A geometric network is a set of connected edges and junctions (nodes) along with connectivity rules that are used to represent and model the behavior of a common network infrastructure in the real world. Geodatabase feature classes are used as the data sources to define the geometric network. You ...

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11
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1answer
3k views

Difference between network dataset and geometric network in ArcGIS Desktop?

In ArcGIS Desktop, what is the difference between a "network dataset" and a "geometric network"? Are there differences with what can be done with each?
6
votes
2answers
2k views

Assign point IDs to respective start and end attributes of a polyline

I have two shapefiles, Point and Polyline. I'm trying to populate my polyline layer with the point data ID (systemID) where the lines start to where they end; eg. create two columns (from and to). The ...
6
votes
1answer
5k views

Analyzing Flow direction in Geometric Networks in ArcGIS

I have a task in ArcGIS which involves using Geometric Network and right now I am experimenting with Set Flow direction function from Utility Network Analyst toolbar in ArcMap. I've read section Flow ...
6
votes
2answers
477 views

What is the algorithm used by ESRI for finding loops in a geometric network?

I've been trying to develop some code for ArcMap (VB .net) that would take a river network, identify and label the loops. These loops can be simple bifurcations or highly thread braided channels. I ...
5
votes
2answers
788 views

How to identify polylines with multiple end/starting points?

I'm looking for a way to programmatically identify polyline features which do not represent a 'simple' line from A to B but instead have several starting and/or end points. These are called complex ...
5
votes
2answers
347 views

How to check if Waste-Water Manhole connect to lines with the right flow direction?

I have a waste-water geometric network with flow direction throw digitize direction. I want to check if each manhole have a line flowing in and a line flowing out. Is there an attribute of line vertex ...
5
votes
1answer
948 views

Geometric Network - Listening to network feature connection changes in the IObjectClassEvents::OnChange event

I need to be able to tell when a particular type of feature, that participates in a geometric network, is having its geometry automatically modified due to the geometric network. What i mean is that ...
5
votes
1answer
2k views

Where can I find High Quality Road Network Information

I am carrying out a research on how complex city road networks get and I need to get accurate map information. I started with openstreetmaps however I ran into a couple of issues: some of the dumps ...
5
votes
1answer
271 views

Is it a bad idea to use a geometric network for road editing?

I am producing a road map (for print and online). I was thinking of using creating a geometric network with my roads, for editing purposes mainly, but I would like to know any critical downsides of ...
5
votes
2answers
1k views

Unable to create a geometric network in a PostgreSQL Spatial Database Connection

I've created in ArcCatalog a Spatial Database Connection to an PostgreSQL database server. I've imported there all my data (from a local hard drive) and now I want to edit them. But apparently I ...
4
votes
1answer
109 views

Why can't I see v.net in QGIS GRASS tools

I have noticed answers such as Is there an open source tool to planarize graphs? stating you can use GRASS v.net from within QGIS. However I can't see it - my QGIS processing GRASS toolbox contains ...
4
votes
1answer
165 views

ArcGIS Geometric Network - Identify Indeterminate Flow

We have a geometric network with sewer pipes that have their flow direction based on digitized direction. Some of the pipes, however, have indeterminate flow. We would like to find all the pipes ...
4
votes
2answers
424 views

Automate Naming of Stormwater Network (Geometric network)

We have a geometric network representing our stormwater network. For anyone unfamiliar with stormwater drainage networks, they are composed of pipes and pits (simplified for this question). Pits are ...
4
votes
1answer
396 views

Calculating attribute for network distance between multiple points in ArcGIS Desktop?

There is a road network and two point feature classes. For one feature class, I need to calculate a field to hold road (not Euclidean!) distance from every point to a certain point in the other ...
4
votes
2answers
226 views

Summing volumes through a pipeline system

I need to fill a volume attribute for a pipeline system. Volume would come from a well at the end and I can easily start with a spatial join to get volume for all the line segments at the edge of the ...
4
votes
1answer
412 views

PostGIS table to network analysis

I use PostGIS 2.0 and Python API (GeoAlchemy) to work with it. I want to convert topological informations (points, lines, faces) from PostGIS tables to topological network (points, lines) to study it ...
4
votes
1answer
273 views

Can a Geometric network be hosted in a Spatial Data Service?

