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= Selection mode, Move and Rotate Objects =

[[Image(source:trunk/images/mapmode/move/move.png)]] ''Keyboard shortcut:'' **{{{S}}}**; press {{{S}}} to toggle between this mode and [[Image(source:trunk/images/mapmode/rope.png,20,link=)]] [wiki:Help/Action/LassoMode lasso mode]

== Selection mode == #Selecttool

This mode enables the user to make selections of different [Concepts/Object objects].

The selected objects are drawn in a different style (red colour by default); depending on [Help/Preferences/Display display preferences] and the [Help/Dialog/MapPaint active styles].

The cursor icon will also change depending on the selection mode.

=== Selecting single objects ===
==== Single left mouse click to select an object ====

Cursor: with node [[Image(source:trunk/images/cursor/modifier/select_node.png,24,nolink)]]; with way [[Image(source:trunk/images/cursor/modifier/select_way.png,24,nolink)]]

Activation steps: {{{Left mouse click}}}

Action: Select a node or way under mouse cursor.

More precisely, ''previously selected object(s)'' will be '''replaced''' with new object and displayed [Help/Dialog/SelectionList in Selection List Dialog].

Note, to empty current selection: #Toemptycurrentselection

* {{{Left mouse click}}} on empty space in viewport (main editing window)
* {{{Espace}}} tool

==== Selecting particular ways ====

Cursor: none

Activation steps:
* {{{Middle mouse click}}}
* {{{Left mouse click}}} while holding the {{{Alt}}} (or {{{AltGr}}}) key to cycle through nearby objects '''without showing a pop-up window'''

This is useful when:

* certain way which **shares common nodes** with one or more other ways
* multiple '''objects overlap'''
* multiple '''objects very close to each other'''

Action: it will show a pop-up window of nearby objects and to cycle through them. To make this type of selection the default, and thus not require the use of the **{{{Alt}}}** key, change the [Help/Preferences/Advanced advanced preference] {{{selectaction.cycles.multiple.matches}}} to true.  Holding {{{Ctrl}}} afterwards to directly select an object.

==== Double mouse click to select object around cursor ====

Cursor: none

Activation steps: {{{Double mouse click}}}

Action: select the surrounding object ([Help/Concepts/Object#Relations closed way] or [Help/Concepts/Object#Relations multipolygon]).

=== Deselecting single object(s) ===

Cursor: with node [[Image(source:trunk/images/cursor/modifier/select_node_remove.png,24,nolink)]]; with way [[Image(source:trunk/images/cursor/modifier/select_way_remove.png,24,nolink)]]

Activation steps: hold {{{Alt}}} when using {{{Left mouse button}}}

Action: a way or node will be removed from the ''currently selected objects''

=== Selection rectangle ===
==== Selecting multiple objects using selection rectangle ====

Cursor: [[Image(source:trunk/images/cursor/modifier/selection.png,24,nolink)]]

Activation steps: hold and drag the {{{Left mouse button}}} around objects

Actions: 
* Release the {{{Left mouse button}}} - to select all [Concepts/Object objects] within the rectangle, more precisely:
* - all nodes within the rectangle and 
* - any ways which are '''entirely within the rectangle''' will be selected
* - ''previously selected objects'' will be '''replaced with new object(s)''' and displayed [Help/Dialog/SelectionList in Selection List Dialog] 
* Hold the {{{Right mouse button}}} when releasing the left mouse button - cancel the selection rectangle

==== Modifiers ====
When the mouse button is released and either **{{{Alt}}}**, **{{{Shift}}}** or **{{{Ctrl}}}** is held, action will changed; 3 paragraphs below cover it in detail.

====== Combination of modifiers ======
* {{{Alt}}} can be combined with {{{Shift}}}
* {{{Alt}}} can't be combined with {{{Ctrl}}} - as this is used for the **[#Scale scale]** command

====== Alt modifier ======

Cursor: none

Activation steps: {{{Alt}}}

Actions: in addition to the normal behaviour, select all ways that have at least one node within selection rectangle

====== Shift modifier ======

Cursor: [[Image(source:trunk/images/cursor/modifier/select_add.png,24,nolink)]]

Activation steps: {{{Shift}}}

Actions: the [Concepts/Object objects] are added to the current selection

====== Ctrl modifier ======

Cursor: [[Image(source:trunk/images/cursor/modifier/select_remove.png,24,nolink)]]

Activation steps:

Actions: remove all [Concepts/Object objects] in current rectangle from selected objects (if there were any); nothing is added to the current selection.

== Move ==

You can move selected [[Image(source:trunk/images/data/node.png)]] [Concepts/Object#Nodes nodes] and [[Image(source:trunk/images/data/way.png)]] [Concepts/Object#Ways ways] in the main window, by moving the mouse cursor close to one of the selected objects and then left clicking while dragging the mouse.
* If the mouse cursor is **near a node** when performing the move action, then **just this node** is moved.
 * If you move a node very close to another node and hold **{{{Ctrl}}}** when releasing the left mouse button the moved **node** will be merged with the other **node**.
* If the mouse cursor is **near a way** when performing the move action, then **this way**, together with its associated **nodes**, is moved.

Moving objects is also possible with **{{{shift + arrow keys}}}**.

== Merge nodes ==

Cursor: [[Image(source:trunk/images/cursor/modifier/joinnode.png,24,nolink)]]

Activation steps: hold down {{{Ctrl}}} and drag one selected node onto the unselected one

Action: merge selected nodes with another; internally it will simply use [Help/Action/MergeNodes Merge tool] - please read more details here.

== Click on segment midpoint will create new node ==

Cursor: fixme

Activation steps: clicking and dragging a yellow cross in the middle of a segment; at any point in time, there N-1 points to drag where N is number of segments.

Action: will insert a new node at the location of the cross

[[Image(ex-move-segment-node-1.gif,nolink)]]

== Rotate ==

Cursor: [[Image(source:trunk/images/cursor/rotate.png,24,nolink)]]

Activation steps: {{{Shift+Ctrl}}} + {{{Left mouse button}}} and moving mouse up and down

Action: rotate selected nodes and ways around their geometrical centre.

== Scale ==

Cursor: [[Image(source:trunk/images/cursor/scale.png,24,nolink)]]

Activation steps: {{{Ctrl+Alt}}} + {{{Left mouse button}}} and moving mouse up and down

Action:

* scale selected nodes and ways around their geometrical centre. Proportions will be kept.
* if used only on 2 nodes, it will move them from or to their mid point (depending on mouse move)

== Advanced details ==
Whether a mouse action is considered a selection or a move depends on some settings, to prevent objects from being moved when a simple selection was intended; this is particularly important on devices such as tablets that are touch sensitive or use a stylus. If the pointer is moved between pressing and releasing the left mouse button, the object will only be moved if the pointer moved more than 5 pixels or was held down for more than 0.2 seconds, otherwise the object will simply be selected. These two settings can be changed with the [Help/Preferences/Advanced advanced preferences] {{{edit.initial-move-threshold}}} (pixels) and {{{edit.initial-move-delay}}} (milliseconds).

== See also ==
* [wiki:/Help#Selection "Selection" section at main page] - some popular selection tools
* [wiki:Help/Action/UnselectAll Unselect all] {{{Escape}}}
* [[Image(source:trunk/images/mapmode/improvewayaccuracy.png,16,link=)]] [wiki:Help/Action/ImproveWayAccuracy Improve Way Accuracy] - over time many mappers switch to this tools instead of manually moving each node
* [wiki:Help/Plugin/UtilsPlugin2 UtilsPlugin2] contains additional selection functionality

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