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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0
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0answers
10 views

Provider feature filter causes QGIS rendering to stop

I'm running QGIS 2.14.0 Essen on OSX 10.11.5. I would like to create a simple thematic map showing a subset of points over a basemap with state and county boundaries. I used an IN query in the '...
0
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1answer
50 views

Filtering parameters in ArcPy Python script tool avoid repeating selecting same value in sequence parameters?

I am trying to make a tool in which there are many sequence parameters (based on the same field of a feature class), and each of them is multi value to make a user choose from a check a list one or ...
1
vote
1answer
28 views

Filter geoserver layers based on postgis geometry

I am wondering how, and if it is possible, to filter a geoserver's layer (from a large shapefile) on a specific geometry coming from a postgis table. I have a huge shapefile for a country. I'd like ...
4
votes
1answer
35 views

Filter a range number in Query Builder of QGIS 2.8.6

I need to filter features that have attributes that start within a relative number range. I am using brackets to filter the range of numbers, but it does not work me. This is my query: CASE WHEN "...
2
votes
0answers
45 views

Between operator QGIS

I am using QGIS Essen version (2.14.1). I am trying to filter my data based on dates. I am wondering if the "between" operator exists like in SQL? I'm trying the following query but the results are ...
4
votes
1answer
37 views

How can I optimize layer filtering using setSubsetString or QgsFeatureRequest().setFilterFids(my_indexes)

i'm developping a plugin (under QGis 2.8.1) for traffic assignment where I want to show the results of my simulation at each time step. Right now I'm using Time Manager plugin but it gets very slow ...
3
votes
1answer
43 views

Empty a layer for each QGIS project

I have a layer with a customized form. Dropdowns, checkboxes, etc. in a QGIS project which is kind of a template. This QGIS project will be copied and pasted every time a new study has to be done (...
2
votes
1answer
60 views

Filter spatialite layer with 'not equal' in QGIS

I tried to filter my spatialite layer with the "SPECIES" IS NOT NULL OR "SPECIES" != 'Corvus corax' expression, but the result contains the lines where "FAJ" field is 'Corvus corax' (the NULL value ...
5
votes
2answers
197 views

WFS Intersect Filter using a Polygon returns all features in Layer

I am having trouble using 'Intersect' filter on a WFS GetFeature query. Every query I make seems to return all features available in the queried layer (and not just the features intersecting the ...
2
votes
1answer
61 views

QGIS filter on date value

I would like to filter on a date value (show only attributes with a date later than 1-1-2000 for example). The field is of QDate type. But doing so I get the message: "Type mismatch or improper type ...
0
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0answers
14 views

what is “param” exactly in filterToParams in OpenLayers?

I don't exactly get the way to use filterToParams in OpenLayers 2. I get the data via HTTP-Protocol, format gml, but when I check the params in firebug, it does not contain anything. So I've tried to ...
1
vote
1answer
34 views

5x5 raster filter in ArcGIS?

Normally, I am using the 3x3 lowpass filter if I need to filter a DEM. However in one case, for better results in curvature calculations, I would like to do a 5x5 filtering. How is this possible in ...
0
votes
0answers
11 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 "...
2
votes
1answer
74 views

Filter the Feature Layer parameter in Python Script Tool

I have a Python script tool where I have a parameter of type Feature Layer because I want to have the already opened layers as a dropdown list. I was wondering if there is a way to filter this ...
1
vote
0answers
27 views

Using OSMFilter to filter for the lack of a tag

I am looking into filtering the OSM data for lakes, using OSMFilter. Lakes can be defined by the combination of tags natural=water water=lake However, another definition would be only natural=...
1
vote
1answer
102 views

Mapbox personalized icons with cluster and filter checkbox

I have created a map using mapbox. I add icons from an Url and a type of "filter". But I want to add a marker cluster and in and also that the filter function with checkbox to select more than one ...
2
votes
1answer
17 views

WFS Filter performed before or after reprojection?

I'm trying to perform a WFS filter with a polygon in EPSG:3031, (the native projection is EPSG:4326 I think). And I'm aware that WFS/GeoServer supports reprojection on the fly. But will the features ...
4
votes
0answers
53 views

QGIS Atlas: Filter maps based on attributes (more than one)?

