Creating polygons that share the boundaries of existing polygons












1















I'm creating polygon (that about actual vegetation).



First, I create one polygon



enter image description here



After that, I will create more polygons that share the boundaries of existing polygon.
But, it show result like below image.



enter image description here



How can I create polygons that share the boundaries of existing polygons.



And last, can I use trace method for creating polygon in QGIS?






qgis polygon trace create







share|improve this question

























  • Which version of QGIS are you using?

    – Erik
    8 hours ago











  • 2.18.17 version

    – Jung TaeJun
    8 hours ago
















1















I'm creating polygon (that about actual vegetation).



First, I create one polygon



enter image description here



After that, I will create more polygons that share the boundaries of existing polygon.
But, it show result like below image.



enter image description here



How can I create polygons that share the boundaries of existing polygons.



And last, can I use trace method for creating polygon in QGIS?






qgis polygon trace create







share|improve this question

























  • Which version of QGIS are you using?

    – Erik
    8 hours ago











  • 2.18.17 version

    – Jung TaeJun
    8 hours ago














1












1








1








I'm creating polygon (that about actual vegetation).



First, I create one polygon



enter image description here



After that, I will create more polygons that share the boundaries of existing polygon.
But, it show result like below image.



enter image description here



How can I create polygons that share the boundaries of existing polygons.



And last, can I use trace method for creating polygon in QGIS?






qgis polygon trace create







share|improve this question
















I'm creating polygon (that about actual vegetation).



First, I create one polygon



enter image description here



After that, I will create more polygons that share the boundaries of existing polygon.
But, it show result like below image.



enter image description here



How can I create polygons that share the boundaries of existing polygons.



And last, can I use trace method for creating polygon in QGIS?






qgis polygon trace create




qgis polygon trace create






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 8 hours ago









Vince

14.7k32749




14.7k32749










asked 9 hours ago









Jung TaeJunJung TaeJun

291




291













  • Which version of QGIS are you using?

    – Erik
    8 hours ago











  • 2.18.17 version

    – Jung TaeJun
    8 hours ago



















  • Which version of QGIS are you using?

    – Erik
    8 hours ago











  • 2.18.17 version

    – Jung TaeJun
    8 hours ago

















Which version of QGIS are you using?

– Erik
8 hours ago





Which version of QGIS are you using?

– Erik
8 hours ago













2.18.17 version

– Jung TaeJun
8 hours ago





2.18.17 version

– Jung TaeJun
8 hours ago










3 Answers
3






active

oldest

votes


















2














In QGis 3.x




  1. Enable the snapping toolbar and open snapping settings. Then, choose the advanced configuration and select your layer of interest
    enter image description here

  2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color

  3. When you are done, I suggest you to check the topology






share|improve this answer































    1














    To create polygons that shares boundaries with existing ones,



    In QGis 2.x




    1. Settings > snapping options > choose advanced and select your layer.
      Then define the snapping mode, the tolerance and your units
      enter image description here


    2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color


    3. When you are done, I suggest you to check the topology

    4. As the trace method, you may see Freehand Editing useful






    share|improve this answer































      0














      This digitising method might help:




      1. Set Avoid Intersections ON as mentioned above.

      2. Start digitising at a shared vertex or segment – digitise vertices that are not shared

      3. Continue digitising

      4. When you reach the last non-shared vertex – digitise a shared vertex

      5. Then to finish digitise a last point – but make sure that it is located in a place that ensures the polygon extends over all shared vertices – right click to finish digitsing the polygon.
        Digiting method


      QGIS will create all the vertices for the new polygon as shown below
      [completed polygon with shared boundary[2]






      share|improve this answer























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        3 Answers
        3






        active

        oldest

        votes








        3 Answers
        3






        active

        oldest

        votes









        active

        oldest

        votes






        active

        oldest

        votes









        2














        In QGis 3.x




        1. Enable the snapping toolbar and open snapping settings. Then, choose the advanced configuration and select your layer of interest
          enter image description here

        2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color

        3. When you are done, I suggest you to check the topology






        share|improve this answer




























          2














          In QGis 3.x




          1. Enable the snapping toolbar and open snapping settings. Then, choose the advanced configuration and select your layer of interest
            enter image description here

          2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color

          3. When you are done, I suggest you to check the topology






          share|improve this answer


























            2












            2








            2







            In QGis 3.x




            1. Enable the snapping toolbar and open snapping settings. Then, choose the advanced configuration and select your layer of interest
              enter image description here

