This post will cover creating an ImagePyramid data store with GeoServer.
If you have image files prepared, you can skip the “Prepare Files” section below.
Prepare files
We will use the Sydney GeoTIFF image from PlanetSAT geospatial-data-samples to create our pyramid.
Create new directory ‘sydney’ in your GeoServer data/data directory.
su - tomcat cd /home/tomcat-version/webapps/geoserver/data/data mkdir sydney cd sydney wget https://demo.planetobserver.com/PlanetObserver_PlanetSAT_10m_Australia_Sydney_UTM56.zip unzip PlanetObserver_PlanetSAT_10m_Australia_Sydney_UTM56.zip rm -f PlanetObserver_PlanetSAT_10m_Australia_Sydney_UTM56.zip
Now, still in our ‘sydney’ directory, let’s use gdal to create our tiles:
mkdir pyramid gdal_retile.py -v -r bilinear -levels 4 -ps 2048 2048 -co "TILED=YES" -co "COMPRESS=JPEG" -targetDir pyramid PlanetObserver_PlanetSAT_10m_Australia_Sydney_UTM56.tif
After this we can remove the large TIFF file.
Note: gdal_retile.sh is part of the gdal-bin package in Ubuntu.
Create a Workspace
We’ll create a workspace, called “pyramid” as below.
Create the Data Store
Go to Data / Stores/ Add New
Click on ImageMosaic in Raster Data Sources
Select our workspace (pyramid) and enter “sydney” as store name
Enter file:/data/sydney/pyramid as URL.
Click OK and then click Save
Create a New Layer
Go to Data / Layers / Add a new layer
Select the pyramid:sydney entry
Click on Publish.
You will be taken to the “Edit Layer” menu, where you can change some parameters.
You can edit various layer properties, as title, abstract, etc. In “Coverage Parameters” you can set ‘Multithreaded granule loading’, if you have multi-core CPU.
When ready, click the Save button.
View the Pyramid
Go to Data / Layer Preview
Find the “pyramid:sydney” in Name column. You can use the search box on top
Click on OpenLayers to view it. You can zoom in/out and move around the map.
You can learn more about the ImagePyramid Data Store at:
https://docs.geoserver.org/main/en/user/data/raster/imagepyramid.html