Make polygon circular in QGIS

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1
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I have drawn a polygon in a shape-layer, but it's not perfectly circular. Is there a way to either



  1. Draw a circular polygon with a given radius (in a shape-layer)

  2. Make a polygon into a circle

I have tried to work around this by creating a point and styling it like my area, but then my point scales with the zoom levels, and it doesn’t look very nice (yes, I am aware of the different styles for different zoom-levels, but that's a lot of work compared to "just" making a circle-polygon instead)



I am using QGIS 3.2.3 with GRASS 7.4.1






qgis qgis-3.0







share|improve this question





















  • I was just writing the same answer as @ahmadhanb...to add up to that: if you want to keep working with Points and their Labels/Symbology instead of Polygons (which might be useful, depending on what your intentions are), you can set all related units to either Map untis or the easier Meters at Scale to get zoom depended sizes.
    – ThingumaBob
    1 hour ago

















up vote
1
down vote

favorite












I have drawn a polygon in a shape-layer, but it's not perfectly circular. Is there a way to either



  1. Draw a circular polygon with a given radius (in a shape-layer)

  2. Make a polygon into a circle

I have tried to work around this by creating a point and styling it like my area, but then my point scales with the zoom levels, and it doesn’t look very nice (yes, I am aware of the different styles for different zoom-levels, but that's a lot of work compared to "just" making a circle-polygon instead)



I am using QGIS 3.2.3 with GRASS 7.4.1






qgis qgis-3.0







share|improve this question





















  • I was just writing the same answer as @ahmadhanb...to add up to that: if you want to keep working with Points and their Labels/Symbology instead of Polygons (which might be useful, depending on what your intentions are), you can set all related units to either Map untis or the easier Meters at Scale to get zoom depended sizes.
    – ThingumaBob
    1 hour ago













up vote
1
down vote

favorite









up vote
1
down vote

favorite











I have drawn a polygon in a shape-layer, but it's not perfectly circular. Is there a way to either



  1. Draw a circular polygon with a given radius (in a shape-layer)

  2. Make a polygon into a circle

I have tried to work around this by creating a point and styling it like my area, but then my point scales with the zoom levels, and it doesn’t look very nice (yes, I am aware of the different styles for different zoom-levels, but that's a lot of work compared to "just" making a circle-polygon instead)



I am using QGIS 3.2.3 with GRASS 7.4.1






qgis qgis-3.0







share|improve this question













I have drawn a polygon in a shape-layer, but it's not perfectly circular. Is there a way to either



  1. Draw a circular polygon with a given radius (in a shape-layer)

  2. Make a polygon into a circle

I have tried to work around this by creating a point and styling it like my area, but then my point scales with the zoom levels, and it doesn’t look very nice (yes, I am aware of the different styles for different zoom-levels, but that's a lot of work compared to "just" making a circle-polygon instead)



I am using QGIS 3.2.3 with GRASS 7.4.1






qgis qgis-3.0




qgis qgis-3.0






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 1 hour ago









Fredrik

505




505











  • I was just writing the same answer as @ahmadhanb...to add up to that: if you want to keep working with Points and their Labels/Symbology instead of Polygons (which might be useful, depending on what your intentions are), you can set all related units to either Map untis or the easier Meters at Scale to get zoom depended sizes.
    – ThingumaBob
    1 hour ago

















  • I was just writing the same answer as @ahmadhanb...to add up to that: if you want to keep working with Points and their Labels/Symbology instead of Polygons (which might be useful, depending on what your intentions are), you can set all related units to either Map untis or the easier Meters at Scale to get zoom depended sizes.
    – ThingumaBob
    1 hour ago
















I was just writing the same answer as @ahmadhanb...to add up to that: if you want to keep working with Points and their Labels/Symbology instead of Polygons (which might be useful, depending on what your intentions are), you can set all related units to either Map untis or the easier Meters at Scale to get zoom depended sizes.
– ThingumaBob
1 hour ago





I was just writing the same answer as @ahmadhanb...to add up to that: if you want to keep working with Points and their Labels/Symbology instead of Polygons (which might be useful, depending on what your intentions are), you can set all related units to either Map untis or the easier Meters at Scale to get zoom depended sizes.
– ThingumaBob
1 hour ago











