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QGIS Polygon Selection


Highlighting and exporting raster layer based on vector polygonSumming attribute values for areas where multiple polygons overlap using QGIS?2D point cloud to polygonCentroid coordinates for odd-shaped polygonsQGIS object selecting if any segment length is longer thanQGIS - select or export point attributes by polygon featurePolygon to polyline conversionSelection feature acting weird on queried layer in QGISProcessing tool to fill all voids within a lines layerSelecting connected lines between start and end point in QGIS?






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








1















I want to select a polygon using QGIS. The polygon is only represented via it's boundaries (I chose not to fill the area in order to highlight the problem). Why are not all lines that surround the polygon selected? See picture below. A similar problem occurs when two polygons overlap: only one polygon is highlighted.



enter image description here










share|improve this question
























  • Are those blue lines actuylly polygons as well or just lines?

    – HimBromBeere
    Mar 27 at 13:25











  • they are polygons. The area colour is inivisble (no fill).

    – kalakaru
    Mar 27 at 13:32


















1















I want to select a polygon using QGIS. The polygon is only represented via it's boundaries (I chose not to fill the area in order to highlight the problem). Why are not all lines that surround the polygon selected? See picture below. A similar problem occurs when two polygons overlap: only one polygon is highlighted.



enter image description here










share|improve this question
























  • Are those blue lines actuylly polygons as well or just lines?

    – HimBromBeere
    Mar 27 at 13:25











  • they are polygons. The area colour is inivisble (no fill).

    – kalakaru
    Mar 27 at 13:32














1












1








1








I want to select a polygon using QGIS. The polygon is only represented via it's boundaries (I chose not to fill the area in order to highlight the problem). Why are not all lines that surround the polygon selected? See picture below. A similar problem occurs when two polygons overlap: only one polygon is highlighted.



enter image description here










share|improve this question
















I want to select a polygon using QGIS. The polygon is only represented via it's boundaries (I chose not to fill the area in order to highlight the problem). Why are not all lines that surround the polygon selected? See picture below. A similar problem occurs when two polygons overlap: only one polygon is highlighted.



enter image description here







qgis polygon select






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 27 at 13:34







kalakaru

















asked Mar 27 at 13:18









kalakarukalakaru

14010




14010












  • Are those blue lines actuylly polygons as well or just lines?

    – HimBromBeere
    Mar 27 at 13:25











  • they are polygons. The area colour is inivisble (no fill).

    – kalakaru
    Mar 27 at 13:32


















  • Are those blue lines actuylly polygons as well or just lines?

    – HimBromBeere
    Mar 27 at 13:25











  • they are polygons. The area colour is inivisble (no fill).

    – kalakaru
    Mar 27 at 13:32

















Are those blue lines actuylly polygons as well or just lines?

– HimBromBeere
Mar 27 at 13:25





Are those blue lines actuylly polygons as well or just lines?

– HimBromBeere
Mar 27 at 13:25













they are polygons. The area colour is inivisble (no fill).

– kalakaru
Mar 27 at 13:32






they are polygons. The area colour is inivisble (no fill).

– kalakaru
Mar 27 at 13:32











2 Answers
2






active

oldest

votes


















3














This is due to the drawing order of your polygon. The other ones are probably drawn after the selected one. The last drawn is rendered on top of the others. That's why the border of the selected one is partialy hidden






share|improve this answer























  • Is there a way I can change the order of the polygons? Because polygons underneath a polygon are for example hidden.

    – kalakaru
    Mar 27 at 13:31






  • 2





    @kalakaru Yes. In Symbology Tab there is a small text saying "Layer Rendering" at the bottom. Open it and now check the box next to "Control feature rendering order". Now you can click the box with the "AZ and Arrow" Symbol and choose an attribute that controls the rendering order.

    – MrXsquared
    Mar 27 at 13:34







  • 2





    if you set your fill as semi-transparant, the polygons underneath will show up

    – PieterB
    Mar 27 at 13:36












  • @PieterB that solved my problem. Thank you!! :)

    – kalakaru
    Mar 27 at 13:38











  • kalakaru, please accept the answer if it solved your problem, so that other participants understand that a similar question can solve their problem.

