Questions tagged [filter]

To show, hide, extract, or remove particular data from a larger set, narrowing it down, or the specific criteria used to do so.

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Eliminating missing pixels in NDVI time series analysis by temporal gap filling with linear interpolation to get a smooth result

The code is running correctly but it doesn't give me a smoothened result. Anyone who can help me out? var startDate = '2015-01-01'; var endDate = '2023-12-31'; var images = sentinel.filter(ee.Filter....
Eppez's user avatar
  • 3
1 vote
1 answer
37 views

How to use AJAX request to filter WFS data?

I want to create a mash-up that shows UNESCO sites in Italy on a basemap as I did in the first part of my code. With the AJAX call I want to include the number of earthquakes within 50km of each ...
Alm94's user avatar
  • 81
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0 answers
37 views

Filtering Features Graphically on QGIS

I currently filter QGIS features using expressions. However, as I need to handle a large number of variables this can be tedious. Is there a plugin or any other method to filter features of a given ...
Nandula's user avatar
  • 781
3 votes
1 answer
153 views

QGIS Attribute Form -> Value Relation -> Filter expression: expressions or functions to get the names of current layer and current field

Shortcut to the core question: How to write a custom function to get the name of a field in an Attribute Form? I would like to use it as a variable in a Filter expression of a field with a Value ...
Bernd V.'s user avatar
  • 3,179
0 votes
1 answer
34 views

Dynamic Filtering based on unique values of ArcGIS vector layer field

I'm trying to achieve in ArcGIS some sort of dynamic filter where the software would propose filtering options based on unique values in a vector layer field. This is similar to how PowerBI or Tableau ...
Frank's user avatar
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0 answers
21 views

GEE filtering featureCollection with a condition

I have a dictionary in the form : f_dict = {'A':2, 'B':10, 'C':3, 'X':112, ...} dict.keys() correspond to a GEE featureCollection property. Lets call it 'f_prop'. dict.values() correspond to the &...
Sinooshka's user avatar
  • 381
3 votes
1 answer
56 views

QGIS - Atlas : how to filter the pages of the Atlas?

I generated an atlas with plots in it and I wonder if I can choose what pages I want to keep in my atlas, using the page's number. I have this list for my page. For example, for the abreviation "...
Sarah BOUTARD's user avatar
1 vote
1 answer
76 views

How to remove small polygons using Python

I would like to perform in Python, the action done by the following QGIS command: Processing Toolbox > Vector Geometry > Keep N Biggest Parts It removes the smallest polygons from a ...
Oalvinegro's user avatar
1 vote
0 answers
28 views

Displaying only features filtered in attribute table on map in QGIS

Having filtered features using the Attribute Table filter feature how do I display only those features and hide the rest on the Map screen? I can 'select' them so they are highlighted but I want to ...
Edward's user avatar
  • 179
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0 answers
32 views

Filtering data on QGIS

I have a raster displaying anchoring intensity in the Mediterranean Sea. As you can see in the first screenshot, there are two different classes (pink and dark pink). I would like to get rid of the ...
Arnaud Boulenger's user avatar
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24 views

Customizing a WFS-url

At the moment I am working on a schoolproject and I want to customize a WFS-url. The WFS-url (https://service.pdok.nl/lv/bag/wfs/v2_0?request=GetCapabilities&service=WFS) shows 4 shapefiles when ...
DaanV's user avatar
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-1 votes
1 answer
48 views

Filtering image collection based on a custom function Google Earth Engine Python API

I want to filter image collection based on a custom function Google Earth Engine (GEE) Python API. For example, and this is just an example to make this question tangible. I want to filter the ...
user88484's user avatar
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0 answers
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Collection of images for specific points without exceeding memory in GEE

I've been using your help for months now but today it's my time to ask my first question. I have been working with a collection of images for 4 years for small areas and developed a script that ...
Giannis Gallios's user avatar
1 vote
1 answer
83 views

Changing layer filter according to Map Theme in QGIS

I have a project in QGIS with configured map themes. Some layers need only certain features to be shown for each theme. The layer filter is not a part of a style, so the theme can't change the filter. ...
BlackTesta's user avatar
0 votes
1 answer
33 views

Filtering WFS request by bbox, typeName and typeID

I never worked with WFS before but am forced to get a few responses from a public WFS server for a prototype research project. I have skimmed many resources and tried out lots of combinations but I ...
baddiz's user avatar
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0 votes
1 answer
43 views

Exporting atlas using "filter by" fields

The "filter by" option in the Atlas dialogue doesn't seem to work for me. When I create a filter using an expression consisting of several fields, the atlas export includes pages which ...
RedCitrus's user avatar
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0 answers
72 views

