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

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0answers
31 views

Modify attributes and field calculator in ModelBuilder?

I have approximately 200 point shapefiles that have been created from ASCII grid files. Each one has a Grid_code heading in the attribute table, I need to add in a new heading called height or depth ...
1
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1answer
50 views

How do I Calculate Grouped Percentiles or Batch percentiles in ArcMap?

My question is similar to this one which was answered successfully: Calculating Percentiles in ArcMap? My addition is how do I batch this solution for multiple files or apply a group-by feature to ...
1
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2answers
64 views

Limiting digits in ArcMap?

I am using ArcMap 10.2. I want to create a land information system, one of the features attribute data includes a citizen id field, it includes 11 digits, for preventing wrong value entering, i want ...
2
votes
1answer
46 views

How to export from ArcMap to tab-delimited text file, while preserving formatting and values?

I'm working with a complicated fGDB featureclass which contains hundreds of fields, in a variety of text and numerical formats. This is proving difficult to export into tab-delimited text file format. ...
1
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1answer
143 views

PyQGIS: how to delete layer from TOC when attribute table is closed?

I'm developing plugin where I want to be able to edit non-spatial table inside the attribute table dialogue. As it seems that the only way to do so is to add this table to the TOC first, I do so. But ...
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0answers
147 views

Can Virtual Fields be used for a rendering style?

In QGIS 2.6, creating a virtual field for a layer and adding up 2 integer fields work fine. I get the correct results and I can use that field for styling. However, when doing a Joins with 2 layers ...
2
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0answers
60 views

Shapefile downloaded from GeoServer has attribute data (in Farsi) changed? [closed]

I added many shapefiles and PostgreSQL database into GeoServer! However, when I downloaded this Shapefiles again why is my attribute data not legible in Farsi characters?
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0answers
40 views

Summarize an attribute table using python

I am a trying to summarize an attribute table for a dataset that I have. The problem is similar to the one discussed in this question here: ...
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0answers
23 views

assign text values to selected subset in the attribute table in QGIS [closed]

I am using QGIS and I would like to generate a new string of text in the attribute table for a selected subset of features in a vector file. I cannot find an operator in the field calculator to ...
3
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1answer
43 views

Table output from QGIS graphical modeler

I have developed my own model, which processes input vector layer. The final output is vector layer that contains many attribute fields, and of course, also the geometry, but I need a simpler output - ...
1
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2answers
88 views

Can I merge a polygon and a point Shapefile?

I have two shape files that I want to merge. One is of polygons, the other is a point file. The polygons are missing information in the attribute table that the point file has. In general, the two ...
0
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1answer
23 views

arcpy CSV file to raster attribute table?

Using TableToTable_conversion I can convert a CSV file to a table in a geodatabase, but how can make this table be the default attribute table for a raster in the geodatabase? I can't seem to find ...
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0answers
22 views

x and y coordinates will only display [x],[y] when field calculator is used to make a url

The standard formula for a google maps url is: https://www.google.com/maps/@-15.623037,18.388672,8z https://www.google.com/maps/@(latitude),(longitude),(zoom level)z I am trying to make a new ...
2
votes
3answers
2k 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 ...
0
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0answers
27 views

Up-dating postgis spatial table from CSV files

I have a PostGIS Table I produced from importing a layer file itself created from a CSV. I am getting updates to the main file through other CSV files and need a method of importing the new CSV's into ...
0
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1answer
42 views

Copy table to attribute table

I have some tables with columns that I need to join/copy to another table, in case an attribute table. I was using join but I realized that it would be a better solution to add new fields to my ...
0
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1answer
46 views

Adding the file name of a mapinfo file into its attribute table

I have a task where I need to take the file name (no extension) of a mapinfo file and place it into a new field within its attribute table. I would normally use Arcpy to do something similar, but I am ...
0
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0answers
15 views

