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

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80 views

How do I add a lot of data to a shape file in QGis?

I have some nice shapefiles from Agesic in Uruguay, I need to add to them some information (not as shapefile) that I got from Dinamige to the attribute table. These institution are not the point, the ...
0
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1answer
144 views

Sum of values within a buffer polygon

I need to do the following in QGIS and hope so much anyone could help. I have a vector layer with points. Each point represents a firm with the number of employees in the attribute table. I want to ...
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0answers
101 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 ...
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1answer
67 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 ...
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1answer
219 views

ArcGIS Attribute table appears empty until features are selected

I have a multiple layers that show features in the data frame and the layers are editable and labeled, but when you open the attribute table for these layers, it's empty. The only way to get the ...
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1answer
47 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 ...
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2answers
44 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 ...
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1answer
55 views

Why are attributes missing in overlay tab QGIS 1.8.0?

I want to add a diagram overlay onto a shapefile layer. When I look at the attribute table, all the correct columns are shown. However, when I open the layer property box, the attribute columns I want ...
0
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1answer
98 views

Cannot register a Feature dataset

I am having an issue trying to register a dataset, and being able to edit a featureclass within it. I am new to SDE so please bear with my explanation. I read online you cannot register a feature ...
0
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1answer
541 views

How to delete a table field in ArcGIS?

I am trying to delete a table field: From ArcMap table view, I right click on the field heading and select Delete field. Unfortunately, I obtain the following message: Failed to delete the selected ...
0
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1answer
70 views

Can this compilation and display of species frequency data be improved? QGIS 1.8.0

As a newbie on QGIS, I would like to find out if the way I put a species frequency map together could be improved upon. I had to map the presence or absence of 7 plant species surveyed in 30 2m x 2m ...
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0answers
43 views

How can I display multiple categorized fields joined to the same shapefile layer in QGIS 1.8.0

I have multiple csv tables to display on the same shapefile grid layer. Using the properties box, QGIS allows me to add as many join tables as I like. The trouble is, each table needs to be ...
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0answers
28 views

how to divide a Area shapefile into multiple segment, so that each segment will be a seperate feature in attribute table? [duplicate]

I'm very new to GIS, I'm using QGIS and here's what I want to do: I have a shapefile of an area . I want to divide that area into multiple segment (not grid), so that each segment will be a ...
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2answers
116 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 ...
0
votes
1answer
64 views

Table calculation in QGis

I have a shape file with the attribute "yield". I need to know the math difference between yield (id1) and yield (id2)...then yield (id2) and yield (id3) and so on... I hope you understand what I ...
2
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1answer
94 views

ArcGIS 10 keeps putting space in table value, when nothing is wanted

I have a table with a row Page_Number_N some of the rows have values and others just have a space. For example record 4 is just a space. Field values are Strings. 1 2 3 5 When I start an edit ...
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2answers
170 views

How to re-calculate area, perim, p2a,width and length in QGIS?

I cut a part out of one feature and added it to another feature in a polygon shapefile. My problem now is that both features has the same values in the area-, perim-, p2a-, width- and length-columns? ...
5
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3answers
646 views

How to store data from ArcGIS layer in SQL Server?

I'm new to ArcGIS and I want to know if I can store data from a layer to a SQL Server table and if we can do this, then how? I have already made a connection between ArcGIS and SQL Server.
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1answer
957 views

Join Fields from Multiple Tables to One Table in Modelbuilder

I have 40 tables with about 2000 row with a shared ID that I want to merge into 1 table with 2000 rows. I only want to retain a distance field calculated within each table. The distance field is ...
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0answers
64 views

How to take point data from a network and input it as TO/FROM endpoint data in streets layer?

I am building a network of my city's roads in ArcMap 10.1. Right now I have three layers: 1) Streets_To-From (lines representing the southbound and westbound sides of every road and one-way streets ...
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0answers
150 views

Can't order/sort String columns in ArcMap attribute table

I am new to this site as a registered user and new to GIS in general, and it has proven quite useful to me. I have a very annoying problem with the attribute table being filled by an ArcMap ...
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2answers
103 views

Help excel table not transferring to Arc correctly!

New to GIS and Ive been trying to figure this out for a while. I have an excel sheet with CT names such as 0128.03, 0128.04, starting from 0001.00 and up. Not all CTs have .01, .02 at the end just ...
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2answers
351 views

Trigger to fill attributes (data, client ip) in table for each new objects, PostGIS

In PostgreSQL/PostGIS database stores shapefiles. Client users software - QGIS. Please help me write PostgreSQL/PostGIS trigger, which for each newly added/updated feature in layer added 'time create' ...
2
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1answer
141 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 ...
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1answer
88 views

How to hide/suppress and rename/alias fields when exporting to KML?

I have a feature class that needs to be exported to a KML file. I wonder if there is a way for me to export only some of the columns of the feature class's attribute table; some attributes are not ...
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40 views

GRASS - Creating an Attribute Based on Driving Distance

Is it possible to calculate the driving distance for each node of one layer (fire stations) to each node of another (address points)? After doing so, I need to sort all of the distances from shortest ...
3
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2answers
266 views

How to Select by Attributes on features sharing common value?