Geoserver SLD styling with multiple filters & Denominator

I have a WFS Store - I add a new layer from there and style it. Style is generating too long URL (Depending on a features requested). Often geoserver log is filled with. java.lang.RuntimeException: ...
Tomppeli's user avatar
4 votes
1 answer
133 views

Updating filter expression or filter value from one layer to another layer in QGIS

From a layer1 to which I apply a filter ("field1"='value') in the provider feature filter dialog window, I would like to reuse this Expression, or just the attribute 'value' in another ...
Acperience's user avatar
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0 votes
0 answers
47 views

QGIS Server | WMS | Filter with LIKE operator and % wildcard

QGIS Server is accepting with WMS serving the filter operator LIKE (and also ILIKE in non geopackage bases). In order to use LIKE reasonably also the wildcard "%" should be usable: ...&...
relume's user avatar
  • 71
1 vote
0 answers
51 views

Match ids in different layers by PyQGIS

I have a CSV with a column of filtered ids, and because of the filter, the ids are out of order (they start at 23 and not 1) and from it I create another layer with the same number of features, but at ...
Mestrexama's user avatar
1 vote
1 answer
60 views

Remove previous features from GeoJSON layer on filtering data in Leaflet

The following block corresponds to a temporal slider that should update (add and remove) a set of points in a leaflet map. The code below is currently working as I want, it can add the points when the ...
PedroMTG's user avatar
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0 answers
55 views

Attribute table can't be "unfiltered"

We got a shapefile from someone who is working with ArcMap. For them, the file contains 363 features - for us, when opened in QGIS 3.28.7, the file only contains 321 features. The attribute table ...
Erik's user avatar
  • 16.1k
-1 votes
1 answer
52 views

.filterDate is not function

I'm having an error while trying to filter a dataset by date with the function .filterDate(). My dataset is as follow : I'm using this function in the code below : var zonalStatsL = intervals.map(...
Aurélien Lengrand's user avatar
1 vote
1 answer
54 views

Filter for next value

I'm working with QGIS 3.28.5. I'm working on breeding bird data. I have a set of points where I heard a bird on a specific date. Now I want to separate the territories. My problem is, that I have to ...
golo peters's user avatar
0 votes
0 answers
12 views

r.mfilter not applying to raster map

I tried applying r.mfilter to my raster map and it is saying error and not creating any filtered layer. I have tried closing the app and redid project again and upgraded grass as well but still the ...
sathisha's user avatar
0 votes
1 answer
24 views

Filter out blue patches in greenest pixel composite - GEE Quality Mosaic NDVI change image Sentinel-2

I am making greenest pixel composites from Sentinel-2 SR (using the quality mosaic tool in GEE based on NDVI). I then subtract two greenest pixel composites to get a change in NDVI image. These blue ...
Erin's user avatar
  • 157
1 vote
0 answers
90 views

Export layers in QGIS back to OSM format

I downloaded a Delaware OSM file from the Geofabrik website. I want to simplify and reduce the size of the graph to speed up queries (eventually I'll run it on whole US). I'm only concerned about the ...
Vivek Reddy's user avatar
2 votes
1 answer
139 views

Filter raster by taking the max of a Gaussian filter

I have a raster which I applied a Gaussian filter. By "default", the Gaussian filter, takes the mean within the kernel. How can I take the max, instead of the mean, within the kernel? Here ...
Nikos's user avatar
  • 968
0 votes
1 answer
1k views

Is it possible to Filter all the data in a map using Experience builder filter widget?

I am using Experience builder on ArcGIS Enterprise (10.9.1 I believe). I'm making a dashboard and I am trying to filter all the data based on date. When making dashboards in the Dashboard application ...
Thomas's user avatar
  • 1
0 votes
1 answer
54 views

Filter images that are covered with my roi more than 80%

This is my collection with (453 elements) in it which I firstly added filterBounds(polygon): var collection = collection_L5.merge(collection_L7).merge(collection_S2); print(collection) But many ...
MohammadJavad Soltani's user avatar
0 votes
0 answers
908 views

Configure pop-up in Experience Builder

In Experience Builder, seems that a Filter widget, when launched will always dock at the bottom of the map window; my pop-ups for my web map also dock at the bottom. Problem is, on a phone or other ...
Dave Sz's user avatar
2 votes
1 answer
74 views

Iterating over LineString and applying filter in PostGIS

I want to iterate over a LineString and apply a filter so that I create a new LineString with those points that succeed in the test. How do I do that? My goal is to find some outliers that are too far ...
rablentain's user avatar
1 vote
0 answers
67 views

Separating data in name field so it can be filtered in QGIS

I have some information that I want to filter by some of the fields under the primary name field for ex: "gs_substation" or "gs_feeder_number". But they are unable to be filtered ...
Carlos C's user avatar
2 votes
1 answer
61 views

