Re: Pixelated, Regional Topograpy Data
Gregory Brenn <[email protected]> Mon, 11 Aug 2014 14:41:26 -0400
| Newsgroups | gmane.comp.gis.gmt.user |
|---|---|
| Message-ID | <[email protected]> |
--Apple-Mail=_7DD5E72B-E6CE-476E-B565-14E531990E47 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 I used SRTM, and the topography looks great. I created a nice script. = Now I want to add bathymetry data to the map that I overlaid earthquakes = with. Do you have any recommendations for where to get high-quality = bathymetry data, such as from GEBCO? On Aug 11, 2014, at 1:21 PM, Joaquim Luis <[email protected]> wrote: >> On 11/08/2014, at 09:23, "Fielding, Eric J (329A)" = <[email protected]> wrote: >>=20 >> The new SRTM v.3 has merged ASTER to fill voids. SRTM is better in = almost every location outside of voids.=20 >=20 > And it takes 9 times less disk space >=20 > Joaquim >=20 >=20 > Sent from my iPadiola >=20 >>=20 >> ++Eric >>=20 >> Sent from my iPhone >>=20 >>> On Aug 11, 2014, at 12:17, "Becker, Joseph J." = <[email protected]> wrote: >>>=20 >>> I forgot to mention that we now combine the SRTM land data with the = ASTER data which is also available for free. Outside of the US, the = ASTER data is, as I recall, the highest generally available resolution, = however it is noisy; e.g.; a tile near the Galapagos has a few points = indicating ~7,000m elevation on Isla Darwin. >>>=20 >>> We take all the land data we can get easily and block median it = together for that reason. Simply taking an average would not work well. = And the GMT tools are fast so the extra computer time is negligible=85 >>>=20 >>> -jj >>>=20 >>>=20 >>> On Aug 11, 2014, at 10:38 AM, JJ Becker = <[email protected]<mailto:[email protected]= l>> wrote: >>>=20 >>> I make the SRTM30_PLUS file(s) that were mention. If you=92d like to = make your own at a higher resolution here is what I do: >>>=20 >>> a bit of byte swapping on the HGT format file(s), >>> (optionally cat several altogether in a tmp file), >>> (optionally) block median the small tiles together to get the final = resolution you would like, >>> and grid. >>>=20 >>>=20 >>> grd2xyz $cgiar -s -bo3 -V | >>> blockmedian -bi3 -bo3 -I$resolution -R$minX/$maxX/$minY/$maxY -C -V = | \ >>> xyz2grd -bi -G$grd -R$minX/$maxX/$minY/$maxY -I$resolution -V >>>=20 >>>=20 >>> The block median options can be used to handle the possibly = troubling issues arising from the question of what location to pick when = selecting the median height from a cloud of neighboring points (aka the = center of the down sampled pixel, the average location of the cloud, the = location whose height happens to be the median, etc=85) >>>=20 >>> -jj >>>=20 >>> On Aug 9, 2014, at 3:13 PM, Gregory (Greg) Brenn = <[email protected]<mailto:[email protected]>> wrote: >>>=20 >>> Ok, >>>=20 >>> That's great. I downloaded an unzipped .hgt files, so what do you = think would be the best way to convert the .hgt files (I have 4 that I = want to convert) into .grd files, then stich those files together? = Could I use xyz2grd and then use grdpaste? >>>=20 >>> Thanks a lot for your help. >>> Greg >>>=20 >>>=20 >>> On Sat, Aug 9, 2014 at 2:44 PM, Fielding, Eric J (329A) = <[email protected]<mailto:[email protected]>> = wrote: >>> Yes, as Walter mentioned, the SRTM 3-arcsecond (~90 m) digital = topography >>> is available for most of the Earth (up to 60 degrees N & S = latitudes), and >>> it is much higher resolution than the ETOPO1 data that is = 1-arcminute or >>> about 2 km spacing. The latest release is SRTM version 3.0. The Open >>> Topography website has a new service that will assemble the data and >>> provide the output in three formats >>> = (http://www.opentopography.org/index.php/news/detail/srtm_version_30_globa= l >>> = _90m_and_united_states_30m_elevation_data_now_availab/<http://www.opentopo= graphy.org/index.php/news/detail/srtm_version_30_global_90m_and_united_sta= tes_30m_elevation_data_now_availab/>). The GeoTIFF files >>> are easy to convert to GMT .grd files with GDAL. >>>=20 >>> ++Eric Fielding >>>=20 >>>=20 >>> -----Original Message----- >>> From: "Walter Smith (HF)" = <[email protected]<mailto:[email protected]>> >>> Reply-To: World-Wide GMT Usage and Help Mailing List >>> <[email protected]<mailto:[email protected]>> >>> Date: Saturday, August 9, 2014 11:04 AM >>> To: "[email protected]<mailto:[email protected]>" = <[email protected]<mailto:[email protected]>> >>> Subject: Re: [GMT-HELP] Pixelated, Regional Topograpy Data >>>=20 >>>> =B3pscoast=B2 is defaulting to a low resolution coastline. Try = adding -Df or >>>> check the usage message to get your highest option. >>>>=20 >>>> There is higher resolution topography than ETOPO1, such as SRTM3. = You=B9ll >>>> have to search around and you may have to assemble it from a few = tiles >>>> that you may have to download separately. >>>>=20 >>>> Walter >>>>=20 >>>> On Aug 9, 2014, at 1:50 PM, Gregory (Greg) Brenn = <[email protected]<mailto:[email protected]>> >>>> wrote: >>>>=20 >>>>> Hello, >>>>>=20 >>>>> New user of GMT here, and I'm attempting to create a map of Costa = Rica >>>>> and overlay coastlines and earthquake locations. Here is my = Script: >>>>>=20 >>>>> #!/bin/bash >>>>>=20 >>>>> clear >>>>>=20 >>>>> xyz2grd COSTARIC-6565.xyz -Gcostarica.grd -R-87/-84/9/11 -I2m -V >>>>>=20 >>>>> grdimage costarica.grd -JM12 -K -Cmy-topo.cpt -R-87/-84/9/11 >> = map.ps<http://map.ps/> >>>>>=20 >>>>> pscoast -V -O -K -JM -R -W1 >> mappy.ps<http://mappy.ps/> >>>>>=20 >>>>> psxy loc.txt -JM12 -R-87/-84/9/11 -Sc.1 -G'45/59/100' -B1/1 -O >> = map.ps<http://map.ps/> >>>>> gv map.ps<http://map.ps/> >>>>>=20 >>>>>=20 >>>>>=20 >>>>> I am using a generic color palette which I can change easily, but = the >>>>> coastlines are extremely low quality, and the topography is = extremely >>>>> pixelated. >>>>>=20 >>>>> I look at images in papers, and there's extremely high quality >>>>> topographic images of COsta Rica, for example, as well as the = coastlines >>>>> and bathymetry, but I have no idea where I can get this = high-quality >>>>> data. I have tried to get ETOPO data, but I cannot seem to find = where >>>>> to get high-quality data. >>>>>=20 >>>>> So I guess my question is, is ETOPO1 the best place to get = high-quality >>>>> topo data, because I cannot seem to figure out how to download = data from >>>>> their website. Also, would I need to download coastline data, as = well? >>>>>=20 >>>>>=20 >>>>>=20 >>>>> Thanks, >>>>>=20 >>>>> Greg >>>>>=20 >>>>> 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<http://gmt.soest.hawaii.edu/> To unsubscribe, = send the message "signoff gmt-help" >>>>> to [email protected]<mailto:[email protected]> = Note: gmt-help will become obsolete on Sept >>>>> 1, 2014 - please use forum on = gmt.soest.hawaii.edu<http://gmt.soest.hawaii.edu/> instead. >>>>=20 >>>> 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<http://gmt.soest.hawaii.edu/> >>>> To unsubscribe, send the message "signoff gmt-help" to >>>> [email protected]<mailto:[email protected]> >>>> Note: gmt-help will become obsolete on Sept 1, 2014 - please use = forum on >>>> gmt.soest.hawaii.edu<http://gmt.soest.hawaii.edu/> instead. >>>=20 >>> 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<http://gmt.soest.hawaii.edu/> >>> To unsubscribe, send the message "signoff gmt-help" to = [email protected]<mailto:[email protected]> >>> Note: gmt-help will become obsolete on Sept 1, 2014 - please use = forum on gmt.soest.hawaii.edu<http://gmt.soest.hawaii.edu/> instead. >>>=20 >>> 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<http://gmt.soest.hawaii.edu/> To unsubscribe, send = the message "signoff gmt-help" to = [email protected]<mailto:[email protected]> Note: = gmt-help will become obsolete on Sept 1, 2014 - please use forum on = gmt.soest.hawaii.edu<http://gmt.soest.hawaii.edu/> instead. >>>=20 >>> 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. >>=20 >> 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. >=20 > 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 ongmt.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 = ongmt.