A characteristic of an object (person, thing, etc.). In the GIS field, it is used to refer to the non-spatial data associated with a location or geometry

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2
votes
1answer
132 views

Plot attribute of shapefile with R

Does anybody know how to plot any attribute of a shapefile with R? For example, like this.
2
votes
1answer
33 views

QGIS, displaying attribute values over geographies

Is there a way to use graduated symbols that display a value off the attribute table? For example, I have a map of Vermont towns, and I would like to have an industry code floating above each town (I ...
2
votes
0answers
68 views

Reading feature class attributes with or without quotes in ArcPy?

I'm working on a script that clips a batch of feature classes by a selection made in another feature class. The way it works is by reading the clip feature fields, then allowing the user to select the ...
4
votes
1answer
81 views

Combining 2 different symbologies in QGIS

I've got a layer (road axis) with 2 different attributes : one with the amount of trafic, another with the number of people living next to this road. As symbology for the trafic amount, I like use ...
0
votes
1answer
151 views

When aggregating points by polygons with sp::over function, how do I include attribute data from both the points and polygons? [duplicate]

Data: Zipped ea.ml1 shapefile can be found here, and the country outline can be downloaded here at the GADM site. I've been using the Ethiopia ESRI shapefile. Branch locations are here. I have a ...
1
vote
1answer
54 views

Selecting Minimum values from in_memory dataset!

I am trying to select the minimum value from a data set being stored in the in_memory workspace. This prevents me from using sub-queries. I'm hoping that someone has found a work around for this issue ...
3
votes
1answer
116 views

Updating feature attribute in QGIS plugin?

I am writing a plugin for QGIS (v2.12). There have been quite a few similar questions on this forum, but they don't seem to work for me. my plugin does the following: get the vector layer check ...
4
votes
2answers
221 views

How to remove unwanted columns from a polygon in R AND keep the result as a spatial data frame?

To simplify my problem, I'm gonna start at the source instead of explaining my full-map problem. I have a shapefile of Ethiopia pulled from GADM (can be downloaded here). A lot of the attribute ...
3
votes
1answer
59 views

How do I retain all attribute data when clipping two polygons in R? [duplicate]

I would first like to say that my question is very much similar to this answered one, but the proposed solutions don't seem to be working for me. I think that my question is slightly different, as I'm ...
2
votes
1answer
31 views

Default attribute when merging two polygons in ArcMap?

When merging two polygons in ArcMap 10.3, it appears that the new polygon always inherits the attributes of the larger (by area) of the two input polygons, unless otherwise specified. Is this by ...
1
vote
0answers
24 views

How to manage unique ID's for altered polygon

I'm working with administrative boundary polygons and am wondering when to keep the existing unique ID, and when to assign a new unique ID to a polygon. For example, if District A merges with District ...
1
vote
1answer
189 views

How to get sum / total length of lines per polygon in QGIS?

I have a line vector layer which has multiple segments within individual polygons in a separate polygon layer. I have spatially joined the attributes so that each line segment now has the same ID as ...
1
vote
0answers
44 views

Using Python Opensource Libraries to check users who visited a store [closed]

I have a few files with location information: 1) User Lat Long Pings in Parquet Files (can be converted to CSV) format - this contains userid, timestamp, lat and lon 2) US County/State Shapefile 3) ...
5
votes
2answers
77 views

Is it possible to merge attributes from lines which are on top of each other?

I was able to merge the different kinds of roads (verharding lijn) with the normal roadmap (Wegen 1.0). The attributes were copied to all the records, but there are empty attributes where the kind of ...
3
votes
0answers
48 views

Displaying attribute values in IntraMaps Roam?

I am having troubles with displaying attribute values in IntraMaps Roam. Let me give you more details: My QGIS project is based on an SQLite database The attribute table in QGIS is displaying the ...
4
votes
2answers
76 views

column data to shapefiles

I'm using QGIS 2.8 and am trying to take a shape file that has multiple column data and display that as individual shapes. For example...I have a soil test data table that includes pH, P, K, Fe, Zn ...
1
vote
1answer
100 views

Change attributes values?

i want to change attributes values in a memory layer. I already asked a similar question but i'm re-stuck on the problem and don't find any solution to this basic need. Here is what i'm doing so far ...
1
vote
1answer
35 views

Multiple attributes - is it possible to do variation by shape?