Selecting rows in the attribute table depending on the time in QGIS

Related to this and this questions, having the following table, I would like to select just one row per minute: I have tried this expression, unsuccessfully: time = array_min (array_agg ( time, ...
Trikelians's user avatar
4 votes
0 answers
85 views

Filtered features in attribute table

Attribute table header of point layer says: "Features total 1200, Filtered: 1197, Selected: 0" There is no layer filter active and also no filter is set in the layer properties under tab &...
Hannes's user avatar
  • 107
1 vote
1 answer
52 views

apply filter on image pixels on dynamic world dataset to get pixels having specific index value in GEE

While selecting pixels having specific values using following code, ////////////////// Dynamic World //////////////////////// var dw = ee.ImageCollection('GOOGLE/DYNAMICWORLD/V1') ....
HARSH's user avatar
  • 97
0 votes
1 answer
66 views

Filter features shown by date in Qfield

I'm trying to set up qfield for tree inspections. I know you can filter features in QGIS, but does it carry over to QField? For instance, I have many trees, but I only want the ones with overdue/...
SHall's user avatar
  • 21
1 vote
1 answer
95 views

Filtering string column with datetime in PyQGIS

I have a CSV in QGIS and one of the columns is "Data/Hora GPS" with the DateTime in format (day/month/year hour:minute:second), in the field calculator I used the expression for filter: ...
Mestrexama's user avatar
1 vote
1 answer
25 views

How can I update this function to block out values of NDVI that are greater than or equal to 0.1?

Really new to JavaScript and Google Earth Engine, sorry if formatted badly. I am wondering if there is a way to only calculate an NDVI value that is greater than 0.1 in my .addBands line. If not, how ...
Westfruit's user avatar
1 vote
0 answers
48 views

Display only the features of a layer that are intersected by a dynamic atlas layer in QGIS

Is there a way for a layer (line) that has the symbology displayed dynamically by Atlas to determine ("filter") the symbology display of another layer (polygon) by intersection? Example of ...
Raphael Dias's user avatar
0 votes
0 answers
150 views

QGIS - attribute(@atlas_feature) function in overlay filter

I am actually trying to make a QGIS style that match my current entity in the atlas. For this, I need to use : the functions overlay_intersects with one of my layer with filter the attribute value of ...
kgb61393's user avatar
3 votes
1 answer
196 views

QGIS - advanced Atlas settings - display attributes combined by parcel

I have a polygon containing information about a planned usage (construcion-roads or construction sites) which were intersected with the parcel- and owner-information. So the attribute-table contains ...
Marek's user avatar
  • 547
0 votes
0 answers
87 views

Find and select local maxima on a raster

I'm trying in ArcGIS to obtain local maxima from a raster (for example a DEM) calculated with a circular sliding window of constant radius. Is there a way to pick up and select the local maximum ...
Marco Fioraso's user avatar
1 vote
0 answers
63 views

QGIS aggregate intersects points in polygon by filtering values

I have in QGIS 3.28 points and polygon layer. I want to create virtual field that SUM on the point layer all the specific values the points intersecting in the polygon that are filtered according to ...
Rii Pii's user avatar
  • 411
0 votes
1 answer
128 views

How to getValue (string) from an ui.Checkbox in GEE

I am developing an GEE-app where I initially want to concatenate a birdSelector string for user-defined filtering of an image collection containing monthly bird distribution maps from different ...
Frank Hanssen's user avatar
3 votes
1 answer
358 views

Filtering maximum and minimum length in QGIS Attribute table

My Dataset contains the field "length" with numbers from 1 to 100. I just want to filter data which are greater than 50 or which are less than 50. I just use the formula: "Length" &...
Bruno B's user avatar
  • 839
3 votes
1 answer
98 views

selecting features having area in a specific range

I have converted the image to vector, now I need to select area features which are less than 5sqkm and greater than 0.5sqkm. following is the code but I'm getting an error, please help me with the ...
HARSH's user avatar
  • 97
0 votes
1 answer
212 views

Filter points from a feature collection that do NOT overlap with polygon in Google Earth Engine

I have a feature collection of points, some of which overlap with a polygon. I want to filter out the points that do not overlap with the polygon, and create a new feature collection. I am able to ...
Hutch T's user avatar
0 votes
1 answer
33 views

Exclude a date for Albedo calculation

I work on a university project and I use Google engines. I want to get albedo above a city environment, one value is weird according to other data and I wish to exclude one date corresponding to this ...
Lilian's user avatar
  • 11
1 vote
1 answer
321 views

Filter FeatureCollection by multiple properties

I have a FeatureCollection ('results'), with several cloud probability values as properties (from different dates). These properties are called "CLD01", "CLD02",... I want to ...
pottsbill's user avatar

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