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. --Apple-Mail=_7DD5E72B-E6CE-476E-B565-14E531990E47 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html = charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">I used = SRTM, and the topography looks great. I created a nice script. = Now I want to add bathymetry data to the map that I overlaid = earthquakes with. Do you have any recommendations for where to get = high-quality bathymetry data, such as from = GEBCO?<div><br></div><div><br><div><div>On Aug 11, 2014, at 1:21 PM, = Joaquim Luis <<a = href=3D"mailto:[email protected]">[email protected]</a>> = wrote:</div><br class=3D"Apple-interchange-newline"><blockquote = type=3D"cite"><div style=3D"font-size: 12px; font-style: normal; = font-variant: normal; font-weight: normal; letter-spacing: normal; = line-height: normal; orphans: auto; text-align: start; text-indent: 0px; = text-transform: none; white-space: normal; widows: auto; word-spacing: = 0px; -webkit-text-stroke-width: 0px;"><blockquote type=3D"cite">On = 11/08/2014, at 09:23, "Fielding, Eric J (329A)" <<a = href=3D"mailto:[email protected]">[email protected]<= /a>> wrote:<br><br>The new SRTM v.3 has merged ASTER to fill voids. = SRTM is better in almost every location outside of voids.<span = class=3D"Apple-converted-space"> </span><br></blockquote><br>And it = takes 9 times less disk space<br><br>Joaquim<br><br><br>Sent from my = iPadiola<br><br><blockquote type=3D"cite"><br>++Eric<br><br>Sent from my = iPhone<br><br><blockquote type=3D"cite">On Aug 11, 2014, at 12:17, = "Becker, Joseph J." <<a = href=3D"mailto:[email protected]">Joseph.Becker.ctr@NRLSSC= .NAVY.MIL</a>> wrote:<br><br>I forgot to mention that we now combine = the SRTM land data with the ASTER data which is also available for free. = Outside of the US, the ASTER data is, as I recall, the highest generally = available resolution, however it is noisy; e.g.; a tile near the = Galapagos has a few points indicating ~7,000m elevation on Isla = Darwin.<br><br>We take all the land data we can get easily and block = median it together for that reason. Simply taking an average would not = work well. And the GMT tools are fast so the extra computer time is = negligible=85<br><br>-jj<br><br><br>On Aug 11, 2014, at 10:38 AM, JJ = Becker <<a = href=3D"mailto:[email protected]">joseph.becker.ctr@nrlssc= .navy.mil</a><<a = href=3D"mailto:[email protected]">mailto:joseph.becker.ctr= @nrlssc.navy.mil</a>>> wrote:<br><br>I make the SRTM30_PLUS = file(s) that were mention. If you=92d like to make your own at a higher = resolution here is what I do:<br><br>a bit of byte swapping on the HGT = format file(s),<br>(optionally cat several altogether in a tmp = file),<br>(optionally) block median the small tiles together to get the = final resolution you would like,<br>and grid.<br><br><br>grd2xyz $cgiar = -s -bo3 -V |<br>blockmedian -bi3 -bo3 -I$resolution = -R$minX/$maxX/$minY/$maxY -C -V | \<br>xyz2grd -bi -G$grd = -R$minX/$maxX/$minY/$maxY -I$resolution -V<br><br><br>The block = median options can be used to handle the possibly troubling issues = arising from the question of what location to pick when selecting the = median height from a cloud of neighboring points (aka the center of the = down sampled pixel, the average location of the cloud, the location = whose height happens to be the median, etc=85)<br><br>-jj<br><br>On Aug = 9, 2014, at 3:13 PM, Gregory (Greg) Brenn <<a = href=3D"mailto:[email protected]">[email protected]</a><<a = href=3D"mailto:[email protected]">mailto:[email protected]</a>&g= t;> wrote:<br><br>Ok,<br><br>That's great. I downloaded an = unzipped .hgt files, so what do you think would be the best way to = convert the .hgt files (I have 4 that I want to convert) into .grd = files, then stich those files together? Could I use xyz2grd and = then use grdpaste?<br><br>Thanks a lot for your = help.