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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.

2
votes
1answer
107 views
+100

Filter vector layer by searching through complete attribute table - limitations and improvements

In a case were I have a shapefile with a lot of attributes (predominantly text), also I don't have any information about the structure and I don't have any idea in which attribute I have to search/...
1
vote
1answer
44 views

Showing only one feature per Report page in QGIS 3

The gift of Reports in QGIS is a massive step in the right direction. I have set up a department template for my team to use and it looks great! Right now, I am attempting to setup a report that will ...
1
vote
0answers
34 views

Unexpected behaviour using Filter in QGIS 3.2

I have encountered an unexpected difference in how the Filter function works in QGIS 3.2 to previous versions (2.14 for example). I used the Filter function to select a set of features based on a ...
1
vote
1answer
22 views

In QGIS, how can I use a delimited text layer to keep only those polygons and records of a shapefile which match a column in the delimited text layer?

What I want to do is trim the shapefile so that only those records and associated shapes that match the same values in a column in the delimited text layer (which in my case is a CSV) are kept in a ...
1
vote
0answers
32 views

Channel network polyline shapefile filter [closed]

I need to filter the red polyline shapefile keeping only the real channel network without the little features (noise). I use ArcGIS
0
votes
0answers
22 views

ArcMap filtering with messy data

I am working with a DEM that has a bit more data than I actually need. Specifically, even the lowest resolution version is 100ft and I'm trying to reduce it down to 500ft or even 1000ft intervals. I ...
0
votes
0answers
24 views

Webmaps including data filtering options for viewers

With QGISCloud, is it possible integrate data filter options for the mapviewers on the webmaps? To explain, I am generating webmaps of clients for sales teams, but I want people accessing the webmaps ...
0
votes
0answers
16 views

Number of Frost-Free Months in Google Earth Engine (from TerraClim dataset)

I want a map that shows me the number of months per year that temperatures do not drop below freezing (0°C), or frost-free months. I think the code below accomplishes this... does it? I am sure that ...
0
votes
0answers
15 views

Using Mapbox, I have a filter input. As i type I would like the points to filter by words in the input

Below I have a code that basically filters as I move along the view which is good. However I would like to also include a portion within here that would make points disappear as I type in my search ...
0
votes
3answers
107 views

Filtering interactive leaflet-map with dropdown-menu?

I try to set up a filterable "shot chart" like http://graphics.latimes.com/kobe-every-shot-ever/ with leaflet. I've a geojson file thats stores all the shots data, I've them showing up in a layer. ...
0
votes
0answers
16 views

PDAL Filter output is same as input file

I've applied SOR filter using PDAL python.Below is the code snippet of the same, json = """ { "pipeline":[ "D:/Lidar_collect_3/output/output_1.las", { "type":"filters....
0
votes
0answers
30 views

Filtering the atribute table on the atlas page so it only shows atributes of objects related to the featured object

I have been trying to make an atlas of cadasters, using different themes and rule-based symbolology, but one thing doesn't seem to work. On each atlas-page I want to put a table showing the ...
1
vote
1answer
40 views

Earth Engine: nearly identical Sentinel 2 images for same date, same place?

I am using Earth Engine to retrieve Sentinel 2 data. I thought that for a given date and place, I would find only one Sentinel image (revisit time is multiple days). I notice however that for some ...
0
votes
1answer
31 views

Select Features outside of polygon or reverse .filterBounds Google Earth Engine

Is there an easy way of selecting only those features not contained inside a certain polygon, let´s call it aoi? FeatureCollection.filterBounds(aoi) retrieves every Feature inside aoi?
1
vote
1answer
25 views

QGIS 2.18: Filter line-layer by QgsExpression

I have a line layer on which I want to run a filter within a python script. I am trying to achieve this via QgsExpression and QgsFeatureRequest. Below you see the same filter that I want to apply in ...
3
votes
1answer
70 views

QGIS Atlas generation - 2 panels with different sections both Atlas generated

I have a polyline that I split in 5000 m sections and I made it to generate an Atlas for the first step, but since the sections that I want to show are long and not wide I would like to add sections, ...
2
votes
1answer
32 views

Google Earth Engine Filter seasons independent from year

Is something like this possible? and how ? Image.Collection.filterDate('20xx-04-01','20xx-09-31')
4
votes
2answers
53 views

Using Google Earth Engine to exclude upper 1% of data?

