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Questions tagged [geometric-network]

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 define the roles that various features will play in the geometric network and rules for how resources flow through the geometric network.

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ArcGIS: Extract portion of a geometric network that exists 30 mi downstream of intersection with another layer

I have a network of streams (National Hydrography Data). I want to find every point where it intersects a rail line and then trace 30 mi downstream of those points. The final product will be the ...
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Automatic creation of polygons

How do you automatically create adjacent polygons in QGIS whose size depends on an attribute of another layer? I have a layer with community areas and the corresponding number of inhabitants and ...
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Converting geometric network's edge to Feature Class using ArcObjects and C#?

I'm tracing a Geometric Network with Forward Star. While tracing, I Also want to visualize the network edges after each trace. So I created a feature class of feature type Complex Edge (I have tried ...
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What is “Current Status” (IMMCurrentStatus) in ArcFM Downstream Trace?

I'm trying to develop a custom downstream trace Addin for ArcGIS using .net (C#) Miner.Interop.Framework Assembly. I'm using TraceDownstream Method from the ArcFM Desktop Developer Guide and ...
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Pipes do not connect to each other - geometric network

I have created a geometric network in ArcGIS for Desktop. Some of the pipes are not logically connecting to each other even though they appear to geometrically intersect. Can anyone tell me how to ...
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Geometric networks (networkx) in PyQGIS

I'm working with code from the Disconnected Islands plugin in QGIS x64 and Python 3. Normally, the plugin uses networkx to create a geometric network and ends by writing the FID of features with no ...
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Disconnected features in Python, QGIS

I'm working with code from the Disconnected Islands plugin in QGIS x64 and Python. Normally, the plugin ends by writing the FID of features to a CSV and their corresponding network group ID. Instead, ...
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Using Geometric Network toolbar?

I've been using the Geometric Network tools for quite sometime now to trace electric distribution networks for my job and all of a sudden when try to trace the circuits and connected features from ...
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1answer
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Added lines to an existing feature class and geometric network are not included in a geometric network trace

I have a stream layer for a watershed. These streams are topologically correct where each line's geometry stores the correct flow direction and each end connects to the start of the next downstream ...
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Creating Hydro Hierarchy in ArcGIS Desktop? [closed]

We recently ran at work into this model created by ESRI for the rivers in the US: https://maps.esri.com/rc/radial/index.html Code: https://github.com/richiecarmichael/Esri-Hydro-Hierarchy In order ...
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1answer
68 views

Calculating Distance from Outlet to Dam(s) using ArcGIS Desktop?

I am trying to carry out what should be a relatively simple analysis of river network fragmentation by dams. Similar questions have been asked as: Obtaining length of river upstream of points up to ...
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2answers
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Arcpy code to loop trace geometric network give out of memory error

I have a distribution of points on a geometric network. I have code to select a point, run an upstream trace on the network, select intersecting polygon features, sum some attributes from those ...
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1answer
49 views

Adding new field to feature class?

I'm using one of the esri model sewer system geodatabases. It includes empty feature classes and a geometric network. i need to add a field to one of the pre-made feature classes, but it won't let me....
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ArcGIS Trace Geometric Network Tool Trace using Find Common Ancestors gives error

I have a geometric network stored in an ArcGIS 10.5 geodatabase. These lines represent all the river paths in a watershed. The lines associated with this network have the required flow direction ...
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1answer
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Drawing a map using time as metric instead of distance in QGIS

I am used to drawing maps in QGIS and overlaying on top them a road network map showing the distance between places, its a useful way of showing information about roads. But I am aware that its not ...
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1answer
41 views

Storm water Geometric Network Tracing Catch Basins

I am using ArcGis 10.3 and am trying to trace a geometric network from a catch basin to a catch basin lead to a mainline ultimately to a storm pond. Flow direction is set correctly using digitized ...
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Removing loops from geometric network?

I have geometric network of a river system and I used the SET FLOW DIRECTION tool in ArcGIS 10.5 to attribute flow direction to the network. The Problem is that almost 50% of the network comes out ...
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PostGIS recursive query in order to find the longest connected subnetwork in my line network

Let's said that I have this line network: The goal is to find the longest connected subnetwork. So I want to find all the line's ID that are connected to the line with the ID = 1 because I know that ...
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2answers
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How to create “roof line” for a general polygon area?

I have a polygon with an arbitrary shape ( assume that it is well-formed with no self intersection, no duplicated points etc), and I need to subdivide the polygon into sub-polygons like how one would ...
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Count features on geometric network between two points

What geoprocessing tool or process will let me count the point features on a geometric network between a specified start and end point?
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Why are multipart features not allowed in Geometric Networks?

I'm beginning to familiarize myself with Geometric Networks in ArcGIS Desktop, and according to About Verify Network tools and commands, multi-part features are not allowed, but they do not explain ...
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Create a Geometric Network - Error

I'm trying to create a geometric network in a FILE GEODATABASE, but I get: Error: Cannot create geometric network. The selected feature dataset does not contain any feature classes which can ...
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Cluster Points on spatial network in R/QGIS

I am searching for a method for clustering spatial points along spatial lines. The points are connected to the lines. I tried nearest neighbour clustering and gProject/gInterpolate from the rgeos ...
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Creating Adjacency Matrix using SpatialLinesDataFrame and SpatialPointsDataFrame in R?