    – Cyril
    Mar 27 at 17:31


















1














It look like you have a line layer delimiting polygons otherwise the whole area would appear selected (you can check the layer geometry with a right click on the layer name then select property then looking for the information tab and checking the Geometry)



If that's the case you may have information in the attribute table that may let you select whole boundary if not you will have to manually select all the line that limit your area.



If you give us more detail (like how this layer was made or what's in the attribute table) you will get more helpful answers






share|improve this answer

























    Your Answer








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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    3














    This is due to the drawing order of your polygon. The other ones are probably drawn after the selected one. The last drawn is rendered on top of the others. That's why the border of the selected one is partialy hidden






    share|improve this answer























    • Is there a way I can change the order of the polygons? Because polygons underneath a polygon are for example hidden.

      – kalakaru
      Mar 27 at 13:31






    • 2





      @kalakaru Yes. In Symbology Tab there is a small text saying "Layer Rendering" at the bottom. Open it and now check the box next to "Control feature rendering order". Now you can click the box with the "AZ and Arrow" Symbol and choose an attribute that controls the rendering order.

      – MrXsquared
      Mar 27 at 13:34







    • 2





      if you set your fill as semi-transparant, the polygons underneath will show up

      – PieterB
      Mar 27 at 13:36












    • @PieterB that solved my problem. Thank you!! :)

      – kalakaru
      Mar 27 at 13:38











    • kalakaru, please accept the answer if it solved your problem, so that other participants understand that a similar question can solve their problem.

      – Cyril
      Mar 27 at 17:31















    3














    This is due to the drawing order of your polygon. The other ones are probably drawn after the selected one. The last drawn is rendered on top of the others. That's why the border of the selected one is partialy hidden






    share|improve this answer























    • Is there a way I can change the order of the polygons? Because polygons underneath a polygon are for example hidden.

      – kalakaru
      Mar 27 at 13:31






    • 2





      @kalakaru Yes. In Symbology Tab there is a small text saying "Layer Rendering" at the bottom. Open it and now check the box next to "Control feature rendering order". Now you can click the box with the "AZ and Arrow" Symbol and choose an attribute that controls the rendering order.

      – MrXsquared
      Mar 27 at 13:34







    • 2





      if you set your fill as semi-transparant, the polygons underneath will show up

      – PieterB
      Mar 27 at 13:36












    • @PieterB that solved my problem. Thank you!! :)

      – kalakaru
      Mar 27 at 13:38











    • kalakaru, please accept the answer if it solved your problem, so that other participants understand that a similar question can solve their problem.

      – Cyril
      Mar 27 at 17:31













    3












    3








    3







    This is due to the drawing order of your polygon. The other ones are probably drawn after the selected one. The last drawn is rendered on top of the others. That's why the border of the selected one is partialy hidden






    share|improve this answer













    This is due to the drawing order of your polygon. The other ones are probably drawn after the selected one. The last drawn is rendered on top of the others. That's why the border of the selected one is partialy hidden







    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Mar 27 at 13:28









    PieterBPieterB

    2,7701128




    2,7701128












    • Is there a way I can change the order of the polygons? Because polygons underneath a polygon are for example hidden.

      – kalakaru
      Mar 27 at 13:31






    • 2





      @kalakaru Yes. In Symbology Tab there is a small text saying "Layer Rendering" at the bottom. Open it and now check the box next to "Control feature rendering order". Now you can click the box with the "AZ and Arrow" Symbol and choose an attribute that controls the rendering order.

      – MrXsquared
      Mar 27 at 13:34







    • 2





      if you set your fill as semi-transparant, the polygons underneath will show up

      – PieterB
      Mar 27 at 13:36












    • @PieterB that solved my problem. Thank you!! :)

      – kalakaru
      Mar 27 at 13:38











    • kalakaru, please accept the answer if it solved your problem, so that other participants understand that a similar question can solve their problem.

      – Cyril
      Mar 27 at 17:31

















    • Is there a way I can change the order of the polygons? Because polygons underneath a polygon are for example hidden.