<br>Greg<br><br><br>On Sat, Aug 9, 2014 at 2:44 PM, Fielding, Eric = J (329A) <<a = href=3D"mailto:[email protected]">[email protected]<= /a><<a = href=3D"mailto:[email protected]">mailto:[email protected]= sa.gov</a>>> wrote:<br>Yes, as Walter mentioned, the SRTM = 3-arcsecond (~90 m) digital topography<br>is available for most of the = Earth (up to 60 degrees N & S latitudes), and<br>it is much higher = resolution than the ETOPO1 data that is 1-arcminute or<br>about 2 km = spacing. The latest release is SRTM version 3.0. The Open<br>Topography = website has a new service that will assemble the data and<br>provide the = output in three formats<br>(<a = href=3D"http://www.opentopography.org/index.php/news/detail/srtm_version_3= 0_global">http://www.opentopography.org/index.php/news/detail/srtm_version= _30_global</a><br>_90m_and_united_states_30m_elevation_data_now_availab/&l= t;<a = href=3D"http://www.opentopography.org/index.php/news/detail/srtm_version_3= 0_global_90m_and_united_states_30m_elevation_data_now_availab/">http://www= .opentopography.org/index.php/news/detail/srtm_version_30_global_90m_and_u= nited_states_30m_elevation_data_now_availab/</a>>). The GeoTIFF = files<br>are easy to convert to GMT .grd files with GDAL.<br><br>++Eric = Fielding<br><br><br>-----Original Message-----<br>From: "Walter = Smith (HF)" <<a = href=3D"mailto:[email protected]">[email protected]</a><<= a = href=3D"mailto:[email protected]">mailto:[email protected]</= a>>><br>Reply-To: World-Wide GMT Usage and Help Mailing = List<br><<a = href=3D"mailto:[email protected]">[email protected]</a><= ;<a = href=3D"mailto:[email protected]">mailto:[email protected]= </a>>><br>Date: Saturday, August 9, 2014 11:04 AM<br>To: "<a = href=3D"mailto:[email protected]">[email protected]</a><= ;<a = href=3D"mailto:[email protected]">mailto:[email protected]= </a>>" <<a = href=3D"mailto:[email protected]">[email protected]</a><= ;<a = href=3D"mailto:[email protected]">mailto:[email protected]= </a>>><br>Subject: Re: [GMT-HELP] Pixelated, Regional Topograpy = Data<br><br><blockquote type=3D"cite">=B3pscoast=B2 is defaulting to a = low resolution coastline. Try adding -Df or<br>check the usage message = to get your highest option.<br><br>There is higher resolution topography = than ETOPO1, such as SRTM3. You=B9ll<br>have to search around and you = may have to assemble it from a few tiles<br>that you may have to = download separately.<br><br>Walter<br><br>On Aug 9, 2014, at 1:50 PM, = Gregory (Greg) Brenn <<a = href=3D"mailto:[email protected]">[email protected]</a><<a = href=3D"mailto:[email protected]">mailto:[email protected]</a>&g= t;><br>wrote:<br><br><blockquote type=3D"cite">Hello,<br><br>New user = of GMT here, and I'm attempting to create a map of Costa Rica<br>and = overlay coastlines and earthquake locations. Here is my = Script:<br><br>#!/bin/bash<br><br>clear<br><br>xyz2grd COSTARIC-6565.xyz = -Gcostarica.grd -R-87/-84/9/11 -I2m -V<br><br>grdimage costarica.grd = -JM12 -K -Cmy-topo.cpt -R-87/-84/9/11 >> map.ps<<a = href=3D"http://map.ps/">http://map.ps/</a>><br><br>pscoast -V -O -K = -JM -R -W1 >> mappy.ps<<a = href=3D"http://mappy.ps/">http://mappy.ps/</a>><br><br>psxy loc.txt = -JM12 -R-87/-84/9/11 -Sc.1 -G'45/59/100' -B1/1 -O >> map.ps<<a = href=3D"http://map.ps/">http://map.ps/</a>><br>gv map.ps<<a = href=3D"http://map.ps/">http://map.ps/</a>><br><br><br><br>I am using = a generic color palette which I can change easily, but the<br>coastlines = are extremely low quality, and the topography is = extremely<br>pixelated.<br><br>I look at images in papers, and there's = extremely high quality<br>topographic images of COsta Rica, for example, = as well as the coastlines<br>and bathymetry, but I have no idea where I = can get this high-quality<br>data. I have tried to get ETOPO data, = but I cannot seem to find where<br>to get high-quality data.<br><br>So I = guess my question is, is ETOPO1 the best place to get = high-quality<br>topo data, because I cannot seem to figure out how to = download data from<br>their website. Also, would I need to = download coastline data, as = well?<br><br><br><br>Thanks,<br><br>Greg<br><br>Mailing list for GMT = discussions of all kinds. If you are not sure you<br>have found a bug, = discuss it here first. To formally report bugs or<br>request features, = please register and add New Issue on<br><a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= To unsubscribe, send the message "signoff gmt-help"<br>to <a = href=3D"mailto:[email protected]">[email protected]</a><= ;<a = href=3D"mailto:[email protected]">mailto:[email protected]= </a>> Note: gmt-help will become obsolete on Sept<br>1, 2014 - please = use forum on <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= instead.