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Split polygon using another polygon in QGIS
QGIS Points in Polygon CrashesHow to sum up values within grid polygon in QGIS?Count unique features of points in polygonProblem in polygon division using the union tool from QGISCreate frequency polygon from overlapping features in another polygonHow can I split a polygon by network line in QGIS?Does QGIS cache style information?How to split a single polygon with another polygon (from a different layer) with QgisSplit polygons into equal squares using custom QGIS toolQGIS split rectangular polygon in grid
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I have two polygon layers (yellow and orange in the attached image). I am wondering if there is a way to get a count of the number of isolated areas that the orange polygon has divided the yellow polygon into using QGIS? I have tried using various vector processing tools in QGIS but have yet to find one that will produce the desired output. I am using QGIS version 3.4.
qgis vector
add a comment |
I have two polygon layers (yellow and orange in the attached image). I am wondering if there is a way to get a count of the number of isolated areas that the orange polygon has divided the yellow polygon into using QGIS? I have tried using various vector processing tools in QGIS but have yet to find one that will produce the desired output. I am using QGIS version 3.4.
qgis vector
add a comment |
I have two polygon layers (yellow and orange in the attached image). I am wondering if there is a way to get a count of the number of isolated areas that the orange polygon has divided the yellow polygon into using QGIS? I have tried using various vector processing tools in QGIS but have yet to find one that will produce the desired output. I am using QGIS version 3.4.
qgis vector
I have two polygon layers (yellow and orange in the attached image). I am wondering if there is a way to get a count of the number of isolated areas that the orange polygon has divided the yellow polygon into using QGIS? I have tried using various vector processing tools in QGIS but have yet to find one that will produce the desired output. I am using QGIS version 3.4.
qgis vector
qgis vector
asked 8 hours ago
EvanEvan
475
475
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
It's simple
Step One - "Vector> Geoprocessing> Difference";
Step Two - “Analysis Tools> Split Composite Objects” (This step is necessary in order to convert a multipolygon to a polygon, otherwise the result may not be accurate);
the third step "select a layer in the layers panel with the name" Single_parts ", click on the right mouse button and in the pop-up window set the checkbox - Show number of objects" and this is your result ...
add a comment |
The easy way
There is a very easy way to do so:
You can use Vector
-> Geoprocessing Tools
-> Clip
.
Input Layer
is the underlying, greenish one.
Overlay Layer
is the clipping, orange one.
This will create a new layer (and if you leave the Clipped
name empty, it will default to a temporary, disposable layer, so you don't pollute your hard drive).
The number of individual features of the clipped layer is the number you are looking for.
The flexible way
You can avoid doing the manual count (useful if you have a large number of features) by using:
Toolbox
(the "gear" icon) -> Join attributes by location (summary)
and inputting something like in the following screenshot:
Please note that, depending on the options you select, you can yield many more useful insights about the newly clipped polygons ;)
2
This seems to only creates an output layer that is the same as the overlay layer (orange one).
– Evan
8 hours ago
yes, because in your case the orange layer seems to only cut one contiguous feature of the yellow one.
– RafDouglas
8 hours ago
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
It's simple
Step One - "Vector> Geoprocessing> Difference";
Step Two - “Analysis Tools> Split Composite Objects” (This step is necessary in order to convert a multipolygon to a polygon, otherwise the result may not be accurate);
the third step "select a layer in the layers panel with the name" Single_parts ", click on the right mouse button and in the pop-up window set the checkbox - Show number of objects" and this is your result ...
add a comment |
It's simple
Step One - "Vector> Geoprocessing> Difference";
Step Two - “Analysis Tools> Split Composite Objects” (This step is necessary in order to convert a multipolygon to a polygon, otherwise the result may not be accurate);
the third step "select a layer in the layers panel with the name" Single_parts ", click on the right mouse button and in the pop-up window set the checkbox - Show number of objects" and this is your result ...
add a comment |
It's simple
Step One - "Vector> Geoprocessing> Difference";
Step Two - “Analysis Tools> Split Composite Objects” (This step is necessary in order to convert a multipolygon to a polygon, otherwise the result may not be accurate);
the third step "select a layer in the layers panel with the name" Single_parts ", click on the right mouse button and in the pop-up window set the checkbox - Show number of objects" and this is your result ...
