Changes between Version 32 and Version 62 of Help/MapView

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  • Help/MapView

    v32 v62  
     2[[PageOutline(2-4,Table of Contents)]]
    3 = Map View =
     4= Map view in JOSM =
    5 This is the main view in JOSM, where editing takes place, and Landsat and other images are displayed. There are different [EditToolbar working modes] which can change the interaction with the Map View.
     6This is the main view in JOSM (also called [ Viewport]), where editing takes place, and Bing/Mapbox and other sources can be displayed.
    7 [[Image(MapView2.png,500)]]
     10== What do you see here and when ==
     12There are several mechanisms in JOSM that affect what the user sees in the map view.
     14=== Visibility ===
     16* Data can be ''filtered out'' by [wikitr:/Help/Dialog/Filter Filters]
     17* [wikitr:/Help/Dialog/LayerList Layers (data, imagery)]
     18 * can be [wikitr:/Help/Dialog/LayerList#LayerButtons hidden] or can be set to [wikitr:/Help/Dialog/LayerList#VisibilityLayer semi-opaque]
     19 * can be obscured by other data layers ([wikitr:/Help/Dialog/LayerList#PanelButtons Up/Down buttons] are used to arrange layers)
     20* Map Paint Styles can hide OSM objects per zoom level
     22=== Appearance ===
     24* '''Partial fill of objects''' is enabled by default, it '''depends on area of the object'''. Areas will be fully filled if ''the partial fill would cover more than 50% of the area'' to avoid small unfilled gaps in the middle of an area.
     25* Enabled (in [wikitr:/Help/Preferences/Map#MapPaintStyles preferences]) and activated (in [wikitr:/Help/Dialog/MapPaint Map Paint Styles window] or preferences) styles affect what you see on the screen
     26* Styles can be displayed differently based on zoom factor
     28== Map view controls ==
    930=== Move map ===
    10 The area displayed in the window can be moved by holding down the right mouse button, and dragging the mouse. (On a Mac with a one-button mouse, simulate right-click by holding down **`Ctrl`** while clicking the button.)
     32The area can be moved by '''holding down''' the {{{right mouse button}}}, and '''dragging''' the mouse. To improve dragging performance, labels are hidden while moving the map:
     36This can be disabled in the [wikitr:/Help/Preferences/Display#OSMData OSM Data display settings].
    1238=== Zoom ===
    13 You can zoom using the scroll wheel or the `Plus`- and `Minus`-keys. Alternatively there is an extra [Action/Zoom zoom mode] and several other direct zoom actions in the [Menu/View view menu].
    15 === Middle Mouse Button ===
    16 If you click the scroll wheel (middle mouse button) a popup menu will be shown that allows you to select objects that are on top of each other. Click the scroll wheel again to select the next entry in the list. Hold down the scroll wheel to auto cycle through the list. Hold down {{{Ctrl}}} to select objects in the list with the mouse. You can {{{Alt+Left Click}}} to cycle through these objects without having to use the popup. If the latter doesn't work on Ubuntu systems, it's likely the key combination is catched before it is passed to JOSM. To fix this issue, start the gconf-editor (it's a GUI app but not present in Ubuntu's default menus) and go to Apps → Metacity → General. Change the setting "mouse_button_modifier" to something else.
    17  See also [Action/Select#Selectingsingleobjects selecting single objects] and [HowTo#Selectawaysharingcommonnodes select a way sharing common nodes]
     40* Using the scroll wheel
     41* {{{+}}} and {{{-}}} keys
     42* more specialized move/zoom actions and tools like:
     43 * several entries in the [wikitr:/Help/Menu/View View menu]
     44 * [wikitr:/Help/Action/JumpToPosition Jump To Position]
     45 * [wikitr:/Help/Action/Zoom Zoom tool]
     46 * [wikitr:/Help/Dialog/Minimap Minimap]
    19 === Left mouse button ===
    20 Depending on the [EditToolbar edit mode] the left mouse button triggers different actions.
     48== Downloaded area ==
    22 {{{
    23 #!comment
    24  Status Bar part moved to [wiki:Help/StatusBar]
    25 }}}
     50The area which was ''not'' downloaded is indicated by a yellow hatching. Ways which were downloaded can reach into the hatched area though. Make sure to edit only in the non hatched area because else it may lead to [wikitr:/Help/Concepts/Conflict conflicts] or duplicate data after upload.
     52Note that if you download filterd data (e.g. only buildings via [wikitr:/Help/Action/Download Overpass API]) there will be no hatched area at all as this is an incomplete data set. As soon as you download an additional area (containing all data in this area) into this layer the hatching will appear.
     54In special editing scenarios it may be useful to disable the hatching. This can be done via the [wikitr:/Help/Menu/View View menu] ([ExpertMode expert mode] only) or in the [wikitr:/Help/Preferences/Display#OSMData OSM Data Display Settings]. Use this with caution. Only disable the hatching if you know what you are doing.
     56== Troubleshooting ==
     58On a Mac with a one-button mouse, simulate right-click by holding down {{{Ctrl}}} while clicking the button.
    2760== See also ==
    28 * [Action/Select Select Action] - help on selecting, moving, and rotating objects in the map view
     61* '''[wikitr:Action/Select Select Action]''' - help on selecting, moving, and rotating objects in the map view
     62* '''[wikitr:/Help/EditToolbar Modes]''' - overview of modes (frequently accessed tools) in JOSM
     63* [wikitr:/Help/StatusBar Status bar]
     64* [wikitr:/Help/Menu/ImageryContextMenu Imagery Context Menu]
    30 Back to [wiki:/Help Main Help]
     66Back to [wikitr:/Help Main Help]