Also known as a "nodes", the points specifically used to describe a polygon or polyline in a "vector" or "linestring" representation.

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0answers
12 views

Matching vertices in igraph (R)

This is my first question so apologies if it's poorly explained... I'm currently using a combination of ArcMap 10.2 and igraph in R to analyse a network with associated data. I have an igraph ...
1
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1answer
51 views

Does moving vertexes split them?

When i try to move my vertexes from my line feature in QGIS 2.10, the line is getting "separated", also when i delete the vertexes my line is getting holes. Any ideas why?
2
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2answers
57 views

Modifying vertices x,y values to remove all value from 3rd decimal in ArcMap?

I want to check whether there is a way to update the vertices x, y value and remove all values from the 3rd decimal. I only want 2 decimals (no matter the 3rd decimal is 0 or 9, just remove it). The ...
1
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0answers
48 views

Insert vertices coordinates in polygon [duplicate]

I have a polygon layer. I extracted the coordinates of vertices, and now I need to add these coordinates in each polygon. The final shapefile should have an attribute table as follows: where X1, ...
0
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2answers
96 views

How to remove unnecessary vertices

I have over sampled polygons that I need to simplify, without changing the shape. basically, I want to reduce the number of vertices, by eliminating the ones that are useless and have the polygons ...
1
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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
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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 ...
0
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1answer
59 views

What's the PostGIS equivalent to Extract Nodes in fTools / QGIS? [duplicate]

I'm looking to convert Park polygons from OSM into points. The QGIS fTools Extract Nodes tool will convert a polygon to points at the vertices. What is the equivalent function or work-flow in ...
4
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2answers
85 views

How to extract nodes with PostGIS to a multipoint geometry

I have a line in a PostGIS table test_line. I want to extract it's nodes into a multipoint geometry. I tried the following: SELECT ST_Collect((ST_DumpPoints(the_geom)).geom) FROM test_line; But it ...
1
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4answers
342 views

Automatically Remove Duplicate Vertices in a Polyline

I am trying to automatically identify identical vertices within a polyline and remove them without converting the vertices to points first. I have converted the vertices to XY points and identified a ...
0
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2answers
52 views

How to ensure lines are closed?

I often use closed lines to cut polygons on another layer. When a line is not closed the cutting operation fails. Is there an out-of-the-box tool that can easily tell me that a line is not closed ...
3
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3answers
792 views

How to clean up a polygon by removing vertices and lines within?

After merging a set of shapefiles I've ended up with polygons that have vertices and lines within them. Is there a simple tool to remove these vertices and clean the polygon in ArcMap 10.2? I realise ...
1
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0answers
102 views

Check for overlapping vertices without topology, spatial analyst, or 3D analyst in ArcGIS

I need to check for overlapping vertices in breakline and stream polylines but I do not have any extensions in ArcGIS 10.2. Does anyone have a work around? I have ET GeoWizards or can create a tool if ...
6
votes
3answers
1k views

Order of polygon vertices in general GIS: clockwise or counterclockwise

Two days ago I asked a question about the internal storing order for the vertices of a polygon in ESRI shapefiles. That question was answered (Are polygons stored clockwise or counterclockwise in a ...
3
votes
2answers
60 views

Breaking connecting between features (Editor tool)

I snapped a series of lines to a point (The ? symbol on the picture). Now, I am trying to unsnap them so I can connect them to their respective line I just created. My question is simple. How do I ...
0
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0answers
63 views

Line to points at bends

I have a pipeline (shapefile) that I am trying to convert to points where the pipeline has a bend in it. I tried to convert the vertices to points in ArcMap 10.1, however this will not work in this ...
3
votes
2answers
1k views

Converting Vertices of Polylines and Polygons to Points and Maintain Attributes

I'm pretty sure someone has done this before, but I'm having no luck. I'm using ArcGIS Standard version 10.2.1 and I want to convert all the vertices of a polyline or polygon to points. Essentially, ...
1
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1answer
151 views

Why sometimes Network Analyst can not find the shortest or the best route?

Normally in Network analyst and route detection it has to find the shortest and efficient way.But here in my work I can see that it does not find the best choice.I wonder why it chose the longer path ...
1
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1answer
263 views

How to split multiple polygon layer into multiple layers by vertices parts?

