Simplify polygon QGIS [duplicate]
This question already has an answer here:
Smoothing/generalizing polygon in QGIS?
5 answers
I have a layer of polygons that are pretty detailed.
I need these to be more simple.
Is there a way to make this into a polygon with just the outer boundries?
qgis polygon
edited Dec 12 '18 at 18:14
Vince
14.4k32647
asked Dec 12 '18 at 16:12
Tobbe
313210
marked as duplicate by Fezter♦ Dec 13 '18 at 0:53
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
This question already has an answer here:
Smoothing/generalizing polygon in QGIS?
5 answers
I have a layer of polygons that are pretty detailed.
I need these to be more simple.
Is there a way to make this into a polygon with just the outer boundries?
qgis polygon
edited Dec 12 '18 at 18:14
Vince
14.4k32647
asked Dec 12 '18 at 16:12
Tobbe
313210
marked as duplicate by Fezter♦ Dec 13 '18 at 0:53
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
This question already has an answer here:
Smoothing/generalizing polygon in QGIS?
5 answers
I have a layer of polygons that are pretty detailed.
I need these to be more simple.
Is there a way to make this into a polygon with just the outer boundries?
qgis polygon
edited Dec 12 '18 at 18:14
Vince
14.4k32647
asked Dec 12 '18 at 16:12
Tobbe
313210
This question already has an answer here:
Smoothing/generalizing polygon in QGIS?
5 answers
I have a layer of polygons that are pretty detailed.
I need these to be more simple.
Is there a way to make this into a polygon with just the outer boundries?
This question already has an answer here:
Smoothing/generalizing polygon in QGIS?
5 answers
qgis polygon
qgis polygon
edited Dec 12 '18 at 18:14
Vince
14.4k32647
asked Dec 12 '18 at 16:12
Tobbe
313210
edited Dec 12 '18 at 18:14
Vince
14.4k32647
asked Dec 12 '18 at 16:12
Tobbe
313210
edited Dec 12 '18 at 18:14
Vince
14.4k32647
edited Dec 12 '18 at 18:14
Vince
14.4k32647
edited Dec 12 '18 at 18:14
Vince
14.4k32647
14.4k32647
asked Dec 12 '18 at 16:12
Tobbe
313210
asked Dec 12 '18 at 16:12
Tobbe
313210
asked Dec 12 '18 at 16:12
Tobbe
313210
313210
marked as duplicate by Fezter♦ Dec 13 '18 at 0:53
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by Fezter♦ Dec 13 '18 at 0:53
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
If you're willing to lose some detail in the outer boundary, you can use the buffer tool as follows:
Measure the widest gap that you want to eliminate. Buffer the polygon by slightly more than 1/2 of that value.
Eg, if the widest gap is 1 km, buffer the polygon by 0.51 km.
Buffer the result of step one with a negative value of the same magnitude.
Eg, if the first buffer had a radius of 0.51 km, buffer it by -0.51 km.
Now you should have a polygon without the internal gaps, and with a simplified version of the original outer boundary.
answered Dec 12 '18 at 18:21
csk
6,910733
Genius!! Exactly what i wanted 😀. Thank you soo much
– Tobbe
Dec 12 '18 at 18:50
add a comment |
Couple ways of doing this:
In the Advanced Digitizing Toolbar you can use the Delete Ring option and manually remove all the gaps.
You can use the v.clean function in the Processing Toolbox which will fill in all the gaps as new polygon features, then you can use Dissolve to merge them all together. Bear in mind I haven't used v.clean before so I don't know what affect it will have on attributes.
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you're willing to lose some detail in the outer boundary, you can use the buffer tool as follows:
Measure the widest gap that you want to eliminate. Buffer the polygon by slightly more than 1/2 of that value.
Eg, if the widest gap is 1 km, buffer the polygon by 0.51 km.
Buffer the result of step one with a negative value of the same magnitude.
Eg, if the first buffer had a radius of 0.51 km, buffer it by -0.51 km.