2 Answers
2






active

oldest

votes

















up vote
3
down vote



accepted










You can use Shape Digitizing tools which give the option to create circles as you like:



enter image description here



If it is not shown in QGIS 3, you can enable the toolbar by right-click any where in top menu bars and select Shape Digitizing tools:



enter image description here



Using Add circle by a center point and any other point, I could create a perfect circle:



enter image description here



enter image description here






share|improve this answer



























    up vote
    1
    down vote













    As far as i know, the definition of the shape format doesn't allow circles. So if you save as a shapefile you will end with a polygon.






    share|improve this answer








    New contributor




    Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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    • If it looks like a circle thats good enough for me, i.e. enough points on a polygon to appear to be a circle
      – Fredrik
      9 mins ago










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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    3
    down vote



    accepted










    You can use Shape Digitizing tools which give the option to create circles as you like:



    enter image description here



    If it is not shown in QGIS 3, you can enable the toolbar by right-click any where in top menu bars and select Shape Digitizing tools:



    enter image description here



    Using Add circle by a center point and any other point, I could create a perfect circle:



    enter image description here



    enter image description here






    share|improve this answer
























      up vote
      3
      down vote



      accepted










      You can use Shape Digitizing tools which give the option to create circles as you like:



      enter image description here



      If it is not shown in QGIS 3, you can enable the toolbar by right-click any where in top menu bars and select Shape Digitizing tools:



      enter image description here



      Using Add circle by a center point and any other point, I could create a perfect circle:



      enter image description here



      enter image description here






      share|improve this answer






















        up vote
        3
        down vote



        accepted







        up vote
        3
        down vote



        accepted






        You can use Shape Digitizing tools which give the option to create circles as you like:



        enter image description here



        If it is not shown in QGIS 3, you can enable the toolbar by right-click any where in top menu bars and select Shape Digitizing tools:



        enter image description here



        Using Add circle by a center point and any other point, I could create a perfect circle:



        enter image description here



        enter image description here






        share|improve this answer












        You can use Shape Digitizing tools which give the option to create circles as you like:



        enter image description here



        If it is not shown in QGIS 3, you can enable the toolbar by right-click any where in top menu bars and select Shape Digitizing tools:



        enter image description here



        Using Add circle by a center point and any other point, I could create a perfect circle:



        enter image description here



        enter image description here







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 1 hour ago









        ahmadhanb

        19k21644




        19k21644






















            up vote
            1
            down vote













            As far as i know, the definition of the shape format doesn't allow circles. So if you save as a shapefile you will end with a polygon.






            share|improve this answer








            New contributor




            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.

















            • If it looks like a circle thats good enough for me, i.e. enough points on a polygon to appear to be a circle
              – Fredrik
              9 mins ago














            up vote
            1
            down vote













            As far as i know, the definition of the shape format doesn't allow circles. So if you save as a shapefile you will end with a polygon.






            share|improve this answer








            New contributor




            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.

















            • If it looks like a circle thats good enough for me, i.e. enough points on a polygon to appear to be a circle
              – Fredrik
              9 mins ago












            up vote
            1
            down vote










            up vote
            1
            down vote









            As far as i know, the definition of the shape format doesn't allow circles. So if you save as a shapefile you will end with a polygon.






            share|improve this answer








            New contributor




            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.









            As far as i know, the definition of the shape format doesn't allow circles. So if you save as a shapefile you will end with a polygon.







            share|improve this answer








            New contributor




            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.









            share|improve this answer



            share|improve this answer






            New contributor




            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.









            answered 23 mins ago









            Robert

            111




            111




            New contributor




            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.





            New contributor





            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.






            Robert is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.











            • If it looks like a circle thats good enough for me, i.e. enough points on a polygon to appear to be a circle
              – Fredrik
              9 mins ago
















            • If it looks like a circle thats good enough for me, i.e. enough points on a polygon to appear to be a circle
              – Fredrik
              9 mins ago















            If it looks like a circle thats good enough for me, i.e. enough points on a polygon to appear to be a circle
            – Fredrik
            9 mins ago




            If it looks like a circle thats good enough for me, i.e. enough points on a polygon to appear to be a circle
            – Fredrik
            9 mins ago

















             

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