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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10
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1answer
2k 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
1answer
4k 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 ...
5
votes
2answers
724 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
264 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
815 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
2answers
384 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
1answer
1k 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 ...
4
votes
2answers
450 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 ...
4
votes
2answers
181 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
254 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
0answers
187 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 ...
4
votes
2answers
880 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 ...
3
votes
2answers
281 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 ...
3
votes
1answer
164 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 ...
3
votes
1answer
210 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
261 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 ...
3
votes
0answers
293 views

Geometric Network for Electric Utilities

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
77 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
190 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 ...
3
votes
0answers
217 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 ...
2
votes
1answer
291 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
510 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
36 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
80 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
77 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
280 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
46 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
34 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
1answer
131 views

Generate new geometric network from intersection between curent network and polygons

Ok I've been battling this one for a little while. I have generated a stream network using the "Strea Reach and Watershed" tool from the TauDEM toolbox. Within the stream reach dataset there are ...
2
votes
0answers
170 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
76 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
0answers
93 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 ...
2
votes
0answers
195 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
0answers
202 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 ...
1
vote
1answer
145 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
142 views

Is editing geometric network in versioned geodatabase any different from when such data is stored elsewhere?

I need to work on "Checked Out" version of a geodatabase, editing geometric networks. What will be the difference in terms of the working process of the editor ?-do i need to use some special toolbars ...
1
vote
1answer
85 views

Incremental network loader Error - Geometric netwotk QA

Trying to merge 2 geometric networks with Incremental network loader I got this error - How can I find this Closed polylines at my geometric network ?
1
vote
1answer
727 views

Determine use of pipes in a geometric network

I am trying to understand how to use the Geometric Networks in ArcGis 10.1 For the purpose of my experiment, I built a simple network composed of a few connected pipes, one source (left triangle) and ...
1
vote
1answer
343 views

Can we create relationship classes based on a geometric network?

I have a point Feature Class and a polyline Feature class which I connected in a geometric network. I also need to connect them logically. In my theoretical model, an edge is defined by the two points ...
1
vote
1answer
55 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 ...
1
vote
1answer
158 views

How to get started with mapping the flow of gas pipe network using GIS?

I'm looking for some specifications, whitepapers and any other related material about urban gas pipe networks in particular about geometric network rules that are special to gas flow.
1
vote
1answer
549 views

Error during reconcile: "The version could not be reconciled. Invalid network element id : Field is not editable

While reconciling a child version with the parent version, in a dataset containing Geometric network, the following error was noticed. Error during reconcile: "The version could not be reconciled. ...
1
vote
3answers
98 views

Using weight in geometric network to Find Path Upstream

I have a problem about using weights in geometric network in ArcGIS Desktop 10.2. In the example below, I have a simple network with a source & some junctions. I'm trying to use the Find Path ...
1
vote
1answer
98 views

Unable to create geometric network. Feature classes unavailable

When I try to create a geometric network 4 of my 9 feature classes are 'unavailable'. When I click on the 'unavailable' button it states that each feature class has an 'Invalid 'Enabled' field type' ...
1
vote
1answer
61 views

How do I apply selected features from a output group layer to the same existing group layer?

I am doing a geometric network project, and am running 3 trace process within a model to find connected features to a set location on the network. Each trace function wants to output its own group ...
1
vote
1answer
91 views

How to create a barrier feature class to use in a geometric network?

I am working with the NHD and need to isolate stream segments upstream of barriers. I have too many barriers (thousands) to do this manually using the Geometric Network barrier tool on the toolbar. ...
1
vote
1answer
300 views

How to build, store and index a road network from a digital city map

I'm totally new to this domain so my question may sound like a little bit silly…… I'm eager to know how to extract, store and index the coordinates of the road segments(edges) and intersections or ...
1
vote
1answer
57 views

Geometric Network Downstream River Tracing?

I'm using ArcGIS 10.2 Desktop and I need to trace downstream on a river network from a Discharge point to another point where the river intersects polygons of interest. The distance from each ...
1
vote
0answers
37 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 ...
1
vote
0answers
74 views

GeoJSON to routing graph

What are the best automated ways of placing the nodes and edges of a routing graph using the GeoJSON data of a multi-level building? What other data is needed (area layout, accessor directions etc)?