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

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Find distance from points along lines [on hold]

I have two layers, one is a point layer of schools and another is a polyline layer of streets. The end goal is to create a buffer along the lines that is 20 feet from the centerline that goes 1 mile ...
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19 views

Help with Modelbuilder workflow

I am new to ModelBuilder and am working on a project to teach myself how to use it for graduate research. A friend of mine recommended it to me since he was doing something similar in class. I am ...
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21 views

Creating points at specified distances along line radiating from midpoint of each line using ArcGIS for Desktop?

I want to create points at specified distances (i.e. every 10 meters) along a line radiating from the midpoint of each line. While I could manually create a number of 'buffers' from each mid-point ...
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1answer
287 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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1answer
31 views

Nearest Neighbor Analysis for route events

I have events that are on routes. You can think of it as accidents on a highway. I want to do some spatial statistics on it. The road is an M enabled feature class and decision makers want logical ...
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1answer
16 views

Create chainage points from hatch in ArcGIS

I have routes representing road centrelines created my geodatabase. I have hatched these features with point symbols and lables every 100m as shown below: I would like to create a point feature ...
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1answer
212 views

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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5answers
2k views

Split lines into non-overlapping subsets based on points

Given a table with line geometry, and one or more points that are snapped to this line in a separate table, I would like to split each line with one or more intersecting points at each of the ...
4
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1answer
235 views

Routing problem finding shortest route to line

inspiration on how to solve this problem. (Ascii art, I don't have points to insert picture) I need to find Z Z = Shortest route from X Using Road (no point exists here) O = The points that makes ...
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5answers
1k views

How to preserve original direction of NHD segments when creating route using gp.CreateRoutes_lr tool?

I am trying to figure out how to preserve the original line direction of NHD High Resolution data that I am selecting out and creating a route with. I'm using ArcGIS 9.3.1 and this is a python script. ...
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1answer
36 views

How does the parameter “offset” work with the ST_LocateAlong/ST_LocateBetween PostGIS function?

I try to understand the ST_LocateAlong/ST_LocateBetween PostGIS function. The documentation tells me this: geometry ST_LocateAlong(geometry ageom_with_measure, float8 a_measure, float8 offset); ...
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33 views

Creating a reference line among LiDAR points and retrieving distances between them?

I have a LAS dataset which contains points with x and y coordinates. For further analysis I need a new dimension which can be adjusted as the dataset requires. To make it understandable I made this ...
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47 views

ArcMap, Network analyst data preparation

I have line feature class with pedestrian network ... and information about network parameters (surface type, surface quality, slope, etc. ... not in digital form now). I want to create network ...
2
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1answer
54 views

Plotting new offset points in ArcGIS for Desktop?

I have a task where I have plotted positions along an alignment (see red dots in images) and I need to plot two offset points (from the chainage locations) at varying distance parallel to the ...
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0answers
108 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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0answers
25 views

Dividing stream network of specified lengths in ArcGIS for Desktop? [closed]

we are trying to find hydro power potential of river basin by using ArcGis and SWAT ,we have created stream network ,but unable to divide stream network at 500mts interval, unable to find the tool
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46 views

Find nearest upstream sensor to Event data

I am a newbie to ArcGis. I am trying to find out the nearest upstream sensor to an accident data table . The inputs that I have are: Sensor details: Latitude, Longitude, Road Name, Road Direction ...
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1answer
51 views

Perpendicular Distance Markers on Polyline in MapInfo?

I have added chainage to a creek polyline in MapInfo v11.0.3 using the 1999 version of "Distance Marker" by Meridian. It looks poor as it does not have the functionality to create the markers ...
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2answers
544 views

Assigning RouteIDs to polyline feature class in ArcGIS Linear referencing?

I have a Linear Referencing Route System in ArcGIS Geodatabase format (polylines with M values) and a separate polyline feature class of short segments (called TMC) that do not have RouteIds ...
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1answer
61 views

Geocoding Street Segments Based on Extents in ArcGIS for Desktop?

I have a list of projects that need to be geocoded or drawn through some sort of automated process in ArcGIS 10.3 for Desktop. The are listed by primary street, a begin street intersection, and an end ...
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62 views

Interpolate missing M values along a line

Is there some way in PostGIS to interpolate missing M coordinates in a geometry like this? select ST_MakeLine(ARRAY[ ST_MakePointM (0, 1, 10), ST_MakePoint (0, 2), ST_MakePoint (0, ...
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1answer
40 views

How to change Linear Units

I have an ESRI feature class whose coordinates are 38.263, -122.672 Meters. When I load it into a data frame that uses the GCS_NAD_1983_NSRS2007 datum and the ...
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2answers
804 views

Calibrating routes gives interpolation error in ArcGIS Desktop?

I know that copy a question is not exactly great way to ask on this forum, but my situation is exactly the same as this unresolved issue on the (closed) ESRI forum: I have a stream centreline ...
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37 views

Locating Multiple Points on Mutlipes routes by a Unique ID

I'm trying to get a "MEASURE" for Points along a route. I need ARCGIS10 Desktop Linear Referencing tools or other application to use a unique identifier to match the Lines in the route to points ...
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848 views

How to use the linear referencing plugin from QGIS with postGIS data?

