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

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1answer
56 views

How to update new column in attribute table with same values but different field type?

I am struggling a bit with debugging my code, over something that seems very simple. I am using an update cursor to copy and convert existing string data into a new float column of my shapefile's ...
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0answers
16 views

Add field, if not alredy exist. Else do nothing [duplicate]

I want to develop a python code that: Enters a shapefile. Determines all its fields and, if among these fields there are some missing from a certain list, it add them. An example may be easier to ...
0
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1answer
21 views

How to remove XML tags within a field of attribute table?

I have this dataset I got it from Wikimapia ,containing bunch of fields . One of fields named "PopupInfo" contains xml tags : and looks like this when in editing mode : I want to remove these ...
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0answers
15 views

Number of markers depending on attribute

Is it possible to have a line vector layer where the number of markers is dependent on a particular attribute? e.g. I have the attribute "number of X" which depends on $length (number of X = ...
2
votes
1answer
67 views

How to use the field calculator in QGIS to determine the total of differents fields

I have an attribute table with 7 fields. I want my attribute " A1 " to be the total of " IP1 to IP5 ". I am not familiar with the request in the field calculator. How can I calculate the value of ...
2
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2answers
46 views

Expressions, Attribute Table

I'm new on QGIS, I have shapefile for the whole country and also have for Province down to City/Municipalities, is there any way on attribute table where I can filter using an expression for example: ...
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2answers
47 views

How to calculate X and Y coordinate of a surfacic layer in QGIS

I have a surfacic layer in QGIS 2.12.3. I need to calculate the X and Y coordinates for the centroid of my polygons. I created a new field in my attribute table. When I try to use the field ...
5
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7answers
283 views

How to join data from excel to an attribute table in QGIS without creating duplicates

I have an attribute table with two empty fields in QGIS. I want to import an excel database to fill my empty fields in QGIS. My excel file matches the columns in my QGIS attribute table. I am ...
3
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1answer
59 views

How to merge attribute table properties from one layer to another in QGIS?

I am using QGIS 2.2.3 (Lyon). I have a vector layer with a linked attribute table. In order to do multiple tests on the layer, i created a copy in a new layer. The attribute table on this new layer is ...
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0answers
29 views

QGIS QT .ui not displaying attribute table value

Following tutorial 6.3.6, Creating a New Form (the first introduction of Qt designer). Seems very basic. Create a point layer with two attributes: name (text 80) and age (text 80). Then in QT ...
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1answer
43 views

How to row differents column with QGIS?

I am working on a long riperian buffer that crosses the boundaries of 20 cities. My buffer is subdivided in the same layer, in 20 sections that correspond to the limits of the cities. Each section is ...
2
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0answers
38 views

How do I get Actual Truck Driving time to the Network Analyst?

I am new in working with the Network Analyst tool in ArcGIS. I am trying to find the closest facility to some assigned incidents. The result that I am taking after I solve the paths is in minutes. ...
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1answer
125 views

AttributeError: 'NoneType' object has no attribute 'dataProvider'

I want to add new column to attribute table of vector layer via Python console. I'm trying to do this following instructions from ...
2
votes
1answer
44 views

How to create a unique identifier in the attribute table based on spatial location within another layer?

I am currently working in ArcGIS 10.2.2 for Desktop and would like to know if there is a workflow for creating a unique ID for polygons within a shapfile based on their location. I am using data ...
2
votes
1answer
32 views

Joining data from 2 shapefiles Qgis

I think there must be a atraight forward answer to this but I haven't managed yet: I have two shapefiles for the same watershed they are both divided into different areas with different erosion ...
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0answers
42 views

Dynamic symbology or Attribute driven symbology: How is it done?

http://pro.arcgis.com/en/pro-app/help/mapping/symbols-and-styles/attribute-driven-symbology.htm Two dilemmas I have found myself trying to figure out. 1.Is there a way to configure ArcMap with an ...
1
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1answer
33 views

How to show just a few objects in the attribute table? [duplicate]

I am pretty lost with the attribute table, so I couldn’t figure out the already existing answers about it (using QGIS 2.12.3.). I have a shapefile with all the protected areas in one region. Since I ...
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0answers
21 views