<br></blockquote><br>Mailing list for GMT discussions of all = kinds. If you are not sure you<br>have found a bug, discuss it = here first.<br>To formally report bugs or request features, please = register and add New<br>Issue on <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= <br>To unsubscribe, send the message "signoff gmt-help" to<br><a = href=3D"mailto:[email protected]">[email protected]</a><= ;<a = href=3D"mailto:[email protected]">mailto:[email protected]= </a>><br>Note: gmt-help will become obsolete on Sept 1, 2014 - please = use forum on<br><a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= instead.<br></blockquote><br>Mailing list for GMT discussions of all = kinds. If you are not sure you have found a bug, discuss it here = first.<br>To formally report bugs or request features, please register = and add New Issue on <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= <br>To unsubscribe, send the message "signoff gmt-help" to <a = href=3D"mailto:[email protected]">[email protected]</a><= ;<a = href=3D"mailto:[email protected]">mailto:[email protected]= </a>><br>Note: gmt-help will become obsolete on Sept 1, 2014 - please = use forum on <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= instead.<br><br>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 <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= To unsubscribe, send the message "signoff gmt-help" to <a = href=3D"mailto:[email protected]">[email protected]</a><= ;<a = href=3D"mailto:[email protected]">mailto:[email protected]= </a>> Note: gmt-help will become obsolete on Sept 1, 2014 - please = use forum on <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><<a = href=3D"http://gmt.soest.hawaii.edu/">http://gmt.soest.hawaii.edu/</a>>= instead.<br><br>Mailing list for GMT discussions of all kinds. If = you are not sure you have found a bug, discuss it here first.<br>To = formally report bugs or request features, please register and add New = Issue on <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><br>To = unsubscribe, send the message "signoff gmt-help" to <a = href=3D"mailto:[email protected]">[email protected]</a><br= >Note: gmt-help will become obsolete on Sept 1, 2014 - please use forum = on <a href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a> = instead.<br></blockquote><br>Mailing list for GMT discussions of all = kinds. If you are not sure you have found a bug, discuss it here = first.<br>To formally report bugs or request features, please register = and add New Issue on <a = href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a><br>To = unsubscribe, send the message "signoff gmt-help" to <a = href=3D"mailto:[email protected]">[email protected]</a><br= >Note: gmt-help will become obsolete on Sept 1, 2014 - please use forum = on <a href=3D"http://gmt.soest.hawaii.edu">gmt.soest.hawaii.edu</a> = instead.<br></blockquote><br>Mailing list for GMT discussions of all = kinds. If you are not sure you have found a bug, discuss it here = first.<br>To formally report bugs or request features, please register = and add New Issue on<a = href=3D"http://gmt.soest.hawaii.edu/">gmt.soest.hawaii.edu</a><br>To = unsubscribe, send the message "signoff gmt-help" to<span = class=3D"Apple-converted-space"> </span><a = href=3D"mailto:[email protected]">[email protected]</a><br= >Note: gmt-help will become obsolete on Sept 1, 2014 - please use forum = on<a href=3D"http://gmt.soest.hawaii.edu/">gmt.soest.hawaii.edu</a><span = class=3D"Apple-converted-space"> </span>instead.</div></blockquote></= div><br></div></body></html>= 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 <a href=3D"mailto:[email protected]">[email protected]</a> Note: gmt-help will become obsolete on Sept 1, 2014 - please use forum on gmt.soest.hawaii.edu instead. --Apple-Mail=_7DD5E72B-E6CE-476E-B565-14E531990E47--