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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2
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0answers
30 views

Merge Line Segments based on their length in QGIS

I have a layer containing line segments which are connected by their endpoints (e.g. as within a street network). I'd like to merge (union) polylines within this layer into one feature until following ...
0
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0answers
9 views

How to find one polyline of google map overlaps other polyline in map?

I have two routes let's say route 1(Location A to F) and route 2(Location B to E) in Google map. How could i determine route 1 includes route 2? Here route 2 is shorter than route 1 so, coordinates ...
4
votes
1answer
60 views

Polygon points to Polyline

I am trying to create a polyline from the points that I query from a polygon. I have a polygon, and I am getting its edges, casting them to segments, and then use QueryNormal to get the mid point ...
0
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0answers
16 views

Space points out a minimum distance along a line

I have just snapped thousands of points to the polylines they share attribution with but a lot of the locations overlap slightly. I would like to create a minimum distance between points. I DO NOT ...
0
votes
0answers
10 views

Drawing lineString in Google Earth API

I am able to draw a Polygon on the Google Earth API which is integrated in my website but i have to draw a lineString. Does anybody can help me? Here is the code i use to draw the polygon: function ...
0
votes
0answers
31 views

Snapping points to polylines and maintaining minimum distances between the points as well as meeting other parameters

I have thousands of locations that I would like to snap to be placed on top of a hundreds of polylines based upon matching attribute fields. Think of them exit signs located on every ...
0
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0answers
17 views

google maps api with polyline not displaying lines

I converted shape files into mysql table that has features like LINESTRING and MULTILINESTRING. I am using google maps api ( var shape = new google.maps.Polyline({path: ...
1
vote
1answer
31 views

Extracting the closest Point to a Line within a Polygon using ArcGIS for Desktop

I have the following shapefiles: Polyline: Detailing a road network. Polygon: Containing approx. 2000 polygons enclosing sections of that road network. Point: Containing numerous (OS Addressbase) ...
3
votes
1answer
112 views

Gradient colour for lines

My road network is broken up into segments. I want to produce a map that shows where the segments start and finish. I don't really want to create a point layer that shows the location of the ends ...
1
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3answers
55 views

Generate line from unordered set of points

What is the best method to take a set of points and generate a line? There are too many to simply guess a "connect-the-dots" situation & These points do not have an attributes in which they can ...
2
votes
1answer
32 views

Automating Line Creation with Multiple Points

I have a feature class that has over 1500 points in it. I then need to create line segments from these points based on an ID number. For example points 1-6 have the ID 1, points 7-12 ID 2 etc. Each ...
0
votes
1answer
42 views

Split a shape file of lines into even spaced segments

I am using ArcGIS ArcMap 10.2. I have a shapeless of polylines and want to split them each line into 100 m segments. I can see under the editor toolbar the split tool and that can divide each line ...
3
votes
1answer
90 views

Union on lines using ArcPy?

Essentially I want to union multiple (20) congruent line shapefiles, where overlapping line segments in the input shapefiles are combined into a single resulting output shapefile. But I can't union ...
0
votes
0answers
20 views

Capturing line version 2.10

I'm a beginner (as in complete noob) user with version 2.10. I'm trying to digitise some rivers from a raster layer but can't find the "Capture Line" tool which the tutorials and resources show as ...
2
votes
1answer
84 views

Standalone Python script to split a polyline with a point layer

I have a polyline layer and a layer of points that are on top of the polylines. I do not have the ArcGis advanced license so I can't use the Split Line at Point tool. Can someone help me with a ...
2
votes
1answer
25 views

How to find the coordinates of the intersection points between two SpatialLines objects (or SpatialLines and SpatialPolygon edges)

I am try to find the co-ordinates of points where SpatialLines cross the edge of a SpatialPolygon. I have searched and searched, but can only find results such as over which tell me which lines cross ...
1
vote
1answer
38 views

Convert Parallel Polylines (edges of pavement) to Polygons

I would like to find a way to convert an Edge of Pavement layer into polygons that would represent the total paved area. It's a large shapefile, covering some 100 sq miles or so, so doing anything ...
0
votes
2answers
83 views

Split polyline where it intersects with other lines in MapInfo

I have a polyline (bus route) which I want to split where it intersects with other lines (not polylines) I have created. I'm happy to initially do it manually to see how it works, although I would ...
0
votes
0answers
13 views

Arc GIS Line Style have small curves [duplicate]

I'm styling a roads shapefile in ArcMAP. While styling we observed that When we zoom in the map, we see the small curves (curves are not the appropriate word for this I think) on line borders. Here ...
0
votes
1answer
48 views

Calculate distance between two coordinates along lines

I have a map with two layers: a map of the streets of Montevideo, and a map of shops with the lat long location. I would like to calculate the distance between each shop and the nearest one, along the ...
2
votes
3answers
857 views

US / Mexican border data

I'm interested in locating free GIS shapefile data representing the US / Mexican border. I have found a point layer depicting the border crossing points but I'm interested in a polyline feature ...
0
votes
3answers
47 views

Add nodes to polyline at set intervals

I have a shapefile polyline which I would like to add nodes to at set intervals along its length. Is this possible in ArcGIS 10.2 and how would I go about it?
2
votes
1answer
62 views

How to draw contour lines with exact distance?

I am not a professional GIS user so am desperately trying to draw contours with exact distances around my samples (points). I have 67 samples and I would like to draw contours around these points. ...
6
votes
3answers
136 views

Waypoints with coordinates in R

I have a SpatialLineDataFrame with 20 observations of 4 variables (in WGS84). I want to create waypoints every 10 meters. Every waypoint will has the x y coordinates. I tried to do it manually like: ...
1
vote
1answer
66 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 ...
1
vote
0answers
27 views

How to remove covering lines? [closed]

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
vote
1answer
38 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, ...
1
vote
1answer
35 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
votes
1answer
17 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, ...
0
votes
1answer
69 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 ...
2
votes
2answers
62 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:
0
votes
0answers
36 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 ...
3
votes
4answers
132 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 ...
0
votes
0answers
41 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 ...
1
vote
2answers
73 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. ...
0
votes
0answers
47 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 ...
1
vote
1answer
30 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, ...
0
votes
0answers
41 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
votes
2answers
110 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
votes
1answer
71 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 ...
1
vote
0answers
62 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 ...
1
vote
1answer
44 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 ...
3
votes
0answers
57 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 ...
0
votes
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!
1
vote
2answers
64 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
votes
0answers
82 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
votes
1answer
52 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.
1
vote
1answer
51 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
votes
1answer
159 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 ...
0
votes
0answers
37 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.