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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6 views

Splitting multiple noncontiguous polylines into multiple files

I have multiple polyline shapefiles that are non-contiguous, that is to say that each shapefile contains polylines that have breaks in them. I am looking to split each of these polyline segments into ...
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0answers
22 views

ArcGIS ArcMap average values in a single flowline

I am newbie in Arcmap. I need to get the average (Velocity) values of 1000 points on my long flowline. I tried to make parallel lines on each gridpoint using the "copy Parallel" function. But there ...
2
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1answer
30 views

How to create Multipart Line in ArcPy?

I am developing some script in where I want to create custom multi part line geometry. For example: I have one array of points a,b,c and second array of points e,d,f. I want to create one ...
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0answers
33 views

Extracting raster values with polylines in QGIS

I have a polyline shapefile that represent a road an a raster grid with slope values. Is it possible to interpolate the shape file and the grid to have the average slope of the road? I know that I can ...
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2answers
40 views

Turning Polyline with Multiple Segments into One Single Line

Using QGIS Valmiera (MapInfo and other software is also available) Is there a way to convert a polyline with multiple segments into a single line? I.e. by taking the first point and the last point of ...
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1answer
16 views

How to convert 3d profiles to points in ArcGIS 10.1

I have created some 3d profiles using the Interpolate Line button (in ArcGIS 10.1). Which looks like: I would like to convert these lines into points and in order to do that I am under the ...
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2answers
41 views

Export long lat from polyline as csv file in QGIS

I want to draw a line in QGIS and then, export the long-lat of each point into a Comma Separated Value (csv) file. I tried doing this by creating a new shapefile layer and then using the Add Feature ...
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1answer
28 views

Point input for polyline not acceptable?

Input QgsPoint(s) are returning an error in a Polyline creation routine. Any clues?! processing.runandload("qgis:polygoncentroids", Base, "memory:CenterNode") ...
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1answer
91 views

How do I create measured line segments along existing polylines from a starting point?

I realize my problem may be solved using Linear Referencing, and if that's the case I'm looking for help figuring out the workflow involved there. I'm working in ArcGIS 10.2 Desktop Basic, and this ...
3
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1answer
46 views

Cut polyline in Qgis 2.4

I want to shorten a feature (a polyline representing a road) in QGIS 2.4 In QGIS 2.0 there was "Split Features" tool in the "Advanced Digitizing" toolbar. Here the icon: I'm not able to do this ...
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0answers
18 views

Get the specified feature by direction

I have two lines, while I want to get the line at the right hand according to a specified direction: The red line with arrow means the direction, while the line with blue color is the target to be ...
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0answers
17 views

Splitting existing polygons with existing polylines(roads) with GME tool “split polygon by lines”

After reading through many of these articles i believe the GME tool "split polygon by lines" should be useful to my problem. I have a polygon that needs to be split by a road layer. When i run this ...
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1answer
28 views

Drawing outline of points in ArcGIS for Desktop [closed]

Simple question, can Arc take a shapefile of points, calculate which ones are at the "edges" and draw a polygon or polyline around it. I know there are masks and bounding geometry and all of that, but ...
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0answers
56 views

Is it possible to georeference a shapefile? [duplicate]

I need to align a polyline shapefile with a pre-existing one. This new one has a couple of edits, but for some reason shows up in a different location (I believe the person who made this edit did so ...
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2answers
40 views

How to automate drawing a polyline from 2 intersecting datasets based on proximity?

I've been stuck on a situation recently where my company's data has to be integrated with another. Basically there are two point shapefiles comprising of >50000 points, and as shown in the image ...
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1answer
24 views

Retrieving routedescription geometry as GeoJSON

I'm building a small web-map and would wich to display a polyline representing a specific route via roads. With leafletjs it is easy to display the geometry on/over the map. So that's not the problem. ...
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1answer
43 views

How to compare polylines attribute from the same GRID cell in ArcGIS 10?

