[[TranslatedPages]]
= Creating lines with mouse or pen using Fast Draw =

[[Image(/pluginicon/FastDraw.jar/images/favicon.png)]] ''keyboard shortcut:'' '''{{{Shift+F}}}''' — is one of the [wiki:Help/EditToolbar working modes], provided by the FastDraw [wiki:/Plugins plugin]

Suggested usage - tracing forests, rivers, lakes, twisted roads etc. Without clicking {{{A}}} button or left mouse click too much. 

Please use simplification and validator! Do not upload huge and self-intersecting lines.

=== Usage with streams ===

[[Image(fastdraw-stream.gif,nolink)]]

[#Shortcutsanddrawingmode Drawing mode], in simple words:
1. ''Enter the drawing mode, click pen toolbar icon (or {{{Shift+F}}})''. Icon will be set to cross.
2. ''(optionally) press {{{Q}}} to open [#ConfigurationmenuQ configuration menu]
3. ''Point cursor at starting position. Move mouse. Press or hold: {{{Spacebar}}} or ''left mouse button'' - when you want to add more nodes. Icon will we switched to (icon: cross with 3 nodes), it means that nodes will be added.
[#Automaticsimplification Automatic simplification], in simple words:
4. ''{{{Enter}}}. shape will be automatically simplified with respect to ''fixed nodes'' (to reduce number of nodes). [[br]]
5. ''(optionally) fine tune simplification using {{{Up}}} or {{{Down}}} buttons.''
6. ''{{{Enter}}} again. Regular OSM way is created and selected.''
After step 6, Drawing mode will be disabled and all respective shortcuts will be inaccessible (including {{{Q}}})

=== Shortcuts and drawing mode ===

This sections covers steps 1,3 in detail:
* You can ''move nodes'' simply by dragging them
* {{{Backspace}}} - to delete one of previous nodes sequentially
* {{{Ctrl+Click}}} on free node makes it '''fixed''' (icon: a green dot) - that will not be affected by simplification; you may use it for corners or other significant parts of shape but this is not required
* If you point cross cursor over node that was entered by other JOSM tools, it will be added as ''fixed node''
* {{{Ctrl+Click}}} on ''fixed node'' (icon: a green dot inside red dot) -  makes it normal node
* {{{Shift+Click}}} (icon: red cross) - to delete selected node 
* {{{Shift+Click}}} (icon: red cross) - can also used to delete sequence of ''insignificant nodes'' between two ''fixed nodes''; it will be highlighted in blue. After you removed a segment, you will enter '''redrawing mode''', a segment that is currently redrawn will be displayed in yellow:
 * You can use other shortcuts as usual;
 * To finish ''redrawing'' and save ''new nodes of a segment'' press {{{Shift+Click}}} or {{{Escape}}}
* {{{Ctrl+Shift+Click}}} (icon: red cross) - will remove all nodes, tool will be ready to use again
* {{{Escape}}} - to stop editing (you will be prompted to save your edits)
* Click on the first node (icon: rectangle with red corners) - will create continuous contour 

Если при включении FastDraw (Shift-F) выделена ровно одна свеженарисованная линия (ещё не загруженная на сервер, чтобы проблем не порождать), то можно редактировать её, нажав T (Shift-F T). Ненужные точки будут удалены при сохранении линии (Enter-Enter). Осторожно - теги сбрасываются. Ctrl-Z работает. Может пригодиться для упрощения полученных другим путём линий (треки и т. д.) или для повторного упрощения с другими параметрами.

=== Automatic simplification ===

This sections covers step 4-5 in detail:
* {{{Up}}}/{{{Down}}} - will multiply current value by epsilon multiplier ({{{fastdraw.epsilonmult}}})
* ''Starting value of epsilon'' ({{{fastdraw.startingEps}}}) set in Configuration menu 
* ''Current value of epsilon'' displayed in the status bar
* Algorithm will repeat until there {{{fastdraw.pkmblocksize}}} nodes in a way and while (number of nodes)/(length of a way) is above "''Max points count per 1 km''" ({{{fastdraw.maxpkm}}})
* epsilon value and starting epsilon value depends on current pixel sizes (zoom level of the map view matters)

=== Configuration menu (Q) ===

* "Snap to nodes" - 
* "Add fixed points on click" -
* "Add fixed points on spacebar" - 
* "Draw closed polygons only" - 
* "Allow edit existing ways" - 

=== Advanced Preferences ===

{{{fastdraw.pkmblocksize}}} - not shown in menu to end user (read above)

=== See also ===

* [http://forum.openstreetmap.org/viewtopic.php?id=13369 Russian discussion in 08-2011]

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