Stephen, That appears to do the trick.
Many thanks Ian -----Original Message----- From: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] On Behalf Of Stephen Woodbridge Sent: Wednesday, February 15, 2012 10:36 AM To: mapserver-users@lists.osgeo.org Subject: Re: [mapserver-users] RE: Circles around points in miles On 2/15/2012 1:23 PM, Ian Walberg wrote: > 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? Yes, add minwidth 1 and maxwidth 1 to force the width to 1 pixel. -Steve W > 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 _______________________________________________ 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