A tabular set of data linked one-to-one to a set of spatial features.
5
votes
3answers
467 views
How to determine the centroid of polygons?
I have a polygon vector and I want to quickly attain the centroid of this polygon for insertion in a text document. I am working with QGIS. I searched through other questions and although some are ...
4
votes
1answer
87 views
convert a dbf into a raster image using python? work around for arcpy
ArcGIS' arcpy does not have a function to add a table to a layout. I was thinking that maybe taking that table (e.g. a dbf), there may be some python script command to turn it into a raster (e.g. do ...
4
votes
1answer
213 views
How to write values from arcpy statistical output to table?
The attached script is my stalled attempt to perform the following workflow:
Create a table and create fields
Loop through a folder of point shapefiles and perform average
nearest neighbor analysis
...
2
votes
1answer
171 views
How to bulk delete shapefile columns?
I have shape-file with next attribute table:
- name of features, unique number for each feature of layer
I must split shape-file by NAME field, but in result in attribute tables of layers should be ...
5
votes
2answers
637 views
Where is my attribute table in ArcGIS 10.1? It is not visible
I've just updated to ArcGIS 10.1 and when I go to open an attribute table, I can not see it anywhere. Where did it go and how can I retrieve it? I'm wondering if it is off my screen somewhere or if ...
2
votes
0answers
39 views
What are the characteristics of a raster to Netcdf layer in ArcMap?
Specifically, when trying to edit the attribute table? This is would be for work purely in ArcMap, and converting raster to Netcdf. I have a land cover layer (that I've converted to a raster to ...
2
votes
2answers
77 views
How can I do a batch edit of circle diameters using the attribute table in ArcGIS?
I need to edit the diameter of a bunch of circles to reflect their correct diameters, and I wondered if there was a way of drawing from the attribute table to make all the circles equal their correct ...
2
votes
3answers
395 views
Creating new shapefile based on its attributes with python
I have a shapefile which has an attribute year. I used to generally copy and paste these features in the dataframe and then using the definition query just show polygons which were established before ...
6
votes
1answer
359 views
How to join tables without losing the original field names in ArcGIS?
I'm wondering if there is any method to preserve the original field names in Arc GIS when I join csv. tables to a Shapefile.
I ask, because sometimes I join tables with 10, 20 or even more columns ...
2
votes
1answer
260 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 ...
0
votes
1answer
140 views
How to stop values from rounding to whole numbers in ArcGIS attribute tables?
I am trying to edit an attribute table in ArcGIS 10.1 and so far have been unable to keep it from rounding to whole numbers. Even when I manage to "pad with zeroes" using the numeric settings, it ...
5
votes
0answers
121 views
How to add shapefile name as attribute during merge? [duplicate]
Possible Duplicate:
How to add field with filename when merging shapefiles with ogr2ogr?
I have more 200 shapefiles with a unique name. I would like to merge all of these together and save ...
5
votes
2answers
207 views
How to add a sequence to the attribute table?
Is there a way to use the field calculator in QGIS to create a range of values in a count sequence with a specified input range? For example, if I wanted to have the values 1 to 5 repeated within my ...
4
votes
1answer
93 views
Join a table to a parcel layer and get duplicate parcels, reflecting individual leases
I have a table of 3,000+ lease files that I'm trying to join to our parcel layer. Each parcel has 4+ leases associated with it, and I need each to be represented by an actual polygon. When I do a ...
7
votes
2answers
247 views
Python, GDAL and building raster attribute tables
I have an integer raster for which I would like to build a raster attribute table using Python and GDAL. I can create a GDAL raster attribute table in Python as follows:
>>> rat = ...
4
votes
2answers
210 views
ArcGIS: Rapid digitizing of Point Data
I have several big maps with a lot of points that I have to digitize. All these Points have different Values (depth in Meter, double) and will be stored in 1 Shapefile.
Is there a way to speed up my ...
