A characteristic of an object (person, thing, etc.). In the GIS field, it is used to refer to the non-spatial data associated with a location or geometry

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26 views

How to split a polygon by a polygon and apportion attributes - postgis [duplicate]

I would like to split polygons by polygons and have the numerical attributes be apportioned. For example: I have a parcel that needs to be split by region. With How to split polygons with another ...
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0answers
35 views

Problem reducing the width of the attributes fields of a shapefile using python

I have a shapefile with rather long attribute widths (which is resulting in a rather large file). I am trying to trim it in python, here is my code: layer = qgis.utils.iface.activeLayer() ...
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2answers
10 views

Adding time stamps to animation slides with OSS tools

I would like to create an animation with time lapse values printed on the PNG file. For this purpose I have created in QGIS a vector layer that stores timestamp and temperature value pairs for various ...
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0answers
38 views

How to create a many to one spatial join?

I have a polygon feature class of territories and a point feature class of trees. The points have many attributes, one of them is the tree species name. I need to get the list of all the tree species ...
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1answer
129 views

Check Geodatabase attribute against an external database

I have a Personal Geodatabase to which editors enter values from some field inputs. I would like some of the entries, eg Project No ( whose name is unique and has some some related attributes like ...
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1answer
21 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", ...
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1answer
29 views

Select by attributes within the fiona Python module

Is it possible to select polygons from a shapefile based upon their attributes using the Fiona Python module? I can't seem to find anything in the docs, but it seems like a strange thing not to be ...
1
vote
1answer
55 views

Adding attribute list to combobox in a python plugin

I am developing a simple plugin at the moment which contains 3 combo boxes: comboBox_1 comboBox_2 comboBox_3 Combobox 1 & 2 lists the vector layers available, however I would like the 3rd ...
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0answers
32 views

Why can't I save a line shapefile?

I'm working with qgis v. 2.0.1. I have some data points and I just wanted to create a new shapefile with line geometry. In the new vectorlayer-window, I added some attributes (approx. 10) and klicked ...
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0answers
29 views

how to easily serve vector layer with extra attributes for openlayers

On a website I'd like to show an openstreetmap with buildings colored by a certain feature (tag). So far I was able to extract the buildings for a bounding box, save them as an osm file and load it ...
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1answer
157 views

How to write GML and GeoJSON features while retaining attributes in .NET?

I am developing a .NET project [C#] that needs to export/write features as GML and GeoJSON, including, of course, the attributes; data could queried by a database or manually entered. I checked ...
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1answer
53 views

How can I copy columns from layer 1 to layer 2?

I have two layers, the first layer is pipe: that has some fields (column) title like : length, id, material. Also I have another layer that is empty (without any fields). How can I copy fields ...
2
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1answer
117 views

FME - How to write all attributes when multiple source files have the same name?

I am using FME to write all the MapInfo TAB files in a directory and it's subdirectories to a File Geodatabase. I'm using dynamic readers and dynamic writers as I don't know the geometry or schema of ...
0
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1answer
43 views

Programmatically modify attributes for vector layer in QGIS

I am trying to programmatically modify attributes for a vector layer, using calculated values currently stocked in a dictionary. Any pointers on where i'm going wrong? my dictionary has the feature ...
0
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0answers
21 views

How to update attribute table of a shapefile on display automatically? [duplicate]

I have a shapefile attribute table on display. After some processing, I have to right click click Refresh to get updated version of table. I am wondering if there is a way using arcpy to update it ...
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0answers
20 views

Is there a method to add attribute weights to a network analysis?

I would like to use demographic attributes of a census tract centroid as a weight for a closest facility analysis. My tract centroids are incidents in the analysis while medical centers are ...
5
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1answer
70 views

How can I get the field index of the new layer in my script using Python?

I am trying to use layer.changeAttributeValue(fid, fieldIndex, value) to add values to a field in QGIS Basically, I'm creating a plugin which will, if a checkbox is ticked, create a new field, then ...
2
votes
1answer
58 views

How can one read the response of a GetFeature request with Openlayers?

