A digital map feature that represents a place or thing that has length but not area at a given scale. A polyline feature may have one or more parts.

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1answer
49 views

ArcGIS how to capture attribute data from another layer

I have an arc layer with points and another with lines. The points exist along the lines (as stations). Both layers have an attribute for LineName. How do I pass the specific line name data to the ...
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0answers
18 views

How to remove covering lines? [on hold]

I have a shape file where there are polygons perfectly fitting, i created contour lines from all of the polygons so i have a shape containing only the lines. My problem is as the polygons were ...
1
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1answer
23 views

Converting polylines to raster, assigning value of total length of lines within cell?

I have a polyline shapefile representing a road network. I want to rasterise this data, with the resulting values in the raster showing the total length of lines that fall within the raster cell, ...
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1answer
22 views

Labeling only line vertices in QGIS?

I want to only put labels on the vertices of the polylines. I can use the data defined features to place a label at specific points, but not at multiple specific points. Is it possible to label only ...
0
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1answer
16 views

Plotting on MAPinfo given edge geometry in a row

I have a file of road geometry of the Washington State downloaded from GIS cup 2012. Each row in the file is of the type, ...
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1answer
50 views

Reversing polyline direction based on raster value using ArcPy?

I am trying to create an ArcPy script that will read a raster cell value at the start point and end point of a polyline, and flip the line based on those values. I do not want to create another ...
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2answers
52 views

How to add a perpendicular line to the start & end nodes of every polyline? [duplicate]

Is there a way to add a perpendicular line to the end node of each polyline? Something like this:
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0answers
28 views

Find lines that have specific distance between them in QGIS

I have a rather large dataset that contains duplicated lines with an offset of 1m-5m and I want to find an efficient way to solve this problem using QGIS. Is there anyway in QGIS to find the lines ...
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4answers
111 views

Workflow for identifying gaps in polyline shapefile

So I have a polyline shapefile showing the border of a city, however there are multiple gaps in the shapefile ranging from ~2m to well over 1km that are almost impossible to see when viewing the area ...
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37 views

Updating a polygon with an attribute from ALL intersecting polylines

I have a polyline layer with road information such as the road it beings from and the road it ends at. Some of these are digitised incorrectly and I am trying to pull out the road name (or unique ID ...
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2answers
61 views

How to close a polyline in QGIS while digitizing?

We need to work on a line layer where some features are closed and some are open. The closed features need to be closed perfectly, so that the first and the last point of the polyline perfectly match. ...
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0answers
30 views

Convert polygons to optimized lat long radius

I have a research project where I need to search Instagram and Twitter for geo coded data. The APIs allow lat, long, and radius, but I have shape files with polygon shapes and some long lines (think ...
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1answer
28 views

Number of lines within specified distance of thousands of polygons

I have ~5000 polygons in green (districts). I have storms that I am interested in as red lines. Each storm has a unique ID. Looking to add fields to the districts. The fields are 25km, 50km, 100km, ...
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0answers
30 views

Create table that assigns node id of linked node to line endpoints in QGIS 2.8?

I am using Quantum GIS 2.8.1. I have two vector files - 1 line, 1 node (vertex). All lines are connected to a node on either end. I want to create a table of every line with a start node and end node ...
2
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2answers
68 views

A method for noise reduction in GPS derived cycling routes

I'm pre-processing GPS data to assess possible methods for a planned research. The aim of the research is to use crowd-sourced cycling routes data to plan a cycling paths in an Israeli city. ...
2
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1answer
52 views

How to interpolate line Z from sparse attribute values

I have a series of end-to-end connected 3d lines which I'd like to add elevation values for all vertices on the lines which are currently null or 0. How to accomplish this? In the following image ...
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0answers
47 views

QGIS - Polygon to Lines Tool Incredibly Slow

I am trying to convert a few polygons to polylines so I can save them as a .GPX file. I'm using QGIS 2.8.1 (Wein) on the Mac. It seems to be hanging. I only have a few small polygons (see ...
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1answer
33 views

Merge lines where point feature class exists

I have a polyline feature class and a point feature class. Two lines from the polyline feature class come together (in most cases they are snapped together) where a point exists in the point feature ...
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0answers
50 views

How to offset polyline geometries (not symbology) using QGIS?

