How to convert MultiLineStringZ object to MultilineString object?
I have CAD-data which I transformed to shapefiles. Currently after the transformation the objects still have a Z value which is useless to me.
My question is: How do I convert a MultiLineStringZ-object to a MultiLineString-object?
qgis postgis postgresql
edited 5 hours ago
Erik
2,812118
asked 5 hours ago
şener alkan
61
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I have CAD-data which I transformed to shapefiles. Currently after the transformation the objects still have a Z value which is useless to me.
My question is: How do I convert a MultiLineStringZ-object to a MultiLineString-object?
qgis postgis postgresql
edited 5 hours ago
Erik
2,812118
asked 5 hours ago
şener alkan
61
New contributor
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I have CAD-data which I transformed to shapefiles. Currently after the transformation the objects still have a Z value which is useless to me.
My question is: How do I convert a MultiLineStringZ-object to a MultiLineString-object?
qgis postgis postgresql
edited 5 hours ago
Erik
2,812118
asked 5 hours ago
şener alkan
61
New contributor
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have CAD-data which I transformed to shapefiles. Currently after the transformation the objects still have a Z value which is useless to me.
My question is: How do I convert a MultiLineStringZ-object to a MultiLineString-object?
qgis postgis postgresql
qgis postgis postgresql
edited 5 hours ago
Erik
2,812118
asked 5 hours ago
şener alkan
61
New contributor
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
Erik
2,812118
asked 5 hours ago
şener alkan
61
New contributor
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
Erik
2,812118
edited 5 hours ago
Erik
2,812118
edited 5 hours ago
Erik
2,812118
2,812118
asked 5 hours ago
şener alkan
61
New contributor
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 hours ago
şener alkan
61
asked 5 hours ago
şener alkan
61
61
New contributor
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
şener alkan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
There is a ST_Force2d function in PostGIS which does the job. A new table should be created with 2D geometry and use an insert statement with select to populate the new table:
insert into new_table (geom, col1, col2, col3)
select ST_Force2D(geom), col1, col2, col2 from old_table;
You should substitute your real column names into col1, col2, ...
You can query the table structure with in psql
d old_table
or you can use pgadmin with GUI.
answered 5 hours ago
Zoltan
2,997716
It's working, Thanks for your answer
– şener alkan
4 hours ago
Could you accept my answer clicking on the up arrow beside my answer?
– Zoltan
2 hours ago
add a comment |
Run the drop z values algorithm from the QGIS processing toolbox
edited 4 hours ago
Erik
2,812118
answered 5 hours ago
ndawson
18k22640
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
There is a ST_Force2d function in PostGIS which does the job. A new table should be created with 2D geometry and use an insert statement with select to populate the new table:
insert into new_table (geom, col1, col2, col3)
select ST_Force2D(geom), col1, col2, col2 from old_table;
You should substitute your real column names into col1, col2, ...
You can query the table structure with in psql
d old_table
or you can use pgadmin with GUI.
answered 5 hours ago
Zoltan
2,997716
It's working, Thanks for your answer
– şener alkan
4 hours ago
Could you accept my answer clicking on the up arrow beside my answer?
– Zoltan
2 hours ago
add a comment |
There is a ST_Force2d function in PostGIS which does the job. A new table should be created with 2D geometry and use an insert statement with select to populate the new table:
insert into new_table (geom, col1, col2, col3)
select ST_Force2D(geom), col1, col2, col2 from old_table;
You should substitute your real column names into col1, col2, ...
You can query the table structure with in psql
d old_table
or you can use pgadmin with GUI.
answered 5 hours ago
Zoltan
2,997716
It's working, Thanks for your answer
– şener alkan
4 hours ago
Could you accept my answer clicking on the up arrow beside my answer?
– Zoltan
2 hours ago
add a comment |
There is a ST_Force2d function in PostGIS which does the job. A new table should be created with 2D geometry and use an insert statement with select to populate the new table:
insert into new_table (geom, col1, col2, col3)
select ST_Force2D(geom), col1, col2, col2 from old_table;
You should substitute your real column names into col1, col2, ...
You can query the table structure with in psql
d old_table
or you can use pgadmin with GUI.
answered 5 hours ago
Zoltan
2,997716
There is a ST_Force2d function in PostGIS which does the job. A new table should be created with 2D geometry and use an insert statement with select to populate the new table:
insert into new_table (geom, col1, col2, col3)
select ST_Force2D(geom), col1, col2, col2 from old_table;
You should substitute your real column names into col1, col2, ...
You can query the table structure with in psql
d old_table
or you can use pgadmin with GUI.
answered 5 hours ago
Zoltan
2,997716
answered 5 hours ago
Zoltan
2,997716
answered 5 hours ago
Zoltan
2,997716
answered 5 hours ago
Zoltan
2,997716
2,997716
It's working, Thanks for your answer
– şener alkan
4 hours ago
Could you accept my answer clicking on the up arrow beside my answer?
– Zoltan
2 hours ago
add a comment |
It's working, Thanks for your answer
– şener alkan
4 hours ago
Could you accept my answer clicking on the up arrow beside my answer?
– Zoltan
2 hours ago
It's working, Thanks for your answer
– şener alkan
4 hours ago
It's working, Thanks for your answer
– şener alkan
4 hours ago
Could you accept my answer clicking on the up arrow beside my answer?
– Zoltan
2 hours ago
Could you accept my answer clicking on the up arrow beside my answer?
– Zoltan
2 hours ago
add a comment |
Run the drop z values algorithm from the QGIS processing toolbox
edited 4 hours ago
Erik
2,812118
answered 5 hours ago
ndawson
18k22640
add a comment |
Run the drop z values algorithm from the QGIS processing toolbox
edited 4 hours ago
Erik
2,812118
answered 5 hours ago
ndawson
18k22640
add a comment |
Run the drop z values algorithm from the QGIS processing toolbox
edited 4 hours ago
Erik
2,812118
answered 5 hours ago
ndawson
18k22640
Run the drop z values algorithm from the QGIS processing toolbox
edited 4 hours ago
Erik
2,812118
answered 5 hours ago
ndawson
18k22640
edited 4 hours ago
Erik
2,812118
edited 4 hours ago
Erik
2,812118
edited 4 hours ago
Erik
2,812118
2,812118
answered 5 hours ago
ndawson
18k22640
answered 5 hours ago
ndawson
18k22640
answered 5 hours ago
ndawson
18k22640
18k22640
add a comment |
add a comment |
şener alkan is a new contributor. Be nice, and check out our Code of Conduct.
şener alkan is a new contributor. Be nice, and check out our Code of Conduct.
şener alkan is a new contributor. Be nice, and check out our Code of Conduct.
şener alkan is a new contributor. Be nice, and check out our Code of Conduct.
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