I'm wanting to deploy a geometric network to Sql Azure, where clients can trace through it. The Spatial Data Services Deployment Utility allows me to deploy each featureclass from a geometric network ...
4
votes
0answers
248 views

How to repair Geometric Network in Versioned ArcSDE Geodatabase?

Our Versioned ArcSDE workflow has a feature dataset with Geometric Network in the parent (Default), which users derive in their own versions. It is now observed that in some versions, the geometric ...
4
votes
0answers
200 views

How to assign attributes from hydrologic sinks to upstream features? [closed]

I have a large hydrology geometric network with more than 300 sinks and roughly 150 barriers. I'd like to have the SinkID added to the attributes of the barriers (some individual networks have a ...
3
votes
1answer
65 views

Importing / copying data from PostGIS to ArcGIS / ArcMAP

So, I'm working on a project using Postgresql and Postgis. We have a client using ArcGIS (10.0) and ArcFM. We are trying to export some data from postgres to ESRI, but we have our hands tied quite a ...
3
votes
1answer
63 views

Incremental Network Loader failing with ArcSDE Geometric Network

I've been testing the Incremental Network Loader tool for loading new lines into a geometric network from an outside feature class. The tool worked perfectly on a File GeoDatabase copy of our SDE. ...
3
votes
1answer
195 views

How to set waste water gravitational flow direction using DEM automatically?

I have a Geometric Network of Waste Water and I need to set line digitize direction according to the gravitational flow direction using a DEM. I'm trying to avoid flipping manually 1000 Km of pipes.....
3
votes
1answer
248 views

ArcObjects/VBA to python Network edge to junction lookup IEdgeFeature equivalent in arcpy

In an effort to migrate a script that transfers attributes from a geometric network to a feature class (on a given network edge segment, what are the up and downstream junctions?) I would like to ...
3
votes
1answer
299 views

Shortest path to draw all polyline routes in geometric network without repeating

My problem is related to the "shortest path" problem, however it's slightly different in that I don't want to draw one path but to draw all paths without repeating any routes (as much as is possible). ...
3
votes
0answers
611 views

Geometric Network for Electric Utilities? [closed]

I'm not expert in the use of geometric networks nor in Python scripting and I need help with the following problem. I'm using ArcGIS 10.0. I have defined a geometric network for an electric ...
3
votes
0answers
84 views

How to find the minimum number of inspection points?

I am working on a pipeline inspection project and there is a high liklihood that some inspection tool deployment/retrival station will need to be installed on the pipe network. the problem is ...
3
votes
0answers
114 views

Alternative solution to ESRI's Geometric network for wet Infrastructure

I'll be glad for some help with "market research" on GIS for water pipes networks what are the differences between these solutions in compere to ESRIs geometric network GHydraulics WaterCAD V8i ...
3
votes
0answers
207 views

Assign Sink ID to upstream features in a geometric network

Looking for a way to automatically assign an 8-character Sink ID to every upstream feature in a geometric network. There are over 500 sinks and about 5000 points and lines upstream from those sinks. ...
2
votes
2answers
293 views

Trace Geometric Network won't execute in custom script tool

I'm trying to make a Python script tool which uses the Trace Geometric Network tool (10.3). My script works in the Python window, but as a script-tool, it runs and NOTHING HAPPENS. Messages state: ...
2
votes
2answers
97 views

How to get FeatureClass or FeatureLayer from FeatureClassID?

I did a network analysis with ITraceFlowSolverGEN and the method FindFlowElements(). Then I did a queryId's with INetElements which returns the FeatureClassId and OID. Now I want to get the ...
2
votes
1answer
83 views

Identifying flow of a Wastewater Network

I am trying to identify the flow path of a wastewater system. I am using Arcgis 10.3 and I have set up a geometric network system and identified the sources and the sink (sources = blue dots, sink = ...
2
votes
1answer
171 views

Esri Geometric Network - Error Code 18 (unknown)

We have created a geometric network in a Personal Geodatabase with ArcGIS 10.2.2 for Desktop. Each time we are getting an error code of 18 on a particular point feature. As you can see here, there ...
2
votes
1answer
1k views

How load data into file geodatabase tables with relationship classes to non simple data?