I am trying to create an adjacency matrix of power plants that are connected via power lines. The plant data is point data (~8000 observations) with longitude and latitude measurements. The line data ...
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Link the edges and the nodes with a relationship class table in a geometric network

I have a bus network in arcgis composed by: The Bus stops (points) The Bus lines (multilines) A relashionship table who link the stops and the line So the relationship (Many-to-Many) contains a ...
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Seeking Tutorials on Geometric Networks [closed]

Does anyone know of any tutorials I can download online or anything of the likes that I can use to better my understanding of how to use or create the geometric network? I'm working on a sewer ...
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1answer
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Private Surface Water Mains In Between Public Mains Analysis

I am working in a geometric network of a surface water (stormwater) system. We have both public and private assets (pipes/mains, manholes, inlets/CB's, etc.) in the network. I am doing a bit of QC on ...
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1answer
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How to detect geometric network issues (exhaustive check within extent), and repair them using ArcObjects

I am trying to use this tool which can be found in the ArcToolBox under data management, geometric network I need to access this tool using ArcObjects because I have loaded features into their ...
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2answers
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Finding “terminal” cities on the map

I want to find villages/cities which are ends. That means: I need this villages which are linked to maximum one village on a distance of X km. I'm just wondering how is this algorithm is called (I ...
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2answers
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Performing isolation trace that ignores one valve type before stopping at another valve type in same feature class using ArcPy?

The map below is based on test data generated by the code that follows. That code: Creates a file geodatabase (test.gdb), with a feature dataset (TestFD), and in that feature dataset there are two ...
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1answer
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Calculate id network

In Postgis/Postgres given a set of linestrings with topological connected edges, how can one calculate a unique id (network id) grouped by a set of attributes. Installed postgis/pgrouting and looking ...
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1answer
38 views

Collecting geometric network distances and updating field with these distances for whole feature class?

I have a geometric network representing a golf course irrigation system. The pump house is the only source and each irrigation head is a sink. I want to update a field in the heads fc ([Dist_from_Pump]...
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2answers
118 views

Identify intersecting angles for line features in ArcGIS

I have recently concluded a city-wide water utitlity GPS survey. within a geometric network, I've moved the source (pre-GPS) point features to their GPS positions. where the old data was ...
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Troubleshooting pythonw.exe has stopped working with Trace Geometric Network? [closed]

I have not yet pulled this down to a code snippet that has just enough in it to reproduce the error below that I am getting when I run my code in IDLE. pythonw.exe has stopped working Windows is ...
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1answer
358 views

Performing water valve isolation trace using ArcPy?

The utility that I am working with for a couple of weeks has access to the ArcFM Water Valve Isolation tool which enables them to point from ArcMap at a location on their SDE Geometric Network and be ...
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1answer
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How to See The Attribute Result Of Geometric Network Trace

Running ArcMap 10.4.1 I can trace a geometric Network and see the Graphical returns of Junctions and Edges inside the network but can you please let me know How/ Where I can see the Attributes return ...
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ArcGIS Geometric Network: match downstream segments with their ultimate upstream source

I have a geometric network that represents a combined sewer system. The network functions as expected - I can set flags and trace upstream and downstream. My goal is to identify all of the ultimate ...
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1answer
147 views

What is Stopping Geometric Network Trace While No Barrier Specified

I have an Electric geometric network which has a Generator as a Source and Flow has been set up like below image: What is stopping the tracing when no Barrier been specified? For example: As you can ...
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206 views

Fish passage connectivity analysis using geometric network traces?

We are looking at the connectivity between lakes and the ability of fish to pass between them, considering that downstream presents no barriers for these fish but swimming upstream does (barriers = ...
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1answer
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Find flipped lines in ArcMap geometric network?

I have been working on a project tracing lines in a geometric network. I have had to reverse the line (flow) direction on many lines to make the traces work. Now I am at a point where I have to ...
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1answer
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Copy field value from a point feature class to another field in a line feature class

I have a point feature and a line feature in a geometric network. I am trying to find a way ( Tool or script) to copy values from a field in the point feature and paste them in the line feature. Any ...
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1answer
161 views

Geometric Network trace in ArcGIS: trace downstream with loops included

I am looking for a way to make a “trace downstream” in a geometric network in ArcGIS where loops are included too. With the trace-operation “trace downstream”, the loops are not included. I know ...
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1answer
806 views

Programmatically infer start and end points from a Polygon with linear characteristics

Question: Given a Polygon exhibiting linear-like qualities (long and thin, with clear extremities upon visual inspection), is there a reasonable/defensible order of operations to compute "start" and "...
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Network, route, topology

I have two feature classes. One is a point feature class, the other is a line feature class. The point features all intersect the line feature. I want to route the line feature (have line symbology ...
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1answer
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How to Remove Existing Weight From A Geometric Network

I have seen the solution to "Remove Connectivity Rule From Geometric Network" using ArcGIS ArcPy, but in my case I need to remove an existing Weight from the Geometric Network. Can you please let me ...
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Issue on Updating Geometric Network Weights - Error: -2147210918

Using ArcGIS 10.4.1, I am trying to add New Weight (Bitgate Type) to an existing Geometric Network but after couple of minutes I am getting this message The network weights were not updated FDO ...
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0answers
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Adding Spatial Index for Geometric Network?

I am trying to create Spatial Indexes on all the feature classes in one of my databases. It has worked fine on most feature classes so far, but when I started on feature classes in a feature dataset ...
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Creating stacked pipeline profiles using water utility network tools?

I downloaded the water utility network editing tool to create profiles of our sewer and storm systems including manholes with elevations. The profiling tool is pretty easy to use as you just click ...
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2answers
131 views

Adding Geometric Network Trace to Map Using ArcPy

I am able to run Geometric Network Trace by using following ArcPy script but I also need to add Trace result into the map. Can you please let me know how I can add the result(graphic/geometry) to the ...
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1answer
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A tool to “display arrows” in a model in geometric network,

I am trying to find a tool to “display arrows” in a ModelBuilder model in geometric network. I couldn’t figure out if there is a tool that can be added to the model to display the arrows as we do ...