Summarize Field IDs from multiple tables

I would like to summarize facilityIDs' from a number of attribute tables. Two of them are point features, the third is a line feature table. I have been using the same prefix for the IDs and would ...
1
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0answers
59 views

Importing KML Google Maps files with custom data tables to Qgis 2.4.0

I am trying to visualize the complete attribute table of an exported Google Maps KML file with a customized data table, but QGIS won't parse the added information correctly. This is what I can read ...
1
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1answer
57 views

Column length editing in QGIS or ARCGIS

Can anyone suggest how I can change the length of an existing column (For ex. column name -- ABCD, column_Type -- Text, Length -- 254). It would be great to have solution on platforms like ArcGIS or ...
4
votes
1answer
171 views

Converting dbf into raster image using Python as way to add table to layout?

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 ...
2
votes
2answers
37 views

How to list data in the attribute table in the same order as I selected the data?

I have a map that consists of a number of pipes that are connected to each other. Is there a way I can list data in the attribute table in the same order as I selected the data? For example: I select ...
0
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2answers
88 views

ArcGIS 10.3 Build Raster Attribute Table fails for large rasters

I am looking at forest loss in Central and South America within protected and unprotected areas. So I have a binary raster (0 or 1) for forest in 2000 and another raster for forest in 2013. I want to ...
1
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1answer
53 views

Is it possible to change data (attributes) in the .csv of a data vector layer and QGIS automatically adopt this?

I have a .csv with data for 300 points: Each column on the .csv is a particular object and the cells define the amount that is available in each point. If I need to change this amount, is it possible ...
1
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1answer
65 views

Convert ASCII to Raster, then build attribute table

I recently obtained precipitation normals from the PRISM dataset online. I'm trying to import the ASCII files into ArcMap, but have stumbled across a few issues. 1) I converted the ASCII to raster. I ...
1
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1answer
82 views

Create new attribute ranking polygons by size in QGIS

I'd like to create a new field in the attribute table which gives the rank of the polygon by size. For example, the polygon of the largest size would be rank 1 and the smallest rank N. I was hoping ...
0
votes
0answers
12 views

Is it possible to create a multi-page drop window in Google Earth Pro?

I have converted my shapefile from ArcMap 10.3 to a KMZ that allows me to open the file up in Google Earth Pro. I have made the map interactive and created hyperlinks to the files I want shown. There ...
2
votes
1answer
55 views

Save a table in ascending order in QGIS [duplicate]

Is there a quick way to sort an attribute table in QGIS in ascending order permanently and save it? My third column is an integrer, of course if I clik on the header the table will be sorted in ...
1
vote
2answers
47 views

Is it possible to withhold attribute data from a shapefile?

Basically, what I'm trying to figure out is if its possible to withhold or lock attribute data from a shapefile if you are sending the shapefile to someone?
0
votes
1answer
58 views

Attribute table is missing in raster after using extract by mask tool

Every time I use the extract by mask tool, the rasters that are created don't have an attribute table (i.e it's greyed out). Does anyone know what is causing this and why these rasters essentially no ...
2
votes
1answer
2k views

Replacing all null values from attribute table with zeros using QGIS?

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 field calculator? I'm using QGIS 1.8
0
votes
1answer
24 views

Extracting Table data from Raster created by iterated visibility test

I would like to run a visibility test using the observer function on each of 500 random points in a region, and end up, ultimately with a table showing the visible area results (count cell for each ...
3
votes
2answers
161 views

Efficient ways to read table data from a large feature layer?

I have a feature layer that contains about 460,000 records and it currently takes about 20 minutes to read that table using the arcpy.da.TableToNumPyArray() tool. Is there a more efficient way to read ...
1
vote
1answer
45 views

Update all cells in column to match value of first row?

