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

learn more… | top users | synonyms

1
vote
1answer
93 views

How to Calculate Cumulative Field Values in Arcmap

My problem is conceptually quite simple; In Arcmap 10.2, I wish to create a field which contains the cumulative values of another field in the same attribute table. For example, if the first three ...
1
vote
1answer
55 views

organizing attribute table: multiple sets of variables per point

I would like to have hints on the best way to organize my dataset (I am working with ArcGIS 10.1, advanced license). I would like to build a points layer, each point being a weather station in the ...
1
vote
1answer
87 views

Pinning ArcMap Table of Contents but not Attribute table window?

I have pinned by table of contents but I would like to view my attribute table as floating - i.e. I can make it much larger so I can view the data easily.
1
vote
1answer
61 views

How to symbolize based on feature class and assign a unique value per point?

I am trying to produce a map in ArcGIS 10.1 that symbolizes by feature class but also assigns a unique number (as part of the symbol) to each location that will relate to a table embedded in the map ...
1
vote
1answer
83 views

How to batch-process attribute tables in QGIS (or GRASS)?

I'm using GRASS 6.4.3 in Linuxmint 16. I have a bash script for GRASS which I use to process almost 300 raster files. The script first imports some raster files (r.in.gdal), then does some ...
1
vote
2answers
272 views

Autoincrementing Python Script is over writing all fields versus just fields that are null

Using ArcMap and the Field Calculator I have a python script that should autoincrement the FacilityID field if it is null. It works the first time through but the second run causes it to overwrite ...
1
vote
1answer
133 views

Data Driven Pages and Attribute tables

I was wondering how I can show ID/page specific attributes on a map book project that has already been made? I recently took over our GIS mapping duties for a former coworker who retired. He had ...
1
vote
1answer
99 views

Alias's in the Attribute Table's Column Preview/Column Filters

We've spent some time setting up alias's in Layers/Properties.../Fields (Fig. 1) for database fields displayed as the column headers in the Attribute Table (Fig. 2). Switching the layout in the ...
1
vote
1answer
498 views

Use of Copy / Paste when editing attribute tables in QGIS

I have a number of polygon attribute tables with columns that I want to update with new information. Is there a way of (relatively) quickly editing info in attribute tables in QGIS eg such as using ...
1
vote
3answers
267 views

Append Attribute Table of multiple feature class with same points/ pointID

I used extract by points function to extract values from multiple rasters using a point feature class. The output is a couple hundred point feature classes with values associated with those rasters. ...
1
vote
4answers
345 views

Joining shapefile table with csv

So I am having a shapefile with all the world countries. And the table for this shapefile has a column named "Country Name". Each of this entry is unique, meaning, each country takes only 1 row, and ...
1
vote
1answer
239 views

How To Show Percentages By Coloring Polygons in QGIS?

I am trying to produce a map with QGIS that has counties shaded according to the percentage of people born in a US Region. For example, counties with a high percentage of people born in the South ...
1
vote
1answer
340 views

remove whitespace Python code results in odd character - Field Calculator

I need to remove whitespace from the end of a string in a field in ArcMap. I tried first the VBA function RTrim, but whitespace still remained. I thought maybe the whitespaces were tabs, so I tried ...
1
vote
1answer
67 views

ArcGIS - Cell Content Deletion

I have a really simple question I can't find the answer to. I'm looking to delete a range of values from an attribute table in ArcGIS 10. I'm looking for a quick way to delete about 3000 records. The ...
1
vote
1answer
107 views

QGIS Spatial Queries

I was wondering if I could do the following within QGIS: I want to update a column in my point layer with the attribute information from a specific column in a polygon layer - so I have a layer of ...
1
vote
1answer
78 views

Summarize X, Y Table

Here is a table that is a sub-set of the data I am working with, I am trying to use the Summarize Statistics tool to select the X,Y values of the First and Last Addresses. I am looking for ...
1
vote
1answer
55 views

How to work around “OGR-failure while deleting field 13. Invalid field index”?

this post might be related to this one: QGIS Field Calculator Results Removed When Saving Edits But there is no suitable answer for me It is not allowed to ask another time in the other post I ...
1
vote
1answer
192 views

arcpy: can I use SelectLayerByAttribute to compare fields from joined tables?

