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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0answers
18 views

Creating new empty vector layer that has same set of atributes as another layer and then copying subset of features into it?

I am new to both Python and QGIS. Here's a sample of my code: unique = layer.uniqueValues(index) attributes = layer..dataProvider().fields().toList() assistant_layer = QgsVectorLayer("Point", ...
0
votes
0answers
9 views

Iteratively Change Object's Instance Attributes PyQGIS

I am trying to create new instance attributes (NOT feature attributes) for a collection of features in a vector layer in PyQGIS. I'm getting some weird results and am wondering if this is even ...
7
votes
3answers
247 views

Zoom from one feature to another in edit mode?

I have to manually edit a shapefile of a couple of hundred points. I would like a quick way to jump from one point to the next in both the attribute sense and the visual/spatial sense i.e I would ...
1
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1answer
31 views

Copying attributes from point layer to memory linestring layer PYQGIS

I've stacked a little bit with copying attributes. I have a Point Layer created from .csv file. For each feature in this layer, I'm creating a new Polyline geometry in memory layer. Cannot add ...
1
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1answer
27 views

How to style a vector layer in QGIS using hexadecimal color code stored in attribute?

I have a polygon shapefile storing hexadecimal color codes in a specific attribute. gid | label | color ---------+-----------+------------ 1 | Crops | #FF5F2C 2 | Forest ...
1
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1answer
41 views

Processing modeler: how to dissolve a vector layer and sum the attributes

I have a complex workflow prepared in the processing modeler, but I'm missing one step to link all the model. As said, I need to dissolve a polyline vector in a single line vector that has as ...
0
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0answers
42 views

Joining two features (points) with same position but different attribute using ArcGIS for Desktop?

As shown in the figure below, these two points are in the same position but with different attributes. (TextString). I am wanting to join these two points together but with different attribute in ...
0
votes
1answer
35 views

Editing attribute tables in ArcMap

I have a point shapefile with several fields. Among these fields is a comment field. I would like to be able to zoom into each point and add a comment into this field in real time without having to ...
1
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1answer
29 views

QGIS Attribution and Geometry Query Question

I am trying to use select by expression to query lines that contain certain attributes and that there geomerty touch. In other words are connected or neighbor each other. I tried a query such as ...
2
votes
1answer
33 views

QGIS updated polygon areas

I'm using QGIS 2.6 and regularly update a shapefile layer to indicate felling progress. However, if I edit the nodes of a polygon, save the layer out then look at the Attributes table the area shown ...
0
votes
1answer
15 views

Assigning an NTA code to a point feature class from a polygon feature class

I have a point feature class and a polygon feature class (NTA - Neighborhood Tabulation Areas). I want to assign each record in the point feature class an NTA that it falls into. Also, neither of ...
-1
votes
1answer
37 views

Feature Attribute Count Script

Using an arcpy script how do I get the feature attribute count per feature class in a fileGDB? Ideally I would like to output to a spreadsheet, with the feature class name in one column and the ...
1
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1answer
31 views

How to easily change/edit existing field datatype in shapefiles? [closed]

I am editing attribute tables of multiple shapefiles for a future project. I need the field data types to be very specific and uniform among all the shapefiles. I am running into the problem that the ...
2
votes
1answer
79 views

How to plot certain values of a column in R?

Lets say we have a shapefile of cities with a column called category cities@data category A B A C A A B C How can i plot the A category only etc? Tried c<-cities$category[A] ...
0
votes
0answers
20 views

Change display text for hyperlink in attribute field in ArcMap?

