Move a polygon to a different place on the globe, while maintaining its true geographical size? (QGIS)Generalizing polygon file while maintaining topology in QGIS?heat map of density ratio of 2 layers of pointsQGIS Units and ScaleProvider feature filter causes QGIS rendering to stopUsing pyproj and Mercator: x_0=0 and y_0=0?Comparing projections with RHow to merge raster scenes while maintaining small file size?Move a polygon to specific placeExpanding polygons and clipping at midpoint?How to transform a shapefile's projection in ArcGIS?

I'm in charge of equipment buying but no one's ever happy with what I choose. How to fix this?

Escape a backup date in a file name

Did Dumbledore lie to Harry about how long he had James Potter's invisibility cloak when he was examining it? If so, why?

Pole-zeros of a real-valued causal FIR system

How easy is it to start Magic from scratch?

Is there a problem with hiding "forgot password" until it's needed?

Would a high gravity rocky planet be guaranteed to have an atmosphere?

Do sorcerers' Subtle Spells require a skill check to be unseen?

Efficient way to transport a Stargate

Arithmetic mean geometric mean inequality unclear

What is the difference between "behavior" and "behaviour"?

What is paid subscription needed for in Mortal Kombat 11?

Two monoidal structures and copowering

How long to clear the 'suck zone' of a turbofan after start is initiated?

Unreliable Magic - Is it worth it?

Return the Closest Prime Number

Avoiding estate tax by giving multiple gifts

How does buying out courses with grant money work?

Sort a list by elements of another list

Was Spock the First Vulcan in Starfleet?

Short story about space worker geeks who zone out by 'listening' to radiation from stars

How did Arya survive the stabbing?

A Rare Riley Riddle

Go Pregnant or Go Home



Move a polygon to a different place on the globe, while maintaining its true geographical size? (QGIS)


Generalizing polygon file while maintaining topology in QGIS?heat map of density ratio of 2 layers of pointsQGIS Units and ScaleProvider feature filter causes QGIS rendering to stopUsing pyproj and Mercator: x_0=0 and y_0=0?Comparing projections with RHow to merge raster scenes while maintaining small file size?Move a polygon to specific placeExpanding polygons and clipping at midpoint?How to transform a shapefile's projection in ArcGIS?













6















I'm trying to do something similar to the Greenland vs Africa comparison -- superimpose one country over another, showing how their true sizes compare (the example on the right).



Greenland vs Africa



Thought this would be a simple thing to do, but now that I am trying to do it, I'm having a hard time figuring it out. Is there a simple way to do this, ideally using Qgis?










share|improve this question




























    6















    I'm trying to do something similar to the Greenland vs Africa comparison -- superimpose one country over another, showing how their true sizes compare (the example on the right).



    Greenland vs Africa



    Thought this would be a simple thing to do, but now that I am trying to do it, I'm having a hard time figuring it out. Is there a simple way to do this, ideally using Qgis?










    share|improve this question


























      6












      6








      6








      I'm trying to do something similar to the Greenland vs Africa comparison -- superimpose one country over another, showing how their true sizes compare (the example on the right).



      Greenland vs Africa



      Thought this would be a simple thing to do, but now that I am trying to do it, I'm having a hard time figuring it out. Is there a simple way to do this, ideally using Qgis?










      share|improve this question
















      I'm trying to do something similar to the Greenland vs Africa comparison -- superimpose one country over another, showing how their true sizes compare (the example on the right).



      Greenland vs Africa



      Thought this would be a simple thing to do, but now that I am trying to do it, I'm having a hard time figuring it out. Is there a simple way to do this, ideally using Qgis?







      qgis coordinate-system






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 16 hours ago









      nmtoken

      8,06642866




      8,06642866










      asked Dec 4 '15 at 4:37









      mgalkamgalka

      30027




      30027




















          3 Answers
          3






          active

          oldest

          votes


















          4














          you should project your data into an equal area projection (e.g. cylindrical equal area, EPSG:9835). Then you can move your polygon to another place in order to illustrate the size difference. After saving your edit, you can project back to Mercator so that the shape of Africa (or your other country of interest) is the same.






          share|improve this answer






























            0














            I suggest you save as, the shape that you want to move as a new shapefile and move it however ever you want. However, have the original shapefile that is not moved. Having separate shapefiles allows you to maneuver the shape and save your edits without tampering with the original and correct dataset.






            share|improve this answer






























              0














              You can achieve this visually in a Print Layout without manipulating your data.




