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Questions tagged [features]

Use this tag when asking questions about a representation of a real-world objects on a map.

2
votes
0answers
22 views

Create filter expression by selected elements?

Is it possible to automatically create a filter expression for the Query Builder by selected elements?
0
votes
0answers
12 views

ArcGIS not properly tracing a shapefile's polyline feature

I am working with the Street Network Database shapefile from the City of Seattle, in ArcMap 10.6.1. I attempted to use ArcMap's trace function on the polyline representing Rainier Avenue South. ...
0
votes
0answers
11 views

Removing labels for deleted point features in ArcGIS Pro?

I am new to ArcGIS pro. I have a number of points on a map that have been inputted into ArcPro from a KML file. I have deleted some of the points as they aren't required but the labels for the deleted ...
0
votes
1answer
23 views

Find index of Linestring element at feature, when hovering - openlayers/GeoJson

I have a Geo-JSON Linestring, this is drawn by 800 elements in OpenLayers 4.6.5. I'am trying to use the map.forEachFeatureAtPixel, and print a pop-up when hovering for individual elements on the ...
4
votes
2answers
245 views

Is there a maximum number of features that QGIS can save into a shapefile?

I have a very large .gdb that I want to reduce to my study area. Unfortunately, the study area is still quite big. I could select features that intersected my study area but when I tried Export > ...
0
votes
1answer
43 views

NDVI time series based on UI selected features

I am trying to create drop downs that will select features from a feature collection, and have each newly selected feature drawn on the map. I want to have three selectable variables then calculate ...
0
votes
1answer
23 views

How can I add a featureCollection to another one to export into one sigle .csv file?

Sorry if this is an silly question, as I am starting to work with GEE. I am iterating (mapping) over a Sentinel-2 image collection, using different coordinates and dates in each step. My goal is to ...
1
vote
1answer
63 views

Highlighting selected geojson feature and return to previous state when another one is selected using Leaflet?

I've a map with a geojson layer containing markers, polygons and lines. I made a module so that when a feature is clicked, its properties are displayed in a frame and not in standard Leaflet popup. ...
2
votes
1answer
165 views

What does this symbol mean?

I have just used the shape tool to create an elliptical buffer around a point. However after doing this, within my layers table I have the symbol seen within the figure below (seen in red box). Note, ...
1
vote
2answers
91 views

Leaflet - How to show feature properties in a box that is not a popup?

Popup giving features properties are interesting but I would like to make a side bar where properties of a clicked feature would show. I've got the traditional code for displaying geojson features ...
0
votes
1answer
30 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 "...
-2
votes
1answer
36 views

Filter four features from a vector shapefile to create a new layer to perform buffer, intersection and union on it, in QGIS 2.18?

From a dataset that contains points of interest defined by type of object with four different features, I am trying to distinguish the features to perform different analysis. Thought I had to filter ...
2
votes
1answer
48 views

Running into endless loop when adding feature to layer with pyqgis

I am working on a script where I want the user to add feature to a layer in edit mode, and then decide whether to keep the newly added feature in the layer or not. I am doing it the following way: ...
0
votes
0answers
62 views

Selecting touching features using QGIS? [duplicate]

There are several ways to select features in QGIS (by rectangle, radius, polygon and expression) but is it also possible to select features, which touches one selected feature? For example: In a ...
1
vote
1answer
196 views

Create time series for multi-polygon Google Earth Engine

I have a imported a KML as fusion table to GEE. This fusion table is type of FeatureCollection and contains 6 elements. I would like to create a time series of a raster (in this example MODIS LST), ...
0
votes
1answer
39 views

Feature stroke is not updated

I'm changing the stroke color of my features when they are selected like follows: var select = new Select({ condition: click }); select.on('select', function (e) { e.selected.forEach(...
0
votes
1answer
35 views

Comparing each geometry of shapefile with all geometries of another shapefile using ArcPy?

