            <Opacity>1.0</Opacity>
          </RasterSymbolizer>
        </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>
kalxas commented 2 years ago

Relative issue:

https://gis.stackexchange.com/questions/27472/geoserver-geowebcache-showing-raster-layers-depending-on-scale-zoom-level

kalxas commented 2 years ago

Implemented as layer group in GeoServer. Some example requests:

http://beta.geoportal.ypen.gr/geoserver/ows?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&BBOX=2177317.762178631034,3123616.742840894032,3611821.200355587993,6158143.246676764451&CRS=EPSG:3857&WIDTH=417&HEIGHT=881&LAYERS=basemap%3Abasemap_gys&STYLES=&FORMAT=image/png&DPI=96&MAP_RESOLUTION=96&FORMAT_OPTIONS=dpi:96&TRANSPARENT=TRUE

http://beta.geoportal.ypen.gr/geoserver/ows?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&BBOX=2468865.517361747567,4420688.289290538058,2939831.109613368753,4779519.216720344499&CRS=EPSG:3857&WIDTH=1155&HEIGHT=880&LAYERS=basemap%3Abasemap_gys&STYLES=&FORMAT=image/png&DPI=96&MAP_RESOLUTION=96&FORMAT_OPTIONS=dpi:96&TRANSPARENT=TRUE

http://beta.geoportal.ypen.gr/geoserver/ows?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&BBOX=2598839.787950668484,4540264.618232345209,2716581.186013574712,4629972.35008979775&CRS=EPSG:3857&WIDTH=1155&HEIGHT=880&LAYERS=basemap%3Abasemap_gys&STYLES=&FORMAT=image/png&DPI=96&MAP_RESOLUTION=96&FORMAT_OPTIONS=dpi:96&TRANSPARENT=TRUE

http://beta.geoportal.ypen.gr/geoserver/ows?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&BBOX=2625038.523277219385,4562589.610592325218,2683909.222308672965,4607443.476521051489&CRS=EPSG:3857&WIDTH=1156&HEIGHT=880&LAYERS=basemap%3Abasemap_gys&STYLES=&FORMAT=image/png&DPI=96&MAP_RESOLUTION=96&FORMAT_OPTIONS=dpi:96&TRANSPARENT=TRUE

kalxas commented 2 years ago

image

kalxas commented 2 years ago

Available as default in http://beta.geoportal.ypen.gr/geonetwork/srv/eng/catalog.search#/map

kalxas commented 2 years ago

Link about changing the base layer in the GeoNetwork UI

https://www.geocat.net/setting-up-geonetwork-with-dutch-pdok-tile-services/

grigoriouelena commented 2 years ago

The Editor Map was changed also, using the same configuration as the other maps in the catalog.

image

The result is this:

image

(visible when editing a metadata record)

Unfortunately, I did not find any information on changing the background map of the spatial extent thumbnail in the metadata view.

image

Could the info found here be any relevant?

kalxas commented 2 years ago

No, we have already applied this change.

kalxas commented 2 years ago

https://sourceforge.net/p/geonetwork/mailman/geonetwork-users/thread/CA%2B%3DcGJkKoCyaJz8pSVD2moHnNRNbHvUO59%2B6KiPmeWXPZ6nZCw%40mail.gmail.com/#msg35220815

grigoriouelena commented 2 years ago

As I understand, this is something we cannot change at the moment.

Before we close the issue, I noticed that when the user zooms in until there are no available tiles for the zoom level, the map disappears. Is it possible to limit the zoom to the zoom level of the available tiles?

And, finally, is it possible to configure the basemap to its actual extent when the user clicks on "Zoom to initial map extent"? image

kalxas commented 2 years ago

Before we close the issue, I noticed that when the user zooms in until there are no available tiles for the zoom level, the map disappears. Is it possible to limit the zoom to the zoom level of the available tiles?

I do not see this option in the GeoNetwork UI

And, finally, is it possible to configure the basemap to its actual extent when the user clicks on "Zoom to initial map extent"?

I am going to look into this.

kalxas commented 2 years ago

Adding some default extents:

image

The resolutions "add" option does not seem to work.

kalxas commented 2 years ago

And, finally, is it possible to configure the basemap to its actual extent when the user clicks on "Zoom to initial map extent"?

I am going to look into this.

This does not seem to respect the bbox given in the UI Settings

kalxas commented 2 years ago

basemap_gys layer group re-configured

kalxas commented 2 years ago

Final basemap configured