              1. Create two maps in print layout. Center one map on country 1, and the other map on country 2. Change the item Id of each map to the name of the country in that map.



                enter image description here



              2. Move the front map on top of the back map, and resize one of the map so they're the same size. Turn off the background for the front map. Set both maps to the same scale.



              3. Set the CRS of both maps to an equal area projected coordinate system. Note that the scale of the map item may change when you change the CRS, so make sure to change it back so both maps are at the same scale.




                • Here's what Africa and Greenland look like with both maps in EPSG:54036 World_Cylindrical_Equal_Area.



                  enter image description here



                Looks terrible, right? That's because Greenland is really close to the North Pole, and Africa is centered on the Equator. They're never going to look good in the same projection.




              4. In cases where the two countries are at very different latitudes, and/or one of them is close to a pole, they won't look "right" in the same projection. Change the CRS of each map to a projection centered on the country in that map. Ideally these would be similar types of projections, eg both Albers equal area conic. Unfortunately in the case of Greenland, the options are quite limited. Try out some different combinations, and see what you're happy with.




                • Here's what Greenland and Africa look like in EPSG:5938 WGS 84 / EPSG Greenland Polar Stereographic and EPSG:102022 Africa_Albers_Equal_Area_Conic, respectively:



                  enter image description here




                • Here's what Greenland and Africa look like with the Greenland map changed to EPSG: 3574 WGS 84 / North Pole LAEA Atlantic, and Africa still in Africa_Albers_Equal_Area_Conic:



                  enter image description here








              share|improve this answer






















                Your Answer








                StackExchange.ready(function()
                var channelOptions =
                tags: "".split(" "),
                id: "79"
                ;
                initTagRenderer("".split(" "), "".split(" "), channelOptions);

                StackExchange.using("externalEditor", function()
                // Have to fire editor after snippets, if snippets enabled
                if (StackExchange.settings.snippets.snippetsEnabled)
                StackExchange.using("snippets", function()
                createEditor();
                );

                else
                createEditor();

                );

                function createEditor()
                StackExchange.prepareEditor(
                heartbeatType: 'answer',
                autoActivateHeartbeat: false,
                convertImagesToLinks: false,
                noModals: true,
                showLowRepImageUploadWarning: true,
                reputationToPostImages: null,
                bindNavPrevention: true,
                postfix: "",
                imageUploader:
                brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
                contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
                allowUrls: true
                ,
                onDemand: true,
                discardSelector: ".discard-answer"
                ,immediatelyShowMarkdownHelp:true
                );



                );













                draft saved

                draft discarded


















                StackExchange.ready(
                function ()
                StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f172581%2fmove-a-polygon-to-a-different-place-on-the-globe-while-maintaining-its-true-geo%23new-answer', 'question_page');

                );

                Post as a guest















                Required, but never shown

























                3 Answers
                3






                active

                oldest

                votes








                3 Answers
                3






                active

                oldest

                votes









                active

                oldest

                votes






                active

                oldest

                votes









                4














                you should project your data into an equal area projection (e.g. cylindrical equal area, EPSG:9835). Then you can move your polygon to another place in order to illustrate the size difference. After saving your edit, you can project back to Mercator so that the shape of Africa (or your other country of interest) is the same.






                share|improve this answer



























                  4














                  you should project your data into an equal area projection (e.g. cylindrical equal area, EPSG:9835). Then you can move your polygon to another place in order to illustrate the size difference. After saving your edit, you can project back to Mercator so that the shape of Africa (or your other country of interest) is the same.






                  share|improve this answer

























                    4












                    4








                    4







                    you should project your data into an equal area projection (e.g. cylindrical equal area, EPSG:9835). Then you can move your polygon to another place in order to illustrate the size difference. After saving your edit, you can project back to Mercator so that the shape of Africa (or your other country of interest) is the same.






                    share|improve this answer













                    you should project your data into an equal area projection (e.g. cylindrical equal area, EPSG:9835). Then you can move your polygon to another place in order to illustrate the size difference. After saving your edit, you can project back to Mercator so that the shape of Africa (or your other country of interest) is the same.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered 16 hours ago









                    radouxjuradouxju

                    41.2k144121




                    41.2k144121























                        0














                        I suggest you save as, the shape that you want to move as a new shapefile and move it however ever you want. However, have the original shapefile that is not moved. Having separate shapefiles allows you to maneuver the shape and save your edits without tampering with the original and correct dataset.






