Automatically (re)classify data from layer using QGIS? The 2019 Stack Overflow Developer Survey Results Are In Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Automatic pyqgis categorized renderer classificationHow to classify shapefile data into groups?Changing Data Source of Layer in QGISHow do I manually classify graduated data in QGIS?Does QGIS have the equivalent of ArcGIS's Layer (*.LYR) file?Is there an easier way to refresh a joined CSV?Changing data (attributes) in .csv of data vector layer and QGIS automatically adopting this?QGIS force saving edited data of layerIs there any way to automatically update a shp layer in QGIS?PostGIS layer QGIS 2.18.12 autorefresh at 10 secondsAutomatically update and reclassify project layer from Excel data
US Healthcare consultation for visitors
Why are there uneven bright areas in this photo of black hole?
Can each chord in a progression create its own key?
How to handle characters who are more educated than the author?
Does Parliament need to approve the new Brexit delay to 31 October 2019?
Did the UK government pay "millions and millions of dollars" to try to snag Julian Assange?
Why doesn't a hydraulic lever violate conservation of energy?
Accepted by European university, rejected by all American ones I applied to? Possible reasons?
Am I ethically obligated to go into work on an off day if the reason is sudden?
How do you keep chess fun when your opponent constantly beats you?
Do working physicists consider Newtonian mechanics to be "falsified"?
What is the role of 'For' here?
Can I visit the Trinity College (Cambridge) library and see some of their rare books
One-dimensional Japanese puzzle
Are spiders unable to hurt humans, especially very small spiders?
Did the new image of black hole confirm the general theory of relativity?
Why are PDP-7-style microprogrammed instructions out of vogue?
Do warforged have souls?
Visa regaring travelling European country
For what reasons would an animal species NOT cross a *horizontal* land bridge?
Does Parliament hold absolute power in the UK?
Keeping a retro style to sci-fi spaceships?
Is 'stolen' appropriate word?
Loose spokes after only a few rides
Automatically (re)classify data from layer using QGIS?
The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Automatic pyqgis categorized renderer classificationHow to classify shapefile data into groups?Changing Data Source of Layer in QGISHow do I manually classify graduated data in QGIS?Does QGIS have the equivalent of ArcGIS's Layer (*.LYR) file?Is there an easier way to refresh a joined CSV?Changing data (attributes) in .csv of data vector layer and QGIS automatically adopting this?QGIS force saving edited data of layerIs there any way to automatically update a shp layer in QGIS?PostGIS layer QGIS 2.18.12 autorefresh at 10 secondsAutomatically update and reclassify project layer from Excel data
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
2
Is it possible to automatically (re)classify the data of a layer? (properties-symbology-delete all-classify) Because now I have to do this manually each time my data source changes.
qgis csv excel
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
add a comment |
2
Is it possible to automatically (re)classify the data of a layer? (properties-symbology-delete all-classify) Because now I have to do this manually each time my data source changes.
qgis csv excel
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
You can save the style as QML, and use it when the data source is changed.
– ahmadhanb
Mar 4 at 10:44
add a comment |
2
2
2
Is it possible to automatically (re)classify the data of a layer? (properties-symbology-delete all-classify) Because now I have to do this manually each time my data source changes.
qgis csv excel
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
Is it possible to automatically (re)classify the data of a layer? (properties-symbology-delete all-classify) Because now I have to do this manually each time my data source changes.
qgis csv excel
qgis csv excel
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
edited Mar 5 at 8:11
PolyGeo♦
53.9k1782246
53.9k1782246
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
asked Mar 4 at 10:37
bcallewaertbcallewaert
311
311
You can save the style as QML, and use it when the data source is changed.
– ahmadhanb
Mar 4 at 10:44
add a comment |
You can save the style as QML, and use it when the data source is changed.
– ahmadhanb
Mar 4 at 10:44
You can save the style as QML, and use it when the data source is changed.
– ahmadhanb
Mar 4 at 10:44
You can save the style as QML, and use it when the data source is changed.
– ahmadhanb
Mar 4 at 10:44
add a comment |
2 Answers
2
active
oldest
votes
0
Yes it is possible.
- Classify everything you want and when it is okay, save the style as shown below.
(I suggest you to use the QGis Layer Style File since you will re use it into QGis)
- Open your new layer and Load the created style
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
1
Hi! Thanks for the quick answer, but I don't see how this could automatically update my layer data when the data source has changed...
