Symbolizing Isochrones in QGIS
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4
down vote
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I have generated isochrones for London based on my parameters.
However, the isochrones by definition are overlapping polygons.
I would like to show the different polygons of the isochrones using different colors.
I have tried using gradient symbology, but the desired effect is not there since the overlapping polygons are making the different colors interact with each other.
I can separate the polygons into different files and then subtract each polygon from the others so that they don't overlap.
However, since I am relatively new to QGIS, I am wondering whether there is an alternate simpler way to achieve this visual effect?
I am using QGIS 3.4.1
qgis polygon symbology visualisation isochrone
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up vote
4
down vote
favorite
I have generated isochrones for London based on my parameters.
However, the isochrones by definition are overlapping polygons.
I would like to show the different polygons of the isochrones using different colors.
I have tried using gradient symbology, but the desired effect is not there since the overlapping polygons are making the different colors interact with each other.
I can separate the polygons into different files and then subtract each polygon from the others so that they don't overlap.
However, since I am relatively new to QGIS, I am wondering whether there is an alternate simpler way to achieve this visual effect?
I am using QGIS 3.4.1
qgis polygon symbology visualisation isochrone
add a comment |
up vote
4
down vote
favorite
up vote
4
down vote
favorite
I have generated isochrones for London based on my parameters.
However, the isochrones by definition are overlapping polygons.
I would like to show the different polygons of the isochrones using different colors.
I have tried using gradient symbology, but the desired effect is not there since the overlapping polygons are making the different colors interact with each other.
I can separate the polygons into different files and then subtract each polygon from the others so that they don't overlap.
However, since I am relatively new to QGIS, I am wondering whether there is an alternate simpler way to achieve this visual effect?
I am using QGIS 3.4.1
qgis polygon symbology visualisation isochrone
I have generated isochrones for London based on my parameters.
However, the isochrones by definition are overlapping polygons.
I would like to show the different polygons of the isochrones using different colors.
I have tried using gradient symbology, but the desired effect is not there since the overlapping polygons are making the different colors interact with each other.
I can separate the polygons into different files and then subtract each polygon from the others so that they don't overlap.
However, since I am relatively new to QGIS, I am wondering whether there is an alternate simpler way to achieve this visual effect?
I am using QGIS 3.4.1
qgis polygon symbology visualisation isochrone
qgis polygon symbology visualisation isochrone
edited yesterday
asked yesterday
DotPi
3881317
3881317
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add a comment |
1 Answer
1
active
oldest
votes
up vote
3
down vote
accepted
You can use Union tool to get rid of the overlapping polygons and then add the colors you want to each polygon. Union tool is located under Vector -> Geoprocessing tools -> Union
.
But if the overlapping polygons are located in one layer, then it is better to use v.clean tool under Processing toolbox -> GRASS GIS 7 commands -> Vector -> v.clean
, and under Cleaning tool use Break
, as you can see below:
In QGIS 3.4.1 it is under GRASS -> Vector -> v.clean
and break is located under the cleaning tool:
It will remove overlapping polygons located in one polygon layer.
I am using QGIS v3.4.1 and I cannot see the parameter called 'Cleaning tool' inside the v.clean interface
– DotPi
yesterday
@DotPi I updated the answer considering QGIS 3.4.1. It is better to mention QGIS version in your question.
– ahmadhanb
yesterday
Updated Question. It works now.
– DotPi
yesterday
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
accepted
You can use Union tool to get rid of the overlapping polygons and then add the colors you want to each polygon. Union tool is located under Vector -> Geoprocessing tools -> Union
.
But if the overlapping polygons are located in one layer, then it is better to use v.clean tool under Processing toolbox -> GRASS GIS 7 commands -> Vector -> v.clean
, and under Cleaning tool use Break
, as you can see below:
In QGIS 3.4.1 it is under GRASS -> Vector -> v.clean
and break is located under the cleaning tool:
It will remove overlapping polygons located in one polygon layer.