I want to compare each polygon from one shapefile with all the polygons from another shapefile. When one polygon is geometrically identical to a polygon on the other shapefile, I want to copy the ...
0
votes
0answers
39 views

Split Polygon to match length of lines with QGIS

I have a large polygon shapefile with many features (green), representing waterbody outlines, and a line shapefile (brown) representing river sections. I now want to split the polygon features into ...
0
votes
1answer
96 views

Compute convex hull of points in a feature collection

I uploaded an asset (which was originally a shapefile of points) and imported it into my script as a feature collection. I would like to compute the convex hull of the points, but it seems this ...
2
votes
1answer
79 views

Why QgsFeature.geometry() returns an empty geometry in PyQGIS?

I am a new for QGIS, working in Python. I add a buildings(.shp) vector layer into QGIS, just like this: I'd like to get the geometrys of some features, then I can do analysis on the center point. ...
1
vote
1answer
39 views

Clipping a road layer by using region attributes

I've been trying to clip a road layer into several layers by using region polygons. So in detail: I've got a layer with all roads of Germany and a second layer with all states and regions of Germany. ...
1
vote
0answers
16 views

QGis Python featurerequest with lists

I want to select some features and do some actions to this selected features. Something like if attribute in field a is = abc than do something. But the selection will not fit. As written in https://...
0
votes
1answer
163 views

Add a polygon programmatically in OpenLayers 3?

I added a point like this and it works fine, but for polygon it's not working. var iconFeature = new ol.Feature({ geometry: new ol.geom.Point([8637791.36, 1456487.82]), name: '...
1
vote
3answers
394 views

Copy/Paste Layer with Attribute table to new Layer using ArcGIS Pro?

When I copy features from one layer in ArcGIS Pro to a blank layer, the polygons are transferred, but the attribute table behind those features is not transferred. To give a specific example, I ...
2
votes
0answers
56 views

Reverse geocoding geographic features

I have a growing database of routes. Each route is represented by a polyline with say 200 points on average. What I'm trying to achieve is automatic tagging of these routes with names of places and ...
0
votes
2answers
245 views

How to export a feature collection of feature collections in Google Earth Engine?

I have extracted NDVI values from Landsat 8 images to a shapefile of points 90 meters apart. I am trying to get these point files back into ArcGIS and R, but they are too big to print to the console. ...
1
vote
2answers
70 views

Select columns to keep from attribute table [closed]

I have lots of feature classes that I'm working with, but the attribute tables are really messy because I got the information from different sources. So I decided to clean them up. I made a table ...
-2
votes
2answers
41 views

Rename Features with IF/Else

I used arcpy.describe to get the shapetype of my features: desc = arcpy.Describe(Importpfad) geometryType = desc.shapeType Now i want to add this information at the end of the feature name. It also ...
0
votes
0answers
80 views

How to create sector polygon for a given point feature at a given radius (1000 Km), and direction using ArcPy code?

I want to create polygons of sector shape for many point features. Each sector has central angle of 90 degrees and radius of 1000 Km. How can I create it using ArcPy code? Here is my approach that I ...
0
votes
1answer
322 views

OpenLayers 4 VectorLayer Feature setStyle makes features disappear

After I have already displayed my map I want to highlight certain features. For starters I am trying to highlight all features like this: public highlightMapFeatures() { this.map.getLayers()....
1
vote
0answers
40 views

Splitting feature into fixed measurements

For my thesis I'm trying to split featuring in QGis into multiple new features of a fixed size (5.5 by 2 meters). I think it would be the equivalent of ArcGIS' Parcel Division tool, but unfortunately ...
1
vote
1answer
118 views

Feature merging in QGIS? [closed]

I want to merge these two features into one (N.B: One polygon shapefile, lots of features). But an error occurred. Any possible solution please? QGIS version: 2.14.20
1
vote
3answers
289 views

Creating a source and a layer from vector tile features in Openlayers

So I retrieve all my features from a vectorTile layer (PBF from Geoserver), and now I want to recreate a layer by filtering on those features and getting only those that satisfy a request. I ...
1
vote
0answers
75 views

Customizing identify form in QGIS?