I am making a map of winter coat color for several species. I have two fields: species name and winter coat color. The latter can be either white or brown, and I would like to code, say, brown winter ...
0
votes
1answer
57 views

How to subset data for whole county to just portion in particular city using ArcGIS for Desktop?

I have a shapefile of all of Riverside County. It includes parcels with and without site addresses. I do not have a city limits shapefile. How can I locate the boundary of the city that I need to pull,...
1
vote
1answer
51 views

Capitalizing The First Letter Of Each Word In Attribute Field QGIS

I have tried capitalizing the first letter of each string in my field/column called "COMMUNITY" by referencing this post: Capitalizing The First Letter Of Each Word In Attribute Field Particularly: ...
6
votes
4answers
860 views

Create interactive maps in R

I am a R user and quite new in GIS. From Adding Attribute data to shapefile? I know how to add/edit attribute data (say population) to shapefile using R. Now, I have some shapefiles with attribute ...
1
vote
0answers
18 views

Number a subset of entries based on current sorting

Is there a way to number a subset of entries in the attribute table based on the current sorting in Qgis? e.g. select all entries with attribute X, sort them by abttribute Y, create a new column and ...
0
votes
0answers
29 views

Annotation Conversion from into .shp file with appropriate Fonts Format in attribute table

My Drawing file (.dwg file) is contained with Annotation with Gujarati Text in many type of fonts(eg. Gujarati Saral, Nilkanth, Shruti...). After Conversion of Annotation to .shp file, Attributes are ...
3
votes
1answer
168 views

Calculate new field from existing fields using expression in gdal/ogr and append to shapefile

I'm trying to calculate a new field from existing fields based on a simple expression for a set of polygons in GDAL/OGR. The expression is basically: new field = (field 1 / field 2) * field 3 ...
2
votes
0answers
30 views

Clip raster to new column in feature? [closed]

I'm trying to clip a raster using a feature set. I'd like to then have a new value added to a column in attribute table of the feature set based on the majority of the pixels in the raster. In this ...
2
votes
1answer
35 views

How to display street names from OS StreetAny layer?

Using QGIS version 2.10.1-Pisa. I have imported layers from an Ordnance Survey data set. I have a layer called 'Street any' which gives me the boundaries of the streets which I can see. I can see ...
3
votes
1answer
110 views

QGIS 2.10.1 Copy and Paste Problem - Attributes not showing

I have two shp layers with different numbers of fields and slightly different attributes of those field, like the column name or field length. I arranged them so they are in the same order and now ...
1
vote
0answers
71 views

Attributing polygon features with names of polylines they contain using ArcGIS for Desktop? [closed]

I have a few thousand polylines that represent streams and each of the streams has a corresponding watershed polygon. Streams have "Stream Name" attribute. I needed to attribute polygons (watersheds) ...
1
vote
1answer
68 views

Transfering raster attributes to a shapefile

I am using Arc GIS 10.2. I have a raster layer and a shapefile layer. I would like to transfer the attributes of the raster layer to the shapefile layer using a majority rule. The raster layer is a ...
1
vote
1answer
22 views

Creating layer where more attributes are presented

I would like to create a layer in ArcGIS containing polylines, that are rendered by combination of more than one attribute. I can create layer where the polylines are of different thickness or ...
1
vote
1answer
59 views

QGIS information by clicking on a point?

How is it possible to open a window by clicking on a point of a point shapefile? This window should display particular attributes of the attribute table and, if somehow possible, geotagged photos. Is ...
3
votes
1answer
121 views

Is there are way to import non-geo JSON files into QGIS?

Here is a json file containing various attributes relating to countries. However, it does not contain any geographic data. http://bost.ocks.org/mike/nations/nations.json I would like to join these ...
2
votes
1answer
431 views

How do I show only the selected features from an attribute table on a layer?