I need some help because I do not know how to model this issue: I have two polyline shapefiles. They have an attribute that I need to be compared. These are roads from different sources. So, I have ...
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3answers
62 views

Take parallel lines and automatically move them apart

Rather than collapsing parallel lines, I am looking for a process that would separate them. There are a number of lines on the network that run too close together to distinguish as separate ...
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0answers
34 views

QGIS custom labeling by clicking on polyline (and polygon)

QGIS has now few really good options for custom labels but I can't find a way how easily manage labels along polylines. Is there any tool which helps me to place labels by clicking on polyline so the ...
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0answers
35 views

Reading Points as PolyLines

I'm currently developing an Android app where I need to show some information on a map, which is stored as Shapefiles (.shp + .shx + .dbf). I noticed that when the shapefile is opened in QGis, a nice ...
3
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2answers
30 views

QGIS Line End Caps

When styling a road network where all sections of the network between junctions are separate paths, I style the ends of the lines to rounded to remove any gaps that might appear where the joins are at ...
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2answers
186 views

Convert polyline to polygon Using ArcObjects

I have a polyline and I want to convert it to a single polygon feature,I used this code but I get error while I can convert the same shape file using feature to polygon on ArcGIS Where is my mistake? ...
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2answers
62 views

Adding end nodes to a line

I'm hoping someone can help me here. I have a line feature and what I am trying to achieve is to determine is in which direction the line ends. I understand that this could be achieved with ...
2
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3answers
116 views

Create voronoi diagram from line segments

I'm looking for a way to create a voronoi diagram based on line segments instead of points. See the example below (taken from this presentation). Ideally I'd like something I can script from Python, ...
3
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1answer
103 views

Calculating the fractal dimension of a line segment

I have a shp file with hundreds of features that represent clipped segments of coastline. Each segment is made up of many vertices (dozens, perhaps even hundreds). (FYI, the segments were created by ...
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1answer
89 views

Create FeatureClass in Personal Geodatabase and store data

I have to create a new featureClass in my existing personal GeoDatabase. And save some polylines into this featureClass. How can i do it? I need c# code to do this. Edit: I have a problem during ...
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1answer
43 views

Georeferencing system of rivers using XY To Line tool? [duplicate]

I have a State Water Hydro layer from our GIS county office that does not have georeferenced attributes (It is sitting on top of a State Plane county basemap). Looking at the XY to Line tool I need ...
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1answer
49 views

Simplify polyline with the intersection point kept

I have a some line and polygon features which consist of too many points, so I tried to simplify them. I found the "Ramer–Douglas–Peucker algorithm". I think it will work well for a single feature ...
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1answer
32 views

Get attributes from intersecting lines to label generated intersection point

I have an urban road network (as a feature class), consisting of only polylines. I have to make a database of all the intersections between the streets. The problem is that as I generate those ...
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2answers
100 views

GIS Survey Line Plans

Has anyone ever heard of any tools in either Arcmap, QGIS, Mapwindow GIS etc, that could create a line plan (Survey Lines) across a polygon (Survey Area)? A form of input such as distance between ...
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1answer
144 views

Get points along a polyline at defined distance c#

I need to store into my array the points along the polyline at each defined distance. Example: The Polyline length is 50m, I set the interval to 5m. I have to store in the array all the points along ...
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2answers
96 views

How to split a (road) buffer using the centerline?

