[[TranslatedPages]] [[PageOutline(2-10,Table of Contents)]] = Layers window = [[Image(source:trunk/images/dialogs/layerlist.png)]] ''Keyboard shortcut'': **{{{Shift+Alt+L}}}** — one of the [Help/ToggleDialogs#Toactivateawindow JOSM windows] **List of currently loaded layers.** [[Image(LayerList.png)]] == Layer types == There are different types of layers. Each has a Context Menu accessed from the right mouse button which provides operations on the layer. * [[Image(source:trunk/images/layer/osmdata_small.png)]] **OSM Data** Layer [wiki:Help/Menu/OSMLayer (context menu)]: holds the OpenStreetMap data (nodes, ways, relations). * [[Image(source:trunk/images/layer/gpx_small.png)]] **GPX** Layer [wiki:Help/Menu/GPXLayer (context 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.). * [[Image(source:trunk/images/layer/marker_small.png)]] **Marker** Layer [wiki:Help/Menu/Marker (context 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 artificially constructed using the context menu entry Make Sampled Audio Layer on the GPX layer, which produces only audio markers. * [[Image(source:trunk/images/dialogs/geoimage.png,15)]] **Photo** Layer [wiki:Help/Menu/PhotoLayer (context 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). * [[Image(source:trunk/images/imagery_small.png)]] **Imagery** Layer [wiki:Help/Menu/ImageryContextMenu (context menu)]: backgrounds retrieved from a WMS, TMS or WMTS server. Examples are Landsat satellite imagery, Bing Aerial, NPE out-of-copyright Ordnance Survey maps and OpenStreetMap map tiles. See also [wiki:Help/Menu/Imagery Imagery]. * [[Image(source:trunk/images/layer/validator_small.png)]] **Validator** Layer [wiki:Help/Menu/Validator (context menu)]: highlights objects with errors or warnings from the [wiki:Help/Dialog/Validator Validator] * [[Image(source:trunk/images/dialogs/notes/note_open.png,15)]] **Notes** Layer [wiki:Help/Menu/Notes (context menu)]: displays the position of downloaded [wiki:Help/Dialog/Notes Notes] in the Map view. There might be more layer types depending on the loaded [wiki:/Plugins plugins], e.g. [[Image(https://raw.githubusercontent.com/mapillary/josm-mapillary-plugin/master/images/icon16.png)]] [osmwiki:JOSM/Plugins/Mapillary Mapillary plugin]. == Layer Buttons == * [[Image(source:trunk/images/dialogs/layerlist/active.png)]] click to make the layer the active layer * [[Image(source:trunk/images/dialogs/layerlist/scale.svg,16)]] click to snap/unsnap the zoom to native resolutions of this background imagery layer * [[Image(source:trunk/images/dialogs/layerlist/eye.png)]] click to hide/unhide the layer == Panel Buttons == The Layers window also has several buttons at the bottom which operate on the selected layers: === Move Up === #LayerUp [[Image(source:trunk/images/dialogs/up.png)]] **Up** moves the selected layers up one row in the layer stack. This is important when items in one layer obscure those in layers below. You can reorder layers also by drag and drop. === Move Down === #LayerDown [[Image(source:trunk/images/dialogs/down.png)]] **Down** moves the selected layers down one row in the layer stack. === Activate Layer === #ActivateLayer [[Image(source:trunk/images/dialogs/activate.svg)]] ''Keyboard shortcut'': **{{{Shift+A}}}** ('''''release keys''''') then **{{{[0-9]}}}** - counting from the top **Activate** activates the selected layer. It is only possible to edit in an active Data layer. === Visibility === #VisibilityLayer [[Image(source:trunk/images/dialogs/layerlist/visibility.png)]] Following hotkeys used to control visibility of top10 or bottom10 layers: * {{{Shift+S}}} ('''''release keys''''') then **{{{[0-9]}}}** - where 0 it the top layer; 9 - bottom * **{{{Alt+[0-9]}}}** - counting from the bottom; 1 - first from the bottom; 0 - bottom10 Once clicked on, it offers: * A checkbox to show/hide a layer, i.e. turns visibility of selected layers on or off. The layers are unchanged when hidden, but their contents are not shown. You can also use the following shortcuts to show/hide a layer: * A slider to adjust the [[Image(source:trunk/images/dialogs/layerlist/transparency.png,16)]] **Opacity** of selected layers. * A slider to adjust the [[Image(source:trunk/images/dialogs/layerlist/colorfulness.png,16)]] **Colorfulness** of selected layers. * A slider to adjust the [[Image(source:trunk/images/dialogs/layerlist/gamma.png,16)]] **Gamma** of selected layers. * A slider to adjust the [[Image(source:trunk/images/dialogs/layerlist/sharpness.png,16)]] **Sharpness** of selected layers. Colorfulness, Gamma and Sharpness are only availible for imagery layers. For gpx layers you can choose one of 7 default colors. (Other colors are available via [Help/Action/LayerCustomizeColor Customize Color] in the gpx layer [wiki:Help/Menu/GPXLayer context menu]). [[Image(gpx_colors.png)]] Note: For ease of use you can use mouse scrolling to move a slider while the pointer is placed at the slider – no need to click-drag-release the slider picker. === Delete Layer === #DeleteLayer [[Image(source:trunk/images/dialogs/delete.png)]] **Delete** permanently deletes the selected layers. **All unsaved changes will be discarded! ** If you try to delete an OSM data layer or Notes layer which contain changes, JOSM will open the [wiki:Help/Dialog/UnsavedChangesDialog Unsaved Changes window], asking to upload and/or save these changes. === Individual Buttons === There might be more buttons depending on the loaded [wiki:/Plugins plugins], e.g. [[Image(http://svn.openstreetmap.org/applications/editors/josm/plugins/rasterfilters/images/josm_filters_48.png,16)]] [osmwiki:JOSM/Plugins/RasterFilters RasterFilters plugin]. ---- Back to [wiki:Help/ToggleDialogs Windows][[BR]] Back to [wiki:Help Main Help]