Now you should have a polygon without the internal gaps, and with a simplified version of the original outer boundary.
answered Dec 12 '18 at 18:21
csk
6,910733
Genius!! Exactly what i wanted 😀. Thank you soo much
– Tobbe
Dec 12 '18 at 18:50
add a comment |
If you're willing to lose some detail in the outer boundary, you can use the buffer tool as follows:
Measure the widest gap that you want to eliminate. Buffer the polygon by slightly more than 1/2 of that value.
Eg, if the widest gap is 1 km, buffer the polygon by 0.51 km.
Buffer the result of step one with a negative value of the same magnitude.
Eg, if the first buffer had a radius of 0.51 km, buffer it by -0.51 km.
Now you should have a polygon without the internal gaps, and with a simplified version of the original outer boundary.
answered Dec 12 '18 at 18:21
csk
6,910733
Genius!! Exactly what i wanted 😀. Thank you soo much
– Tobbe
Dec 12 '18 at 18:50
add a comment |
If you're willing to lose some detail in the outer boundary, you can use the buffer tool as follows:
Measure the widest gap that you want to eliminate. Buffer the polygon by slightly more than 1/2 of that value.
Eg, if the widest gap is 1 km, buffer the polygon by 0.51 km.
Buffer the result of step one with a negative value of the same magnitude.
Eg, if the first buffer had a radius of 0.51 km, buffer it by -0.51 km.
Now you should have a polygon without the internal gaps, and with a simplified version of the original outer boundary.
answered Dec 12 '18 at 18:21
csk
6,910733
If you're willing to lose some detail in the outer boundary, you can use the buffer tool as follows:
Measure the widest gap that you want to eliminate. Buffer the polygon by slightly more than 1/2 of that value.
Eg, if the widest gap is 1 km, buffer the polygon by 0.51 km.
Buffer the result of step one with a negative value of the same magnitude.
Eg, if the first buffer had a radius of 0.51 km, buffer it by -0.51 km.
Now you should have a polygon without the internal gaps, and with a simplified version of the original outer boundary.
answered Dec 12 '18 at 18:21
csk
6,910733
answered Dec 12 '18 at 18:21
csk
6,910733
answered Dec 12 '18 at 18:21
csk
6,910733
answered Dec 12 '18 at 18:21
csk
6,910733
6,910733
Genius!! Exactly what i wanted 😀. Thank you soo much
– Tobbe
Dec 12 '18 at 18:50
add a comment |
Genius!! Exactly what i wanted 😀. Thank you soo much
– Tobbe
Dec 12 '18 at 18:50
Genius!! Exactly what i wanted 😀. Thank you soo much
– Tobbe
Dec 12 '18 at 18:50
Genius!! Exactly what i wanted 😀. Thank you soo much
– Tobbe
Dec 12 '18 at 18:50
add a comment |
Couple ways of doing this:
In the Advanced Digitizing Toolbar you can use the Delete Ring option and manually remove all the gaps.
You can use the v.clean function in the Processing Toolbox which will fill in all the gaps as new polygon features, then you can use Dissolve to merge them all together. Bear in mind I haven't used v.clean before so I don't know what affect it will have on attributes.
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
add a comment |
Couple ways of doing this:
In the Advanced Digitizing Toolbar you can use the Delete Ring option and manually remove all the gaps.
You can use the v.clean function in the Processing Toolbox which will fill in all the gaps as new polygon features, then you can use Dissolve to merge them all together. Bear in mind I haven't used v.clean before so I don't know what affect it will have on attributes.
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
add a comment |
Couple ways of doing this:
In the Advanced Digitizing Toolbar you can use the Delete Ring option and manually remove all the gaps.
You can use the v.clean function in the Processing Toolbox which will fill in all the gaps as new polygon features, then you can use Dissolve to merge them all together. Bear in mind I haven't used v.clean before so I don't know what affect it will have on attributes.
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
Couple ways of doing this:
In the Advanced Digitizing Toolbar you can use the Delete Ring option and manually remove all the gaps.
You can use the v.clean function in the Processing Toolbox which will fill in all the gaps as new polygon features, then you can use Dissolve to merge them all together. Bear in mind I haven't used v.clean before so I don't know what affect it will have on attributes.
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
answered Dec 12 '18 at 16:23
TeddyTedTed
48819
48819
add a comment |
add a comment |
