A tabular set of data linked one-to-one to a set of spatial features.

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2
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1answer
848 views

Could not commit changes to layer X

I am editing a layer's (Z) attribute table. I made some columns, used the field calculator to fill them up, made some more, went back and deleted some and then tried to save the edits and got the ...
2
votes
2answers
191 views

“show only visible features” doesn't seem to work

I'm trying (unsuccesfully) to place the attribute table next to a map containing the same in print composer. Let's say for example my map in the primary window contains 6 districts and my map in the ...
2
votes
1answer
48 views

How to delete a bracket in the attribute table of QGIS?

I would like to delete a bracket ([]) in one column of my attribute table. I have different numbers in the column, written like this "[901], [555]..." How can I delete the bracket, withouth having to ...
2
votes
1answer
35 views

How to maintain data in attribute table when importing ASCII file to ArcMap

I am very new to using ArcGIS. I have an Excel sheet with data in it where each cell represents a grid from a model output and contains a value (eg. amount of precipitation in that grid cell from the ...
2
votes
1answer
53 views

How to create a unique identifier in the attribute table based on spatial location within another layer?

I am currently working in ArcGIS 10.2.2 for Desktop and would like to know if there is a workflow for creating a unique ID for polygons within a shapfile based on their location. I am using data ...
2
votes
2answers
139 views

How to add attribute table to new shapefile using OGR?

i have made a new shapefile from the original shapefile , and now i want to copy the attribute table from the original shapefile to the new select shapefile , but i don't know how to do that? import ...
2
votes
1answer
97 views

Determine the number of fields of a certain field type there are in an input feature class

So I am wondering how to get the number of field types "String" by creating a custom function? Can anybody point me in the right direction? I have a shapefile named streets and there are 73 field ...
2
votes
1answer
57 views

Calculate field using data from excel table

I need to interpolate data that I have in a excel file using data from an attribute table of a point feature. I want to create a new field on the attribute table with the result of that interpolation. ...
2
votes
1answer
472 views

ArcGIS Online related table not displaying correctly in popup

I have an ArcGIS Online Map composed of three spatial feature classes and a table. All three feature layers are related to the table and all the layers and table are housed within the same SDE. I ...
2
votes
1answer
254 views

PyQGIS: how to delete layer from TOC when attribute table is closed?

I'm developing plugin where I want to be able to edit non-spatial table inside the attribute table dialogue. As it seems that the only way to do so is to add this table to the TOC first, I do so. But ...
2
votes
1answer
199 views

Edit attribute table for shapefiles in folders and subfolders with arcpy?

Continuously to Merge shapefiles in folders and subfolders with arcpy I try to edit attribute table for 20 shapefiles that spread in big a folder and are divided to a lot of sub folders. All ...
2
votes
1answer
57 views

Converting character attribute to numeric attribute

I am following the very simple code found in this question Converting shapefile to raster: Character attributes to create a new numeric variable based on a factor. My proble is that the new numeric ...
2
votes
1answer
280 views

Filter query error in QGIS2.4 or 2.6

I get this error when undertaking in query in QGIS2.4 or QGIS2.6: An error occurred when executing the query. The data provider said: OGR[3] error 1: Unrecognised field name Fire....
2
votes
1answer
2k views

Cannot toggle ''edit'' of shapefile in QuantumGIS 1.8

My problem is as follows: I imported a number of shapefiles from a .gpx-file from a gps-device. Each shapefile contains a number of waypoints. For the study I am doing, I need to give all of them ...
2
votes
1answer
313 views

Populate field with current time

I am trying to populate a field with the current time. Here is what I tried that did not work: Start editing Open Attribute Table Add Field -> Name: time Type: Date Right Click on Field Name (...
2
votes
1answer
64 views

Why don't all the attributes in the SQL query appear in table?

I have an SQL query that works fine in the DB Manager but when I load the table as a layer one column does not get loaded. The different thing about this column is that it is static -- text generated ...
2
votes
1answer
253 views

How to do a “fuzzy” intersection?