2
votes
1answer
261 views
QGIS Attribute Table Not Displaying Data
Using QGIS and one minute I could see the attribute table, the next minute I couldn't. Using QGIS on Linux Mint 13. I tried purge/autoclean/reinstall to get a completely new download of all ...
5
votes
3answers
316 views
Is it possible, in QGIS, to create buffers with a set radius, but with individual values taken from the attribute table?
I am looking to create an output that consists of an 11KM buffer around a number of discrete points, where the buffer has a value defined by a column in the data sets attribute table. Is this ...
2
votes
2answers
386 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
1answer
62 views
Dynamic Attribute Table
This seems silly to me, but I haven't hit this before. I have multiple (30+) point tables, 100 data points each, and want to start designing symbology and doing things like point distance. However, my ...
2
votes
1answer
106 views
How to join attributes of donut polygon to hole polygon in ArcGIS?
First of all I'm completely new to the realm of GIS and ArcGIS.
Basically I need a reliable way to determine a donut hole's containing donut for a few hundred thousand polygons (where the donut holes ...
1
vote
1answer
488 views
How to add simple table of text (Excel) into layout and preserve formatting and clarity?
I am trying to put a simple table of text (excel) into my layout and preserve cell formatting including alignment, borders and text sharpness. I've tried many approaches but nothing so far is ...
1
vote
1answer
133 views
How to create Feature Class based on DBF schema?
I have an attribute table schema (about 30 fields) stored in an Excel document, which I exported as a dbf. I can easily make a geodatabase table from this, using the Excel sheet as a template. How can ...
2
votes
1answer
29 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 ...
0
votes
1answer
527 views
How to divide polygon layer into multiple layers by values in attribute table column in ArcGIS 10.1
I have polygon layer with multiple types of area (forest, grass, and many more), and I´d like to divide this layer into many layers by the area type.
I´ve tried Split function but I receive an error ...
1
vote
1answer
696 views
ArcGIS 10.0 \ arcpy - CalculateField_management : help with syntax for updating text in attribute table of feature classes
I am trying to add (ie "Author", "LastUpdated") to feature classes within a gdb and then populate each of those fields. I have been able to get my code to run properly for the numerical field but I ...
3
votes
1answer
878 views
How do I edit shape file attribute tables so they all have the same information?
I am trying to merge several pipeline shapefiles using GEOMERGE but it cannot complete the function because they have different column definitions.
So I need to edit the attribute tables so that ...
2
votes
1answer
416 views
How to detect duplicate attribute values in a table using ArcPy
In ArcMap, the right-click Summarize option very quickly creates a frequency listing of the chosen field:
Note that the count field shows the count of duplicate values. How can I access this ...
4
votes
2answers
231 views
ArcGIS Attribute Assistant method not working
I don't know how many of you are using Attribute Assistant for ArcGIS 10.1, hope many:) I have some difficulties with a couple of methods.
Well, I got the INTERSECTING_EDGE, the GENERATE_ID, and a ...
2
votes
3answers
471 views
Update a field attribute in one column based on a change to another column in one table
When editing I want to be able to change the attributes of one field and upon doing this allow for the automatic update of another field in the same attribute table. Essentially I have one layer with ...
1
vote
2answers
728 views
Auto fill column in attribute table
Is there a way to fill a column in the attribute table with the same value, similar to a paste . Is there something in the calculator that can be used to fill selected records/attributes.
1
vote
3answers
669 views
How do I get the values of each cell in the raster attribute table?
How do I get the values of each cell in the raster attribute table. Usually the attribute table gives you the value and number of counts. But, in my case I want each cell listed and corresponding cell ...
4
votes
1answer
144 views
Python/GDAL get unique values in discrete-valued raster
I would like to get some advice on the most efficient way to return a list of unique values of a discrete-valued raster using Python and GDAL.
I had thought that the most obvious way would be to ...
3
votes
1answer
346 views
Can I access a raster attribute table in QGIS?