– bcallewaert
Mar 4 at 12:42
And it still requires a lot of manual proceedings
– bcallewaert
Mar 4 at 12:44
Hey @bcallewaert, it doesn't need so much manual proceedings. In fact, When you are done with your categorization (this means you have selected a field and you've defined colors based on some conditions), your will save your style. Since other layers should have the same structure, by applying your style it will automatically repeat all what you've done in the first layer
– Yannick DOUNGMO
Mar 4 at 13:36
Is there a possibility I can contact someone from you through mail so I can show what my problem exactly is? Because now it doesn't fix the problem...
– bcallewaert
Mar 4 at 14:28
1
Because when I save the Style, it also copies the value present at that time in the cell. So when the data source is changed and I load in the saved style, the previous value is again shown in the table. This, of course, should not be the case.
– bcallewaert
Mar 4 at 14:31
add a comment |
0
You need to write some code to simulate what the GUI is doing. I assume you know at what point your data has changed then you can take a look at Automatic pyqgis categorized renderer classification .
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
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
);
);
draft saved
draft discarded
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%2f314271%2fautomatically-reclassify-data-from-layer-using-qgis%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
0
Yes it is possible.
- Classify everything you want and when it is okay, save the style as shown below.
(I suggest you to use the QGis Layer Style File since you will re use it into QGis)
- Open your new layer and Load the created style
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
1
Hi! Thanks for the quick answer, but I don't see how this could automatically update my layer data when the data source has changed...
– bcallewaert
Mar 4 at 12:42
And it still requires a lot of manual proceedings
– bcallewaert
Mar 4 at 12:44
Hey @bcallewaert, it doesn't need so much manual proceedings. In fact, When you are done with your categorization (this means you have selected a field and you've defined colors based on some conditions), your will save your style. Since other layers should have the same structure, by applying your style it will automatically repeat all what you've done in the first layer
– Yannick DOUNGMO
Mar 4 at 13:36
Is there a possibility I can contact someone from you through mail so I can show what my problem exactly is? Because now it doesn't fix the problem...
– bcallewaert
Mar 4 at 14:28
1
Because when I save the Style, it also copies the value present at that time in the cell. So when the data source is changed and I load in the saved style, the previous value is again shown in the table. This, of course, should not be the case.
– bcallewaert
Mar 4 at 14:31
add a comment |
0
Yes it is possible.
- Classify everything you want and when it is okay, save the style as shown below.
(I suggest you to use the QGis Layer Style File since you will re use it into QGis)
- Open your new layer and Load the created style
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
1
Hi! Thanks for the quick answer, but I don't see how this could automatically update my layer data when the data source has changed...
– bcallewaert
Mar 4 at 12:42
And it still requires a lot of manual proceedings
– bcallewaert
Mar 4 at 12:44
Hey @bcallewaert, it doesn't need so much manual proceedings. In fact, When you are done with your categorization (this means you have selected a field and you've defined colors based on some conditions), your will save your style. Since other layers should have the same structure, by applying your style it will automatically repeat all what you've done in the first layer
– Yannick DOUNGMO
Mar 4 at 13:36
Is there a possibility I can contact someone from you through mail so I can show what my problem exactly is? Because now it doesn't fix the problem...
– bcallewaert
Mar 4 at 14:28
1
Because when I save the Style, it also copies the value present at that time in the cell. So when the data source is changed and I load in the saved style, the previous value is again shown in the table. This, of course, should not be the case.
– bcallewaert
Mar 4 at 14:31
add a comment |
0
0
0
Yes it is possible.
- Classify everything you want and when it is okay, save the style as shown below.
(I suggest you to use the QGis Layer Style File since you will re use it into QGis)
- Open your new layer and Load the created style
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
Yes it is possible.
- Classify everything you want and when it is okay, save the style as shown below.
(I suggest you to use the QGis Layer Style File since you will re use it into QGis)
- Open your new layer and Load the created style
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
answered Mar 4 at 10:47
Yannick DOUNGMOYannick DOUNGMO
178110
178110
1
Hi! Thanks for the quick answer, but I don't see how this could automatically update my layer data when the data source has changed...
– bcallewaert
Mar 4 at 12:42
And it still requires a lot of manual proceedings
– bcallewaert
Mar 4 at 12:44
Hey @bcallewaert, it doesn't need so much manual proceedings. In fact, When you are done with your categorization (this means you have selected a field and you've defined colors based on some conditions), your will save your style. Since other layers should have the same structure, by applying your style it will automatically repeat all what you've done in the first layer
– Yannick DOUNGMO
Mar 4 at 13:36
Is there a possibility I can contact someone from you through mail so I can show what my problem exactly is? Because now it doesn't fix the problem...