                        share|improve this answer



























                          0














                          I suggest you save as, the shape that you want to move as a new shapefile and move it however ever you want. However, have the original shapefile that is not moved. Having separate shapefiles allows you to maneuver the shape and save your edits without tampering with the original and correct dataset.






                          share|improve this answer

























                            0












                            0








                            0







                            I suggest you save as, the shape that you want to move as a new shapefile and move it however ever you want. However, have the original shapefile that is not moved. Having separate shapefiles allows you to maneuver the shape and save your edits without tampering with the original and correct dataset.






                            share|improve this answer













                            I suggest you save as, the shape that you want to move as a new shapefile and move it however ever you want. However, have the original shapefile that is not moved. Having separate shapefiles allows you to maneuver the shape and save your edits without tampering with the original and correct dataset.







                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered 17 hours ago









                            Nauwanga NauwangaNauwanga Nauwanga

                            7217




                            7217





















                                0














                                You can achieve this visually in a Print Layout without manipulating your data.




                                1. Create two maps in print layout. Center one map on country 1, and the other map on country 2. Change the item Id of each map to the name of the country in that map.



                                  enter image description here



                                2. Move the front map on top of the back map, and resize one of the map so they're the same size. Turn off the background for the front map. Set both maps to the same scale.



                                3. Set the CRS of both maps to an equal area projected coordinate system. Note that the scale of the map item may change when you change the CRS, so make sure to change it back so both maps are at the same scale.




                                  • Here's what Africa and Greenland look like with both maps in EPSG:54036 World_Cylindrical_Equal_Area.



                                    enter image description here



                                  Looks terrible, right? That's because Greenland is really close to the North Pole, and Africa is centered on the Equator. They're never going to look good in the same projection.




                                4. In cases where the two countries are at very different latitudes, and/or one of them is close to a pole, they won't look "right" in the same projection. Change the CRS of each map to a projection centered on the country in that map. Ideally these would be similar types of projections, eg both Albers equal area conic. Unfortunately in the case of Greenland, the options are quite limited. Try out some different combinations, and see what you're happy with.




                                  • Here's what Greenland and Africa look like in EPSG:5938 WGS 84 / EPSG Greenland Polar Stereographic and EPSG:102022 Africa_Albers_Equal_Area_Conic, respectively:



                                    enter image description here




                                  • Here's what Greenland and Africa look like with the Greenland map changed to EPSG: 3574 WGS 84 / North Pole LAEA Atlantic, and Africa still in Africa_Albers_Equal_Area_Conic:



                                    enter image description here








                                share|improve this answer



























                                  0














                                  You can achieve this visually in a Print Layout without manipulating your data.




                                  1. Create two maps in print layout. Center one map on country 1, and the other map on country 2. Change the item Id of each map to the name of the country in that map.



                                    enter image description here



                                  2. Move the front map on top of the back map, and resize one of the map so they're the same size. Turn off the background for the front map. Set both maps to the same scale.



                                  3. Set the CRS of both maps to an equal area projected coordinate system. Note that the scale of the map item may change when you change the CRS, so make sure to change it back so both maps are at the same scale.




                                    • Here's what Africa and Greenland look like with both maps in EPSG:54036 World_Cylindrical_Equal_Area.



                                      enter image description here



                                    Looks terrible, right? That's because Greenland is really close to the North Pole, and Africa is centered on the Equator. They're never going to look good in the same projection.




                                  4. In cases where the two countries are at very different latitudes, and/or one of them is close to a pole, they won't look "right" in the same projection. Change the CRS of each map to a projection centered on the country in that map. Ideally these would be similar types of projections, eg both Albers equal area conic. Unfortunately in the case of Greenland, the options are quite limited. Try out some different combinations, and see what you're happy with.