I have an attribute field that I would like to be able to click the title of a document and it would open the document. But I do not want the field to display "C:/path/file1.pdf", I would just like it ...
1
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0answers
31 views

PyQgis - Adding attributes to a POSTGIS layer

After reading @underdark's answer to this question on creating a new vector layer and @Matthias Kuhn's to this one on field calculation, I wrote a script that allows me to calcultate the mean ...
1
vote
1answer
62 views

ArcGIS how to capture attribute data from another layer

I have an arc layer with points and another with lines. The points exist along the lines (as stations). Both layers have an attribute for LineName. How do I pass the specific line name data to the ...
4
votes
2answers
44 views

QGIS create a line graph with attributes value on a section through the map

I wonder if I can make cross sections of GIS data (other than height). An example: I have a shapefile of a city with building plots and attribute values of the plot size. I want to choose a random ...
0
votes
0answers
20 views

AutoCAD to GIS Standards for Easy Import

Trying to setup an AutoCAD Template that will be easy to import into Arc geodatabase. What is the best way to assign attribute data to cad features without using blocks? Is there a way I can setup a ...
0
votes
1answer
62 views

Compare Multiple attributes visually

I am working on a project in which I want to take point features( tweets) and compare them to the GDP per capita of countries. I would like to have my end result be such as the following: GDP Class ...
1
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2answers
59 views

Combine multiple records into one based on ID

I have a table that has the building width for each side and I want to combine them together in GIS. I have attached an example in which I have 4 rows for one building, and I want only one row per ...
0
votes
1answer
22 views

Double Entries/ Errors with Digitizing Polygons

I have a layer that has errors, i mean polygons have double entries (digitized twice), i can edit manually but there's a lot of attributes and it will take ages to clean the data. Is there any short ...
1
vote
1answer
57 views

Automatically changing the angle of a symbol in QGIS?

I am working with an iron age cemetery in QGIS. I marked every grave in a point layer with several columns; amongst others, burial rite (inhumation, cremation etc.). I inserted a second column for the ...
0
votes
0answers
21 views

Adding values from a text file to a gridded area on my map [duplicate]

I have a .txt file with comma seperated values. Each individual value corresponds to a cell in my grid. The first value in the .txt file corresponds to the cell in the first column and first row of my ...
1
vote
1answer
52 views

Adding data from a table to a grid in ArcGIS

I have a table with 720 rows and 156 columns. I have a grid with 720 rows and 156 columns. I would like to assign the values from the table to the corresponding values in the grid. I am a beginner to ...
4
votes
1answer
75 views

How to add an attribute with QGIS 2.8.1 Python console?

i would like to add an attribute with the python console: from PyQt4.QtCore import * from PyQt4.QtGui import * layer = iface.addVectorLayer("C:/donnees_SIG/05.shp","nou","ogr") layer = ...
1
vote
1answer
72 views

How to split attributes using FME

I am trying to split an attribute into its component pieces with FME. Ex: 1707 WILLINGTON ST, PHILADELPHIA PA 19121 into: 1707 WILLINGTON ST, PHILADELPHIA, PA, and 19121 I am using the ...
0
votes
0answers
44 views

Is there a way to copy attributes from a point layer in an overlaying polygon layer? in arcGIS10

I'm working with an agricultural experimental setup of 450 areas. Each area is represented of a Polygon in ArcGIS and additional with a point Layer. I determined the specific ID for each point but I ...
0
votes
0answers
30 views

Checking if Terrain Model has pyramids or data sources using ArcPy/Python?

I asked this question in the Esri forums and got nothing but a lesson on LAS point cloud classifications—not even remotely what I had asked. I’m hoping someone here can point me in the right ...
-1
votes
1answer
21 views

Converting start/end easting/northings to a single point for visualisation

I have eastings and northings for the start and end of 5m sections of the UK railway network. I want to convert these points to a central point between the start and end so I can visualise the ...
-2
votes
1answer
42 views

How to get all feature and attribute list from OpenStreetMap? [closed]

I want to get the list of all features their attribute list for my application from OpenStreetMap. Where can I get that?
0
votes
1answer
67 views

How to get arcpy to access attributes of a geometry?

As a novice python programmer I am struggling mightily with my code. What it is supposed to do is Buffer a bunch of points with four distances (100, 200, 300, 400meters) Calculate zonal sum for ...
1
vote
2answers
45 views

What is the strategy to add attributes to shapefile when the number of records are not the same?

I'm trying to add attributes (in excel format) to an existing shapefile using ArcGIS, but the number of records between the two are not the same; there are some records in one file but not in the ...
2
votes
1answer
60 views

Finding diameter of pipes on either side of valves using ArcGIS Desktop?

