Questions tagged [fields-attributes]

Fields, also known as attributes, contain information about features.

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3
votes
0answers
111 views

Are there any common field names for the FGDC street address standard fields?

I have been looking into implementing the FGDC street address data standards so that my address data is potentially consistent with other US data I obtain in the future. However, the FGDC ...
2
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3answers
2k views

Deleting columns from joined attribute table in QGIS

After joining the attribute tables from two layers, I have a lot of duplicate columns on my table, making it hard to read. However, when in "edit" mode, I am unable to select and delete columns. Is ...
3
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0answers
72 views

Passing attributes to neighbouring polygons [closed]

I have an ecosystem polygon layer that has been updated using a more recent tree cover layer (to remove cleared areas and also to re-align veg boundaries where growth has occured). Where the polygons ...
3
votes
3answers
1k views

OpenLayers attribute substitution failing on KML file

I'm trying to read in mile markers for a marathon from a KML file and use the MILE attribute to set the label. My layer code looks like this: // add layer mile_markers_layer = new OpenLayers.Layer....
1
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2answers
235 views

Viewing/editing attributed relationship data in Identify/Attributes dialog in ArcMap?

Is there any extension or standard option to view/edit attributed relationship records attributes using standard ArcMap attribute editor and/or Identify windows?
38
votes
10answers
33k views

Identifying duplicate attributes in field using QGIS?

I have a point shapefile with thousands of points. It has an ID code field that is supposed to be unique. Every now and then the data entry clerk wrongly type the ID creating duplicates. Right now I'm ...
5
votes
1answer
2k views

Changing attribute data types using PyQGIS

OK, so I've already asked a question how to access attribute data types when developing plugin for QGIS, using PyQGIS. And one helpful member said i should use pendingFields() method on the current ...
6
votes
2answers
243 views

What event is fired when a feature is edited?

When the user draws a new feature (line, point, etc.) in ArcMap, there are null attributes. If the user enters values in these null fields what is the event that is fired? I want to control the ...
7
votes
3answers
7k views

Accessing attribute data type in PyQGIS

I've been developing a Plugin on QGIS platform using PyQGIS. So far plugin does the following: You can select any feature of the already loaded vector layer in QGIS. After selection, plugin displays ...
1
vote
2answers
906 views

ArcGIS Server REST-Query Layer: only few attribute fields are returned in response

A newbie question in using ArcGIS Server REST service: From the ArcGIS Services Directory, I opened the page of one layer in a MapServer service, this layer has a long list of attributes/fields. ...
2
votes
2answers
2k views

ArcSDE: Specifying fields to not allow null values

I have a feature class in SDE that has various fields where the setting AllowNulls is set to FALSE. When creating a feature in ArcMap in this feature class it still allows nulls to be specified in ...
43
votes
5answers
25k views

Change style properties of several layers simultaneously?

I'm working on bulk data. I have a few hundred GeoTIFF images imported into a QGIS project, and I'd like to modify their layer properties - things like the no-data-value, transparency of certain pixel ...
1
vote
1answer
600 views

Join attribute table [closed]

I am using QGIS 1.7.3 on Mac and when I try to use the tool "join" in the properties toolbox, I have no possibility to add a name for either the file or the field used to join tables. Has anyone ...
1
vote
1answer
4k views

How to do GetFeatureInfo in OpenLayers2

I am new to OpenLayers and I want to add OpenLayers.Control.WMSGetFeatureInfo to get the feature info to website, but I can't figure out right method. I also see the source code of GeoServer ...
7
votes
3answers
4k views

FME: Join attributes in text file with attributes in shapefile

I have a shapefile with points and different attributes - one attribute MyID. I also have a plain text file with several attributes - each in a separated column: MyID MyValue 1 A 2 B 3 C ...
1
vote
0answers
138 views

How to maintain schema when copying feature from layer 1 to layer 2, where both layers have same schema?

If I load two unique layers, wherein each layer contains unique data, but both layers share the exact same schema, why is it when I copy a feature from layer 1, and paste it into layer 2, the ...
2
votes
1answer
4k views

FME: No attributes exported when writing to SHAPE file

Setup: I have some input data (SHAPE) which I use a Clipper transformer on. Depending on the result of the Clipper, I assign a value to an attribute. In the end I assign the two results/streams to a ...
8
votes
1answer
3k views

Why Attribute name length in QGIS is limited to 10 characters?

In QGIS software, a vector layer has "attribute" but the name length is limited to only 10 Characters. Is there any method to name an "attribute" to a longer name? (e.g. attribute name "building name"...
6
votes
2answers
5k views

Calculating field in ArcGIS Desktop using ArcPy cursor?

I'm trying to calculate a field based on the values of others in the same layer in a calculation. I can't work out why its not working. I've even cut everything down to just be based on one field and ...
6
votes
2answers
3k views

Choosing Shapefile attribute data type to use?

I am trying to figure out when to use (in the Data Type of SHAPEFILE PROPERTIES) - TEXT - SHORT-INTEG - LONG-INTEG - FLOAT AND DOUBLE. I am using ArcView 9.3 and I know when it is all text or use ...
8
votes
2answers
3k views

Change default field properties for number format in ArcMap?

Anyone who has worked with numbers that have more than 14 digits has run into ArcMap's wonderful habit of converting any number of such length to e-notation. While changing this is a simple matter of ...
9
votes
4answers
8k views

Deleting columns/fields from polygon shapefile attribute table?

I have a polygon shapefile that is loaded with old demographic data in its attribute file, I just received the new data today in xls format. What I want to do is just delete the old demo data from ...

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