[[TranslatedPages]]

= Filter window =

[[Image(source:/trunk/images/dialogs/filter.png)]] ''Keyboard shortcut:''''' {{{Alt+Shift+F}}}''' — one of the [Help/ToggleDialogs#Toactivateawindow JOSM windows]

The filter window allows the user to temporarily disable certain types of [Help/Concepts/Object objects] based on one (or multiple) filters. 

== Filtered objects ==
* not selectable using [wiki:Help#Selection selection tools] (with few minor exceptions in #4929, comment 14)
* not returned during [Help/Action/Search Search] action
* will disappear from several menus until filters are disabled (example: [[Help/Dialog/SelectionList#SmalltriangleinSelectbutton]])

== Use cases ==

Simple usage is to enter single tag (or more complex expression similar to search) in "Text" column: objects complying with that text will be disabled.

More complex scenarios include filters as quick way to develop and test ''custom tagchecker rules'' ([[Extend JOSM]]).

=== Usability ===
* De-clutter main view by (de-)activating features only when you need them. This allows for easier editing in areas with densely located objects or infrastructure.
* Completely hide features you don't use
* Avoid unnecessary or accidental edits

=== Productivity ===
* Disable/separate objects that were fully tagged (using tag count and custom filters) from incomplete objects
* Disable recently modified objects (and it is irrelevant: if it modified by you or another person)
* Untagged objects {{{untagged}}} can be used instead of Notes at osm.org. It is faster than to set/remove {{{fixme=resurvey}}} - please don't overuse this principle

=== Filter window and columns ===

The filter lines are evaluated from top down, with respect to values in [[#Columns]].

[[Image(filterdialog.png,link=)]]

=== Columns ===

 * '''E''' (''Enable''): Enable or disable this filter line.
 * '''H''' (''Hide elements'' from [Help/MapView main view]): normally, all objects are disabled, but you can completely hide them:
  * disabled - visible and displayed as grey
  * hidden - the chosen objects are completely hidden
 * '''Text''': The search term or property that defines the objects that are filtered. Every search query from [Help/Action/Search Search] action is supported:
  * standard substring search (or exact search with "quotes")
  * Regular expressions (standard Java)
  * MapCSS syntax
 * '''I''' (''Inverse Filter''): Normally, the specified objects are hidden and the rest is shown. If this option is activated, only the specified objects are shown and the rest is hidden.
 * '''M''' (''Filter Mode'') - This mode selector defines how a filter is combined with the previous filter. ''This mode selector defines how a filter is combined with the previous filter.''
  * A (''replace selection'') - most users want this, filters with this mode are independent of each other
  * R (''replace selection'') - effectively disable all filters above
  * D (''remove from selection'') - un-filter all elements matched
  * F (''find in selection'') - TODO

=== Control buttons ===

TODO explain 5 buttons.

=== Examples ===

||Filter text                                                                  ||Description or note||
||{{{ ((landuse:|natural:|leisure:|building:) | (role:outer|role:inner))}}}    ||Doesn't handle relations perfectly||
||{{{ shop=* opening_hours=* }}}                                               ||shop= + opening_hours= tagged objects||
||{{{ shop=* name=* }}}                                                        ||shop= + name= tagged objects ||
||{{{ type:node -shop=* }}}                                                    ||All nodes expect shops. Geometry modification using mouse move disabled, but possible using other modes (ex. - [Action/ImproveWayAccuracy Improve Way Accuracy mode (W)])||
||{{{ (type:node | type:way | type:relation) (modified | user:Steve) }}}       ||Hide objects if you are the latest editor (useful during mass re-tagging and semi-mechanical edits)||
||{{{ -highway: }}}                                                            ||Everything except highway= tagged objecets||
||{{{ man_made=pipeline }}}                                                    ||Pipelines||
||{{{ natural=water }}}                                                        ||Water objects||
||{{{ admin_level: }}}                                                         ||Admin boundaries||
||{{{ boundary: | leisure: | landuse: | waterway: | amenity: | natural: | building: }}} ||De-clutters map, aggressive (sometimes you may want to keep buildings or amenity key)||
||{{{ type:node & untagged }}}                                                 ||Make it easier to select ways||
||{{{ modified }}}                                                             ||Quickly see your changes||
||{{{ child (type:way & highway:) }}}                                          ||All nodes that's part of a highway||
||{{{ child (type:relation & (natural:|landuse:)) }}}                          ||All natural and landuse areas formed by relations||
||{{{ -((highway | child highway | untagged | public_transport) & -(highway=footway | highway=path | highway=steps | highway=track)) }}} || Only roads for public transport. Good for mapping bus networks.  ||

See also [[Help/Action/Search#Examples]] other examples. If you have some clever filters, add them here.

== Filter warning ==

If any filter is active, a transparent message box will appear in the top right corner of [Help/MapView main view]. 

It is only visible if at least one object was disabled or hidden.

[[Image(filters warning.png,link=)]]

----
Back to [wiki:Help/ToggleDialogs Windows][[BR]]
Back to [wiki:/Help Main Help]