I would like to exclude the upper 1% of my Data ('VV' Band) because of noise reduction var s1_data = ee.ImageCollection('COPERNICUS/S1_GRD') var s1_grd_iw_vv_des = s1_data .filterDate(begin,end) ...
0
votes
0answers
52 views

How can I generate a series of maps from time series data in QGIS3?

I've got a polygon layer containing some time series data in cells and I'm trying to create a series of maps from it. Data structure: every polygon has a timestamp and a value that I'm displaying on ...
2
votes
0answers
47 views

QGIS Rule-Based Labeling - Toggle child rules visibilty

So it works to add labels by dragging it to another label, like it does in styles. But if I try to hide this upper filter, the contained labels won't hide. Is this a bug, or is it not wanted, to set ...
3
votes
1answer
85 views

Filtering (lasfilter on) huge LiDAR dataset

My dataset is about 8.3 GB after loaded into R environment by using lidR package. Some points which have return number greater than number of returns need to be removed. With a small dataset, I ...
0
votes
1answer
24 views

Google Earth Engine: Extract rule based values from List and Array

I'm wondering how to extract values from a ee.List and ee.Array that meet a certain criteria in the Google Earth engine environment. var array1 = ee.Array([1,1,2,2,3,3,4,4]) var list1 = ee.List([1,1,...
1
vote
1answer
32 views

Leaflet bind popup + filter

I have problems with the code, I do not know where to place the part with the popup. This does not work if I want to use the data attribute in the popup window: var okruh1= L.geoJSON(trate, { ...
0
votes
2answers
42 views

Use Image in calculation if a certain property is given

The goal is to select certain images from an image collection of Landsat 5 raw scenes, which possess a property called RADIANCE_MAXIMUM_BAND_6, since not all images contain this property. if (...
0
votes
1answer
31 views

How to filter a feature collection to only features ENTIRELY inside another feature

I have 2 feature collections. One of the "departamentos" of Argentina, and another of the "provincias". These are internal political boundaries. The "departamentos" each belong to only one "...
1
vote
1answer
68 views

How to filter through geometry of feature collection instead of properties?

I have a FeatureCollection I made from a Polygon shapefile. I have fixed the geometries in qgis and should only be made out of many single polygons. But for some reasons some of my features are ...
1
vote
1answer
38 views

How to filter style to display only where data in one column in the attribute table is not the same as the data in another column

I have a .shp with attribute data containing current zone, current code, proposed zone, proposed code, final zone, final code etc. I want to duplicate this layer and style it to display a black ...
1
vote
1answer
39 views

Create new vector of polygons that are within 500m of a point in vector of points P

If I have a vector of polygons A (say 200) and want to create a new vector (say 120) of the original 200 polygons that are with 500m of a vector of points P (say 50), this is the method I do. I want ...
2
votes
0answers
106 views

AGOL Web AppBuilder - Group Filter Widget with multiple layers

I am creating a Dashboard web application for displaying utility projects using the AGOL Web AppBuilder interface. I would like to set up a Group Filter widget to filter based on a common attribute ...
0
votes
1answer
29 views

Shapefiles - ability to toggle editing and filtering

I have a shapefile from a county HER which I have successfully loaded. I have catagorised the point so depending on type they show a different symbol. I can filter those points in order to show ...
0
votes
0answers
44 views

Filtering the atlas coverage layer by a different layer in QGIS

I need to create one map atlas for each municipal administration filtering the coverage layer (red rectangles = map sheets) by municipal administrations boundaries layer (green polygons). How is it ...
-1
votes
1answer
36 views

Exclude specific GeoJSON data by polygon [closed]

Given geospatial data as GeoJSON, how can I filter this data to exclude geometries within a specified polygon? I need this to work in JavaScript. Example: function filter(featureCollection, ...
0
votes
1answer
256 views

Clustering point data in QGIS?

