Linear referencing is the method of storing geographic locations by using relative positions along a measured linear feature.

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How to Create in Route Event layer with Right Angle?

I have collected GPS points along the road. and got Right angle Tape measurements of Boundary walls and other objects from that respective points. I have those records in Excel Sheet and GPS ...
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58 views

Linear Reference initial datasets

I am trying to work with Linear Reference system as I found It in ArcGis website: http://resources.arcgis.com/en/help/main/10.1/index.html#//003m00000002000000 But I'm losing something in the ...
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95 views

How to find chainage of points using LRS

I have a Shapefile of road that I have converted from a KML file (created on Google Earth) and a txt file containing lat long (from GPS) of points with some attributes. The points are not exactly on ...
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11 views

Create point on a line with given distance from end in PostGIS

Does anyone know how to create points along a line (MultiLineString geometry) with a given distance in PostGIS? I'd like to create points at a regular distance over a line, which represents a ...
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55 views

ArcGIS Linear Referencing successive overlay operations

I have 8 tables with RouteID, BeginMeasure and EndMeasure. I want to successively overlay them starting with the first two and then overlaying the result and the next table then the result of that ...
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83 views

Best method to find routes from a set of points

I have lines table (postgis enabled database) representing the streets. I have collected few gps points along a route and I would like to match it with the streets in order. Scenario - I am jogging ...
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80 views

creating shortest route using line segment layer as network locations

Using Arc10.2.1, trying to create a truck route that begins at one location on a county street grid and ends up in the same place, obeying a feature class of guard rail line segments throughout an ...
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77 views

How to locate events at intersections using linear referencing?

I am having problem in locating intersection crashes. Actually I have intersecting legs with their specified begin and end mileposts. I am trying to locate crashes based on the milepost values. ...
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25 views

Finding measurements of unknown points relative to reference points with known lat, long and measurements?

I am trying to measurements of the distance of multiple points relative to reference points of known latitude, longitude and measurements along a river. Is there tool that can do this? Would ...
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203 views

PostGIS: How to distinguish overlapping routes (i.e., LineStrings) based on their direction?

I have a set of routes which are represented by LineStrings in my PostGIS database. These routes represent journeys that people make. I want to come up with routes that (a) overlap, and (b) have the ...
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545 views

How to use the linear referencing plugin?

I need a guide how to use this plugin properly, I'm a newbie on PostGIS and I'm trying to use the linear referencing plugin of QGIS. I've created a database on postgreSQL with the postGIS extension ...
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268 views

Linear Referencing Methods: Station Equation origins

DEAR PEOPLE FROM THE FUTURE: Here's what we've figured out so far… I am working in the pipelines field, and I get in touch with the concept of the linear referencing methods, specifically with ...
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Make Route Event Layer snaps event points to vertexes?

In ArcMap 10.2.1 I have made a route event layer using the geoprocessing tool in the normal way, trying to add equidistant route events along a route every 1.6 meters. This works fine in all the ...
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85 views

Creating Route events in ArcGIS

In ArcGIS I have a set of routes, some of whose direction I change using the flip edit so that they are in the direction I require. I am able to make route event layers. However, why is it that after ...
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50 views

PyQGIS: standard and advanced linear referencing possibilities

I'm aware of the existence of the following QGIS plugins: QChainage Event layer linear referencing LRS Although, all of these tools offer some linear referencing capabilities, I find that they ...
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71 views

Linear Referencing along a polyline

I'm trying to use the "Locate Features along Routes." I have a simple polyline and I have an excel sheet of To and From miles. The excel sheet has no X&Y coordinates. The excel sheet has the ...
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42 views

What determines direction in “Hatches”?

I created a route layer that uses hatches to help determine addresses along a street centerline. About 90% of the time, the hatches go up from zero in the direction that the line was digitized but ...
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69 views

Get distance after path distance allocation

I use ArcGIS 10.1 in Windows XP. I have a two point feature data sets One containing a single point P1 and another containing multiple points Pm. I computed the minimum-distance path from P1 to each ...
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142 views

Problem to transform events from one route to another

I have a road feature class layer containing parts like 1_10, 1_20. 2_10, 2_20... etc. 1_, 2_ is later used to create the route and _10, _20 is indicating the direction (the road feature classes were ...
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22 views

Dynamic segmentation with respect to a control factor

Is there a way either with python scripts or other solution to dynamically segment a table with linear measures (from-to fields) Each segmented section (from-to) should have all the item numbers ...
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54 views

ArcPy QueryPointAndDistance: Incorrect Lengths?

Background: I'm currently trying to determine the chainage (distance m) of my points along a polyline (i.e. proposed railway alignment). A colleague within my firm assisted me with the following ...
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58 views

How can I extract the measurelength, highmeasure and lowmeasure of routes in ArcGIS

I'm trying to create road Routes in ArcGIS, which traditionally have been created using workstation. I've managed to write a Python script to do this, however, unlike ArcInfo, the attributes ...
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22 views

Is there a tool to split self-created measurement values?

Is there any way to split created measurement values across multiple polylines? For example, if there are two lines that each have F_MEAS=0 and T_MEAS=0.5, is there any way to choose both edges, say ...
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63 views

Query Data from an Event Table in ArcGIS (Linear Referencing)

My goal is to store a bunch of past present and future Events in a central place from different vehicles, query those tables on demand and display the result in ArcMap. Note that right now, my Route ...
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74 views

How to locate M values in ArcGIS Silverlight API?

I am trying to work with M values in the Silverlight API. I gather that the IdentifyParameters would be used to identify a milepost by clicking along the line, but what would I use to query an M ...
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44 views

Linear referencing in Geographic Coordinate System (GCS) using ArcGIS for Desktop?

I want to make a new line segment in event table with linear referencing ArcGIS 10.2 for Desktop. I'm using two tools: Create Route with input line feature in Geographic coordinates system and ...
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166 views

Using M 'Measure' value in SQL Server 2008

MS Sql Server 2008 geometry type supports adding Z and M values to geometry objects, including linestrings. However, I cannot find any way to make use of these values, since methods such as ...
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19 views

How to publish linear referencing capability in ArcGIS for server?

I created a linear referencing event and want to publish as linear referencing service in ArcGIS for server . The problem is when i want to publish, High warning shows the linear referencing event ...
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46 views

Object: Createobject Layer Invalid Data Source

I'm using a tool made for ArcGIS, however I keep getting this error (see picture). I do not know any python code and I'm trying to get this script to run. # Import system modules import sys, ...
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21 views

How to use linear referencing in Informix DB with Spatial Blade?

Is there any simple solution to use linear referencing in Informix Database with Spatial Datablade?
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56 views

Linear Referencing Bunching up Points

I am having an issue working with Linear Referencing. I have tried this with both ArcGIS 10 and ArcGIS 10.2 and I'm having the same problem. It keeps bunching up the points at the vertices of the ...
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331 views

“locate features along routes” tool results in empty table!

I have no idea why the result table of the tool "locate features along routes" is empty. I have a stream network and a cross-section layer. Here is what I did: 1- Converted my stream polyline ...