Excellent Maps BUT Your Globe has the correct shape of Continents and as a guide Greenland is 1/3 the size of Australia. However, your Flat Map does not show the correct relative sizes of the land masses and is more a Mercator projection which amplifies land mass in the Northern Hemisphere compared to the Southern. The Globe land mass shapes need to be presented on the flat map. Would you please correct. Thankyou. David G Reproducible: Always
Can you explain what program you are talking about?
Hello Raphael, http://www.thefreewindows.com/3952/marble-a-free-virtual-globe-and-world-atlas/ This is the 'Marbel - Virtual Globe'. The story goes that in the time of Mercator in 1659, very little was known of the Southern Hemisphere and his design amplified the Northern Hemisphere which suited those in control, at the expense of the Southern. On your Marble you have a full Mercator and a half Mercatoir, both incorrect when it comes to matching the relative sizes of the Continents. I have searched Google for a correct map and none exist. Taking your Globe and presenting it on a flat plane is what will give a correct representation. This will be a first. Thankyou. David G On 11/07/2015 9:43 PM, Raphael Kubo da Costa wrote: > https://bugs.kde.org/show_bug.cgi?id=350105 > > --- Comment #1 from Raphael Kubo da Costa <rakuco@FreeBSD.org> --- > Can you explain what program you are talking about? >
Reassigning to the right component/assignee.
From Google Earth Help: "What is a Map Projection? A map projection is a mathematical expression that is used to represent the round, 3D surface of the earth on a flat, 2D map. This process always results in distortion to one or more map properties, such as area, scale, shape, or direction. Because of this, hundreds of projections have been developed in order to accurately represent a particular map element or to best suit a particular type of map." The flat map and mercator projections available in Marble are not supposed to preserve area measure. You might be looking for a projection from https://en.m.wikipedia.org/wiki/Cylindrical_equal-area_projection There is a (not yet finished) patch at https://git.reviewboard.kde.org/r/123538/ which implements the Gall-Peters projection, see https://en.m.wikipedia.org/wiki/Gall–Peters_projection . Maybe you're looking for that one?
Hello Dennis, Thankyou for responding. Not going to be happy with any of those until I see a translation from yout Marble Globe onto a flat surface. The compression at the North Pole is most unreal as is the stretching distotion at the South. Have never agreed with a Gall-Peters due to the distortions involved unless someone can explain why it needs to be distorted from what I can see on my 15" Globe I have here. This will always be a problem until someone flattens out the Globe correctly and will be a first. I am not bad at CAD but in electronics and will have a go but this needs to be done and done correctly maintaining all relevant relationships with respect to true sizes. There are several problems here in that we are not really sure just how much NASA is hiding from us in a true picture of the Earth Globe as taken from Space. Secondly we have a problem in that engineers do not consider any curvature calculations when they decide to build a subway under a city and I am asking WHY? This applies to roads and railways and mountain tunnels as well etc. Thirdly I am rain engineering here and have also found that there is no curvature to the Earth as my magnetic long distance directional pointing is some 10º astray. The Australian Bureau Of Meteorology has failed to respond to my letter on this question of 'no curvature'. Can you translate your Marble Globe onto a flat surface, maintaining correct size relationships? Thankyou. David G On 12/07/2015 8:45 AM, Dennis Nienhüser wrote: > https://bugs.kde.org/show_bug.cgi?id=350105 > > Dennis Nienhüser <nienhueser@kde.org> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > Status|UNCONFIRMED |NEEDSINFO > Resolution|--- |WAITINGFORINFO > CC| |nienhueser@kde.org > > --- Comment #4 from Dennis Nienhüser <nienhueser@kde.org> --- > >From Google Earth Help: "What is a Map Projection? A map projection is a > mathematical expression that is used to represent the round, 3D surface of the > earth on a flat, 2D map. This process always results in distortion to one or > more map properties, such as area, scale, shape, or direction. Because of this, > hundreds of projections have been developed in order to accurately represent a > particular map element or to best suit a particular type of map." > > The flat map and mercator projections available in Marble are not supposed to > preserve area measure. > > You might be looking for a projection from > https://en.m.wikipedia.org/wiki/Cylindrical_equal-area_projection > There is a (not yet finished) patch at > https://git.reviewboard.kde.org/r/123538/ which implements the Gall-Peters > > projection, see https://en.m.wikipedia.org/wiki/Gall–Peters_projection . Maybe > you're looking for that one? >
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Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!