Working in QGIS 3.4.1 Madeira I have a layer with many data points, for visual purposes I wish to remove some of the overlaying points. Is there a simple way to perform some sort of clustering/...
1
vote
1answer
87 views

Filter a date interval (month) shapefile

I'm trying to filter some data of a shapefile (with "Filter") for QGIS to show points in a date interval of a shapefile. I have a shapefile which has a table of attributes of sightings of animals with ...
1
vote
1answer
67 views

Filter Google Earth Engine image collection between today and 10 days ago

I wrote a small script that filters GEE image collection by date that I'm manually change: var start_date = '2018-11-02' var end_date = '2018-11-30' // choose image collection var ls8 = ee....
0
votes
2answers
91 views

GeoServer WFS viewParams for complex features

In GeoServer, I installed an app-schema linked to a PostGIS database. When I call the layer via the WFS GetFeature I have an INSPIRE compliant GML file that looks like (small portion of the GML): <...
2
votes
1answer
46 views

Filtering Polygon Data with many statements in QGIS

Working with QGIS 3.4.1 - Madeira I am trying to perform a simple Filter, but when I include more than 31 values of a given field I get Zero returns. Is there a limit to the number of statements ...
1
vote
0answers
96 views

Filter on joined tables in QGIS

QGIS 3.2.3: I have a shapefile and an Excel table which is joined to the shapefile based on matching IDs. I would like to filter the shapefile while using a joined field from the Excel table. When I ...
0
votes
3answers
60 views

Filtering attributes in a shapefile using a common ID from an Excel file

I am using QGIS 2.18.11 and I have a shape layer with lines and polylines I need to review; but not all of them, only certain ones. The ones I need to review are marked in a specific field (rev = 0 or ...
2
votes
1answer
195 views

Filtering earth engine image collection by image ID

I'm trying to filter an image collection using not bands within each image of the collection, but by pattern matching in the image ID. Using: var dataset_2099 = ee.ImageCollection('NASA/NEX-DCP30') ...
0
votes
1answer
38 views

How can I turn editable a shapefile that has been previously saved filtered?

After describing this issue in Qgis: Shape layer turns non-editable if saved filtered (where the answer basically was "if you filter, don't edit"), it has happened again (filtering and editing ...
0
votes
1answer
78 views

Apply .median reducer to image collection over roi EXCLUDING images with high cloud cover. GEE

I'm trying to train an algorithm to detect mangrove forests in several regions around Asia for each year using Landsat 8. When I apply the .median reducer on some image collections over a 1-year ...
4
votes
1answer
309 views

How do I filter a layer based on property that's an array in with Mapbox GL JS?

I've got a relational dataset broken into two layers: members and organizations. They're GeoJSON, with features that look something like this: // Org Features { "type": "Feature", "geometry": { ...
2
votes
1answer
208 views

Importing LiDAR point cloud classes in Potree?

I can't find a way to import classes (roof, vegetation, ground, etc..) in Potree. I generated the web page, except I get the black point cloud. When I, for example, open .las file in ERDAS Imagine, I ...
0
votes
0answers
33 views

Data value range variance of FFT

I want to perform a FFT conversion for tiff images and following is my code. However, data range of FFT result is in range from 0 to 255, this is different from my original tif image(almost is ...
1
vote
0answers
63 views

How to filter legend by map content in composer with raster layers?

Does the "Filter Legend by Map Content" button in composer of QGIs 3.2 version work only for vector layers? It seems it's a bug reported in 2.18.x version and should be fixed for 3.x versions (https://...
1
vote
0answers
86 views

ogr2ogr: filter on date-field

ogr2ogr -spat_srs EPSG:31370 -spat 179600 167350 179800 167500 -f "ESRI Shapefile" test.shp "WFS:http://ccff02.minfin.fgov.be/geoservices/arcgis/services/WMS/Cadastral_Layers/MapServer/WFSServer?" ...
1
vote
3answers
235 views

How to speed up query performance with PostGIS data served up in GeoServer and OpenLayers?

I have published a table with @ 6 million polygons to geoserver, and have built a tool using the OpenLayers filter class to query the data. The performance is abysmally slow, often times not ever ...
1
vote
2answers
69 views

QGIS: Is there any interactive tool to select previous or next points using fid/attribute table order?

I have a huge point file (4933873 points, currently in GeoPackage)) looking this way: imported from a CSV of following structure: Captured Time,Latitude,Longitude,Value,Unit,Location Name,Device ID,...
1
vote
1answer
28 views

Geoserver filter point

I'm trying to make a filter function that I add to an URL. I managed to make it work for polygon, but I'm struggling with filter function for point type. Currently I am trying to use something like ...