      – kalakaru
      Mar 27 at 13:31






    • 2





      @kalakaru Yes. In Symbology Tab there is a small text saying "Layer Rendering" at the bottom. Open it and now check the box next to "Control feature rendering order". Now you can click the box with the "AZ and Arrow" Symbol and choose an attribute that controls the rendering order.

      – MrXsquared
      Mar 27 at 13:34







    • 2





      if you set your fill as semi-transparant, the polygons underneath will show up

      – PieterB
      Mar 27 at 13:36












    • @PieterB that solved my problem. Thank you!! :)

      – kalakaru
      Mar 27 at 13:38











    • kalakaru, please accept the answer if it solved your problem, so that other participants understand that a similar question can solve their problem.

      – Cyril
      Mar 27 at 17:31
















    Is there a way I can change the order of the polygons? Because polygons underneath a polygon are for example hidden.

    – kalakaru
    Mar 27 at 13:31





    Is there a way I can change the order of the polygons? Because polygons underneath a polygon are for example hidden.

    – kalakaru
    Mar 27 at 13:31




    2




    2





    @kalakaru Yes. In Symbology Tab there is a small text saying "Layer Rendering" at the bottom. Open it and now check the box next to "Control feature rendering order". Now you can click the box with the "AZ and Arrow" Symbol and choose an attribute that controls the rendering order.

    – MrXsquared
    Mar 27 at 13:34






    @kalakaru Yes. In Symbology Tab there is a small text saying "Layer Rendering" at the bottom. Open it and now check the box next to "Control feature rendering order". Now you can click the box with the "AZ and Arrow" Symbol and choose an attribute that controls the rendering order.

    – MrXsquared
    Mar 27 at 13:34





    2




    2





    if you set your fill as semi-transparant, the polygons underneath will show up

    – PieterB
    Mar 27 at 13:36






    if you set your fill as semi-transparant, the polygons underneath will show up

    – PieterB
    Mar 27 at 13:36














    @PieterB that solved my problem. Thank you!! :)

    – kalakaru
    Mar 27 at 13:38





    @PieterB that solved my problem. Thank you!! :)

    – kalakaru
    Mar 27 at 13:38













    kalakaru, please accept the answer if it solved your problem, so that other participants understand that a similar question can solve their problem.

    – Cyril
    Mar 27 at 17:31





    kalakaru, please accept the answer if it solved your problem, so that other participants understand that a similar question can solve their problem.

    – Cyril
    Mar 27 at 17:31













    1














    It look like you have a line layer delimiting polygons otherwise the whole area would appear selected (you can check the layer geometry with a right click on the layer name then select property then looking for the information tab and checking the Geometry)



    If that's the case you may have information in the attribute table that may let you select whole boundary if not you will have to manually select all the line that limit your area.



    If you give us more detail (like how this layer was made or what's in the attribute table) you will get more helpful answers






    share|improve this answer





























      1














      It look like you have a line layer delimiting polygons otherwise the whole area would appear selected (you can check the layer geometry with a right click on the layer name then select property then looking for the information tab and checking the Geometry)



      If that's the case you may have information in the attribute table that may let you select whole boundary if not you will have to manually select all the line that limit your area.



      If you give us more detail (like how this layer was made or what's in the attribute table) you will get more helpful answers






      share|improve this answer



























        1












        1








        1







        It look like you have a line layer delimiting polygons otherwise the whole area would appear selected (you can check the layer geometry with a right click on the layer name then select property then looking for the information tab and checking the Geometry)



        If that's the case you may have information in the attribute table that may let you select whole boundary if not you will have to manually select all the line that limit your area.



        If you give us more detail (like how this layer was made or what's in the attribute table) you will get more helpful answers






        share|improve this answer















        It look like you have a line layer delimiting polygons otherwise the whole area would appear selected (you can check the layer geometry with a right click on the layer name then select property then looking for the information tab and checking the Geometry)



        If that's the case you may have information in the attribute table that may let you select whole boundary if not you will have to manually select all the line that limit your area.



        If you give us more detail (like how this layer was made or what's in the attribute table) you will get more helpful answers







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Mar 27 at 13:33

























        answered Mar 27 at 13:26









        J.RJ.R

        3,601222




        3,601222



























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