I have a layer in Arcmap 10 that was brought over from Auto CAD (layer A). This layer has multiple polygon shapes. I need to split these shapes from layer A, and place them into their own layers. ...
1
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0answers
304 views

Vertex and Nodes Tool - Migrating from 9.3.1 to 10.2.1

A previous employee built a custom tool for users in our organization that displays nodes and vertices when editing. Essentially the purpose is: The Display Topology Nodes button will symbolize the ...
2
votes
3answers
1k views

How to remove vertices or lines within a polygon?

I have transformed a *.dxf-file into a polygon shape-file. In many of the polygons i have lines whicht do not belong there but i can not delete them as i normally delete vertices on polygons by ...
0
votes
1answer
323 views

How to find and quantify duplicate vertices on a polygon/polyline in ArcGIS 10.0

I need to clean up topological errors in various shapefiles and databases. I did read that the Repair Geometry tool could clean duplicate vertices but how can I know the number of errors before and ...
1
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1answer
132 views

Find the vertices of an ROI in XROI using IDL

I need to find the vertices of an ROI shape created in IDL's XROI, so that I can redraw the ROI on multiple images. I know you can find the centroid, area and perimeter with the GEOMETRY command, but ...
0
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0answers
95 views

Create Vertex and add empty attributes to it

How can I create a vertex(and then a point feature on the vertex) on a polyline and give it some empty attributes(create fields), move an existing vertex, delete vertex? I am in ArcGIS environment and ...
2
votes
1answer
222 views

Extract number of vertices in each polygon in R

Simple question: how to extract the number of vertices in each polygon in R? I've found one way that works, but this is very slow (when x is a SpatialPolygonsDataFrame): y <- fortify(x) n.verts ...
2
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1answer
293 views

Evaluate minimum points required to define polygons based on an error threshold

I need to build a model or write an algorithm to do this, which I would like you to share your ideas with me. here is my cadastral problem: I have plenty of polygons and I need to make a report of ...
5
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3answers
2k views

How tool to split polylines into two-part lines at vertices in ArcGIS for Desktop 10.1?

I'm using ArcGIS 10.1 SP1 at and we have a problem. There is a serious topology bug that I've mentioned in another question that is affecting our workflow. At present, Esri has stated the fix will be ...
1
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0answers
163 views

When digitizing Lines, vertices are automatically generalized when finished feature

I am creating lines(feature class) and when the feature is finished Arcmap 10 will automatically generalize/smoothens the line. Is there any reason why this is happening? is this a bug of ArcMap 10? ...
3
votes
1answer
496 views

Why is ArcMap 10.0 editor deleting some added vertices and simplifying polygon?

I am using ArcMap 10.0. I am trying to edit (and add) vertices in a polygon. I start editing, (using "Edit Vertices" tool), and add many vertices in the polygon. Then when I am done, I save the ...
2
votes
1answer
223 views

Why does ArcMap edit session show different vertex count on feature than arcpy/ ArcToolbox

I am looking at features in an ArcSDE geodatabase via ArcMap. The feature shows to have four vertices by viewing the vertices in the map and by looking at the sketch properties. However if I run a ...
5
votes
3answers
2k views

Deleting multiple vertices at once?

I have a polygon feature class that I've converted to representations so that I can delete some vertices. I'm doing this to simply some of the shapes manually, but I'd like to speed this up by ...
5
votes
1answer
451 views

New Snapping while editing vertex's in ArcEngine 10

Is it possible to use the new (not classic) snapping functionality when editing the vertices of a polygon feature in ArcEngine 10. I would like editing vertices to behave exactly the same as editing ...
3
votes
4answers
9k views

Change number of decimal digits for features in ArcGIS 10?

I am editing vertices in polygons and points in ArcMap 10, and realised that they only hold 3 decimal digits for the X, Y coordinates, but I would like at least 6 decimal digits. Even if I type in ...
14
votes
8answers
25k views

Extracting coordinates of polygon vertices in ArcMap?

I've got about a dozen polygons in a feature class loaded in ArcMap 10, all in geographic WGS 1984. How do I easily obtain the coordinates associated with each vertex of each polygon in that feature ...
6
votes
4answers
4k views

View vertices in ArcGIS

In ArcGIS, is it possible to change the polyline symbology to show vertices? Or do I need to extract the points via Feature Vertices To Points? This becomes a pain if I want to edit the source ...
2
votes
1answer
1k views

Is there a function or tool that will add vertices to polylines where endpoints are snapped to edges? (ArcMap)

My friend and I are creating a walking network, and we have been having issues getting the routing to work. We just realized that the reason why our routes are messed up is because we snapped our ...