            2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color

            3. When you are done, I suggest you to check the topology






            share|improve this answer













            In QGis 3.x




            1. Enable the snapping toolbar and open snapping settings. Then, choose the advanced configuration and select your layer of interest
              enter image description here

            2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color

            3. When you are done, I suggest you to check the topology







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 8 hours ago









            Yannick DOUNGMOYannick DOUNGMO

            178110




            178110

























                1














                To create polygons that shares boundaries with existing ones,



                In QGis 2.x




                1. Settings > snapping options > choose advanced and select your layer.
                  Then define the snapping mode, the tolerance and your units
                  enter image description here


                2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color


                3. When you are done, I suggest you to check the topology

                4. As the trace method, you may see Freehand Editing useful






                share|improve this answer




























                  1














                  To create polygons that shares boundaries with existing ones,



                  In QGis 2.x




                  1. Settings > snapping options > choose advanced and select your layer.
                    Then define the snapping mode, the tolerance and your units
                    enter image description here


                  2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color


                  3. When you are done, I suggest you to check the topology

                  4. As the trace method, you may see Freehand Editing useful






                  share|improve this answer


























                    1












                    1








                    1







                    To create polygons that shares boundaries with existing ones,



                    In QGis 2.x




                    1. Settings > snapping options > choose advanced and select your layer.
                      Then define the snapping mode, the tolerance and your units
                      enter image description here


                    2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color


                    3. When you are done, I suggest you to check the topology

                    4. As the trace method, you may see Freehand Editing useful






                    share|improve this answer













                    To create polygons that shares boundaries with existing ones,



                    In QGis 2.x




                    1. Settings > snapping options > choose advanced and select your layer.
                      Then define the snapping mode, the tolerance and your units
                      enter image description here


                    2. Go to Add Feature and start digitizing. When you will be close to a vertex, you should see a particular color


                    3. When you are done, I suggest you to check the topology

                    4. As the trace method, you may see Freehand Editing useful







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered 8 hours ago









                    Yannick DOUNGMOYannick DOUNGMO

                    178110




                    178110























                        0














                        This digitising method might help:




                        1. Set Avoid Intersections ON as mentioned above.

                        2. Start digitising at a shared vertex or segment – digitise vertices that are not shared

                        3. Continue digitising

                        4. When you reach the last non-shared vertex – digitise a shared vertex

                        5. Then to finish digitise a last point – but make sure that it is located in a place that ensures the polygon extends over all shared vertices – right click to finish digitsing the polygon.
                          Digiting method


                        QGIS will create all the vertices for the new polygon as shown below
                        [completed polygon with shared boundary[2]






                        share|improve this answer




























                          0














                          This digitising method might help:




                          1. Set Avoid Intersections ON as mentioned above.

                          2. Start digitising at a shared vertex or segment – digitise vertices that are not shared

                          3. Continue digitising

                          4. When you reach the last non-shared vertex – digitise a shared vertex

                          5. Then to finish digitise a last point – but make sure that it is located in a place that ensures the polygon extends over all shared vertices – right click to finish digitsing the polygon.
                            Digiting method


                          QGIS will create all the vertices for the new polygon as shown below
                          [completed polygon with shared boundary[2]






                          share|improve this answer


























                            0












                            0








                            0







                            This digitising method might help:




                            1. Set Avoid Intersections ON as mentioned above.

                            2. Start digitising at a shared vertex or segment – digitise vertices that are not shared

                            3. Continue digitising

                            4. When you reach the last non-shared vertex – digitise a shared vertex

                            5. Then to finish digitise a last point – but make sure that it is located in a place that ensures the polygon extends over all shared vertices – right click to finish digitsing the polygon.
                              Digiting method


                            QGIS will create all the vertices for the new polygon as shown below
                            [completed polygon with shared boundary[2]






                            share|improve this answer













                            This digitising method might help:




                            1. Set Avoid Intersections ON as mentioned above.

                            2. Start digitising at a shared vertex or segment – digitise vertices that are not shared

                            3. Continue digitising

                            4. When you reach the last non-shared vertex – digitise a shared vertex

                            5. Then to finish digitise a last point – but make sure that it is located in a place that ensures the polygon extends over all shared vertices – right click to finish digitsing the polygon.
                              Digiting method


                            QGIS will create all the vertices for the new polygon as shown below
                            [completed polygon with shared boundary[2]







                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered 7 hours ago









                            AquamarineAquamarine

                            1757




                            1757






























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