I am using Openlayers to send a GetFeature request to Geoserver. With the help of Firebug I can see that the response contains some of the attribute data I need. I am interested in showing some ...
2
votes
3answers
58 views

Display multiple attributes for one point

I am using ArcGIS 10. How can I display multiple attributes for a single point. For example, I would like to display (graphically if possible) the amenities provided at various recreational areas... ...
3
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1answer
67 views

Batch map creation, iterated over attributes of a layer, in QGIS

I am using QGIS 2.0.1 under Mac OS-X 10.8.2. I have a layer of counties in New Mexico to which I have joined a csv file that includes presence / absence of plant species by county. I've set up the ...
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0answers
26 views

QGIS grabs incorrect field values for categorized style classification

as seen in the first image, the field values QGIS returns when I attempt a 'select by expression' are values found nowhere in the field in question ('FLD_ZONE'). Instead, it returns a selection of ...
0
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1answer
66 views

How can I get clean road attributes from OSM data?

I would like to use osm road data for a project where I need to broadly distinguish between primary, secondary, and tertiary roads. OSM data seems just fine to work with Arcgis' Network Analyst. ...
0
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1answer
50 views

Attribute names being truncated during extraction

I have 30-40 raster layers and each raster has approximately 40 columns. The attribute/column names are very long, and the beginning of each column name is the same. During the extraction process, ...
0
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1answer
65 views

Split an attribute Python 9.3 in modelbuilder expression? [closed]

Updated question Goal: I need to upgrade an existing Model-builder were the expressions uses Python 9.3. Workproces & Goal: My *.mxd Have 1 attribute field containing the following build: ...
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5answers
203 views

Only Capability appearing is Feature Access

I was wanting to know if anyone could explain why the only capability showing when I try to publish an ArcGIS Service is Feature Access (Picture Below). I am needing to create a service that will ...
1
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1answer
204 views

How to export QGIS contour attributes in a DXF file?

I'm new to this. I have a .tiff data file that generates contours in QGis. That's super. I save it as .dxf. The contours don't have any attributes or data. That's bad, because I want to make a 3D ...
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1answer
1k views

How to Obtain the feature attributes from feature collection

I am able to obtain the features of the layer which is selected by the user in the Layers table and then intersected by a user defined polygon, using e.features. I was able to obtain the attribute ...
0
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1answer
43 views

Using attributes of a polygon in one layer to identify polygons in another

So I'm in the process of developing a web application, I am using open source tools so qgis, postgis, play framework for the web app. And I have come across an interesting problem that I'm trying to ...
2
votes
0answers
44 views

Save WFS layers multiple records with geoext editor grid

How can I save multiple records after modification with geoext editor grid? The saving is working fine if I modify only one of the records, but it fails when I try to save multiple modifications. I ...
1
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0answers
48 views

How to obtain and compare neighboring point attributes? (ArcInfo)

This question is kind of hard to explain in a short phrase, so this is what I'm talking about. I have access to an ArcInfo 10 license. I have a layer of point features that all have a "Team" ...
3
votes
3answers
180 views

FME - How to add an attribute when schema definition is dynamic?

I have an FME workspace which reads a folder of MapInfo TAB files and writes them to a File Geodatabase. The reader and writers are both using dynamic schema as I need to run this workbench on ...
6
votes
2answers
123 views

How to enumerate join values with ArcGIS?

I have two shape files (e.g. postal code areas and cities) which I want to join based on an id that both shape files have in common (the id would be the city name in this example). Joining the two ...
3
votes
1answer
34 views

Input field not showing up in Distance Matrix In QGIS 2.0

I tried to perform a Distance Matrix analysis of building centroids. I have a two building centroid layers. The attributes in both the tables are name, osm_id, perimeter and area. In the Distance ...
0
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1answer
165 views

access attribute values in openlayers rule

I have a webgis where i use openlayers and i'm trying to make a FOR loop to generate a series of rules for my POI layer. I have tried just like that: http://pastebin.com/CTuiWd4V My problem is that ...
2
votes
1answer
119 views