I can't figure out the syntax to select table records where one field's value exceeds that of another. The fields are from a pair of table views connected w/AddJoin(). One view is of a fgdb table and ...
1
vote
1answer
117 views

How to organise species inventory data by survey plot? Mapinfo

I am undertaking a flora species inventory at each of approximately 40 plots. The location of each plot will be recorded with GPS and mapped in a GIS layer. I would like to include the full species ...
1
vote
1answer
217 views

v.dissolve renames the attribute table column and does not produce a dbf

When I run v.dissolve on my vector... v.dissolve --o input=pass2@mapset1 layer=1 column=fttcp output=pass3 The dissolving appears to work but the column name in the attribute table has changed from ...
1
vote
2answers
918 views

ArcGIS problem accessing fields attribute table

I encounter a strange problem. I have a simple shape file to which I added some fields and then populated them. Now I wanna access those fields from a script to run some buffer operations. I wanna ...
1
vote
1answer
551 views

Data Driven Pages reading angles in attribute tables question

Is there a way to emulate the Data Driven Pages process (ArcGIS 10) of reading angles (rotation) in a polygon shape file? Screen shot of the DDP window with rotation field and corresponding attribute ...
1
vote
1answer
2k views

Display Selected Features Attributes in User Form

I'm trying to convert my ArcGIS 9.3 code to ArcGIS 10 via Visual Basic 2008 Express; however, I'm having a couple issues. The goal is for a user to select a feature in ArcMap, click on this custom ...
1
vote
0answers
32 views

Add field and number fields of different shape files

In my project I have 3 different shape files (shape1, shape2, shape3). All of them should get a new field (add field to attribute table). In this field I need to have a number (for shape1=1, shape2=2, ...
1
vote
0answers
14 views

Sort Field in Pie Charts

I'm working on a class project where we make a pie chart out of an attribute table. The attributes are geologic layers (UNITNAME), and the area they occupy (area_pct). In the "Create Graph Wizard", ...
1
vote
0answers
27 views

How to implement 3NF (third normal form) in ArcGIS attribute tables?

How can I implement 3NF (third normal form) in ArcGIS attribute tables? I have a field what have redundant values, and I need to run different functions for these redundant datas, so I need to place ...
1
vote
1answer
28 views

Compare 2 tables of different lengths

I have a problem and am looking for some help with the following: 2 Layers: Not_Joined and Joined Not_Joined: Old digitized data that has X attribute in it. Joined: Spatially joined layer that has ...
1
vote
0answers
63 views

Can Virtual Fields be used for a rendering style?

In QGIS 2.6, creating a virtual field for a layer and adding up 2 integer fields work fine. I get the correct results and I can use that field for styling. However, when doing a Joins with 2 layers ...
1
vote
2answers
71 views

Interpolation with z-values taken from a related table

This is a follow-up question (organizing attribute table: multiple sets of variables per point). I am working with ArcGIS 10.1, advanced license. My aim was to build a points layer, each point being ...
1
vote
1answer
76 views

How to add new columns with attributes in existing Qgis layer?

How to add new columns with attributes in existing Qgis layer? Doing the "same thing" here described
1
vote
0answers
69 views

Copy parts from several attribute tables in shapefiles?

I have several shapefiles from which I wish to take parts from their attributes tables to make a new attributes table. Is this possible without destroying the original attributes table? I have ...
1
vote
1answer
51 views

Joining a table with thousands of transactions to one point (location) in Arc Map

I have a large transaction data set in the millions and around a 100 positional points. I need to join the transaction data set to these points. Arc map won't let me join them without errors or if it ...
1
vote
0answers
32 views

Attribute table in Tilemill - incorrect informations

I was editing OSM shapefile in ArcGIS 10.1. I have added new column to attribute table. Type of columns is "text/string". So content of the lines is only text (type of polygons). After adding this ...
1
vote
2answers
71 views

Save Multiple Selection from Attribute Table

I am working with a shapefile that has all the address points for a municipality - it has over 500,000 features. I would like to search the attribute table for specific addresses and save those ...
1
vote
0answers
54 views

How to set QGIS action to open and search for features on Google Maps?

