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 6 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 6 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 6 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 6 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 6 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 6 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 6 hours ago
şener alkan
61
asked 6 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 |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "79"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
şener alkan is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f307135%2fhow-to-convert-multilinestringz-object-to-multilinestring-object%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
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.
Thanks for contributing an answer to Geographic Information Systems Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f307135%2fhow-to-convert-multilinestringz-object-to-multilinestring-object%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