Is it possible to customize the identify form in QGIS (I am using version 3) to create Balloon like windows and add a picture in addition to the features extracted from the table?
1
vote
1answer
63 views

Exporting tiled raster assets within mask feature selection?

I'm familiar with a method of exporting everything within a selected feature within Global Mapper using - Export > Export Raster/Image Format. This takes everything within that feature and exports to ...
0
votes
0answers
67 views

OpenLayers receive all feature data from Vector (WFS)

I would like to display a Diagram for the data that is received via a WFS. As this data is already displayed on the map, a second request is not necessary. Normally I receive the underlying data on a ...
1
vote
1answer
87 views

SimpleFeatureType.getCoordinateReferenceSystem() == null after building type

I tried to build new type, but SimpleFeatureType.getCoordinateReferenceSystem() returns null //create polygon GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory( ); ...
0
votes
0answers
37 views

Feature not shown in map after update using WFST in ol3

I am trying to update feature to geoserver using WFST ol3. I could successfully able to update feature information to geoserver, but after the update, if i refresh the application, the updated feature ...
1
vote
2answers
85 views

How to check whether a feature has been split in GeoTools?

In my program I am looking for a best place for a golf course. Three of the conditions are: The course must be on a hill, it must be at least 100 meters away from roads and must not be larger than ...
0
votes
1answer
290 views

Select Feature button greyed out?

I am a new user of QGIS 3.0.2. Simply trying to select a specific land parcel using a GeoNB layer, also will need to select other features obviously in the future. My "Select Features" button is ...
0
votes
1answer
74 views

Point from FeatureSet as Input to Python script tool?

I'm looking to use a point on the map provided through a FeatureSet as an input to both a buffer and Select by Location. I have created the geoprocessing tool that works, but am having difficulty with ...
0
votes
1answer
25 views

Drawin a feature on my map

This is my code but it doesn't show anything... var vectorSource = new ol.source.Vector({}); var map = new ol.Map({ layers: [ new ol.layer.Tile({ source: new ol.source.OSM() ...
0
votes
1answer
43 views

Issue with speed of adding new features to a layer

I have a list of features that I would like to add to a layer. The features are built from a list of objects that contain a number of attributes as well as a set of coordinates. var lines = data; //...
2
votes
0answers
203 views

I keep getting the “Paste Features Failed.” dialog when trying to copy/paste point features in a layer in ArcGIS pro

I have a "plant_species" point feature class, and after a period of time working with the layer, the ability to copy/paste an individual plant_species feature from within the map frame no longer works....
1
vote
1answer
37 views

Saving Shapefile - Zero Features Error

I am using QGIS 3.02. I opened a GDB file in QGIS and saved it as a shapefile in EPSG: 4326. Now I want to save it in EPSG: 2264 but I am running into an issue. Every time I save it as EPSG: 2264 the ...
0
votes
0answers
39 views

Is there something like a “magnet lasso” while using the line feature in ArcMap?

I am just starting to learn ArcMap and just recently used the line feature for the first time. When I traced the border between a forest and a field, I was wondering whether there is something like a "...
13
votes
3answers
320 views

Distinguishing corridors from fragments in a habitat map

I was wondering if someone has delt with this kind of issue before: I want to delineate fragments based on neighboring pixels of the same class (forest) with a distance threshold of 3 pixels (which ...
0
votes
0answers
19 views

Importing acad into arcgis

We have a project using ArcGIS 10.1 and silverlight and this project allows for the upload of ACAD files onto existing layers via the project. This had been working for years now however early last ...
2
votes
1answer
272 views

Dynamically selecting t layer features implementing canvasMoveEvent of QgsMapToolIdentify class?

In my QGIS plugin I need to dynamically select features of a layer with the mouse move event. In Programatically check for mouse click in PyQGIS? the canvasMoveEvent of the QgsMapTool class is ...
1
vote
0answers
48 views

Keep legend item & feature count even when item does not appear in current Atlas feature

I would like to see all legend items irrespective of whether the item appears in the current Atlas feature. I have formatted the legend such that count of each item appears in brackets, next to the ...