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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37 views

How to intersect two polyline layers? [duplicate]

I have two line shapefiles that overlap 50% of the time. I want to generate a new single shapefile that includes attributes of both datasets AND no duplicate segments. A short segment from one layer ...
4
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1answer
192 views

Intersecting overlapping polylines using ArcGIS for Desktop?

I have 4 multipart polyline shapefiles (download a sample dataset here). The geometries are identical, except for the length of segments in each shapefile. They represent 4 variables describing an ...
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4answers
15k views

Creating point file along line (trail) at regular distances (0.20 miles) using ArcGIS Desktop?

I'm using ArcGIS 10.1. I have a trail network that I'm trying to establish signs along the trails every 0.20 miles. Is there a way to create the point file from the line feature?
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23 views

Selection Based on Range of Values from another table

I'll try to explain this is as simply as possible. I've figured out how to create this table in SQL, no problem. But I'd like to have this done in python as part of a larger model. I have a feature ...
2
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2answers
82 views

Creating coordinates from beg and end points on a line [duplicate]

Is it possible to create WGS-1984 coordinates from the start and end points along a line segment? The line features were created using linear referencing but now I need to create lat and long ...
4
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1answer
63 views

Saving a calibrated route in QGIS for “future” use

Can a Calibrated Vector (after using LRS) be saved with M values, so that the file does not have to be calibrated every time is used? We're currently working on State road data, and it has many ...
6
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2answers
3k views

Segment road network line shapefile into new equal length segments line shapefile?

I would like to subdivide a road network for an entire state into segments of equal length. So, Highway X would be divided into 0.5 mile segments, with a record for each segment, and Highway Y would ...
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42 views

Offsetting points from lines using SQL Server Spatial?

I'm new with SQL spatial data processing, so I'm not sure how to solve my task. I have two tables - table with lines and table with points that are located on lines. Lines and points are related by ID ...
2
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1answer
530 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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159 views

Locate features along routes when features are parallel

I am trying to use Esri's Linear Referencing Tool to conform a drawn line to a road route. I have a fairly large search radius of 20m. As long as the line I draw touches the route at some point, ...
2
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2answers
57 views

Labeling at M value vertices only?

How would one label at M value vertices only? We have added M values using linear referencing and now would like to label stations at the vertices.
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135 views

Find the point distance along a streams polyline?

Working in ArcGIS. I am looking for a way to find the distance of a point along a streams polyline. I read Finding distance of point along polyline? and it seems to be similar to what I need...the ...
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1answer
45 views

Line sections between points in ArcMap?

How to get shape with lines between points which have to lay on the same line entity?
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48 views

Measuring distance on line geometry with ArcGIS IOS

I'm developing an IOS application which should run offline and need a feature; I want to be able to calculate distance to a point from the start of a given line geometry. With ...
2
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3answers
97 views

Using linear referencing in ArcGIS to plot line data

I have just started using the linear referencing tools in ArcGIS 10.2 but I'm having a bit of trouble. I'm trying to plot schemes as line data on to our road network layer which is also line data ...
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2answers
271 views

Arcpy.da.SearchCursor to retrieve the min and max measure values from Polyline-M shape

Is there a way to use a search cursor in ArcGIS to read the minimum measure and maximum measure values of a linear referenced route layer using arcpy? My goal is to build a route event using the start ...
3
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2answers
392 views

Generating random points on a route

I am trying to generate random points on a route from one point to another. What I have till now is, given a source and a destination, I can get a route using Google's API. But how do I get the ...
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27 views

Shapely's object.project method dealing with overlapping polyline

So I am interested in knowing how far along a polyline a given point sits. Python's shapely package has a method to do such a thing, see the below code: from shapely.geometry import LineString ip = ...
1
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1answer
136 views

How to get polygon distance from a route?

I need to calculate the location of polygons along the route in ArcGIS (ArcInfo) 9 or 10. What I have already found out is only the calculation of the start and end of the intersection of a polygon ...
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2answers
147 views

Is there any tool to execute Postgis-like queries without a postgres server?

I would like to know if there is any way/tool of using geoprocesing queries like the ones you use with POSTGIS but without the need of having an actual database server available. The particular ...
1
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1answer
109 views

How to register “events” for linear referencing in pyqgis?

Is there an easy solution for recording events for a line crossing borders of zones in a polygon layer? I need to implement this in python using QGIS, thus pyqgis. The image attached illustrates what ...
1
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3answers
708 views

Divide Line Into Sections Using Points Offset from It in ArcGIS Desktop?

I have track (line) and milemarkers (point). Each point is offset by a different distance. Is there a way to find where each point would intersect the line if going perpendicularly out from the line? ...
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3answers
223 views

Why does ArcGIS 10 Calibrate Routes give Error 000443?

I am trying to calibrate routes using points along them. Those points are represent counts of hikers per hour. I have done a spatial join between my route layer and my points to have the RouteID in ...
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107 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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112 views

SQL Spatial Tools package - linear referencing

The SQLSpatialTools package website seems to be temporarily down, so I cannot access the article on linear referencing tool posted there at the moment. Is it possible, by any other means, to obtain a ...