I need a direct link to download the JAR file of JMapViewer. The problem is that I found one link but all what is providing to me is a zipped folder containing text files(not binary files)!The link I used is:
Download Jmapviewer 1
I see this problem only in the imagery preferences (see ticket:16301#comment:70). The download window and the mapview work fine for me. See console log below, the first are from the preferences and the last from the mapview. The first are rejected while the last work fine despite both use the same URL pattern />
Experience has shown that using separately packaged metadata-extractor and svgsalamander made backporting JOSM tested for Debian stable a PITA. Once the embedded copies were used this was much less of a problem. The separately packaged JMapViewer has also broken freeplane on more than one occasion, forcing stable users to choose whether to have the josm backport installed (which requires a newer jmapviewer) or a working freeplane.
Because these recent changes make building JOSM from source in a Debian build environment unfeasible when backports are required as well, we'll have to remove the josm package from Debian and replace it with an installer that downloads the pre-built JAR. This is not very good either (because the JARs don't have hashes nor cryptographic signatures to verify the download with), but at least it will keep JOSM tested easily available to users of Debian stable (assuming the josm-installer package passes FTP master review).
The jmapviewer nexus deploy currently relies on a very unreliable Jenkins job: -JMapViewer/We should make something most robust. Ideally from Ant? Something like an "ant release" target? For the old releases I can import them manually.
But what's the best way to use JMapViewer in a JOSM plugin at the moment? I installed IvyDE in Eclipse and had it resolve, it added a reference to jmapviewer-2.13.jar. I then added that jar (from the Ivy cache directory) manually to the referenced libraries of my plugin. Is that the way to go as of right now or am I just not getting how Ivy is supposed to work?
The library used to create the main map on openstreetmap.org, Mapnik, is open source and available as Windows binaries. This would allow you to have an identical map style to OpenStreetMap, but only have to download and process a minimal amount of data.
osmdroid uses two components to display map imagery, the Tile Provider and the Tile Source. The Tile Provider is used to determine how to load tiles (online, offline, assets folders, etc). The Tile Source determines what imagery set is displayed, such as Bing, Mapquest, Mapnik, etc. The default Tile Provider, searches the following for your Tile Source, Assets, Offline zip/sqlite/etc in (/sdcard/osmdroid), Downloaded tile cache (/sdcard/osmdroid/tiles) and then finally the downloader. There are other alternate providers included with osmdroid that change the way tiles are loaded offline. osmdroid has a number of alternative providers that use other libraries like MapForge and Geopackage to generate tiles on the fly using OSM data while offline.
One of the features of osmdroid is the customizable tile provider chain. This provides the ability to mix and match various tile provider modules to create a specific tile retrieval strategy. The MapTileProviderBasic tile provider provides a default set of tile provider modules that includes a file cache, an archive provider, and a download provider. For most users this covers the basics, but you can build you own custom tile provider chain.
You can use the jMapViewer as you would normally do. The difference with the original code base is the addition of the class OfflineOsmTileSource in the package org.openstreetmap.gui.jmapviewer.tilesources.
Osm2garminGUI - OpenStreetMap Wiki Osm2garminGUI Osm2garminGUI is a Java/NetBeans RCP application which allows to download OpenStreetMap data for the whole planet, update existing planet data, add terrain contours generated from SRTM3 database and generate garmin-compatible maps in a single step.
Offline Map Maker is a tool that helps you get offline tile images from Google Maps, Yahoo maps, Bing maps. All downloaded offline images are saved on your disk. Offline Map Viewer also lets you view the downloaded offline map. You can zoom out or zoom in the offline map, or output the offline map to a .BMP file with a world file xxx.bpw.
Typical web services for geospatial data create data on the fly, and give access to this through an API. As an example, data from OpenStreetMap can be bulk downloaded and read locally, e.g. using the GDAL vector driver, but more typical a user wants to obtain a small subset of the data or use the data for a small query. Several R packages exist that query OpenStreetMap data:
A common challenge with raster datasets is not only that they come in large files (single Sentinel-2 tiles are around 1 GB), but that many of these files, potentially thousands or millions, are needed to address the area and time period of interest. At time of writing this, the Copernicus program that runs all Sentinel satellites publishes 160 TB of images per day. This means that a classic pattern in using R, consisting of downloading data to local disc, loading the data in memory and analysing it is not going to work.
At some stage, datasets need to be analysed that are so large that downloading them is no longer feasible; even when local storage would be sufficient, network bandwidth may become limiting. Examples are satellite image archives such as those from Landsat and Copernicus (Sentinel-x), or model computations such as the ERA5 (Hersbach et al. 2020), a model reanalysis of the global atmosphere, land surface and ocean waves from 1950 onwards. In such cases it may be most helpful to gain access to virtual machines in a cloud that have these data available, or to use a system that lets the user carry out computations without having to worry about virtual machines and storage. Both options will be discussed. 2ff7e9595c
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