Automatic calculation in one attribute table based on values in another attribute table using python

I am trying to fill the fields of one gdb table based on some statistics over the attributes of another shape file. As it was not possible in ARCgis directly, I am trying to use python coe for this ...
0
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1answer
35 views

How to Add Field Between Two Existing Field in Shapefile

Can you please let me know if it is possible to add a new Field between two existing field using ArcPy? For Example if I have "Name", "Area", fiels already in my shapefile can I add a new field called ...
0
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1answer
85 views

Calculate attribute height of point data

I have an x (easting), y (northing) and z (height) values associated with my point shapefile. I would like to calculate the z values from the DTM I have - how do I do this in QGIS? I am fairly new ...
0
votes
2answers
2k views

OpenLayers Select a feature from attribute or id

Using Openlayers.....Is it possible to select a feature on a map by an attribute? eg: Select a feature from a dropdown menu populated with the feature "id" or a table field attribute values.
1
vote
1answer
88 views

selection by attributes with python

I have a problem concerning the selection by attribute with python on arcmap. I use this code: import arcpy from arcpy import env arcpy.env.workspace= "E:\cities" Mi=(r"E:\cities\rivers.shp") rows = ...
1
vote
1answer
80 views

Join Tables related by a composite primary key in qgis

I have two tables, one has the geometry and other has attributes. The table with geometry has unique number primary key, and 4 columns admin1,admin2,admin3,featureid. Table two is a csv file has the ...
0
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0answers
61 views

How to change Split Vector by Attribute to produce files with attribute values as file names?

Using: QGIS 2.0.1 I am trying to separate a large fauna point .shp file into many shapefiles based on each species' unique name attribute (i.e. by "SCI_NAME" field)??? I am currently using "Split ...
0
votes
1answer
44 views

Split by attribute automatically on several layers in QGIS

I need to do a 2 stage split by attribute, using QGIS 2.0.1-Dufour. After the first split, I got 30 layers. Is there any way to do the second split automatically? I don't really like the idea to make ...
0
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0answers
51 views

kml to shp including a field attribute as name/description (using 2.1.0 Durfour)

I have the Durfour version at my disposal. I captured some data in Google Earth, converted it to .shp, made some revision (e.g. added consecutive numbering) and would like to convert it back into ...
0
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3answers
496 views

KML attribute data on onload of html page using openlayers

How to get KML attribute data on onload of html page using openlayers. This is kml file: click here to get kml file Any help is appreciated. Thanks in advance.
2
votes
0answers
53 views

Can I use a cursor to select two rows and compare attributes

Can I use the cursor search function to look at the first two rows in a table and select them so I can compare attributes and possibly merge them or change attributes? I am using ArcGIS 10.0
3
votes
2answers
178 views

How to create a label formatted like “ 1,000' ” from a numeric field?

This question builds on a previous question I came across at gis.stackexchange: How to easily edit attribute data using Regular Expressions? Perhaps someone can point me in the right direction? I ...
3
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1answer
52 views

New attribute creation using ogr and regex

I've got a folder full of dxf files with elevation values included as part of a long text attribute. I've written a regex expression to extract the elevation value, and would like to add it as a new ...
3
votes
1answer
2k views

ArcGIS 10 - Raster cell values and raster attribute tables - reassign raster cell values from another attribute

It seems like this should be relatively easy to accomplish, but I've been messing with this issue off and on for a couple days and have not successfully figured it out. Problem: I have a large (size ...
1
vote
1answer
116 views

How I can insert feature attribute after feature drawing complete

I am new to OpenLayers. I am trying to insert wfs feature information to my map after drawing like this. I can draw a WFS feature like (polygon, line, point) on map and after drawing the feature ...
0
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0answers
216 views

Add new rows to a shapefile

I'm using QGIS. When I enable editing of a shapefile's table attributes and select, 'open attribute table,' is it possible to add new rows to the shapefile's table attributes? The problem I'm trying ...