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.

Filter by
Sorted by
Tagged with
0
votes
0answers
16 views

WebAppBuilder Developer 2.15 Bug in Filtering?

We have Portal 10.7.1 and WebAppbuilder Developer 2.15 with a Filter Wiget and two expressions, we have the setting for the drop-down set to "Ask for Values" "Values Filtered by all other expressions"....
2
votes
1answer
20 views

Usage of geometryFilter in Planet.com API?

Question: Where to put the GeoJSON filter AOI into the existing Python script I wrote to constrain (or clip) the image download? Setup: I was recently tasked with writing a Python script to download ...
2
votes
0answers
19 views

Randomly filtering points in unevenly distributed point dataset?

I have a vegetation plots dataset which has unduly high concentrations of plots in certain parts of the dataset. I want to even out the concentrations of points so that there is a more even ...
0
votes
0answers
29 views

package RSAGA : rsaga.geoprocessor error INPUT with R

I'm a french student, in advance I'm sorry for my english. I'm using RSAGA package to apply Gaussian Filter in my Canopy Height Model (CHM = DMS-DMS). I try this with RSAGA package, see below... ...
2
votes
2answers
67 views

Complex filter expressions in QGIS

I want to filter a OSM file by several criterias by combining several AND and OR operators via Layer Properties -> Source -> Query Builder. My filter looks like: "highway" in ('secondary','tertiary','...
2
votes
2answers
39 views

Filter image collection to one specific date (Earth Engine)

I'm using GEE and I have many codes were I filter my imagecollection by using filterdate (and then I have date range) and then I work with the first image in the imagecollection, when I know from the ...
0
votes
0answers
11 views

Same filter on different GeoJSON, works on Firefox but not Chrome

I built a webmap with Leaflet and I'm almost done but I'm seeing a strange behaviour with Chrome. My filter is working fine on Firefox/IE but with Chrome, it works only on one layer (while my filter ...
1
vote
1answer
21 views

Grabbing the portal sign-on Username in WebAppBuilder and filtering records based on the user logged in

We have Arcgis Portal 10.7.1 set up with WebAppbuilder 2.51 Users sign in using their Enterprise logins. We also have a large Feature Service dataset (over 1 million records) with multiple account ...
2
votes
1answer
65 views

Adding filter functions in place of a literal expression in GeoTools?

I'm writing some code to use filter functions in geotools. (attName >= replacementFunc() AND title LIKE replacementFunc()) AND attName2 = replacementFunc() In the area that says LIKE I get a ...
1
vote
1answer
58 views

Separating LAS Dataset (.lasd) into point files of each class?

I am want to examine my DEM, DSM, and other models I'm generating from LiDAR data in the model wizard to find the method with the least amount of error. I want to separate the ground, and non-ground ...
1
vote
1answer
50 views

QGIS - Aggregating in virtual field

I'm using Qgis 3.10. I have two layers, let's say A and B. In layer A, there is informations about construction work (one row by construction). Each construction has an ID (ID-A). In layer B, there ...
1
vote
1answer
27 views

Median filter_invalid syntax

I would like to apply a median filter to an image (.tif). I looked for solutions in QGIS, and found a lot of possibilities to apply a mean filter, but none for a median filter. So I decided to try ...
1
vote
1answer
49 views

GeoServer shows 404 error when CORS filter is added

I am trying to enable the CORS for GeoServer. I am using GeoServer 2.16 and the Tomcat version of 9.0.8. I already tried to add following code in geoserver/WEB-INF/web.xml file, <filter> &...
2
votes
2answers
51 views

Filtering layers in QGIS atlas while displaying them in the canvas

I would like to create and atlas that instead of displaying all the features within a layer, it only displayed those related to the atlas. Certainly, I could do as this excellent answer suggests, ...
0
votes
0answers
25 views

QGIS: Adding authors to print composer automatically

I have a problem that I can't get my head around and would appreciate even just a nudge in the right direction. My use case is a polygon layer 'All' that has two values, 'ID' and 'Author'. The ...
1
vote
0answers
41 views

Powerlines query in overpass turbo

Kindly advise or assist, I want to achieve following in overpass turbo: Map/display transmission lines (power=line) and distribution lines (power=minor_line) of a specific area in map. I used below ...
1
vote
1answer
57 views

Clip image collection to imported shapefile (region of interest)?

I am working in Google Earth Engine. Is it possible to clip the Landsat scenes to the boundary of my area of interest rather than just filtering down the number of scenes to those that touch the area ...
5
votes
1answer
46 views

Count values from another layer based on value of current feature

I have two layers. One is a shapefile of U.S. states where each state is labeled with the attribute STATE_NAME, and the other is a CSV data layer named rid with many points that are labeled with a ...
1
vote
1answer
135 views

GeoJSON layer shows/enables only one row in attribute table in QGIS

I have a GeoJSON polygon layer which I converted from a shapefile layer. The layer opens up in geojson.io, for example, with no problem, displays the table correctly, etc: However, in QGIS the ...
13
votes
2answers
25k views

How to filter features in a layer?

I am trying to display certain features in a shapefile-based layer using QGIS. I have found the subset function in the properties panel, which does exactly what i want, but is too tedious given that I ...
4
votes
1answer
39 views

Create centroids from point layer based on unique field names

I have a point layer in QGIS, which I want to filter by attribute values of a specific attribute column. For each unique attribute value, a centroid should be calculated from the respective features. ...
1
vote
1answer
49 views

When working with MOD09GA product, is supposed QC bitmask for high aerosol quantity to return 4 values?

it's the first time I'm working with MODIS data and I am a bit confused about how bits work and how masks are created. After a bit of research I've been able to understand, more or less, how bit ...
7
votes
3answers
512 views

How to filter point cloud by flightline in R?