I have a point layer; the attribute table includes x and y coordinates of original centroids associated with the points (the points were generated from the perimeters of circle features and still ...
3
votes
1answer
91 views

How to remove a specific unique value with arcpy

using arcpy, i would like to remove,from 50 mxd files, a specific unique value called "residence a" (exist in 3 layers) from the table of content. so i will get this result: The value of ...
0
votes
1answer
86 views

Find and replace with Greek letters returns question mark in ArcGis 10.3

When I try to replace values in a field with Greek Characters they appear as it should be in attribute, but when I save the edits and re open the attribute I see question mark. The same thing ...
2
votes
1answer
43 views

Unwanted text over maps

For some reason one of my attribute tables appears to have created a graphic and is overlayed on my maps. It only happens when zoomed out 1:1,250,000 or more. I have removed all layers to see if ...
2
votes
0answers
41 views

QGIS: Not updating the row number properly. Attributing the last created point with “1” & vice versa

We have to capture the sample points in survey maps. While doing so, we are facing a peculiar problem. Our survey points start from left to right <- along the survey lines. Once we have captured ...
3
votes
1answer
419 views

How to calculate the distance to multiple locations from each cell of my raster?

I'm working with Arcgis 10.1 and Python 2.7.2 How can I calculate the distance to multiple locations from each cell of my raster? I tried euclidean distance but it only provides the distance to ...
4
votes
1answer
533 views

Most efficient method to join multiple fields in ArcGIS

I have as set of shapefiles with approximately 300000 polygons each, as well as corresponding point shapefiles and tables with approximately the same number of row (equal or less rows than the ...
1
vote
0answers
26 views

Nothing in the feature box QGIS?

When I add a feature, the feature attribute box comes up but it has nothing in it...completely blank, no fields. It used to come up but stopped. I have re-installed it but the same thing occurs.
1
vote
1answer
2k views

Getting ValueError: max() arg is an empty sequence on a Python Script in the Field Calculator in ArcMap

I have a script that populates a FacilityID Field on a Attribute table in the Field Calculator but when I run the script below I am getting a error. EDIT: Python Script: def autoInc(): import ...
1
vote
1answer
124 views

How to replace characters to eliminate encoding errors?

Working with Qgis, I have a table representing streets. Attributes inlude street name, length, pavement and some others. Unfortunately, all names with ä or ö or ü display 'odd characters' like Ã1/4. ...
4
votes
1answer
4k views

How to add field in attribute table using ArcPy?

I have researched How to add attribute field to existing Shapefile via Python without ArcGIS? but could not implement it. Can give me examples of how to add field name in attribute table? I have ...
0
votes
1answer
57 views

Combining and extracting attributes from 2 columns to populate a third (Concatenate)

I am working with a FEMA flood zone shapefile which contains a FIELD_ZONE field and a SUBTY field. I created a third field called ZONE_TYPE that needs to be populated by combining or extracting ...
2
votes
1answer
359 views

Change field names automatically

I have an attribute table with over 2500 fields. About 2000 fields start with the name "All_txt_" (eg "All_txt_Watermelon"). Is there a way to remove this "All_txt_" from all the fieldnames ...
0
votes
0answers
24 views

Raster to point: 10 rows in the attribute table per 1 point

I have just made Raster to Point operation. In the output, if I select a point on the map, in the attribute table appear I have just selected 10 rows. How is it possible? Where, in the Raster to Point ...
0
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0answers
26 views

New value in attribute table for big amount of points

I have got a huge amount of points. I need to change their value according to thier current value. Ex. I have got 4000 points. 1000 with value 7 and 3000 with value 8. I have to select all those 1000 ...
0
votes
2answers
196 views

Get coordinates in both decimal degrees and meters in an attribute table

I have an attribute table of points and the coordinates are stated in decimal degrees. I would like to add two fields where the coordinates are also stated in meters or kilometers. I am using ArcGIS ...
1
vote
2answers
65 views

QGIS: digitized object disappear when filling in attributes

When digitizing, for example a point, the attribute window opens for you to fill in the pre-defined columns/information. But no point is shown in the map while you do this in QGIS 2.6. It was shown in ...