Setting dashed stroke style when layers have features with sharing borders in QGIS?
Layers like municipalities, countries, ... have features sharing the border of their neighbours: they share the same vertices (except for the features at the edges off course).
I have a municipality layer, which I set with a dashed stroke style.
However, for adjacent features, the borders are displayed as a solid line (see picture)
How can I display all borders with a dashed stroke style?
Now it seems to overlap.
qgis symbology qgis-3
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
asked Jan 3 at 16:06
Koen VerKoen Ver
664
add a comment |
Layers like municipalities, countries, ... have features sharing the border of their neighbours: they share the same vertices (except for the features at the edges off course).
I have a municipality layer, which I set with a dashed stroke style.
However, for adjacent features, the borders are displayed as a solid line (see picture)
How can I display all borders with a dashed stroke style?
Now it seems to overlap.
qgis symbology qgis-3
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
asked Jan 3 at 16:06
Koen VerKoen Ver
664
Possible answers can be found at gis.stackexchange.com/questions/171182/…
– Vadym
Jan 3 at 16:43
I guess you're right
– Koen Ver
Jan 4 at 10:20
add a comment |
Layers like municipalities, countries, ... have features sharing the border of their neighbours: they share the same vertices (except for the features at the edges off course).
I have a municipality layer, which I set with a dashed stroke style.
However, for adjacent features, the borders are displayed as a solid line (see picture)
How can I display all borders with a dashed stroke style?
Now it seems to overlap.
qgis symbology qgis-3
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
asked Jan 3 at 16:06
Koen VerKoen Ver
664
Layers like municipalities, countries, ... have features sharing the border of their neighbours: they share the same vertices (except for the features at the edges off course).
I have a municipality layer, which I set with a dashed stroke style.
However, for adjacent features, the borders are displayed as a solid line (see picture)
How can I display all borders with a dashed stroke style?
Now it seems to overlap.
qgis symbology qgis-3
qgis symbology qgis-3
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
asked Jan 3 at 16:06
Koen VerKoen Ver
664
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
asked Jan 3 at 16:06
Koen VerKoen Ver
664
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
edited Jan 8 at 23:37
PolyGeo♦
53.3k1779238
53.3k1779238
asked Jan 3 at 16:06
Koen VerKoen Ver
664
asked Jan 3 at 16:06
Koen VerKoen Ver
664
asked Jan 3 at 16:06
Koen VerKoen Ver
664
664
Possible answers can be found at gis.stackexchange.com/questions/171182/…
– Vadym
Jan 3 at 16:43
I guess you're right
– Koen Ver
Jan 4 at 10:20
add a comment |
Possible answers can be found at gis.stackexchange.com/questions/171182/…
– Vadym
Jan 3 at 16:43
I guess you're right
– Koen Ver
Jan 4 at 10:20
Possible answers can be found at gis.stackexchange.com/questions/171182/…
– Vadym
Jan 3 at 16:43
Possible answers can be found at gis.stackexchange.com/questions/171182/…
– Vadym
Jan 3 at 16:43
I guess you're right
– Koen Ver
Jan 4 at 10:20
I guess you're right
– Koen Ver
Jan 4 at 10:20
add a comment |
2 Answers
2
active
oldest
votes
The "solid" border is actually two dashed lines. The dash patterns aren't aligned, so the dashes of each line cover the spaces of the other, creating the appearance of a solid line.
You can prevent the two borders from overlapping by choosing the option "Draw line only inside polygon."
This is the simplest method, but it has two downsides:
- The dash patterns of shared borders are still mis-aligned.
- The line width is cut in half around the outsides of the area, while the interior borders still appear full width.
To truly fix the issue, convert your polygons to lines.
- Run
Polygons to linesalgorithm to convert polygons to lines
Run
Dissolvealgorithm to remove overlapping line segments.
Note: this algorithm creates a temporary layer by default, which will be deleted when you close the project. Be sure to save the temporary layer by right clicking on the layer name and choosing the option "make permanent."
Apply the same style to the dissolved lines layer as you used for the polygon borders.
- (Optional) If you want filled polygons, set the border stroke style to "No pen" for the polygon layer. Put the line layer above the polygon layer.
answered Jan 3 at 16:39
cskcsk
6,995733
add a comment |
This is not an ideal solution (and I hope someone answers with a better one) but as an interim work-around you could try to following:
- Convert the polygons to lines (Polygons to Lines)
- Explode the lines features into segments (Explode Lines)
- Delete duplicate lines (advice on that here), these are the ones where polygons share boundaries
- Symbolise the resulting individual lines as dashed and use the original polygons as the fill
Not great I know but hope it helps.
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
add a comment |
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2 Answers
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The "solid" border is actually two dashed lines. The dash patterns aren't aligned, so the dashes of each line cover the spaces of the other, creating the appearance of a solid line.
You can prevent the two borders from overlapping by choosing the option "Draw line only inside polygon."
This is the simplest method, but it has two downsides:
- The dash patterns of shared borders are still mis-aligned.
- The line width is cut in half around the outsides of the area, while the interior borders still appear full width.
To truly fix the issue, convert your polygons to lines.
- Run
Polygons to linesalgorithm to convert polygons to lines
Run
Dissolvealgorithm to remove overlapping line segments.
Note: this algorithm creates a temporary layer by default, which will be deleted when you close the project. Be sure to save the temporary layer by right clicking on the layer name and choosing the option "make permanent."
