Re: Azimuthal Equidistant projection problem
Juan Diaz-Naveas <[email protected]> Mon, 26 May 2014 21:38:18 -0400
| Newsgroups | gmane.comp.gis.gmt.user |
|---|---|
| Message-ID | <CABeNKBnQtWZJk7f0pVqyQK-p4m7JXPTR59=opVESahvaQo-dBQ@mail.gmail.com> |
Dear Paul, Thank you very much indeed. Very best wishes Juan On Mon, May 26, 2014 at 9:28 PM, Paul Wessel <[email protected]> wrote: > Hi Juan- > > Yes, there were in fact two old bugs here, affecting both GMT 4 & 5: > > 1. The clip path for the entire region was hardwired to be a circle when > -Je/E was used, regardless of -R. In effect, it assumed -Rg. This caused > the blue circle. > 2. The search that determines the min/max w/e/s/n for a region specified > by -R...r did not check if either the S or N pole happened to be the > antipode of the -Je/E pole [your case]. That caused a bad w/e/s/n setting > and that gridline did not happen. > > Updated in both GMT 4 (r10233) and GMT 5 (r13201); please update and check > if your other issues further down (psxy/grdimage) still need attention. If > so please file a bug report on the tracker. > > Paul > > On May 24, 2014, at 5:56 PM, Juan Diaz-Naveas <[email protected]> > wrote: > > > Dear GMT users, > > > > This might be a bug, but before reporting as that I want to share the > strange behavior of the Azimuthal Equidistant projection. > > > > > > The followind command (when -R is specififed as > -Rlonmin/lonmax/latmin/latmax) produces an output, but the -Sblue option > draws also a strange circle: > > > > pscoast -B10g10 -Je-70/-90/1:15000000 -R-95/-60/-75/-55 -Di -Ggreen > -Sblue -P -Uc -V > az_eq_scale.ps > > > > The next command (when -R is specified as > -Rlonmin/latmin/lonmax/latmaxr) behaves ALMOST correctly, because the 60訖 > meridian is NOT drawn: > > > > pscoast -B10g10 -Je-70/-90/1:15000000 -R-95/-75/-60/-55r -Di -Ggreen > -Sblue -P -Uc -V > az_eq_scale_r.ps > > > > I attach both postscript files to let you verify this. > > > > Actually the problem becomes bigger when you add psxy or grdimage > commands, but for now I want to solve this very basic issue. > > > > Does anyone have an idea on how to solve this problem? > > > > Any help will be very much appreciated. Best wishes > > > > Juan Diaz-Naveas > > > > Mailing list for GMT discussions of all kinds. If you are not sure you > have found a bug, discuss it here first. To formally report bugs or request > features, please register and add New Issue on gmt.soest.hawaii.edu To > unsubscribe, send the message "signoff gmt-help" to > [email protected] Note: gmt-help will become obsolete on Sept 1, > 2014 - please use forum on gmt.soest.hawaii.edu instead. <az_eq_scale.ps>< > az_eq_scale_r.ps> > > Mailing list for GMT discussions of all kinds. If you are not sure you > have found a bug, discuss it here first. > To formally report bugs or request features, please register and add New > Issue on gmt.soest.hawaii.edu > To unsubscribe, send the message "signoff gmt-help" to > [email protected] > Note: gmt-help will become obsolete on Sept 1, 2014 - please use forum on > gmt.soest.hawaii.edu instead. > Mailing list for GMT discussions of all kinds. If you are not sure you have found a bug, discuss it here first. To formally report bugs or request features, please register and add New Issue on gmt.soest.hawaii.edu To unsubscribe, send the message "signoff gmt-help" to [email protected] Note: gmt-help will become obsolete on Sept 1, 2014 - please use forum on gmt.soest.hawaii.edu instead.