I am attempting to 'select by attributes' a point feature with the lowest numeric value which shares a common value with other point features in another field. For example: I may have 3 point features ...
0
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3answers
118 views

Exporting the contents of an attribute table in formats other than an Excel file

I know that it's possible to export the contents of an attribute table to an Excel file, but could they be exported in any other format (from ArcGIS 10.0)? I have a feature class whose attribute table ...
3
votes
1answer
1k views

How to edit attribute tables using Python/ArcPy?

I am new to Python, so sorry for such a trivial question. There is a shapefile (let's call it Structures.shp) and the script I'm writing needs to update the value of only one record in only one field ...
3
votes
2answers
228 views

Does QGIS support internationalization?

Does QGIS support multiple languages? I have some shapefile with Arabic names in its attributes, and they appear as: ???? If I want to see the names in Arabic, do I need to purchase multi-language ...
2
votes
1answer
784 views

ArcMap - Opening the attribute table gives 'Could not load data from the data source' error

ArcMap wont display the attribute table of a dataset. I get an error 'Could not load data from the data source' and it says 'An invalid SQL statement was used'. It then opens a table with the correct ...
5
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2answers
247 views

Sort a feature table by geographic location

Here's in interesting challenge: I need to embed a table in a map layout so that the records in the table are sorted according to their geographic position on the ground. For example, in a ...
7
votes
2answers
741 views

How to Refresh open attribute table in ArcMap using ArcPy rather than ArcObjects?

I am running the Calculate Field GP tool from the arcpy in ArcMap. When a row value is updated, it does not show up untill I use the Reload Cache tool (Table Options > Reload Cache). How do I refresh ...
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0answers
210 views

ArcGIS 10 reports with map and data table

HI wonder if anyone knows how to automate a report showing parcel information along with an inset map on the same page. I have access to ArcGIS 10. thanks
1
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1answer
136 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 ...
5
votes
1answer
80 views

Is there an Attribute Table Feature limit?

I am copying a table with 11,000+ features but only about 700 show up on the QGIS attribute table. Is there a limit? how can I avoid this problem? Thank You in advance!
2
votes
1answer
59 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 ...
1
vote
1answer
177 views

How do you parse an HTML formatted attribute value to seperate columns in a database table?

All, I have an attribute field formatted using HTML all ready to go for google earth markers. The KML in question is here: http://dl.dropbox.com/u/95231813/state_pts_MI.kml Here is the value: ...
0
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1answer
54 views

Can you map with numbers and words in the same column?

I have a column in my .dbf file that is a mixture of gradually increasing numbers but also a word for all of the items that don't match the criteria, for example: **JUNIOR_PRI,N,4,2** 3.9 2.44 1.38 ...
3
votes
0answers
175 views

How to create raster attribute table to a raster data using gdal python?

I classified a remote sensing data and saved it as a raster using Gdal python. I want to create a raster attribute table for this classified result.. my classified raster has five classes with ...
0
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0answers
203 views

Select record from table attributes in QGIS and Python

Can anyone tell how I can access to the attribute table of a shp and select a record from a specific row and column using Python (with console or a script). I've been looking for in the qgis API, but ...
8
votes
1answer
406 views

Fastest methods for modifying attribute tables with Python?

A while ago, I wrote a quick Python function for converting an attribute table to a python dictionary, where the key is taken from a user-specified unique ID field (typically the OID field). ...
1
vote
2answers
448 views

Model Builder - iterate through columns in a table

This seems like it should be a no-brainer, but I am unable to find any info on how to use model builder to run a certain spatial analysis function on each column in a table. Problem: I have a table ...
2
votes
1answer
663 views

Using the Field Calculator in a Domain field

I have a coded domain field with 10 dropdown options. Possible choices include integers and text. I need to change a selection of 250 features (which have differing values) to the same value. This ...
3
votes
2answers
173 views

How to show attribute table of object when user clicks on it?

sorry if I'm asking stupid questions but I really spent days trying to figure out how to add functionality to my map so that when user clicks on some map object he gets the attribute table on the side ...
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1answer
60 views

Attribute table field value question? [closed]

I have a field in my attribute table that is land ownership. That field is populated with all different types of ownership but there are redundencies that are just labled differently. Ex. Parks & ...
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2answers
182 views

Setting custom valid values to a MapInfo field?

I was wondering if it was possible in MapInfo to set valid values for a field, e.g a field called material and only valid values being BIT, CON or STO? I have a basic knowledge of MapBasic. Thanks, ...
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2answers
570 views

Get Number of Rows, ArcObjects (VBA 6.0)

I am sorry to bother with what may be an easy question for most of you but i am new to ArcObjects (VBA 6.0) in ArcMap (ArcGIS 10.0) and i am really struggling here. I am trying to count the number of ...
3
votes
3answers
822 views

Comparing table attributes in ArcGIS 10(ArcInfo)

I'd like to compare attributes of two point layers . the layers have some similar records and i try to find these . ArcGIS 10.1 has a tool to comparing attributes but i could'nt find any similar tools ...
4
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2answers
547 views

Total of attribute field of point layer per polygon layer

I have a polygon shapefile of many lakes, I also have a point shapefile of locations on those lakes where fish were caught. The point shapefile contains the attributes: Fisherman_iD, Fish_Caught, ...