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Layer List Dialog

List of currently loaded layers. There are different types of layers. Each has a Context Menu accessed from the right mouse button which provides operations on the layer; all of them have a visibility control for the layer.

• OSM Data Layer (menu): holds the OpenStreetMap data (nodes, segments, ways, ...). At the moment, only one data layer exists.
• GPX Layer (menu): holds the GPS data loaded from your local hard disk (by using the open dialog to load GPX files) or from openstreetmap. The context menu (right mouse click on layer in layer list) allows to set special properties for different gps layers (different colors, line style, etc.).
• Marker Layer (menu): Markers are specially identified points on the track. They come in four varieties: simple named markers, audio markers, image markers and web markers. They are created as a side effect of opening a GPX file, containing waypoints from that file, or from a set of waypoints artifically constructed using the context menu entry Make Sampled Audio Layer on the GPX layer, which produces only audio markers.
• Photo Layer (menu): the context menu (right mouse) of a GPS layer provides the menu to import images. Using this feature allows to match digital images with the gps coordinates to ease the naming of streets (for example).
• WMS Layer (menu): backgrounds retrieved from a WMS server. Yiou will usually need the app[ropriate plugins installed to get these. Examples are Landsat stellite imagery, Yahoo satellite imagery, NPE out-of-copyright Ordnance Survey maps and OpenStretMap map tiles.

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