Missing Geocoded Addresses in Attribute Table

I geocoded about 13,000 addresses. I opened the Interactive Rematch Window and made adjustments where necessary. When I look at the Interactive Rematch window, I can see all of my addresses. ...
4
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3answers
79 views

How to Make Two Attributes Display Simultaneously on one Shape File

I am trying to make a map that displays both an incidence rate of a type of cancer and also display at the same time a percent of the population per state that has a certain vaccination. I've added ...
2
votes
1answer
53 views

How to Combine features in an attribute table based on an attribute

I have a shapefile containing country boundaries for a number of countries in Asia. Many of these countries have hundreds of islands, so that overall there are other 2000 separate features in the ...
5
votes
4answers
125 views

How to select and change only certain (same)values in attributetable in QGIS

I have an attributetable. Spread all over it are numbers like -99999997. I want to replace them by zero (0). There a many columns in which there are such numbers. I have used the expression (an ...
1
vote
1answer
41 views

Is it possible to change the precision of a field in the attribute table in ArcMap? [duplicate]

Is it possible to change the precision of a field in the attribute table in ArcMap? I have a shapefile with X and y coordinates of pointlocations. I would like to change the precision. Is this ...
3
votes
1answer
70 views

Update column in .shp from .tab with QGIS

Is it possible to perform in QGIS an "update column" on a .shp table with data from a MapInfo.tab having one field apparently in common? One of the greatest uses of QGIS (for me) is the availability ...
2
votes
2answers
80 views

Displaying attributes for features within current map extent in ArcGIS Desktop?

I have found Landsat 8 PanSharpened WMS service here. It is a mosaic made by Esri. I can open attribute table of this mosaic dataset. Can I sort rows of attribute table to see only rows related to ...
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2answers
138 views

Inserting text into field of attribute table in ArcGIS for Desktop?

I am populating an attribute table. After adding a field i have to populate the field with different texts in a sequential order like water, air, car, school etc. i have completed inserting water ...
3
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2answers
72 views

Separate different zones from one attribute in QGIS?

I am new with QGIS and I use QGIS 2.12.3 Lyon. I downloaded from an official web side the protected water areas. Those areas are separated in different zones (for example zone I, zone II and zone ...
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0answers
21 views

In QGIS add new attribute table features from updated csv [duplicate]

In QGIS I created a point layer from a csv using "add delimited text layer" (the comma icon). I set style and viewing scales the way I want for the layer. Since then the csv has been expanded with ...
3
votes
2answers
43 views

replace records in layer with records form another layer by id and column name QGIS

I have a two polyline layers - one with 2800 rows, the other with 150 rows. Each row has a unique id column. I need to replace the records in one column of the the 2800-row layer with the records ...
3
votes
2answers
126 views

How to calculate depth from Esri ocean basemap?

I need to find potential routes for undersea power cables in South East Asia, therefore I need to select all areas where the ocean is less than 4000m deep. I load the "ocean basemap" from Esri but it ...
10
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4answers
347 views

Need to find strings that contain the same word twice

I have attribute data with owner names. I need to select data that contains the last name twice. For example, I may have an owner name that reads "BENNETT MCCARL & ARNETTE BENNETT". I would like ...
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0answers
26 views

Publishing feature layer with enabled editor tracking overwrites edited creator attribute

trying to publish a populated feature layer via ArcMap 10.2.2 (share as > service) to ArcGis Online with Editor tracking enabled, without having all "Creator" and "Editor" Attributes being overwritten ...
2
votes
2answers
103 views

Update field based on spatial query (QGIS)

I was an intermediate user of MapInfo and have recently converted to QGIS. I would often use MapInfo to add a column in boundary file A saying which zone in boundary file B it is contained in. ...
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0answers
16 views

QGIS .shp joined to xlsx.vrt; Classify works, Rule-based does not

Very simple set up. Tiger .shp file as a layer. Has a join to an xlsx non geo attribute table as a .vrt .shp has join on MTFCC to MTFCC in xlsx.vrt. xlsx.vrt, has a string field with a brief label ...
1
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1answer
21 views

QGIS - Have spreadsheet with col from 0% to 100% plus null want 100 bin gradient plus one more for null

Newbie alert. Have a spreadsheet with no geo; has a col with values in there from 0% to 100%, plus several blanks/nulls. Ideally would like a 100 step (bin) gradient fill from 0 (100% black) to 100 ...
4
votes
2answers
124 views

How can I delete multiple field attribute values from an attribute table?

