How to convert several 'point' data to 'line' data?












1















I am using QGIS V3.4. I have over 1000 data points situated between a start and finish point expressing the Depth of coverage (DOC) of a pipeline. I need to identify the places along the pipeline which have a DOC lower than 0.6m to that which has coverage greater than 0.6m. the figure below identifies this, with grey data points identifying DOC greater than 0.6m and blue data points showing less than 0.6m.



enter image description here



it may look like a line (but a closer up image identifies its just multiple dots close together).



enter image description here



I have tried converting the point to line data by using the points to path tool in the toolbox. This creates however a solid line from the start point to the finish point (as seen below) and doesn't include any other points within its attribute table. Additionally, it looks like it is plotted in a straight line rather than following the placement of the points.



enter image description here



I have also tried looking for the points2one plugin, but this doesn't seem to exist on QGIS v3.4.



I need to be able to create this line but identify it as areas lower than 0.6 DOC and areas greater than DOC, highlighted with different colours. Does anyone know how to do this?






qgis qgis-plugins point line convert







share|improve this question



























    1















    I am using QGIS V3.4. I have over 1000 data points situated between a start and finish point expressing the Depth of coverage (DOC) of a pipeline. I need to identify the places along the pipeline which have a DOC lower than 0.6m to that which has coverage greater than 0.6m. the figure below identifies this, with grey data points identifying DOC greater than 0.6m and blue data points showing less than 0.6m.



    enter image description here



    it may look like a line (but a closer up image identifies its just multiple dots close together).



    enter image description here



    I have tried converting the point to line data by using the points to path tool in the toolbox. This creates however a solid line from the start point to the finish point (as seen below) and doesn't include any other points within its attribute table. Additionally, it looks like it is plotted in a straight line rather than following the placement of the points.



    enter image description here



    I have also tried looking for the points2one plugin, but this doesn't seem to exist on QGIS v3.4.



    I need to be able to create this line but identify it as areas lower than 0.6 DOC and areas greater than DOC, highlighted with different colours. Does anyone know how to do this?






    qgis qgis-plugins point line convert







    share|improve this question

























      1












      1








      1








      I am using QGIS V3.4. I have over 1000 data points situated between a start and finish point expressing the Depth of coverage (DOC) of a pipeline. I need to identify the places along the pipeline which have a DOC lower than 0.6m to that which has coverage greater than 0.6m. the figure below identifies this, with grey data points identifying DOC greater than 0.6m and blue data points showing less than 0.6m.



      enter image description here



      it may look like a line (but a closer up image identifies its just multiple dots close together).



      enter image description here



      I have tried converting the point to line data by using the points to path tool in the toolbox. This creates however a solid line from the start point to the finish point (as seen below) and doesn't include any other points within its attribute table. Additionally, it looks like it is plotted in a straight line rather than following the placement of the points.



      enter image description here



      I have also tried looking for the points2one plugin, but this doesn't seem to exist on QGIS v3.4.



      I need to be able to create this line but identify it as areas lower than 0.6 DOC and areas greater than DOC, highlighted with different colours. Does anyone know how to do this?






      qgis qgis-plugins point line convert







      share|improve this question














      I am using QGIS V3.4. I have over 1000 data points situated between a start and finish point expressing the Depth of coverage (DOC) of a pipeline. I need to identify the places along the pipeline which have a DOC lower than 0.6m to that which has coverage greater than 0.6m. the figure below identifies this, with grey data points identifying DOC greater than 0.6m and blue data points showing less than 0.6m.



      enter image description here



      it may look like a line (but a closer up image identifies its just multiple dots close together).



      enter image description here



      I have tried converting the point to line data by using the points to path tool in the toolbox. This creates however a solid line from the start point to the finish point (as seen below) and doesn't include any other points within its attribute table. Additionally, it looks like it is plotted in a straight line rather than following the placement of the points.



      enter image description here



      I have also tried looking for the points2one plugin, but this doesn't seem to exist on QGIS v3.4.



      I need to be able to create this line but identify it as areas lower than 0.6 DOC and areas greater than DOC, highlighted with different colours. Does anyone know how to do this?






      qgis qgis-plugins point line convert




      qgis qgis-plugins point line convert






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 2 hours ago









      BodhiBodhi

      15111




      15111






















          1 Answer
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          3














          in order to make Points to path tool works properly, you need to identify an order to the points so that the tool can follow the points based on the order you want:



          Here is an example:




          • Add field with integer type

          • Add numbers based on the order you want from the start until the end

          • Use point to path tool and order the line based on the field you created in the first step


          enter image description here



          Here is the output:



          enter image description here






          share|improve this answer
























          • Would Converting points tom line(s) work in the same way?

            – Bodhi
            2 hours ago











          • Points to path tool easier to use. You need just to identify the Order field without considering the Separation field which is not clear to me what this field means.

            – ahmadhanb
            2 hours ago











          • Ok so using points to path, following your instruction, an example would be to give all the points with a DOC <0.6m and id number e.g 1 - 600, then the remaining points with a DOC > 0.6 and id number 601 - 1000, and then run Points to line twice according to the id number?

            – Bodhi
            2 hours ago











          • Yes, this is what I will try to do, and I hope you will get the desired results.

