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

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111 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 ...
2
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1answer
53 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", ...
2
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1answer
359 views

How to adjust QGIS attribute table view column width using Python?

I'm programmatically opening the Attribute table via Python through a plugin. All of the columns have a default width, but some of the data that I'm using do not fit. It's not enough to be able to ...
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1answer
60 views

Why do field values change when exporting from QGIS?

Today I came across a very strange behavior of QGIS. Maybe someone knows what's going on? I have a table with two fields which are defined as Double, with a Length of 20 and a Precision of 0. Some ...
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1answer
563 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 ...
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0answers
87 views

How to output visually correlated clusters using Morans I Spatial Autocorrelation?

How do I use Morans I to output visually correlated clusters? I can seemingly generate statistical data, but not one that I know how to visually output on a map. I'm trying to run a morans I ...
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3answers
76 views

How can I change more than one attibute at the same time?

I'm working in QGIS 2.0.1 Dufour. I started by cretaing a shape file form an AutoCad file. The problem is that in the AutoCad, my layers had symbols like: "~; ç; ^". As the QGIS does not support this ...
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2answers
709 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 = ...
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1answer
180 views

Is there a way to modify an Excel sheet which is already open in ArcMap?

I have an excel sheet that is joined to a shapefile in ArcMap. I need to modify many elements of the table, but every time I need to close ArcMap in order to be able to do it. Is there any way to ...
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1answer
99 views

How do I add coordinates to a polygon layer to be able to sort the polygons from north to south in QGIS?

I have a polygon file, where each polygon represents one property. I want to be able to sort the polygons from north to south or vice versa. I need them to be sorted in this way when I export them to ...
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3answers
109 views

How to add data to an attribute table?

I have a shape file (points) and would like to add points using the attribute table and not the Add Feature tool at the main screen. I went over the Qs here, but didn't find a similar problem to ...
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5answers
342 views

Print out the properties of the attribute table in qgis?

I have to merge a lot of shapefiles into one great shapefile. So I want to compare the properties of the attribute tables to see if there are differences between the tableproperties of each shape ...
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1answer
72 views

unable to modify records from one shapefile to another

I am trying to update the atrribute data of a feature class with respect to another one by matching a common field. But it is returning an error for the setValue command. My code looks like: import ...
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1answer
573 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 ...
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2answers
1k views

QGIS select features from attribute table using the “LIKE” operator

I created an expression with the help of the GUI in the QGIS attribute table of a vector (shapefile) layer of Native American ("Indian") reservations in the USA state of New Mexico. "NAME" LIKE ...
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1answer
338 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 ...
3
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3answers
608 views

How to color-code geology maps with given CMYK colors?

I'm trying to understand whether it is possible to corectly display colours in British Geological Survey maps. Our client has a licence to use the shapefiles but unfortunately BGS don't provide SDL ...
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2answers
791 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
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1answer
62 views

R generated files getting scrambled on import in ArcGIS

I want to put this out there just in case someone somewhere has experienced similar issues. I have a .csv file that I have generated in R 3.0 using this code: ...
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2answers
69 views

Why do I have text of attribute table on my view in ArcMap 10?

Can anyone tell me why do I have attribute table text on my layers in ArcMap 10 and how I can get rid of those texts? I have no idea when the texts appeared into my workspace. I have been digitizing ...
0
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1answer
64 views

attribute table in qgis wont save custom values

I am trying to edit a point shapefile in qgis and I have editing on for that layer, I have added a new column for the custom data, I have set it to text and have 8 characters allowed in the column ...
2
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2answers
141 views

How to show only raster attribute table using GDAL?

I have a binary ArcGRID raster (AIG/Arc/Info Binary Grid) with an attribute table. I would like to get only this attribute table but gdalinfo outputs also projection information and bounds and then ...
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3answers
292 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. ...
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2answers
224 views

Generating Values in the Attribute Table

In the attribute table within GIS, I have a certain column with ascending values, and I want to assign ID numbers (for easier readability and display) to a corresponding column. So for instance: Feet ...
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1answer
86 views

Is there any way to add an area column to new shapefile created from raster with gdal's polygonize in the same step?

I've been going through a fairly lengthy process of polygonizing very intricate raster images, then creating a new layer with the extra area attribute, so that I can then remove the millions of tiny ...
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1answer
257 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 ...
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2answers
244 views

Is it possible to force uppercase in a geodatabase string field?