I have two layers that look like this: I want the intersection (or whatever the correct term may be) to look like this where the output polygons are the same as the original base layer, just with ...
2
votes
1answer
428 views

Summarizing Table on 2 fields

I have a table of Census Blocks linked to ZIP4 values. I'm trying to create another table getting the unique ZIP4 values associated with each Census Block. I've tried using the Frequency, and Summary ...
2
votes
2answers
437 views

Auto fill second column with predefined names depending on first column (QGIS)

I want to create a point layer. In the attribute table I want to have two columns. In the first column I want to type an abbreviation like A. Then I want the second column to be auto filled with ...
2
votes
1answer
83 views

Expression to create and populate column based on filtered fields

I wanted to create a column and populate it with data based on data from other fields. If column_1 contains fields which has similar string (eg. field_1 = "Country: UK", field_2 = "Country: US", ...
2
votes
1answer
1k views

How to make autoIncrement number start with (001…009, 011…099)?

i have a challenge with my time in my work, i have feature class called "Parcel" storing many data, i generated an autoIncrement number by using field calculator, in field "parcel code" Expression: ...
2
votes
1answer
136 views

QGIS; Is it possible to show layer name in attribute table in print composer?

When adding attribute tables in the print composers it is not possible to distinguish between various tables from various layers; each table is generic and does not indicate which layer the table is ...
2
votes
2answers
267 views

Correctly calculating attribute table column in gvSIG

I am trying to conduct a multicriteria evaluation, and it is necessary to check the compatibility of two different land-use types that I have in seperate layers. I am working in gvSIG 1.12, and have a ...
2
votes
1answer
293 views

How to solve 'syntax error, unexpected LE' in QGIS query builder?

I have a very simple question about the advanced query builder in QGIS. I'd like to search for a range of numerical data values in the attribute table, but asking QGIS to show me values that are &...
2
votes
2answers
2k views

Why are edits in shapefile table not saved?

I have created a shapefile (point data) and wish to change some parameters in the files table data. I can edit the data and see the coresponding change in my my symbology. However, when I save the ...
2
votes
2answers
3k views

Add data from table into feature class

I have a feature class with mostly unpopulated fields (ArcMap Standard 10.1, in an SDE database, with attachments). I exported the attribute table as a .csv file so that a co-worker without access to ...
2
votes
2answers
786 views

Adding a new field to table in ArcCatalog

I have a command button in ArcMap, this command button working to add a new field to a specific table in ArcCatalog. e.g. i have a table contains many fields like ObjectID , FeatureName, ... i want ...
2
votes
1answer
4k views

How to find polygons centroids? [duplicate]

Possible Duplicate: Get list of coordinates for points in a layer? Sorry for another basic question - my map is almost done but now my boss wants me to enter new outbreaks (that we don't have ...
2
votes
2answers
41 views

Is it possible to update attribute from spatial join without creating new shapefile?

I have the following shapefiles: county.shp: polygons referring to country land subdivisions lake.shp: polygons referring to lakes, ponds, etc. Layers attributes are as follow: county.shp id ...
2
votes
1answer
37 views

Export data from “Identify Results” table to Attribute Table

I am working on a street network in QGIS. I needed to increase the resolution of the street segmentation in an area of my network, so I copied and paste this area from another layer. I selected all ...
2
votes
1answer
36 views

How to filter in the attribute table within an attribute name?

I have to create a map with the corridor information in it (in German: Flurstücke). For that, I have one shapefile with the lines and another shapefile (points) with the information about the corridor ...
2
votes
1answer
47 views

ModelBuilder Select Table?

I'm working on a project where I am building a tool to use. I have a large data set in a standalone table that has data for multiple years and multiple species. The first step in my tool is to make a ...
2
votes
1answer
53 views

What is the most efficient way to get a table or attribute table of a float raster?

I'm starting with a stretch point raster. Ultimately I want to get a mean value of values with larger zones and then rate the zonal mean stretching from 0-1 and output rank/zone to a table or layer ...
2
votes
2answers
36 views

Assigning column names dynamically

I have an interesting problem: I need to batchprocess a few files. I do that in a for-loop, where some operations are performed. Later on I want to write the outcome into an existing shapefile which ...
2
votes
1answer
32 views

Joining data from 2 shapefiles Qgis

I think there must be a atraight forward answer to this but I haven't managed yet: I have two shapefiles for the same watershed they are both divided into different areas with different erosion ...
2
votes
1answer
57 views

Creating definition query on layer excluding decimal values in ArcGIS for Desktop?