The lidR package in R provides a way to mark individual points in a point cloud with a flightline ID by using lasflightline(). From the documentation: Retrieve each individual flightline by ...
1
vote
1answer
1k views

Dynamic filter on tile (WMS) layer in OpenLayers

I have a tile layer with a WMS source coming from GeoServer. I want to add and change a filter to it when a user changes their selection. I can see some examples for OpenLayers 3 and Vector layers but ...
0
votes
1answer
23 views

Filter by day and reducing region by polygon using image collection in GEE

My overall program is here. I have an aerosol index that I already reduced for daily means: var countries = ee.FeatureCollection("USDOS/LSIB_SIMPLE/2017"); var Iraq = countries.filter(ee.Filter.eq('...
0
votes
1answer
50 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
3answers
195 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
0answers
28 views

Create a report with filter from different layer using Atlas

I have the following scenario: Layer ‘grid’, with a field called ‘number’ Layer ‘log’ with field called ‘number’ in common with ‘grid’ layer and another field called ‘date’ Layer ‘problem’ with field ...
1
vote
1answer
27 views

No output is being generated by ArcPy's MakeFeatureLayer method

I have a feature class that I would like to filter by an attribute and write the result to a new feature layer. I can achieve this with a simple one-liner in the R programming language, but I need to ...
2
votes
1answer
29 views

Shortcut to activate and deactivate a layer filter

I'm looking for the fastest way to filter and unfilter a layer in qgis 3. My current workflow is too tedious: right click on layer / filter / write filter or delete filter My final goal is to see ...
1
vote
0answers
27 views

Howto write QGIS server WMS GetPrint with 'OR' in filter

According to the QGIS manual I can include 'OR' in a WMS GetPrint request (https://docs.qgis.org/3.4/en/docs/user_manual/working_with_ogc/server/services.html#filter) But I cannot get it to work and ...
1
vote
1answer
52 views

Subset a lascatalog point cloud within a function while calculating grid_metrics

I am trying to create subsets of a point cloud based on the ScanAngleRank and compute some metrics for each subset. Then return a stack of values(rasters) for the metric. I modified the rumple index ...
3
votes
1answer
478 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
2answers
198 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): <...
0
votes
1answer
48 views

Data type doesn't match error in Sieve filter

I classified some land cover types in aerial image with Erdas Imagine, now I want to remove classification errors showing very small areas. I tried to use Sieve filter, but getting error notification "...
0
votes
0answers
27 views

How to register own CQL filter in GeoServer?

I have created new FilterFactory implementation, added it to META-INF/services in file org.opengis.filter.FilterFactory. Added Interface extending Filter. Added implementation of this Interface. ...
0
votes
0answers
18 views

Relationship between fields, using domains and subtypes [duplicate]

I am looking for a way to make some kind of filter within a attribute table for added data. There reason for this is so that any user of the database can fill in information, but is "guided" for ...
2
votes
0answers
52 views

LIKE operator is not case-sensitive in Filter query for shapefiles (QGIS 3.4) [closed]

When I try to filter local shapefile with Query Builder (right-click on layer > Filter) using LIKE operator (which should be case-sensitive) it does not work properly. For example query "place_name" ...
0
votes
1answer
95 views

Specifying join on multiple datasets in a WFS URL request (CQL/Filter)?

I’m using a WFS and trying to join two/three datasets together in a URL query. Two of the datasets are linked via an aspatial table in the middle like so: | Table 1 | | Table 2 | ...
2
votes
1answer
1k views

Combine multiple dynamic Leaflet filters

I'm very new to Leaflet and made a map using a GeoJSON Layer. I'd like to filter points from the GeoJSON Layer by a checkbox input. If I consider only one Parameter (Par1) with levels A, B and C I can ...
5
votes
1answer
1k views

Filtering 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": { ...
0
votes
1answer
284 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 ...
0
votes
0answers
32 views

Low-pass filtering raster with a mask - matrix

I have to do low-pass filtering with a mask - matrix: 1 2 1 2 4 2 1 2 1 This is my code import arcpy import numpy as np arcpy.env.workspace = r"C:\Users\ASUS\Documents\ArcGIS\Default.gdb" raster = ...
1
vote
2answers
1k views

Using custom filters (server side) for OpenLayers Vector Layer

I have a vector layer in openlayers with source in GEOJSON (custom php server, which I have in complete control) and BBOX strategy. Vector points contain point sources which have different attributes....
0
votes
1answer
112 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....
1
vote
1answer
37 views

Count max number of pixels for image in GEE and then calculte numbers from this number

I have a code that creates image collection and then calculate what is the biggest number of pixels in image (e.g the image with maximum spatial data). I managed to calculte this number and to use it ...
1
vote
1answer
32 views

Problem with SLD Style definition - Filters in Rules

I created a style in QGIS, exported in SLD and imported in geoserver. However validating throws me errors. I tried a lot of variants according to geoserver documentation and stackexchange solutions ...
1
vote
1answer
68 views

Using 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
1answer
67 views

Datefilter in leaflet.js

How do I filter data by date. If I want to filter, I can see the old filtering too. The layers are stacked on top of each other. How do I get the current date range. <div id="time-ranges" class="...
0
votes
1answer
89 views

Purpose of filterEl.addEventListener('keyup', function(e)

I'm learning the mapbox gl js examples and have trouble understanding a function. The function can be found here https://www.mapbox.com/mapbox-gl-js/example/filter-features-within-map-view/ it's in ...

1
2 3 4 5
9