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Township lines overlapping

March 18 2010 | 0 comments
Categories: Map Data

The township lines shown in attached map is in shape file format provided by a vendor. As you see the lines are kind of overlapping & it looks pretty "bad" when it is projected on a big screen. Is there anyway to fix it or does
ESRI has a better NTS grid line I can download.

Mapping Center Answer:

There is a Public Land Survey System data set on the ESRI Data and Maps DVD that is shipped with your software.  It is a polygon data set and it also has an associated layer file with symbology.  You can also download these from ArcGIS Online.

If you need to have the data in line format, you can use the Polygon to Line tool (be sure not to use the Feature to Line tool or you will end up with two lines where polygons abut one another).  Using the attributes, you can also create the baselines and meridians, if you want.

Having said that, if you are creating the graphic for your display as a screen shot, you actually have a different problem.  In a screen shot, you will see the abrupt pixel offsets when a line is not exactly aligned top to bottom or left to right.  If this is how you created the graphic, then instead, export the map to a graphic format that you can use in the presentation in place of the screen shot (e.g., .bmp, .gif, .jpg, .tif).  If that map image still has the offsets, then you can try replacing the data set.

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