Further to my earlier question (Loading data into file geodatabase without rebuilding relationship classes manually?), is there any way to load data into GDB tables with relationship classes to ...
2
votes
1answer
724 views

How to get a city road network as line segments?

I want to have road-network information of different cities(New York for example) in the format of line segments(i.e. every road is represented by segment(s)). I want this for experimental purposes in ...
2
votes
1answer
138 views

Accessing selected features in the sublayer output from tracing geometric network

I have a geometric network setup with stream lines and water users. I am trying to use arcpy to automate tracing downstream of each node/junction in my geometric network to get userIDs for all ...
2
votes
1answer
111 views

Calculate upstream path

I have a river geometric network built that is fully operational with flow direction working. In ArcMAP when I trace upstream I get a selected feature that I can convert into a feature class (Data > ...
2
votes
2answers
158 views

Pipeline connectivity

I'm trying to find a way to determine pipeline connections located downstream a critical facility and score how far those connections are from the facility. Any Thoughts?
2
votes
1answer
328 views

ArcGIS 10 (SP 3) - Geometric Network - which features are moved?

In ArcGIS 9.3 Geometric Network, you can select which features can be moved when snapping. In ArcGIS 10 (SP 3) this functionality has disappeared and you either choose to have snap tolerance or not. ...
2
votes
0answers
29 views

Upstream trace in geometric network by number of segments

I am using a geometric network of a sanitary sewer. I am trying to determine the source of grease in the individual sewer segments. I know which segments that have been impacted by grease. I am trying ...
2
votes
0answers
381 views

Accessing results of trace geometric network tool in Python AddIn? [closed]

I'm attempting to write a python addin to ArcGIS that will carry out numerous traces on a geometric network using user specified flags/barriers. The first trace works fine and I'm able to access the ...
2
votes
0answers
49 views

How can I convert electric utilities into water utilities? [closed]

I have GIS information for transmission lines, substations, and power generation facilities. I was able to import it into ArcGIS easily and create a geometric network. However, I'd really like to have ...
2
votes
0answers
55 views

Selecting elements from network with shortest path in QGIS?

I have a network of vector elements (let´s say 70 elements) that are connected in each node. Actually, it is a pipe network built with the help of GHydraulics (http://epanet.de/ghydraulics/index.html....
2
votes
0answers
300 views

Collapse dual carriageway lines in PostGIS

I have OpenStreetMap data, which represents larger roads (e.g. dual carriageways, aka divided highways) as parallel lines. The question is answered for ArcGIS or Skeletron here, for example using ...
2
votes
1answer
84 views

Editor tracking on geometric network feature classes

Editor tracking is not working on my geometric network feature classes. Although I enabled the editor tracking - dates and times are not recorded in layers while editing. Is it impossible? or a ...
2
votes
1answer
366 views

from node to node geometric network arcgis

this is my first question here. ('cause i'm really jammed with this for severals days!) I'm really new to geometric network and geodatabase, I basically finished all the arcgis tutorial. Anyway I ...
2
votes
0answers
226 views

Bug in ArcGIS Spatial Adjustment with Geometric Networks?

I am trying to do spatial adjustment between two datasets as shown in the the figure below. The Pipe line(selected(green color)) is part of a Geometric Network. It has three vertices. When I ...
2
votes
1answer
311 views

Generate new geometric network from intersection between curent network and polygons

I have generated a stream network using the "Strea Reach and Watershed" tool from the TauDEM toolbox. Within the stream reach dataset there are fields that give an ID to the stream segment and ...
1
vote
1answer
196 views

Stream Trace to Select Attributes

I'm trying to work on a school project, but I only need streams up stream from a certain point. As you can see in the picture, I've run the stream trace tool upstream from a point i've created. I'm ...
1
vote
2answers
221 views

Implementing Trace Geometric Network into Model Builder

I would like to use Trace Geometric Network in model builder with the option to have a model parameter for the flags (like the flags I add from Utility Network Analyst Toolbar) and return the results ...
1
vote
1answer
230 views

Geometric Network Find Upstream

I am New to Geometric Networks. I need to build a river network and find all locations (polygons) upstream. This is the template I am trying to use. I have my rivers with to and from node and the ...