I am working on a layer of spot height in ArcGIS 10.3. The attribute table of this layer contains a field called 'Elevation' wich one provide the altitude of these spots height. These values can be ...
2
votes
3answers
201 views

How to calculate Statistics of an attribute field to use it in another calculation

I want the statistics of an attribute field to use in another calculation, i can view the statistics using the field properties menu I want these to normalised the data of field 'Ia' using the ...
2
votes
1answer
370 views

How to export from ArcMap to tab-delimited text file, while preserving formatting and values?

I'm working with a complicated fGDB featureclass which contains hundreds of fields, in a variety of text and numerical formats. This is proving difficult to export into tab-delimited text file format. ...
2
votes
1answer
98 views

How to join two tables and convert joined table to a vector layer containing points in QGIS? [duplicate]

I have one table that contains 450 locations and a table that has 10'000 rows containing data and no spatial information. I have a column that allows me to join them. The issue is that I want to have ...
2
votes
2answers
222 views

Attributes table keeps crashing in QGIS 2.2

I am currently working on an intensive project that requires me to edit the fields of literally thousands of line segments. While updating the shapefile, it crashed on me. Today, qgis has probably ...
2
votes
4answers
4k views

What software for direct editing of a DBF file?

I am currently processing GPS log data from my holiday and need to add information to the points. I remember I used OpenOffice and later LibreOffice to directly edit the files but currently I am ...
2
votes
1answer
285 views

Convert pixel value histogram to table

I am working in QGIS 2.1 with the National Land Cover Database 2006 land cover layer. It is a raster layer with pixel values corresponding to different land cover types. I have clipped this raster to ...
2
votes
2answers
67 views

How to flag parcels as being within stop type dependent distance of transit stops?

first question here! I have a parcel layer and a transit stop layer. The transit stop layer has different bus stops, light rail stops, etc. I want to add to my parcel layer attribute table fields ...
2
votes
1answer
249 views

How to split single lines to represent two-way streets?

I am working on a project using city road data. The data has every road in the city visualized as lines and with directional data stored in the attribute table (one-way to-from, one-way from-to, and ...
2
votes
1answer
97 views

Clipping a buffer from network analyst shapefile to a base shapefile

I have exported my polygon shapefile which I got after I ran my Network Analyst into a shapefile. It has 6 buffer zones (delimited by time in increments of 10 minutes). When I check the attribute ...
2
votes
1answer
631 views

How do I select * rows of multiple columns in one query using Select by Attributes within ArcMap?

I am trying to convert a psql query string into arcpy formatting for an UpdateCursor where expression parameter: '''SELECT \"NAME_0\",\"NAME_1\",\"NAME_2\",\"NAME_3\",\"NAME_4\",\"NAME_5\",\"...
2
votes
1answer
43 views

Change Which FeatureClass a RelationshipClass Points at

When you use ArcGIS' Project tool it creates a new featureclass. This is awesome, unless the featureclass you projected had been related to twenty-some tables. All of those relationships still point ...
2
votes
3answers
1k views

How to join a WFS layer to a stand-alone table in OpenLayers

I'm a complete novice at OpenLayers, and am checking whether the following is possible. I envisage a dataset of polygons in GeoServer, being served as a WFS layer into OpenLayers. The polygons won't ...
2
votes
0answers
28 views

How do I merge a point attribute table to a polygon attribute table in QGIS or GRASS?

I have a point layer containing the following data: I want the following polygon areas to be added to the point attribute table as all the points occur inside the various features of the polygon ...
2
votes
0answers
15 views

Attribute table empty with custom driver in newer versions

I've written a custom ogr driver for one of our own formats. When loading the data I get to see vector data nicely displayed in Brighton/Essen/Pisa. However, when opening the 'Attribute Table' only ...