S Ridley
unread,Nov 19, 2008, 5:52:55 PM11/19/08Sign in to reply to author
Sign in to forward
You do not have permission to delete messages in this group
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message
to MapInfo-L
Hi Ben
A colleague has written a procedure for creating road segment markers
using the MapInfo Distance Marker tool. I have used the same tool to
create 20m frontages along lots for addressing purposes. See procedure
below:-
Aim
To create, set and label polyline distance markers (DMs) along road
centrelines and save DMs to existing layer “TSCRoadDistanceMarkers”
Process
1. Open appropriate road centerline layer
1.1 Copy (segmented) polylines that are to be DMd into temp layer
1.2 Combine segments of each polyline to form single polylines
2. Select tools
2.1 Run mapbasic program
2.2 Select distance marker and run and load
3. Set DM preferences
3.1 Tools > DM > preferences
3.2 Distance = 500m, symbol = blue solid circle, multiple points
4. Select DM tool from menu icons (top of screen)
4.1 Click DM tool somewhere near start of line to be DMd and tool will
measure and place symbols at the required intervals (away from the
curser point along the lengthier part of the line)
4.2 Check that DMs set in correct direction
4.3 If not, can reselect line and choose to either remove DMs or
modify intervals or measuring direction
4.4 Can use DM tool to select as many lines as necessary, one after to
other
4.5 Manually label all DMs in 500m increments (eg 0.0, 0.5, 1.0, 1.5,
etc)
4.6 Save labeled DMs (only) to layer “TSCRoadDistanceMarkers”
NOTE – Mapinfo will automatically save DMs into a new layer with a
“_Marker” extension added to the original table name