Questions tagged [polyline-creation]

Used for questions about making polyline features

20 questions with no upvoted or accepted answers
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87 views

Googlesheets CSV auto-update polylines to ArcGIS Online Maps?

I have been able to establish a ArcGIS Online map that auto-updates from a CSV spreadsheet within Google Sheets. The data that is auto-updating is point data with associated tabular data that will ...
3
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0answers
2k views

Is there simple way to calculate radius of curvature along polyline?

I am digitizing a sinuous linear alignment (in this case a water pipe) and would like to get the radius of curvature of the various bends along the alignment. The main reason is that the minimum ...
3
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0answers
148 views

Creating polyline templates (polyline vs polyline ZM) for future network dataset?

I am about to request large amounts of polylines from a variety of sources (municipalities). The idea is to collect bike path data and build a regional bike network (I work for the region ...
2
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1answer
50 views

Split a polylines according to a specific point in R

I have 2 distinct spatial objects: on one hand I have a SpatialLinesDataFrame on the other hand I have a SpatialPointsDataFrame Considering one line and one point that intersects that line, I ...
2
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0answers
44 views

Finding the optimal boundary polyline in QGIS

I am looking to find an optimal boundary line between two geographically separated sets of points (a vector layer with S and N points representing two genetic lineages within a species). I would like ...
1
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0answers
74 views

Creating curved annotations for polygons and lines in QGIS

In general, my problem is that: I can`t display annotations using the option "Using the perimeter (curved)" in QGIS. I tried to solve it in two ways: At first was an attempt to use just a simple ...
1
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0answers
29 views

Forcing “snap-to-road” when reshaping a line via basemap reference in ArcGIS desktop?

Sometimes, when I use "reshape a feature" in concert with a basemap, I'll find that the resultant line doesn't automatically snap to roads if a pair of verticies are far apart: But at the same time, ...
1
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0answers
38 views

2D Curve to poly-lines transformation through triangulation?

I'd like to understand whether it is possible to change the curve in the picture to a sets of poly-lines through triangulation? and is it possible in QGIS? Otherwise, are there other methods to ...
1
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0answers
152 views

QGIS Start and endpoint marker line and polyline

I have a DWG file with lines and polylines. I would like to know how to make a point at each side of the line. Like a startpoint and a endpoint. I do not want any points in the middle just start and ...
1
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0answers
362 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 screenshot)...
0
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0answers
18 views

Snapping together lines within certain tolerance with ArcPy and Basic level license?

I have a GIS layer of bike lanes I created using an open-source GeoJSON which I converted to a shapefile using ArcPy. The end result looks pretty good, with one exception: there is some small gaps ...
0
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0answers
15 views

Plot overlapping buslines (polylines) with leaflet in R

Long story short: I´d like to plot bus lines on my geoJson data with leaflet but need to get rid of the overlap. I´ve been skimming the forum for an answer to my question but, haven´t found any yet. ...
0
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0answers
16 views

Merging elevation values of multiple point shapefile

In ArcMap I have thousands of points with elevation values from an aviation route. This route is stored in a multiple point shapefile. I made a polyline shapefile based on the route x, y locations. Is ...
0
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0answers
145 views

How to save marker and polyline in database?

I want to store marker and polyline in the database. In this script, I have 3 functions, that is to draw a polyline, marker and the point of destination. Can anyone fix my script below? var map; var ...
0
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0answers
46 views

From raster to polyline in QGIS

I'm trying to extrat ridges from ALOS images on qgis. I would like to have polylines so I can use the plugin AutomaTracks from Sebastien Peillet. I did inversed the MNT using raster calculator then ...
0
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0answers
46 views

Geospark - Creating LineStringRDD from coordinates extracted from the sides of each polygon in a PolygonRDD

I am using geospark 1.1.3 with scala and I am trying to split into lines a polygon shapefile dataset which contains 189 polygons. I am expecting to get each side of each polygon as a LineString, ...
0
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0answers
35 views

ArcGIS *.gen files: make polyline from points

I have *.gen files that have have the point coordinates (in known UTM datum) for multiple lines. Is there a one-click tool to get these into a polyline SHP? (I was thinking Generate might do it, but I ...
0
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0answers
60 views

Attributing height data from points to Polylines for Tin creation?

I have to make a TIN of water surface height from about 170 points which have been collected from RTK along a river. The points however are few and far between and rarely on the opposite banks to ...
0
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0answers
109 views

DotSpatial M and Z values not displaying in ArcGIS Desktop?

I'm making a polyline with M and Z values using DotSpatial. The M an Z values are displayed when the shapefile is dropped in QGIS, but in ArcGIS, though the attribute table indicates that its a ...
0
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1answer
284 views

Extracting Transit Layer polylines (e.g. subway lines) and using them in Google My Maps?

I am trying to create a Google My Map of Tokyo Metro and Toei Subway lines. So far, I've been painstakingly drawing the subway lines manually, only using a mouse. Here's what I've got so far (WIP, of ...