I have a Centerlines feature class to which I transferred attributes from an AddressPoints feature class, and now each centerline has the correct street name but also a street number which I don't ...
3
votes
1answer
22 views

Selecting trips that their pickups and dropoffs are located in the same polygon in ArcGIS

I have point features indicating the taxis' trip data for pick-ups and drop-offs like the following: [pickup_longitude, pickup_latitude, dropoff_longitude, dropoff_latitude, #passengers] I want to ...
2
votes
1answer
44 views

Performing Statistics operation on field in Attribute table?

I am working with the Shapefile consisting set of points. One of its field (let's call it X) contains numeric data, ranging from 0 to 1. In order to find out the average value of field X, I opened ...
2
votes
1answer
39 views

Export RAT (KEA driver) to Shapefile

I have a dataset of rasters (driver kea) whose has, let's say, 20-30 attributes in their RAT. I'm realizing how to have these attributes in shapefiles (without using proprietary software). I've read a ...
2
votes
1answer
68 views

Rename cells in Attribute Table to 'XXX.$ID'

I feel like this should be easy to answer, but I can't get it to work for me. I need to edit the attribute table of a .gpx file before I load it into my GPS, in order to label the points. I can rename ...
3
votes
3answers
79 views

Can't replace attribute with field calculator

I have an attribute table where one of the columns (laeskaerm) has been edited/created by checkboxes on 2 different machines. Result: it contains both 1, 0, true, false and NULL I'd like to replace ...
2
votes
1answer
50 views

Creating definition query on layer excluding decimal values in ArcGIS for Desktop?

I am working on a layer of spot height in ArcGIS 10.3. The attribute table of this layer contains a field called 'Elevation' wich one provide the altitude of these spots height. These values can be ...
2
votes
0answers
28 views

Adding attribute data together within multiple polygons in QGIS? [duplicate]

In QGIS I have two vector layers, the first is a set of polygons and the second is a series of points. Each point has a numerical attribute associated with it and is located within one of the ...
2
votes
3answers
53 views

Add value to entire column in attributes

Is there a way to add a value to the entire column? I don't think i can use raster calculator because it's a text i want to add, the letter "B". Here is a picture. This is what happends when i use ...
2
votes
0answers
71 views

Using attribute table values as input for raster calculation - modelbuilder and iteration

I have multiple years of daily XY point shapefiles that contains multiple attributes. I would like to choose one attribute from my XY point and perform a raster calculation with that value and apply ...
0
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2answers
222 views

Adding one search box for multiple GeoJSON polygon layers?

Multiple GeoJSON markers can be combined to one group layer then search on a specific attribute but doesn't work for GeoJSON polygons. How to put multiple GeoJSON markers and polygons in one search ...
0
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1answer
36 views

Converting column with data type string to double using ModelBuilder?

I am using ModelBuilder to create a tool. In the middle I have to convert the string values of two columns of a data (in attribute table) to double (for calculations in later steps). Can I do this ...
3
votes
1answer
103 views

Adding date field to attribute table using QGIS processing modeler?

I want to add a date field to my output layers attribute table, using processing modeler. I want the Date field to be a parameter in my model, because I want to manually input the Date everytime I ...
1
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2answers
35 views

ArcGIS Attribute table add field and summarize certain categories?

I try to summarize CorineLandCover12-classes together to a higher level into a new column. For example: 1.1.1 continous urban fabric plus 1.1.2 discontinous urban fabric should become 1.1 Urban ...
2
votes
2answers
116 views

How to add attribute table to new shapefile using OGR?

i have made a new shapefile from the original shapefile , and now i want to copy the attribute table from the original shapefile to the new select shapefile , but i don't know how to do that? import ...
1
vote
1answer
38 views

How to permanently change Arcmap table display?

At Arc 10.0 I can configure the properties of an Arcmap numeric table field using its Field Properties > Numeric... > and then clicking the "Show thousands separators" checkbox on. But I would like ...