I'm using ArcGIS desktop 10.2 and I need to find the diameter of pipes which are either side of a particular valve. There are over 2000 of these valves on my map so I'll need some sort of tool. The ...
0
votes
0answers
13 views

joining attributes for .img files in erdas

I have numerous .img files of the same region and spatial resolution. In Imagine I would like to join all the attributes together into one .img that I may import into r for model predictions. Not ...
1
vote
1answer
60 views

Why does ArcMap show quantities for values that are not in attribute table?

I've joined a csv file of values (0-100) (created in Excel), with local authority boundaries for the UK in ArcMap 10.1. I want to display the percentage of these areas not receiving 3G mobile ...
0
votes
1answer
41 views

Generate Service Area Polygons with Field(s) Added

Does anyone know of a way to generate service area polygons which, when created, maintain a field from the feature class from which the polygons are generated? For example, if I am generating a ...
1
vote
2answers
51 views

How to remove a certain number of digits from the front or end of an attribute field?

Can I use the filed calculator in QGIS somehow to remove the first 4 numbers in all attribute fields in a column? Example 16011234 -> 1234 EDIT: Silly, I can just subtract with 16000000 in this ...
0
votes
3answers
61 views

Creating layers for each attribute value via Arcpy script

I'm having some trouble starting this script. Not sure how to start, as I have to create/output layers for each attribute value from a certain column named that has integers. They are all unique ...
3
votes
1answer
185 views

How to summarize a column in QGIS field calculator

I have data with a column containing a number value, and I want to divide the value of each feature by the total sum of all the values in the column (to get a percentage). So I would like to know if ...
0
votes
1answer
136 views

Google Earth Pro to ArcGIS 10.2 WITH Attribute table

I'm trying to use a publicly available map of NYC's CSOs from Google Earth Pro in some GIS analysis. I've saved the file as a KML, and uploaded to GIS by converting it to a SHP, but the attribute ...
1
vote
1answer
132 views

Removing duplicate data using FME

There are three roadkill data sets from three different institutions. We are sure that a combined data set will have duplicates. The three institutions will probably record their data differently: ...
0
votes
0answers
25 views

QGIS Import Interlis name of attributs

Why if i import Interlis 1 files to QGIS 2.8.1 / 2.6.1 there is no identification of the attributs names in each tables? The interlis model is correct (I've also tested an ITF-file with the federal ...
1
vote
1answer
51 views

Copy attribute data from one polygon shapefile to a multiple point shapefile

I have two shape files: Polygons of parks in Africa. Each park (polygon) has a row of data regarding it's size, name, date of establishment etc. Random points in parks in Africa. Here, I generated ...
0
votes
1answer
26 views

Assigning values from one polygon to second polygon if located within first using ArcGIS for Desktop?

I have two layers of polygons. I would like to know if there is a way to assign a value from a polygon in the first layer to any polygons from the second layer that fall within that polygon?
1
vote
1answer
62 views

QGIS Spatial Сross Join atrributes

I have a set of LineStrings (streets) And a set of rectangles (atlas pages extents) rectangles could overlap each-other. And now I want to create a legend for atlas like street1, pages: 1,2 ...
1
vote
1answer
57 views

QGIS equivalent to MapInfo Sum Attributes for selected vector objects?

I´m looking for QGIS equivalent to the basic MapInfo tool "Sum Attributes". I´ll explain what it does: For selected objects in a vector layer, a popup window shows basic statistics such as: - Sum ...
0
votes
0answers
19 views

Extract table-embedded attributes in KML using ogr2ogr

I'm loading a number of diverse data files into a PostGIS database, using ogr2ogr. One of these data files is a KML with useful attributes embedded as an HTML table in a description column: ...
5
votes
2answers
75 views

Is it possible to have the attributes fields already filled from the previous object?

I need to create a lot of points with lots of attributes, but most of the fields are the same, so I don't want to edit all the fields all the time. Is there a "remember previous fields" function ...
2
votes
1answer
48 views

How to update a column in a layer with NULL currently to nearby value in QGIS?

Currently I have a layer with construction year attributes in it. Not all of these are filled out and I figure it is reasonable to update them with the construction year of the nearby elements as they ...