Re: [Qgis-user] map scale

[Lee Hachadoorian]

On 05/08/2012 03:40 PM, Jake Maier wrote: Please I’m having a hard time with the scale in print manager. I use UTM as datum but would like to print my maps in Miles and feet. I changed the /settings/options/map tools to feet, but that did not change anything in the print master There I tried 1609.344 in the segment size but I would need 0.3048 in the units per bar unit and I can only define 2 decimal places here and therefore I get 5364.48 feet as the scale display. I’m not sure if I’m describing my problem very clear, but in short I’d like to use NAD83/UTM zone 19N as CRS but feet and miles for the scale bar. How can I best do that. Who could please help me with this. Thanks Jake Jake, meant to send my response to the list. Since you said it worked for you, I'm sending again so that others might benefit from it: Jake, IIUC, you want the scale bar separated into miles but the number to be feet (5280 per segment). Some imperfect solutions: 1) Set Map units per bar = 0.3 and Segment size = 1584. Scalebar will display 5280 feet per segment, measurements will be off by ~1.5% 2) Set Map units per bar = 1609.34 and Segment size = 1609.34. Scalebar will display 1 mile (rather than feet), measurements will be off by ~.0002% 3) Beyond that, I would look for a US-foot based projection that was close enough to what you want. If you really want it in transverse Mercator you could define a projection that mimicked UTM 19N but used feet as the unit. --Lee -- Lee Hachadoorian PhD, Earth & Environmental Sciences (Geography) Research Associate, CUNY Center for Urban Research http://freecity.commons.gc.cuny.edu

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