danbjoseph/JOSM_notes.md

## JOSM_notes.md

      
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              JOSM_notes.md
            
          
install JOSM
install plugins through the preferences (links below are to details)

Building tool
UtilsPlugin2


enable remote control in preferences
familiarize yourself with the keyboard shortcuts

Select, move, scale and rotate objects (S)
Draw nodes (A)
etc.


for adding tags the OSM wiki on map features is your friend
fast buildings

perfect rectangles with Draw buildings (B)
extrude portions Create areas (X)

short videos on mapping buildings and mapping complex buildings


oblique corners? draw two rectangles and then Join overlapping Areas (Shift + J)
align (parallel or perpendicular) new buildings created with the building tool to the orientation of a feature by selecting the desired feature first
round huts? rough circle with 8-12 points, then Align Nodes in Circle (O)
round feature can also draw diameter then Create Circle (Shift + O) (usually creates a lot of nodes)


fixing buildings

square corners with Orthogonalize shape (Q)


add detail to roads/rivers/ways with Improve Way Accuracy mode (W)

dotted line will show new location, click to move a node and set
hold Ctrl to add nodes, solid line will show new location, click to add
hold Alt to remove nodes, solid line will show new location, click to remove


divide a way into pieces with Split a way at the selected node (P)

e.g. if type changes (residential -> path, stream -> river, etc.)


creating multipart polygons easiest with Tools > Create Multipolygon
community ethos and better to fix rather than delete
interesting metrics

How did you contribute to OpenStreetMap?
Who has contributed to Missing Maps?
Which user wins in an OSM fight?


Missing Maps

HOT and the Task manager


if you get lost while zooming/panning, View > Zoom to data (1)
when downloading new data you usually do not want Download as new layer checked
JOSM does conflict handling (unlike iD editor), but still better to upload fairly often