            – ahmadhanb
            2 hours ago











          Your Answer








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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3














          in order to make Points to path tool works properly, you need to identify an order to the points so that the tool can follow the points based on the order you want:



          Here is an example:




          • Add field with integer type

          • Add numbers based on the order you want from the start until the end

          • Use point to path tool and order the line based on the field you created in the first step


          enter image description here



          Here is the output:



          enter image description here






          share|improve this answer
























          • Would Converting points tom line(s) work in the same way?

            – Bodhi
            2 hours ago











          • Points to path tool easier to use. You need just to identify the Order field without considering the Separation field which is not clear to me what this field means.

            – ahmadhanb
            2 hours ago











          • Ok so using points to path, following your instruction, an example would be to give all the points with a DOC <0.6m and id number e.g 1 - 600, then the remaining points with a DOC > 0.6 and id number 601 - 1000, and then run Points to line twice according to the id number?

            – Bodhi
            2 hours ago











          • Yes, this is what I will try to do, and I hope you will get the desired results.

            – ahmadhanb
            2 hours ago
















          3














          in order to make Points to path tool works properly, you need to identify an order to the points so that the tool can follow the points based on the order you want:



          Here is an example:




          • Add field with integer type

          • Add numbers based on the order you want from the start until the end

          • Use point to path tool and order the line based on the field you created in the first step


          enter image description here



          Here is the output:



          enter image description here






          share|improve this answer
























          • Would Converting points tom line(s) work in the same way?

            – Bodhi
            2 hours ago











          • Points to path tool easier to use. You need just to identify the Order field without considering the Separation field which is not clear to me what this field means.

            – ahmadhanb
            2 hours ago











          • Ok so using points to path, following your instruction, an example would be to give all the points with a DOC <0.6m and id number e.g 1 - 600, then the remaining points with a DOC > 0.6 and id number 601 - 1000, and then run Points to line twice according to the id number?

            – Bodhi
            2 hours ago











          • Yes, this is what I will try to do, and I hope you will get the desired results.

            – ahmadhanb
            2 hours ago














          3












          3








          3







          in order to make Points to path tool works properly, you need to identify an order to the points so that the tool can follow the points based on the order you want:



          Here is an example:




          • Add field with integer type

          • Add numbers based on the order you want from the start until the end

          • Use point to path tool and order the line based on the field you created in the first step


          enter image description here



          Here is the output:



          enter image description here






          share|improve this answer













          in order to make Points to path tool works properly, you need to identify an order to the points so that the tool can follow the points based on the order you want:



          Here is an example:




          • Add field with integer type

          • Add numbers based on the order you want from the start until the end

          • Use point to path tool and order the line based on the field you created in the first step


          enter image description here



          Here is the output:



          enter image description here







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 2 hours ago









          ahmadhanbahmadhanb

          22.1k31952




          22.1k31952













          • Would Converting points tom line(s) work in the same way?

            – Bodhi
            2 hours ago











          • Points to path tool easier to use. You need just to identify the Order field without considering the Separation field which is not clear to me what this field means.

            – ahmadhanb
            2 hours ago











          • Ok so using points to path, following your instruction, an example would be to give all the points with a DOC <0.6m and id number e.g 1 - 600, then the remaining points with a DOC > 0.6 and id number 601 - 1000, and then run Points to line twice according to the id number?

            – Bodhi
            2 hours ago











          • Yes, this is what I will try to do, and I hope you will get the desired results.

            – ahmadhanb
            2 hours ago



















          • Would Converting points tom line(s) work in the same way?

            – Bodhi
            2 hours ago











          • Points to path tool easier to use. You need just to identify the Order field without considering the Separation field which is not clear to me what this field means.

            – ahmadhanb
            2 hours ago











          • Ok so using points to path, following your instruction, an example would be to give all the points with a DOC <0.6m and id number e.g 1 - 600, then the remaining points with a DOC > 0.6 and id number 601 - 1000, and then run Points to line twice according to the id number?

            – Bodhi
            2 hours ago











          • Yes, this is what I will try to do, and I hope you will get the desired results.

            – ahmadhanb
            2 hours ago

















          Would Converting points tom line(s) work in the same way?

          – Bodhi
          2 hours ago





          Would Converting points tom line(s) work in the same way?

          – Bodhi
          2 hours ago













          Points to path tool easier to use. You need just to identify the Order field without considering the Separation field which is not clear to me what this field means.

          – ahmadhanb
          2 hours ago





          Points to path tool easier to use. You need just to identify the Order field without considering the Separation field which is not clear to me what this field means.

          – ahmadhanb
          2 hours ago













          Ok so using points to path, following your instruction, an example would be to give all the points with a DOC <0.6m and id number e.g 1 - 600, then the remaining points with a DOC > 0.6 and id number 601 - 1000, and then run Points to line twice according to the id number?

          – Bodhi
          2 hours ago





          Ok so using points to path, following your instruction, an example would be to give all the points with a DOC <0.6m and id number e.g 1 - 600, then the remaining points with a DOC > 0.6 and id number 601 - 1000, and then run Points to line twice according to the id number?

          – Bodhi
          2 hours ago













          Yes, this is what I will try to do, and I hope you will get the desired results.

          – ahmadhanb
          2 hours ago





          Yes, this is what I will try to do, and I hope you will get the desired results.

          – ahmadhanb
          2 hours ago


















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