I have a polyline layer which has a road network digitized, up the center, in both directions however the polyline are sat "one on top of the other". I can display the lines separately by ...
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1answer
22 views

Can A PLugIn in QGis let me cut polylines where the points of another shapefile are [duplicate]

I want to know if there is a plugin/tool in Qgis, that let me cut lines of a shapefile where the points of another shapefile are. Thanks in advance!
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2answers
62 views

Combining spatially identical polylines in the same layer

I have a shapefile of road volumes as polylines, and want to be able to show the sum of the volumes for polylines that are spatially the same/similar but are for travel in opposite directions. For ...
4
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0answers
69 views

Cumulative length of polylines

I have a polyline shapefile with streams. I would like to turn this to a raster where there would be a cumulative length sum value in each pixel moving downstream. In other words, this would be an ...
0
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1answer
49 views

Measure several line segments as one in ArcGIS

I have a polyline shapefile which is divided into more than 56 pieces and I want to measure the length of the whole line as one line.
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1answer
38 views

Adding hyperlinks to Leaflet polylines created via Leaflet.Draw?

[Cross posting from StackOverflow as I realized this may be a more specific community for this] I'm using Leaflet.Draw, and I want to allow the lines that I draw to have hyperlinks in them so that ...
3
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1answer
102 views

Representing overlapping polylines in QGIS

I have several shapefiles representing bus lines with different colors for each segment, however, because the lines are exactly superposed, only the shapefile on top can be seen. Is there a way to ...
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0answers
35 views

How to calculate curvature for a 3 D polyline (Z) in arcgis 10 with 3D analyst?

I'd like to add curvature calculations to 3D polylines (with multiple vertices) that have elevation for each vertex. I know average slope can be calculated using the Add Z information tool.
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1answer
49 views

Using Polyline to Raster tool in ArcGIS

Pretty basic question; In this Polyline to Raster tool, there is a field called "Value Field" I am not sure what to put for this field. My polylines are ZM, so there is Z information for the line, I ...
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0answers
54 views

Extract unique overlapping/coincident polyline routes into their own selectable layers?

I am currently working with a road network that was created in Citilabs' Viper, consisting of nodes and links. For every single link in the dataset, there is an AB node for both directions, opposing ...
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1answer
62 views

How to fit polylines to their true position?

I have a satellite image and CAD data of the same area. The polylines from CAD to not overlay correctly on the satellite image. I want to fix polylines to their true coordinates but I could not fix ...
0
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2answers
64 views

How can i create points per 10 and 100 meters for several lines with ArcPy?

I have 10 lines and i want to generate points per 10 and 100 meters for each one of them. In ArcGis there is the tool construct points(COGO) but is not scriptable. Is there any suggestion? Also i ...
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2answers
71 views

Using geodatabase for processing 7200 polylines?

I have 7200 lines and I want to divide each of them every 100 meters and take the coordinates of points from them. For that task should I create a geodatabase and put them in there? I am totally ...
0
votes
1answer
120 views

Not displaying polyline on the map in android

I'm new to ArcGIS runtime SDK and I want to add path(polyline) on the map after giving coordinates where to draw.. But not displaying the path on the map and even not occur any error. MapView ...
0
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0answers
45 views

Problem with conversion from raster to polyline (not a single curve)

I have raster file and I need to convert it to line. I used GIS tools Convert Raster to Polyline but the line segment is not straight and it is divided into no of segments, isn't it possible to get ...
4
votes
1answer
99 views

Measuring Sinuosity of Walking Paths

I'm currently working on a project that examines the movement of consumers through different kinds of retail spaces in Central Asia – namely, bazaars versus supermarkets. I've equipped dozens of ...
4
votes
1answer
71 views

Calculate distance from all points to all lines within 10km using FME?