I have a series of maps with the same geographic boundaries but with different set of points (from the same layer). I would like to create an Atlas where the change is based on the attributes. A ...
0
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0answers
73 views

GeoServer SLD Filter rule before PointStacker transformation

I'm trying to apply a filter rule in an SLD, before applying the GeoServer PointStacker transformation (which groups points that are too close to distinguish their icons). This transformation is ...
1
vote
1answer
32 views

Geoserver CSS style for PropertyIsLike

I am trying to convert sld to css style. The below code is have written sld style for filter a word using PropertyIsLike <ogc:Filter> <ogc:PropertyIsLike wildCard="%" singleChar="_" ...
1
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0answers
23 views

Filter GPS tracks to determine “Moving Time”

I am working with GPS tracks of outdoor activities, think cycling, running, hiking. These activities often have "rest periods" where people take a break, wait at traffic lights, or just stopped their ...
1
vote
1answer
101 views

Filter App Template - ArcGIS Online

I would like to use the Filter App Template for an ArcGIS Online Map I'm creating. I'm working with a water system, and I want the user to be able to use the filters to search for certain junction ...
4
votes
2answers
330 views

Reconstructing MODIS time-series applying Savitzky-Golay Filter with Python/Numpy

I want to apply the 'Savitzky-Golay' (savgol) filter to my time series, MODIS dataset, to remove noise (i.e., cloud pixels, etc.) in my data. MODIS have quality flags that indicates the reliability of ...
3
votes
0answers
193 views

Queen vs Rook neighborhood

Queen and rook neighborhoods are two common ways to calculate statistics for a focal cell. They are also known an Moore and (von) Neumann neighborhoods. I think a "bishop version", i.e. from lower ...
1
vote
1answer
48 views

QGIS points filter

I'd like to use the points filter tool in the QGIS processing toolbox to remove errant gps points from data i'm looking at. I've had limited success playing with it and I was hoping someone who is ...
3
votes
2answers
50 views

Filtering information in two attribute tables using QGIS?

I'm an amateur in QGIS so please forgive me for not using the correct definitions. I have a polygon map (shape file) with the neighborhoods of my city. Each one of this neighborhoods has it's own ...
3
votes
2answers
79 views

Copy/convert selection into filter/query builder of QGIS?

Can anyone tell me if it is possible (and how) to convert or copy a selection on a layer (that has not been created through "select by expression", but instead by irregular selections from a canvas, ...
2
votes
1answer
67 views

How to find records using a distance filter, in a table of Points?

My table fields are: POSIC (id, geom, dt_inclusion). DB is PostGIS. Data comes from a GPS Source, then i can create a route ordening the points by Date_Inclusion. So, lets say i have registries A,B,C ...
1
vote
0answers
19 views

GeoTools FeatureCollection to Filter (make Filter from a FeatureCollection)

I have a FeatureCollection and I want to make a Filter of them. One way is that I may use FilterFactory#id(Set<Identifier> set) to make a filter. FilterFactory ff = CommonFactoryFinder....
0
votes
0answers
19 views

Qgis_mapserv filter

direct url like these http://localhost/qgis/qgis_mapserv.fcgi.exe?SERVICE=WMS&VERSION=1.3.0&SRS=EPSG:4326&REQUEST=GetMap&map=c:/gis/test.qgs&BBOX=14.542273,45.171945,14.543841,45....
2
votes
0answers
28 views

Filter features based on attribute percentage threshold [duplicate]

I have a layer (vector layer imported from a Shapefile) in QGIS 2.8.3 with a bunch of features with a single numerical attribute, 'level'. I would like to filter the features with a threshold that is ...
1
vote
0answers
64 views

Analyzing date and time in ArcGIS for Desktop? [closed]

I am have a Date/time field (MM/DD/YYYY hh:mm:ss format) in ArcMap 10.2.2 that I want to filter through and show the specific hour periods for accidents. The end result needs to help to show the ...
2
votes
1answer
51 views

QGIS table does not dynamically update after applying a filter

Using QGIS 2.10.1, if I open a table and then apply a filter using Layer Properties > General > Provider Feature Filter, the table view does not update. In other words, the initial list of records ...
0
votes
0answers
76 views

WFS query against SQL Server - Returned results not restricted by query

I have an SQL Server 2012 table, which contains a DbGeometry column with a spatial index. Then a Geoserver 2.7 using it. The problem is that when I do a WFS query it doesn't restrict the results to ...
2
votes
1answer
177 views

ArcGIS Operations Dashboard: Is there a way to create a widget which counts the occurrence of a text attribute?