Apply the same style to the dissolved lines layer as you used for the polygon borders.
- (Optional) If you want filled polygons, set the border stroke style to "No pen" for the polygon layer. Put the line layer above the polygon layer.
answered Jan 3 at 16:39
cskcsk
6,995733
add a comment |
The "solid" border is actually two dashed lines. The dash patterns aren't aligned, so the dashes of each line cover the spaces of the other, creating the appearance of a solid line.
You can prevent the two borders from overlapping by choosing the option "Draw line only inside polygon."
This is the simplest method, but it has two downsides:
- The dash patterns of shared borders are still mis-aligned.
- The line width is cut in half around the outsides of the area, while the interior borders still appear full width.
To truly fix the issue, convert your polygons to lines.
- Run
Polygons to linesalgorithm to convert polygons to lines
Run
Dissolvealgorithm to remove overlapping line segments.
Note: this algorithm creates a temporary layer by default, which will be deleted when you close the project. Be sure to save the temporary layer by right clicking on the layer name and choosing the option "make permanent."
Apply the same style to the dissolved lines layer as you used for the polygon borders.
- (Optional) If you want filled polygons, set the border stroke style to "No pen" for the polygon layer. Put the line layer above the polygon layer.
answered Jan 3 at 16:39
cskcsk
6,995733
add a comment |
The "solid" border is actually two dashed lines. The dash patterns aren't aligned, so the dashes of each line cover the spaces of the other, creating the appearance of a solid line.
You can prevent the two borders from overlapping by choosing the option "Draw line only inside polygon."
This is the simplest method, but it has two downsides:
- The dash patterns of shared borders are still mis-aligned.
- The line width is cut in half around the outsides of the area, while the interior borders still appear full width.
To truly fix the issue, convert your polygons to lines.
- Run
Polygons to linesalgorithm to convert polygons to lines
Run
Dissolvealgorithm to remove overlapping line segments.
Note: this algorithm creates a temporary layer by default, which will be deleted when you close the project. Be sure to save the temporary layer by right clicking on the layer name and choosing the option "make permanent."
Apply the same style to the dissolved lines layer as you used for the polygon borders.
- (Optional) If you want filled polygons, set the border stroke style to "No pen" for the polygon layer. Put the line layer above the polygon layer.
answered Jan 3 at 16:39
cskcsk
6,995733
The "solid" border is actually two dashed lines. The dash patterns aren't aligned, so the dashes of each line cover the spaces of the other, creating the appearance of a solid line.
You can prevent the two borders from overlapping by choosing the option "Draw line only inside polygon."
This is the simplest method, but it has two downsides:
- The dash patterns of shared borders are still mis-aligned.
- The line width is cut in half around the outsides of the area, while the interior borders still appear full width.
To truly fix the issue, convert your polygons to lines.
- Run
Polygons to linesalgorithm to convert polygons to lines
Run
Dissolvealgorithm to remove overlapping line segments.
Note: this algorithm creates a temporary layer by default, which will be deleted when you close the project. Be sure to save the temporary layer by right clicking on the layer name and choosing the option "make permanent."
Apply the same style to the dissolved lines layer as you used for the polygon borders.
- (Optional) If you want filled polygons, set the border stroke style to "No pen" for the polygon layer. Put the line layer above the polygon layer.
answered Jan 3 at 16:39
cskcsk
6,995733
answered Jan 3 at 16:39
cskcsk
6,995733
answered Jan 3 at 16:39
cskcsk
6,995733
answered Jan 3 at 16:39
cskcsk
6,995733
6,995733
add a comment |
add a comment |
This is not an ideal solution (and I hope someone answers with a better one) but as an interim work-around you could try to following:
- Convert the polygons to lines (Polygons to Lines)
- Explode the lines features into segments (Explode Lines)
- Delete duplicate lines (advice on that here), these are the ones where polygons share boundaries
- Symbolise the resulting individual lines as dashed and use the original polygons as the fill
Not great I know but hope it helps.
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
add a comment |
This is not an ideal solution (and I hope someone answers with a better one) but as an interim work-around you could try to following:
- Convert the polygons to lines (Polygons to Lines)
- Explode the lines features into segments (Explode Lines)
- Delete duplicate lines (advice on that here), these are the ones where polygons share boundaries
- Symbolise the resulting individual lines as dashed and use the original polygons as the fill
Not great I know but hope it helps.
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
add a comment |
This is not an ideal solution (and I hope someone answers with a better one) but as an interim work-around you could try to following:
- Convert the polygons to lines (Polygons to Lines)
- Explode the lines features into segments (Explode Lines)
- Delete duplicate lines (advice on that here), these are the ones where polygons share boundaries
- Symbolise the resulting individual lines as dashed and use the original polygons as the fill
Not great I know but hope it helps.
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
This is not an ideal solution (and I hope someone answers with a better one) but as an interim work-around you could try to following:
- Convert the polygons to lines (Polygons to Lines)
- Explode the lines features into segments (Explode Lines)
- Delete duplicate lines (advice on that here), these are the ones where polygons share boundaries
- Symbolise the resulting individual lines as dashed and use the original polygons as the fill
Not great I know but hope it helps.
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
answered Jan 3 at 16:47
TeddyTedTedTeddyTedTed
54919
54919
add a comment |
add a comment |
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Possible answers can be found at gis.stackexchange.com/questions/171182/…
– Vadym
Jan 3 at 16:43
I guess you're right
– Koen Ver
Jan 4 at 10:20