It's simple
Step One - "Vector> Geoprocessing> Difference";
Step Two - “Analysis Tools> Split Composite Objects” (This step is necessary in order to convert a multipolygon to a polygon, otherwise the result may not be accurate);
the third step "select a layer in the layers panel with the name" Single_parts ", click on the right mouse button and in the pop-up window set the checkbox - Show number of objects" and this is your result ...
answered 7 hours ago
CyrilCyril
1,3311418
1,3311418
add a comment |
add a comment |
The easy way
There is a very easy way to do so:
You can use Vector
-> Geoprocessing Tools
-> Clip
.
Input Layer
is the underlying, greenish one.
Overlay Layer
is the clipping, orange one.
This will create a new layer (and if you leave the Clipped
name empty, it will default to a temporary, disposable layer, so you don't pollute your hard drive).
The number of individual features of the clipped layer is the number you are looking for.
The flexible way
You can avoid doing the manual count (useful if you have a large number of features) by using:
Toolbox
(the "gear" icon) -> Join attributes by location (summary)
and inputting something like in the following screenshot:
Please note that, depending on the options you select, you can yield many more useful insights about the newly clipped polygons ;)
2
This seems to only creates an output layer that is the same as the overlay layer (orange one).
– Evan
8 hours ago
yes, because in your case the orange layer seems to only cut one contiguous feature of the yellow one.
– RafDouglas
8 hours ago
add a comment |
The easy way
There is a very easy way to do so:
You can use Vector
-> Geoprocessing Tools
-> Clip
.
Input Layer
is the underlying, greenish one.
Overlay Layer
is the clipping, orange one.
This will create a new layer (and if you leave the Clipped
name empty, it will default to a temporary, disposable layer, so you don't pollute your hard drive).
The number of individual features of the clipped layer is the number you are looking for.
The flexible way
You can avoid doing the manual count (useful if you have a large number of features) by using:
Toolbox
(the "gear" icon) -> Join attributes by location (summary)
and inputting something like in the following screenshot:
Please note that, depending on the options you select, you can yield many more useful insights about the newly clipped polygons ;)
2
This seems to only creates an output layer that is the same as the overlay layer (orange one).
– Evan
8 hours ago
yes, because in your case the orange layer seems to only cut one contiguous feature of the yellow one.
– RafDouglas
8 hours ago
add a comment |
The easy way
There is a very easy way to do so:
You can use Vector
-> Geoprocessing Tools
-> Clip
.
Input Layer
is the underlying, greenish one.
Overlay Layer
is the clipping, orange one.
This will create a new layer (and if you leave the Clipped
name empty, it will default to a temporary, disposable layer, so you don't pollute your hard drive).
The number of individual features of the clipped layer is the number you are looking for.
The flexible way
You can avoid doing the manual count (useful if you have a large number of features) by using:
Toolbox
(the "gear" icon) -> Join attributes by location (summary)
and inputting something like in the following screenshot:
Please note that, depending on the options you select, you can yield many more useful insights about the newly clipped polygons ;)
The easy way
There is a very easy way to do so:
You can use Vector
-> Geoprocessing Tools
-> Clip
.
Input Layer
is the underlying, greenish one.
Overlay Layer
is the clipping, orange one.
This will create a new layer (and if you leave the Clipped
name empty, it will default to a temporary, disposable layer, so you don't pollute your hard drive).
The number of individual features of the clipped layer is the number you are looking for.
The flexible way
You can avoid doing the manual count (useful if you have a large number of features) by using:
Toolbox
(the "gear" icon) -> Join attributes by location (summary)
and inputting something like in the following screenshot:
Please note that, depending on the options you select, you can yield many more useful insights about the newly clipped polygons ;)
edited 8 hours ago
answered 8 hours ago
RafDouglasRafDouglas
1,00817
1,00817
2
This seems to only creates an output layer that is the same as the overlay layer (orange one).
– Evan
8 hours ago
yes, because in your case the orange layer seems to only cut one contiguous feature of the yellow one.
– RafDouglas
8 hours ago
add a comment |
2
This seems to only creates an output layer that is the same as the overlay layer (orange one).
– Evan
8 hours ago
yes, because in your case the orange layer seems to only cut one contiguous feature of the yellow one.
– RafDouglas
8 hours ago
2
2
This seems to only creates an output layer that is the same as the overlay layer (orange one).
– Evan
8 hours ago
This seems to only creates an output layer that is the same as the overlay layer (orange one).
– Evan
8 hours ago
yes, because in your case the orange layer seems to only cut one contiguous feature of the yellow one.
– RafDouglas
8 hours ago
yes, because in your case the orange layer seems to only cut one contiguous feature of the yellow one.
– RafDouglas
8 hours ago
add a comment |
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