I am using Operations Dashboard of ArcGIS and I would like to add a widget which count the occurrence of a text value "DAMAGED" in a field ("STATE"). I only found the way to access numeric attributes, ...
0
votes
1answer
41 views

PDAL removes color attribute from point cloud

I am trying pdal to perform a ground filtering on a point cloud (las file) with colors. I use the pcl option and this tutorial Identifying ground returns using ProgressiveMorphologicalFilter ...
0
votes
1answer
59 views

How to use SpatialOperator in filter expression in QGIS

In a python script I want to specify a request filter expression using a spatial operator. I am following the general syntax "field name" operator condition. For example: setFilterExpression('$...
-1
votes
1answer
289 views

How to filter polygons in Leaflet using range slider

I have a map I'm working on with Leaflet that displays a choropleth of zip code-level data. One piece of functionality I would like to add is to allow users to use a range slider to filter out ...
2
votes
1answer
157 views

How to use spatial filter in PyQGIS?

I have a buffer and need to filter a multipoint layer (QGSVectorLayer) so that I would get only features intersecting the buffer. What I've found: a) setFilterRect() This doesn't accept polygon ...
2
votes
0answers
46 views

Are there methods of filtering gps-data with metadata?

In our project we captured GPS-tracks from a few electric vehicles in the timeframe of a year. In total we captured around 13000000 GPS-points this way. The captured data comes from electric powered ...
3
votes
2answers
218 views

Limiting list values based on previous field in QGIS Forms?

Looking for assistance to set up appropriate configuration to enable drop-down lists values to be filtered based on a previous value. Basically, I have a 3-tiered categorisation structure to one of ...
1
vote
2answers
133 views

How to request paginated or filtered data from WFS 2.0?

I want to download a data set from a WFS 2.0 server via HTTP GET, with curl for instance. $ curl -X GET http://example.com/wfs/?service=WFS&request=GetFeature &version=2.0.0&typeNames=...
0
votes
1answer
91 views

How to find out if a WFS instance supports filtering via CQL?

I am considering using Common Query Language (CQL) to add filter parameter to a HTTP curl query which runs against a WFS server. I found out that GeoServer supports CQL via WFS. Can I tell from a ...
1
vote
0answers
53 views

How to 'filter' a district by clicking on it in Leaflet?

I have created a basic layer of districts on a background google streetmap on QGIS. Using the qgis2leaflet plug in, I'm able to render a webpage of the same. I want the web product to be such that ...
1
vote
0answers
388 views

Filter geoJSON layer after it has been loaded

I'm declaring and defining a geoJSON layer first, like: var layer1 = L.geoJson(null, { onEachFeature: function(feature, layer) { ... } }); ..and then loading a CSV into it, like: omnivore....
2
votes
1answer
56 views

Deleting only specific LiDAR points in QTM with Mensuration tool

I'm using Quick Terrain Modeler (QTM) 64-bit v8.0.3.4 - I have a set of LiDAR data that has some points that I want to delete, but due to their location it is hard (if not impossible) to delete them ...
1
vote
1answer
138 views

jquery range slider to filter geoserver layer attribute

i would like to apply with jquery range slider a filter to an attribute of a geoserver layer. I prepared the code for the shape topp:state, attribute PERSONS. How is it possible filter the PERSONS ...
3
votes
1answer
187 views

How do you classify unclassified pixels in a land cover geotiff tile?

While printing out the raw pixel values of a GEOTIFF land cover tile I found 90 % of pixels have normal values i.e. those that the documentation describes (8 bit integers describing a land cover type)....
0
votes
1answer
94 views

Filter (no display) layers in GeoExt.LegendPanel with names LIKE some pattern

This works to avoid Basemap layers such as Google Maps and overlays such as WMS to appear in the GeoExt Legend Panel: var legendPanel = new GeoExt.LegendPanel({ border: false, filter: ...