One of the layers has around 5000 attribute entries, based on a CSV file of species records. All the features are of course shown on the map layer. How can I select a specific class of features so ...
2
votes
1answer
37 views

QGIS: How to scale attributes when clipping / intersecting

I'm working on a project involving a ratio of frequent travellers / population divided in Forward Sortation Areas from Canada Post (FSAs are the first three characters of a postal code: A1A). I ...
2
votes
1answer
180 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
37 views

Assigning attribute values to map of city based on location picked? [closed]

I have a city map in arc GIS, with each parcel having it's own parcel number as an attribute in addition to other attributes. I need to create a second layer of the same map and add data to it based ...
1
vote
1answer
111 views

How to get features by attribute using PyQgis?

How can I get a feature's geometry from selection by attribute. For instance from a point layer I want to get the geometry by the field CODICE filter (CODICE = A001). I tried with: layer = ...
0
votes
2answers
21 views

Editing imported attributes in ArcGIS for Desktop?

I have finally completed my first ArcGIS-task, creating a shapefile containing poligons which mark designated spaces as well as installed facilities. The more than 450 facilities have a whole lot of ...
2
votes
1answer
49 views

(openlayers) Adding styled polygons from predefined toolbar?

I'm looking for a solution where I could easily add differently styled polygons to a map? Styles should be as "options" so that user can select e.g. blue or yellow polygon. What different options ...
-1
votes
1answer
47 views

Out of three different fields find the nearest value of X

I have 4 Fields. FFE, year10, year50, year100 I created a 5th field and labeled it - CP I need help writing a python script in field calculator to fill the column CP with whatever FFE is closest to ...
1
vote
1answer
144 views

Cut line with polygons?

How do I cut a single line with polygons (in several segments) so that each cut line take data from the polygons? Something like a centroid takes.
1
vote
1answer
194 views

Group attribute tables values for use with conditionals - Python

I would like to group values in a field in an attribute table. The field contains duplicate values. These duplicate values should be grouped based on duplicate values, the field would look something ...
1
vote
1answer
37 views

Using PostGIS Intersection to carry fields from input layers into output layer

I'm having trouble carrying over the attributes from the input layers in my PostGIS intersection below: CREATE TABLE intersection_output AS (SELECT ST_Intersection(a.the_geom, b.the_geom) FROM ...
0
votes
1answer
78 views

How to get FID recognised by GeoServer?

I'm trying to load a shapefile into a GeoServer that has a style defined which makes use of the FID attribute: <PolygonSymbolizer> <Fill> <CssParameter name="fill"...
0
votes
1answer
63 views

ArcGIS Server JavaScript: copy attribute from feature snapped to

I have an application that allows the user to add a point (in this case, pipe breaks) and snap to a line (water main). I have been asked to pre-populate one of the attributes in the point feature ...
1
vote
1answer
88 views

Unable to update some of the attributes using PyQGIS

I'm trying to create new attribute and populate it, but for unknown reason some of the features does not update while others are updated normally. # scores - list of values which length is equal to ...
0
votes
0answers
81 views

Selecting all cells not containing a number in SQL

I have a field containing some values. In edit mode, when I click on any one of these values it gets replaced by 1.#QNAN in the cell. I would like to query the table for all cells containing 1.#...
3
votes
1answer
44 views

Label can't access added attribute

I have a layer that gets created with a couple of attributes, one of which is NAME. Then I create a LabelLayer and add a feature layer like so: layerLabel.addFeatureLayer(layerDisplay, rendererLbl, ...
0
votes
0answers
77 views

GeoTools How to add attribute to a schema in DataStore

As you know, you can create a schema in a DataStore. For example, you may create a table in a postgresql database like this: SimpleFeatureType schema = ...;// some schema DataStore dataStore = ...;/...
1
vote
1answer
461 views

Functionality of Attribute Assistant and ArcGIS Online

We are an EGIS group using Arc Desktop 10.3.1 and ArcGIS Online as well as the collector app. With ArcDesktop we use the ArcGIS Local Govt Attribute Assistant We are seeking to allow users to enter ...