I have some Python code that makes Raster Attribute Tables for GeoTiffs using GDAL. In ArcGIS I can see these attribute tables fine and they behave how I like (as classifications). But in QGIS the ...
5
votes
1answer
683 views
Select all “NULL” values in the attribute table?
I have a quite simple syntax question.
I want to select ALL my null values in an attribute table of a feature class, not just the values in a single field.
So the question would be: what is the ...
4
votes
3answers
531 views
Is it possible to have a dynamic table in a data driven page environment?
I am creating a map series that has many polygons per sheet. There is annotation for the polygons however some polygons are very small with no annotation for them (annotation would completely hide a ...
5
votes
2answers
789 views
ArcGIS 10 Field Calculator doesn't notice selection/Attribute Table problem?
I just have an annoying problem with the Field Calculator in ArcGIS 10.
I selected specific points of a Shapefile I want to calculate, but FC is always calculating all fields. Unfortunately there is ...
0
votes
0answers
70 views
Can i assign a list or array to IRowBuffer Row without Row.set_Value()?
Is it possible to assign a list or array to IRowBuffer Row?
I have something like the following:
I have a fields (list) with values and i have to fill a Row with that values.
public void ...
4
votes
1answer
289 views
Refresh Currently Open ArcMap Attribute Table using ArcObjects
I have written an ArcMap Addin (ArcMap 10.0) that allows a user to perform a join between an in-memory table and a feature class (feature layer) added to the TOC. I want the attribute table of the ...
0
votes
2answers
311 views
How to auto populate multiple fields in attribute table?
i have Feature Class Buildings, it has many fields like ...
1
vote
1answer
136 views
Is it possible to edit Delimited Text Layers in QGIS?
GIS beginner here...
I have a tab-delimited text file that I'm importing into QGIS just fine. But I try to edit the attribute table, the little pencil-looking button is grayed out, and it's not ...
0
votes
2answers
258 views
How do you auto populate a field when a new point feature is digitized?
Is there a way to populate a field automatically when a new point is dropped on the map?
We have our map in State Plane Feet, and we want to the database to automatically add WGS xy
coordinates to ...
0
votes
0answers
310 views
Where do I find the Table Manager plugin in QGIS 1,8? [closed]
I've QGIS 1.8 installed. I can't find the "table manager" plugin when I fetch all plugins and perform a search. Does anyone know where it is?
0
votes
1answer
156 views
Edit multiple tables with the same structure at the same time?
does anyone know how to edit multiple tables at the same time? I have multiple .tab files and I want to change the order of the fields. Is there any way to do this for all of them at once. They all ...
0
votes
2answers
193 views
Primary key field hidden on attribute table added to QGIS
I'm having the following issue with QGIS. Adding a sqlite text table (Layer > Add Vector Table) QGIS hides the primary key field (having name id). I understand also QGIS uses this field as unique id, ...
4
votes
2answers
1k views
How to add automate values to attribute field?
I have parcel, Buildings layers, without any information attribute table, and i want to replace "NULL" values with numbers form 1 to 2000, in "Parcel ID", or "Building ID" field
thank you.
1
vote
2answers
432 views
How to change position of columns in attribute table?
If I have an attribute table with columns A B C D, is it possible to move the columns to different positions, say, B C A D? When making a new column with the field calculator it would be useful to put ...
1
vote
1answer
151 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 ...
3
votes
1answer
136 views
How to stop writeOGR from abbreviating Field Names when using “ESRI Shapefile” driver
I'm currently using the following script to add some attribute data from a table to lots of individual shapefiles:
library(rgdal)
specieslist <- read.csv("SpeciesList1.txt", header=F)
attdata ...
3
votes
1answer
358 views
How to force ArcGIS to recognize a text field in a CSV file?
Related to Data-type detection in ArcGIS table loading
I have a CSV file which contains a mixture of numeric and text fields:
ID,Txt,Int,Dbl
12345,abc,45,56.78
12346,9,65,23.12
12347,10,66,23.13
...