At the moment, I have an action that takes each term in an address field and conducts a search on EACH term in Google (ie. multiple tabs are opened for each term). The action code I have is the ...
1
vote
1answer
57 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 ...
1
vote
1answer
60 views

How to perform a spatio-temporal query in attribute table? [duplicate]

I am not good at programming, so I would ask for your understanding concerning my question. I have an attribute table that contains five columns which are: (Date, ID, Latitude, Longitude, Rainfall). ...
1
vote
0answers
29 views

Unique ID in ArcMap 10.2 [duplicate]

In an attribute table, how should I go about adding a Unique ID into a field? For example, I have a Water Meter points layer with an attribute table but I need a field that list them numerically with ...
1
vote
0answers
91 views

How to keep all the unique columns of the shapefiles after merge?

Writing a script where the user is asked to select a directory which contains Folder_1 and Folder_2, both containing shapefiles and run various algorithms. The basic logical process of the script is: ...
1
vote
1answer
84 views

QGIS 2.2: Attributes table keeps crashing

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 ...
1
vote
1answer
120 views

fill a layer's attribute table from another layer's attribute table

i am working on arcgis 10.1. I have a layer of polygons divided into squares of 200m/40m with the attribute table filled. I have a second layer of polygons divided into squares of 200m/60m with an ...
1
vote
0answers
71 views

Merging shapefiles to one, rearrange columns?

I am trying to merge two shapefiles which both contain polygons representing properties in QGIS 2.2. One problem is that the names of some of the columns in the attribute table differ between the two ...
1
vote
1answer
46 views

QGIS how to add string field

I have a few point shapefiles. I want to merge them, but first give each point a certain type according to shapefile. How do I add a String field, all with the same word? (changing the field type ...
1
vote
0answers
18 views

Query from plugin that shows result on Map and in Attribute Table

I'd like to create a plugin that performs a static (no user input required) query that, based on a condition, selects all the features on the map and displays these in the attribute table. I have the ...
1
vote
1answer
323 views

Extracting data from a raster to a polyline based on start and end points?

I have a polyline shapefile with the attributes seen above. startx and starty represent the coordinates of the beginning of each segment of a polyline. endx and endy represent the coordinates of ...
1
vote
1answer
261 views

Building attribute table from raster in ArcMap 10.1

I have a NetCDF file containing the latitude, longitude and porosity for the entire US. I am trying to add another value (wilting point) which depends on the porosity. I wanted to extract the netcdf ...
1
vote
2answers
97 views

How to transfer multi attributes in to features?

i have 2 feature classes, i want to transfer all attributes by one click to another attribute feature class, i have used Spatial Adjustment tools, but the challenge with me is to, how to transfer all ...
1
vote
0answers
82 views

Attribute table in Map Composer has no content QGIS 2.0 [duplicate]

I make a QGIS Plugin and I try to use the map composer to print a .pdf Map. In this Map I like to display the attribute table of a layer. I load it in with: vLayer = ...
1
vote
0answers
173 views

How do I edit a shapefile DBF to repair an extra row?

Something got screwed up and now the rows of my DBF beyond #1210 are offset by one, meaning that each shape has the attributes that should be assigned to the next shape. If I were in a spreadsheet ...
1
vote
2answers
176 views

How do I gather X and Y co-ordinate data from a vector grid overlay in QGIS 1.8.0?

I have overlaid a 10m x 10m grid onto a UK Ordnance Survey raster map. I have set both raster and vector maps to the same CRS, (OSGB 1936 British National Grid; ESPG:27700). I have a csv file ...