Steve, Thanks again for the info so far.
Testing this today we realise (not surprisingly) that both the size and width of the symbol are now in miles. Ideally we would like to set the radius of the circle in miles and the width in pixels. Is there any way of doing this? Regards Ian -----Original Message----- From: Lime, Steve D (DNR) [mailto:steve.l...@state.mn.us] Sent: Monday, February 13, 2012 2:57 PM To: Ian Walberg; mapserver-users@lists.osgeo.org Subject: RE: Circles around points in miles I jumped the gun on the geomtransform idea. The support is there but because it operates at the style level buffer distances must be given in pixels and there's no easy way to convert a map distance (e.g. 10 miles) to pixels. I really should make some runtime constants (for example, extent, scale and cellsize) available to expressions- then you could do this. Glad you picked option 2 to start. Steve -----Original Message----- From: Ian Walberg [mailto:ian.walb...@airborne.aero] Sent: Monday, February 13, 2012 4:38 PM To: Lime, Steve D (DNR); mapserver-users@lists.osgeo.org Subject: RE: Circles around points in miles Steve, Many thanks for the help and we have just tested option 2 and that works. We are using 6.x but are not exactly sure how to use the geomtransform to do this. Do you have an example? Regards Ian -----Original Message----- From: Lime, Steve D (DNR) [mailto:steve.l...@state.mn.us] Sent: Monday, February 13, 2012 9:37 AM To: Ian Walberg; mapserver-users@lists.osgeo.org Subject: RE: Circles around points in miles Couple of options depending on version: 1) 6.x: buffer the points using a style geomtransform 2) all versions: use layer SIZEUNITS to draw a circle symbol in miles I think option 1 is more flexible but option 2 is probably faster. Steve -----Original Message----- From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Ian Walberg Sent: Saturday, February 11, 2012 10:06 PM To: mapserver-users@lists.osgeo.org Subject: [mapserver-users] Circles around points in miles We need to draw circles of 50 and 100 miles around a list of points. How can we do this? Thanks Ian _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
