[Qgis-user] Creating Rectangle Around Central Point

[gam17 at riseup.net]

Hi Mike,
   you can use QAD plugin, run POLYGON command to draw a regular
polygon.
The command will ask the following parameters:

Enter number of sides <4>: 4
Specify center of polygon or [Edge]: 
Enter an option [Inscribed in circle/Circumscribed about circle/Area]
<Circumscribed about circle>: Circumscribed about circle
Specify the circle radius <100>: 100

The radius of the circle will correspond to the square dimension.

if the center of the polygon is specified in a coordinate reference
system different from the current one:

- if the coordinate reference system is projected:
enter x,y (SRID). For example 1491621.64817, 4915622.63154 (EPSG:3003)
is a point with coordinate X=1491621.64817 and Y=4915622.63154 in the
projected coordinate reference system EPSG:3003

- if the coordinate reference system is geographic:
enter latitude, longitude (SRID). For example 44º 24' 48N/ 08º 50' 15E
(EPSG:4326) is a point with latitude 44 degrees 24 minutes 48 seconds
and longitude 6 degrees 50 minutes 15 seconds in the geographic
coordinate reference system EPSG:4326.

gam17


> Good Morning
> 
> I am trying to create a square 1km X 1km around a central point that
> has GPS coordinates.
> 
> I have tried every suggestion and plugin suggested but am struggling.
> 
> This is intended to be used with students as part of their science
> field work once I figure out what I am doing wrong.
> 
> Thank you in advance for your help.
> 
> Mike Jabot
> 
> *************************************
> 
> Michael Jabot, Ph.D.
> SUNY Distinguished Professor, Science Education
> 
> US Partner - GLOBE Program
> 
> NASA Earth Ambassador
> 
> Director, Institute for Research in Science Teaching
> 
> Chancellor's Award Recipient for Excellence in Research
> The State University of New York at Fredonia
> 
> 716.320-0189 (Google Voice)
> 
> jabot at fredonia.edu
> 
> E250 Thompson Hall
> 280 Central Avenue
> 
> Fredonia, NY  14063
> *************************************
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user