I have a polyline shapefile and a point shapefile. The points are along the polylines. There are over 100 lines and over 10,000 points. I want to calculate the perpendicular distance from every ...
0
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0answers
21 views

Count Overlapping Lines using ArcGIS Desktop? [duplicate]

I'm trying to calculate the frequency of overlapping lines. The question is pretty identical to the illustration show here Frequency of partially or fully overlapping lines However I have no python ...
2
votes
1answer
72 views

Segment matching on a polyline

I have about 1000+ running routes which I can load into memory as polylines using latitude and longitude data captured from a running watch. From these polylines I would like to be able to identify ...
0
votes
1answer
95 views

Split lines with points while maintaining other dissolved lines

I am on ArcGIS 10.2. I have a line feature class of a stream network. I also have a point feature class along the main stream (line) where a catchment enters that stream. I have dissolved my whole ...
1
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1answer
465 views

How to Create a arrow PolyLine with curved (geoDesic) using ArcGIS PolyLine

Trying to draw two markers(points) with a curved and arrow PolyLine using ArcGIS maps. Below is the source code, able to draw Poly line but it is coming as straight line. <!DOCTYPE html> ...
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0answers
40 views

line features show up as polygons in GeoServer

the layers are located in a postgreSQL Enterprise Geodatabase. I created a new line feature class and added it to the database and then added it to geoserver. But in geoserver it comes in as a polygon ...
5
votes
4answers
223 views

How to Unsplit/Dissolve multiple touching lines in Stream Network?

I am trying to dissolve multiple lines for stream networks into individual features. The dataset contains many stream networks so a complete dissolve of the whole dataset wont do as I would like to ...
0
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1answer
77 views

Converting polyline data to polygons?

I am trying to convert some polyline coastline data into a polygon that I can use to clip/subset back other data sets by this polygon. There are some small gaps in the coastline data, which ...
1
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1answer
13 views

How to set a polyline length as per a given Image

I have an image of a map representing the road networks. I have converted these road networks into a shapefile with only polylines. I want to set a distance to this road network. For e.g I know from ...
2
votes
2answers
148 views

OGR DXF Closed Polyline Conversion

I'm trying to convert closed polylines into polygons using ogr2ogr from dxf to mssql. Here It says that polylines are converted into POLYGON if they are closed, but I always get the type LINESTRING ...
2
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0answers
32 views

How to measure similarity of approximately congruent polylines

My initial question was posted here. The answer of whuber provides a nice solution for the case when polylines are congruent. However, the problem is that my polylines are approximately congruent ...
1
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1answer
69 views

Spatial join 2 polylines without common attribute

I need to spatially join 2 polylines, but the problem is that the tables have nothing in common. Also, one of the tables is 4 times as big as the other one. Essentially, what is need is to combine the ...
2
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0answers
37 views

nominatim api for long streets

I'm using the Nominatim API in geojson method to retrieve streets poly line. For short streets I have no issue and the results are good. However for long streets the data I'm getting back in the ...
1
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0answers
16 views

QGIS street labelling when rotating in composer

When labeling streets in a QGISmap everything's OK, no label are upside-down. But I need to rotate at 180° in the composer. Labels of lines don't flip, so they are upside-down! I tried to "show ...
1
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1answer
63 views

Polyline graphics not displaying in Javascript API?

I am getting features (graphics) back from an IdentifyTask, setting a symbol and adding to a graphics layer. Polygons and points show up just fine, but not lines. Has anyone else encountered this? ...
1
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2answers
66 views

Re-numbering points along a polyline

Using ArcGIS 10.1 for Desktop. I created perpendicular lines along a polyline. In the process of doing that, the lines were numbered in order (automatically). I manually edited some of the ...