I am using QGIS v3.4.1 and I cannot see the parameter called 'Cleaning tool' inside the v.clean interface
– DotPi
yesterday
@DotPi I updated the answer considering QGIS 3.4.1. It is better to mention QGIS version in your question.
– ahmadhanb
yesterday
Updated Question. It works now.
– DotPi
yesterday
add a comment |
up vote
3
down vote
accepted
You can use Union tool to get rid of the overlapping polygons and then add the colors you want to each polygon. Union tool is located under Vector -> Geoprocessing tools -> Union
.
But if the overlapping polygons are located in one layer, then it is better to use v.clean tool under Processing toolbox -> GRASS GIS 7 commands -> Vector -> v.clean
, and under Cleaning tool use Break
, as you can see below:
In QGIS 3.4.1 it is under GRASS -> Vector -> v.clean
and break is located under the cleaning tool:
It will remove overlapping polygons located in one polygon layer.
I am using QGIS v3.4.1 and I cannot see the parameter called 'Cleaning tool' inside the v.clean interface
– DotPi
yesterday
@DotPi I updated the answer considering QGIS 3.4.1. It is better to mention QGIS version in your question.
– ahmadhanb
yesterday
Updated Question. It works now.
– DotPi
yesterday
add a comment |
up vote
3
down vote
accepted
up vote
3
down vote
accepted
You can use Union tool to get rid of the overlapping polygons and then add the colors you want to each polygon. Union tool is located under Vector -> Geoprocessing tools -> Union
.
But if the overlapping polygons are located in one layer, then it is better to use v.clean tool under Processing toolbox -> GRASS GIS 7 commands -> Vector -> v.clean
, and under Cleaning tool use Break
, as you can see below:
In QGIS 3.4.1 it is under GRASS -> Vector -> v.clean
and break is located under the cleaning tool:
It will remove overlapping polygons located in one polygon layer.
You can use Union tool to get rid of the overlapping polygons and then add the colors you want to each polygon. Union tool is located under Vector -> Geoprocessing tools -> Union
.
But if the overlapping polygons are located in one layer, then it is better to use v.clean tool under Processing toolbox -> GRASS GIS 7 commands -> Vector -> v.clean
, and under Cleaning tool use Break
, as you can see below:
In QGIS 3.4.1 it is under GRASS -> Vector -> v.clean
and break is located under the cleaning tool:
It will remove overlapping polygons located in one polygon layer.
edited yesterday
answered yesterday
ahmadhanb
20.5k31847
20.5k31847
I am using QGIS v3.4.1 and I cannot see the parameter called 'Cleaning tool' inside the v.clean interface
– DotPi
yesterday
@DotPi I updated the answer considering QGIS 3.4.1. It is better to mention QGIS version in your question.
– ahmadhanb
yesterday
Updated Question. It works now.
– DotPi
yesterday
add a comment |
I am using QGIS v3.4.1 and I cannot see the parameter called 'Cleaning tool' inside the v.clean interface
– DotPi
yesterday
@DotPi I updated the answer considering QGIS 3.4.1. It is better to mention QGIS version in your question.
– ahmadhanb
yesterday
Updated Question. It works now.
– DotPi
yesterday
I am using QGIS v3.4.1 and I cannot see the parameter called 'Cleaning tool' inside the v.clean interface
– DotPi
yesterday
I am using QGIS v3.4.1 and I cannot see the parameter called 'Cleaning tool' inside the v.clean interface
– DotPi
yesterday
@DotPi I updated the answer considering QGIS 3.4.1. It is better to mention QGIS version in your question.
– ahmadhanb
yesterday
@DotPi I updated the answer considering QGIS 3.4.1. It is better to mention QGIS version in your question.
– ahmadhanb
yesterday
Updated Question. It works now.
– DotPi
yesterday
Updated Question. It works now.
– DotPi
yesterday
add a comment |
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