                                    • Here's what Greenland and Africa look like in EPSG:5938 WGS 84 / EPSG Greenland Polar Stereographic and EPSG:102022 Africa_Albers_Equal_Area_Conic, respectively:



                                      enter image description here




                                    • Here's what Greenland and Africa look like with the Greenland map changed to EPSG: 3574 WGS 84 / North Pole LAEA Atlantic, and Africa still in Africa_Albers_Equal_Area_Conic:



                                      enter image description here








                                  share|improve this answer

























                                    0












                                    0








                                    0







                                    You can achieve this visually in a Print Layout without manipulating your data.




                                    1. Create two maps in print layout. Center one map on country 1, and the other map on country 2. Change the item Id of each map to the name of the country in that map.



                                      enter image description here



                                    2. Move the front map on top of the back map, and resize one of the map so they're the same size. Turn off the background for the front map. Set both maps to the same scale.



                                    3. Set the CRS of both maps to an equal area projected coordinate system. Note that the scale of the map item may change when you change the CRS, so make sure to change it back so both maps are at the same scale.




                                      • Here's what Africa and Greenland look like with both maps in EPSG:54036 World_Cylindrical_Equal_Area.



                                        enter image description here



                                      Looks terrible, right? That's because Greenland is really close to the North Pole, and Africa is centered on the Equator. They're never going to look good in the same projection.




                                    4. In cases where the two countries are at very different latitudes, and/or one of them is close to a pole, they won't look "right" in the same projection. Change the CRS of each map to a projection centered on the country in that map. Ideally these would be similar types of projections, eg both Albers equal area conic. Unfortunately in the case of Greenland, the options are quite limited. Try out some different combinations, and see what you're happy with.




                                      • Here's what Greenland and Africa look like in EPSG:5938 WGS 84 / EPSG Greenland Polar Stereographic and EPSG:102022 Africa_Albers_Equal_Area_Conic, respectively:



                                        enter image description here




                                      • Here's what Greenland and Africa look like with the Greenland map changed to EPSG: 3574 WGS 84 / North Pole LAEA Atlantic, and Africa still in Africa_Albers_Equal_Area_Conic:



                                        enter image description here








                                    share|improve this answer













                                    You can achieve this visually in a Print Layout without manipulating your data.




                                    1. Create two maps in print layout. Center one map on country 1, and the other map on country 2. Change the item Id of each map to the name of the country in that map.



                                      enter image description here



                                    2. Move the front map on top of the back map, and resize one of the map so they're the same size. Turn off the background for the front map. Set both maps to the same scale.



                                    3. Set the CRS of both maps to an equal area projected coordinate system. Note that the scale of the map item may change when you change the CRS, so make sure to change it back so both maps are at the same scale.




                                      • Here's what Africa and Greenland look like with both maps in EPSG:54036 World_Cylindrical_Equal_Area.



                                        enter image description here



                                      Looks terrible, right? That's because Greenland is really close to the North Pole, and Africa is centered on the Equator. They're never going to look good in the same projection.




                                    4. In cases where the two countries are at very different latitudes, and/or one of them is close to a pole, they won't look "right" in the same projection. Change the CRS of each map to a projection centered on the country in that map. Ideally these would be similar types of projections, eg both Albers equal area conic. Unfortunately in the case of Greenland, the options are quite limited. Try out some different combinations, and see what you're happy with.




                                      • Here's what Greenland and Africa look like in EPSG:5938 WGS 84 / EPSG Greenland Polar Stereographic and EPSG:102022 Africa_Albers_Equal_Area_Conic, respectively:



                                        enter image description here




                                      • Here's what Greenland and Africa look like with the Greenland map changed to EPSG: 3574 WGS 84 / North Pole LAEA Atlantic, and Africa still in Africa_Albers_Equal_Area_Conic:



                                        enter image description here









                                    share|improve this answer












                                    share|improve this answer



                                    share|improve this answer










                                    answered 13 hours ago









                                    cskcsk

                                    9,3531035




                                    9,3531035



























                                        draft saved

                                        draft discarded
















































                                        Thanks for contributing an answer to Geographic Information Systems Stack Exchange!


                                        • Please be sure to answer the question. Provide details and share your research!

                                        But avoid


                                        • Asking for help, clarification, or responding to other answers.

                                        • Making statements based on opinion; back them up with references or personal experience.

                                        To learn more, see our tips on writing great answers.