I have a road centreline dataset which I have buffered using the road width. I used the standard QGIS buffer tool. I realise for my analysis I actually need to split the road buffer in half and ...
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1answer
23 views

How to check VALUES from different datasets spatially near with ArcGIS10

I need some suggestions, let's see: I have two heavy polyline datasets, from different sources, so they will never be coincident (it doesn't matter this issue). Both have the same field from which I ...
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1answer
137 views

How to get the First and Last Point coordinates of a Polyline with Field Calculator in ArcGIS10

I'm trying to get the First Point coordinates (x,y) and Final Point coordinates (x2,y2) from a polyline in ArcGIS 10 with the Field calculator. I've added 4 (double) fields like StartX,StartY,EndX ...
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1answer
58 views

QGIS convert polyline to fixed width polygon

I have a shp file of polylines for trails, and I need to convert them all to be polygons that are 8 ft wide (4 ft from the center of each side of the polyline). I tried a following a few other posts ...
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1answer
112 views

Rasterizing polyline data with QGIS/GDAL: custom line width

I need to make a raster from a polyline shapefile. However, when I use gdal_rasterize (either directly or through QGIS), all my lines are drawn one pixel wide, while I need them to be drawn with the ...
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1answer
49 views

MapInfo Thematic mapping - line width based on a field

I want to apply thematic mapping to a layer in MapInfo with varying line thicknesses based on a float column. Is this possible?
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1answer
110 views

Creating new lines along specifically selected existing lines using QGIS?

I have tried to find a solution for this everywhere, with no result... My problem is that I want to be able to manually draw a line that automatically snaps to a line (creating an exact copy of the ...
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1answer
74 views

Produce line from components, length and angle

I have a CSV file, or point data file which includes information about line vectors which I have previously calculated. This file is outlined as such: x, y, dx, dy, length, angle(east_from_north) ...
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2answers
159 views

How to create polygons from unclosed polylines?

I have a layer of driveway that is in polylines unclosed . They are just two parallel lines outlining the width of the driveway. Then again, there is a gap (sidewalk layer) and driveway continues ...
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1answer
36 views

Error when running cluster and outlier analysis

I am attempting to run Cluster and Outlier Analysis on a Shapefile Feature Class. The geometry type is a line feature class. I am receiving the following error when attempting to utilize this tool: ...
3
votes
1answer
56 views

Add Z and M values to stream network produced from DEM

I created a stream network from an existing DEM. My ultimate project goal is to be able to select a river from my stream network and use the 3D analyst to generate stream profile (Elevation by ...
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1answer
59 views

Can I create a polyline with one long segment and three shorter underlying segments?

We currently have a street centerline polyline feature class where the street segments correspond to our pavement management database. Each segment has a unique ID that matches a record tracking ...
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1answer
79 views

Find minimum elevation along a polyline and return xy or point?

Using ArcGIS 10.1 and Python IDLE 2.7.2... I'm trying to find the minimum value of a polyline with a raster layer and turn that LOCATION into a point. I put everything together in model builder, but ...
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0answers
68 views

How to store esri geometry types in sql server

I have a txt file containing some data of polylines. Actually it is saved json objects. The features in it are esriPolyLine objects. Now i want to store it in my sql server db as geography data types ...
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1answer
102 views

How do you change starting point on a polyline? (split tool)

There must be an easy fix for this. I am using the split tool and I want it to split a polyline into equal parts. For some reason, it is starting in the middle of my polyline. How do I force it to ...
2
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1answer
68 views

Using Python to create new point location based on various azimuth and distances

I have a feature class with thousands of points. In the same table with these point locations, I have two additional fields. One for azimuth, and one for a length (or distance) to move along that ...
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0answers
25 views

How can ArcGIS split polyline automatically? [duplicate]

I am trying to split polyline by distance. I know I can use the function in editor. But I have to split it one by one. How can I do it automatically ? Is there any python scripts or tools for ...
3
votes
2answers
758 views

Extract Raster from Raster using Polygon shapefile in R

I am new to R and using the raster package. I have a problem extracting polygons from an existing raster file. If I use extract(raster, poly_shape) function on the raster it always creates a list ...
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0answers
28 views

Extract coordinates from polyline in QGIS [duplicate]

I have a shapefile with 64 lines with the metadata: General: Storage type of this layer: ESRI Shapefile Source for this layer: C:/Users/toke.nielsen/Desktop/lines.shp Geometry type of the features in ...