– bcallewaert
Mar 4 at 14:28
1
Because when I save the Style, it also copies the value present at that time in the cell. So when the data source is changed and I load in the saved style, the previous value is again shown in the table. This, of course, should not be the case.
– bcallewaert
Mar 4 at 14:31
add a comment |
1
Hi! Thanks for the quick answer, but I don't see how this could automatically update my layer data when the data source has changed...
– bcallewaert
Mar 4 at 12:42
And it still requires a lot of manual proceedings
– bcallewaert
Mar 4 at 12:44
Hey @bcallewaert, it doesn't need so much manual proceedings. In fact, When you are done with your categorization (this means you have selected a field and you've defined colors based on some conditions), your will save your style. Since other layers should have the same structure, by applying your style it will automatically repeat all what you've done in the first layer
– Yannick DOUNGMO
Mar 4 at 13:36
Is there a possibility I can contact someone from you through mail so I can show what my problem exactly is? Because now it doesn't fix the problem...
– bcallewaert
Mar 4 at 14:28
1
Because when I save the Style, it also copies the value present at that time in the cell. So when the data source is changed and I load in the saved style, the previous value is again shown in the table. This, of course, should not be the case.
– bcallewaert
Mar 4 at 14:31
1
1
Hi! Thanks for the quick answer, but I don't see how this could automatically update my layer data when the data source has changed...
– bcallewaert
Mar 4 at 12:42
Hi! Thanks for the quick answer, but I don't see how this could automatically update my layer data when the data source has changed...
– bcallewaert
Mar 4 at 12:42
And it still requires a lot of manual proceedings
– bcallewaert
Mar 4 at 12:44
And it still requires a lot of manual proceedings
– bcallewaert
Mar 4 at 12:44
Hey @bcallewaert, it doesn't need so much manual proceedings. In fact, When you are done with your categorization (this means you have selected a field and you've defined colors based on some conditions), your will save your style. Since other layers should have the same structure, by applying your style it will automatically repeat all what you've done in the first layer
– Yannick DOUNGMO
Mar 4 at 13:36
Hey @bcallewaert, it doesn't need so much manual proceedings. In fact, When you are done with your categorization (this means you have selected a field and you've defined colors based on some conditions), your will save your style. Since other layers should have the same structure, by applying your style it will automatically repeat all what you've done in the first layer
– Yannick DOUNGMO
Mar 4 at 13:36
Is there a possibility I can contact someone from you through mail so I can show what my problem exactly is? Because now it doesn't fix the problem...
– bcallewaert
Mar 4 at 14:28
Is there a possibility I can contact someone from you through mail so I can show what my problem exactly is? Because now it doesn't fix the problem...
– bcallewaert
Mar 4 at 14:28
1
1
Because when I save the Style, it also copies the value present at that time in the cell. So when the data source is changed and I load in the saved style, the previous value is again shown in the table. This, of course, should not be the case.
– bcallewaert
Mar 4 at 14:31
Because when I save the Style, it also copies the value present at that time in the cell. So when the data source is changed and I load in the saved style, the previous value is again shown in the table. This, of course, should not be the case.
– bcallewaert
Mar 4 at 14:31
add a comment |
0
You need to write some code to simulate what the GUI is doing. I assume you know at what point your data has changed then you can take a look at Automatic pyqgis categorized renderer classification .
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
add a comment |
0
You need to write some code to simulate what the GUI is doing. I assume you know at what point your data has changed then you can take a look at Automatic pyqgis categorized renderer classification .
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
add a comment |
0
0
0
You need to write some code to simulate what the GUI is doing. I assume you know at what point your data has changed then you can take a look at Automatic pyqgis categorized renderer classification .
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
You need to write some code to simulate what the GUI is doing. I assume you know at what point your data has changed then you can take a look at Automatic pyqgis categorized renderer classification .
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
answered Mar 8 at 3:03
kartoza-geekkartoza-geek
5461310
5461310
add a comment |
add a comment |
draft saved
draft discarded
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.
draft saved
draft discarded
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%2f314271%2fautomatically-reclassify-data-from-layer-using-qgis%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
You can save the style as QML, and use it when the data source is changed.
– ahmadhanb
Mar 4 at 10:44