                                        draft saved


                                        draft discarded














                                        StackExchange.ready(
                                        function ()
                                        StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f172581%2fmove-a-polygon-to-a-different-place-on-the-globe-while-maintaining-its-true-geo%23new-answer', 'question_page');

                                        );

                                        Post as a guest















                                        Required, but never shown





















































                                        Required, but never shown














                                        Required, but never shown












                                        Required, but never shown







                                        Required, but never shown

































                                        Required, but never shown














                                        Required, but never shown












                                        Required, but never shown







                                        Required, but never shown







                                        Popular posts from this blog

                                        រឿង រ៉ូមេអូ និង ហ្ស៊ុយលីយេ សង្ខេបរឿង តួអង្គ បញ្ជីណែនាំ

                                        Crop image to path created in TikZ? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Crop an inserted image?TikZ pictures does not appear in posterImage behind and beyond crop marks?Tikz picture as large as possible on A4 PageTransparency vs image compression dilemmaHow to crop background from image automatically?Image does not cropTikzexternal capturing crop marks when externalizing pgfplots?How to include image path that contains a dollar signCrop image with left size given

                                        Romeo and Juliet ContentsCharactersSynopsisSourcesDate and textThemes and motifsCriticism and interpretationLegacyScene by sceneSee alsoNotes and referencesSourcesExternal linksNavigation menu"Consumer Price Index (estimate) 1800–"10.2307/28710160037-3222287101610.1093/res/II.5.31910.2307/45967845967810.2307/2869925286992510.1525/jams.1982.35.3.03a00050"Dada Masilo: South African dancer who breaks the rules"10.1093/res/os-XV.57.1610.2307/28680942868094"Sweet Sorrow: Mann-Korman's Romeo and Juliet Closes Sept. 5 at MN's Ordway"the original10.2307/45957745957710.1017/CCOL0521570476.009"Ram Leela box office collections hit massive Rs 100 crore, pulverises prediction"Archived"Broadway Revival of Romeo and Juliet, Starring Orlando Bloom and Condola Rashad, Will Close Dec. 8"Archived10.1075/jhp.7.1.04hon"Wherefore art thou, Romeo? To make us laugh at Navy Pier"the original10.1093/gmo/9781561592630.article.O006772"Ram-leela Review Roundup: Critics Hail Film as Best Adaptation of Romeo and Juliet"Archived10.2307/31946310047-77293194631"Romeo and Juliet get Twitter treatment""Juliet's Nurse by Lois Leveen""Romeo and Juliet: Orlando Bloom's Broadway Debut Released in Theaters for Valentine's Day"Archived"Romeo and Juliet Has No Balcony"10.1093/gmo/9781561592630.article.O00778110.2307/2867423286742310.1076/enst.82.2.115.959510.1080/00138380601042675"A plague o' both your houses: error in GCSE exam paper forces apology""Juliet of the Five O'Clock Shadow, and Other Wonders"10.2307/33912430027-4321339124310.2307/28487440038-7134284874410.2307/29123140149-661129123144728341M"Weekender Guide: Shakespeare on The Drive""balcony"UK public library membership"romeo"UK public library membership10.1017/CCOL9780521844291"Post-Zionist Critique on Israel and the Palestinians Part III: Popular Culture"10.2307/25379071533-86140377-919X2537907"Capulets and Montagues: UK exam board admit mixing names up in Romeo and Juliet paper"Istoria Novellamente Ritrovata di Due Nobili Amanti2027/mdp.390150822329610820-750X"GCSE exam error: Board accidentally rewrites Shakespeare"10.2307/29176390149-66112917639"Exam board apologises after error in English GCSE paper which confused characters in Shakespeare's Romeo and Juliet""From Mariotto and Ganozza to Romeo and Guilietta: Metamorphoses of a Renaissance Tale"10.2307/37323537323510.2307/2867455286745510.2307/28678912867891"10 Questions for Taylor Swift"10.2307/28680922868092"Haymarket Theatre""The Zeffirelli Way: Revealing Talk by Florentine Director""Michael Smuin: 1938-2007 / Prolific dance director had showy career"The Life and Art of Edwin BoothRomeo and JulietRomeo and JulietRomeo and JulietRomeo and JulietEasy Read Romeo and JulietRomeo and Julieteeecb12003684p(data)4099369-3n8211610759dbe00d-a9e2-41a3-b2c1-977dd692899302814385X313670221313670221