I have certain string fields in my geodatabase tables with which I would like to enforce an all-uppercase rule. These fields are ones that do not lend themselves to domains (such as address fields). ...
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1answer
203 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 ...
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2answers
370 views

How to add a new column in attribute table with attribute with indexes of another max-min ordered attribute field?

I've an attribute column named e.g. VALUE with different values I would like to make a column named e.g. ORDERsuch that the greatest value has the attribute 1 the second value 2 etc. etc. so order ...
0
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1answer
213 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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2answers
99 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 ...
2
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1answer
354 views

How to make autoIncrement number start with (001…009, 011…099)?

i have a challenge with my time in my work, i have feature class called "Parcel" storing many data, i generated an autoIncrement number by using field calculator, in field "parcel code" Expression: ...
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1answer
173 views

How to delete Field From Shapefile by Arcpy [closed]

I am using the following code to delete a field from a shapefile but I am getting an error! def main(): # Import arcpy module import arcpy # Local variables: point_shp = ...
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1answer
45 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 ...
5
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1answer
871 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 ...
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0answers
91 views

When doing table to table conversion, a text field gets converted to Blob type

I have one field that keeps getting converted to Blob type after conversion using table to table tool. The field is mostly text and fairly lengthy, maybe 250 ish characters. Is the length of the field ...
0
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1answer
92 views

How can I access second (or even third) level attributes in a vector layer and add them to the attribute table? [closed]

I got some .dxf file containing buildings I need for my map. The file loads nicely into QGIS and I converted sucessfully to shape. I still can find the Information I need (the buildings height) in the ...
0
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1answer
406 views

Sequential numbers in a field using Python in the Field Calculator on a based on Sorted Column not FID/OID [duplicate]

This code below auto-increments based on the FID/OID in the attribute table. How can I auto-increment a column based on a sort of another column? I don't want it to follow the FID/OID. Please advise, ...
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2answers
856 views

How can I replace all null values from attribute table to zeros?

I have a new column in my attribute table with a lot of null values and I want to replace all them to zeros. How can I do that in calculator? I'm using QGis 1.8 Thank you!
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0answers
56 views

ArcGIS - Table columns lose formatting when I make a new copy of shapefile (Decimals, Thousands separator, Highlighting)

When I make a copy of a shapefile or I join two shapefiles and then create a subsequent shapefile, my number type columns (in the attribute table) will default back to numbers with many decimals and ...
0
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1answer
56 views

How to store both fixed and variable attributes as a feature class?

I have a live data feeds as an XML file from the Internet. I need to use Python and ArcPy lib to store each feed as a point feature in a feature class of an ArcSDE datbase. The xml looks like: ...
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1answer
1k views

How to Build Raster Attribute Table from .tif with pixel type of float or double?

I have a raster with the extension .tif. It's a subset of 87x87 pixel with values from some 6,66 to -4,27. If I right click on it there is no Attribute Table available. However, I can change the ...
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1answer
497 views

How to provide meanings (metadata) of attributes/fields with shapefiles?

Usually when doing GIS projects, especially when working as a freelancer, you're just provided with a bunch of shapefiles and you have to figure out yourself what all the table attributes mean. ...
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2answers
86 views

How can I delete from attribute table in a dxf file in ArcGIS?

Hy everybody! I have tried delete one row from an attribute table in a dxf file, but I can't. ArcMap said I need to export that to a geodatabase or something similar. What exactly should I do? From ...
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2answers
438 views

Problem with adding new field to attribute table after performing join by attributes

I am studying ArcMap 10.2 and concentrates on different join operations. I am working on a Personal Geodatabase. I have digitized some polygons from a raster representing houses and have created a ...
2
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1answer
68 views

QGIS; Is it possible to show layer name in attribute table in print composer?

When adding attribute tables in the print composers it is not possible to distinguish between various tables from various layers; each table is generic and does not indicate which layer the table is ...
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2answers
1k 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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2answers
427 views

Insert image in attribute table(unable to save edits operation attempted on empty geometry)

I have been trying to associate/insert images in an attribute table. I have created a field called pictures and data type is Raster. ( I have used this resource video to do the task) Once I load the ...
0
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1answer
48 views

Inserting attribute table into QGIS Composer is limited to 99 rows

Inserting attribute table into QGIS Composer is limited to 99 rows? Or am doing something wrong? Stems from How to import or incorporate formated Excel tab into QGIS print composer
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2answers
4k 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 ...