Questions tagged [snapping]

Automatic process of moving points or features to match or coincide exactly with coordinates of another feature within a specified distance, or tolerance

Filter by
Sorted by
Tagged with
3
votes
1answer
200 views

Does Snapping work for lines as well as polygons?

I can get snapping working with polygons to form a set with full coverage but I can't get it to work with lines. What I want to do is have the end of one line segment snap to the end of another. I....
5
votes
2answers
416 views

Snapping function doesn't work with complex polygons in QGIS?

I need to snap out parts from a polygon. I am using the "split part" to mark the area I need to erase: In order of snapping an area, I drew a line inside the polygon. Sometimes this method does not ...
3
votes
1answer
1k views

Snapping points to lines using ArcPy?

Using ArcGIS Desktop 10.1, I have 2 Feature Datasets in a geodatabase. One dataset contains bus routes and the other contains bus stops for each route. I want to create a script that will snap the bus ...
0
votes
1answer
97 views

Snapping polygons edges within the same shapefile

How can I snap polygons edges within the same shapefile? The objective is to get rid off blank spaces between polygons edges.
2
votes
2answers
253 views

ArcGIS snapping accuracy

I have a small issue regarding snapping accuracy in ArcMap 10.1 (Build 3035). I work on shape files in WGS84. In the editing options I did set the 'display measurements using' --> 20 decimal places. ...
4
votes
1answer
779 views

How do I create a target geometry to use with JTS GeometrySnapper?

I am dealing with geospatial queries on a database. The query returns all data sets within an arbitrary bounding box, given a point associated with the data set is within this bounding box. Since the ...
2
votes
1answer
453 views

Moving multiple points from different layers to same location in QGIS?

I have this scenario : These are 2 different layers, each square has points at the corner, and the goal is to have the points of each square at the same exact location with a good accuracy (if you ...
3
votes
1answer
280 views

Deactivate Snapping for Measure Maptool (mActionMeasure) in QGIS temporarily

I use the QGIS measure-tool to measure distances. I often would like to deactivate the snapping temporarily while using the measure-tool. Is it possible to deactivate snapping (for example with a ...
1
vote
1answer
60 views

Editing snapped polygons in QGIS: is releasing of snapped vertices possible?

I have made a layer with polygons that are snapped to each other. Now I would like to edit this layer and create some extra plots in between them. Is it possible to "unsnap" the vertices? I am using ...
0
votes
1answer
146 views

QGIS snapping to an offset outline

i'm facing a problem when it comes to snapping a line from one layer to an outline from a different layer what i'm doing is drawing a polygon and i added another style to it and had it offset ...
1
vote
1answer
142 views

Clipping multiple resampled rasters to same size using ArcGIS Desktop?

I have various rasters of environmental variables that were imported as GeoTiffs or NetCDFs. The rasters had varying cell size which I fixed by resampling them using the Snap Raster function in ...
1
vote
1answer
143 views

Editing polyline data, can't snap or modify feature

Editing in Desktop standard 10.3 and I am having issues with snapping polylines. I keep getting the same error below when I try to snap or move a line. Any ideas On why this might be happening?
1
vote
0answers
113 views

Cancel/pause a Geoprocessing Task without rolling back?

I have a Snap Geoprocessing task that is for about 57,000 points to lines. The issue is I need to restart the VM it is running on. I have no idea how long it is going to run as it has been going for ...
1
vote
1answer
47 views

When Executing Snap Tool, Automatically select feature when Multiple found [closed]

I currently have 50,000+ points that have to be snapped to lines in my fiber network. Issue is I do not have the time (or patience) to sit here and make the selection every time there are multiple ...
1
vote
1answer
197 views

Using Snap tool with iterator in ModelBuilder?

I have a folder containing large number of shapefiles that I would like to snap to a surrounding buffer. I need to snap UK district boundaries to 500m buffer around coastline. I have produced 200m ...
5
votes
1answer
910 views

Temporarily suspend snapping in QGIS

Is it possible to temporarily suspend snapping with a shortcut Key in Qgis, like its possible holding down space in Arcmap?
1
vote
1answer
111 views

Snap point to a specific line

I have been snapping points to lines using distance. In a couple of cases a point has gone to the wrong line, where there is more than two lines near each other. (see photo). How do I move the point ...
0
votes
2answers
2k views

Snapping points to nearest points automatically in ArcMap? [duplicate]

In ArcMap, is it possible to automatically (through a tool) snap points in one point layer (A), to points in another point layer (B)? I do not wish to snap the points to a line, nor do I wish to ...
1
vote
1answer
108 views

Cleaning shapefile with multiple boundaries defined more than once

I have a shapefile which contains a lot of polygons which define airspace. These polygons overlap and this is fine (e.g. different airspace configurations for the same airport). My problem is that ...
1
vote
1answer
156 views

Apply and Cancel snapping buttons missing in QGIS?

In QGIS 2.14 I can't apply or cancel snapping options, these buttons are missing. I haven't got any idea, what's the problem. The system is Win 7.
3
votes
1answer
199 views

QGIS 2.8.1 (Windows 64bit). Setting snapping to the “decoration” grid?

I was wondering if anyone knew of a way to snap digitizing to the grid you can create in View>Decorations>Grid? I can't see anything in the manual or the menus so I am thinking there probably isn't ...
9
votes
3answers
3k views

Snapping start- and end nodes of lines to other lines in PostGIS

There are plenty examples that show how to snap lines to points, but I haven't been able to find any (fast!) way of snapping the start- and end nodes of line strings to nodes of other lines. ...
10
votes
2answers
8k views

Snapping raster grids in R

I am trying to align two raster grids in R. Once aligned I would like to be able to add them together. I have tried to check whether making a stack would work: grid_snap <- stack(habi_sdw, ...
13
votes
5answers
2k views

How to snap a road network to a hexagonal grid in QGIS?

I'm trying to use QGIS 2.14 to snap a road network to a hexagonal grid, but I'm getting strange artifacts. I've created a hex grid with MMQGIS, cells are approx 20 x 23 m. I've buffered the road ...
2
votes
2answers
151 views

Filter Layerlist in Snapping Options Dialog

I have some large QGIS-Projects where I would like to filter the layerlist that is used for the advanced snapping options. Even if there are a lot of layers used in the project I only have to adjust ...
1
vote
1answer
75 views

Adjusting Points While Maintaining Line Network Node Connections

Currently I am working, within ArcGIS 10.4, on a pipe network for our water and sewer infrastructure which also contains all valves, hydrants, manholes, etc. These points are snapped to the line ...
2
votes
1answer
1k views

Snap to closest polyline from point

I want to create a new layer/shapefile, containing polylines that represent a connection to a grid. I have a layer of points and a layer of polylines (see picture below), based on this I want to ...
9
votes
1answer
2k views

Is there a way to automatically snap loose points of lines to close by vertices with Quantum GIS?

I have a vector layer of lines that were drawn with the snapping option off. I need to have them snapped but, there are hundreds of lines. Is there any solution to do this automatically or semi-...
3
votes
1answer
255 views

How can I aggregate coordinate points attributes from multiple similar layers into one layer following a specific route in QGIS

I'm new in QGIS (and GIS in general). I posted a screenshot to help you understand my question. I have data from 3 different runs measuring air quality in the streets shown in the screenshot. As you ...
3
votes
0answers
400 views

Change QGIS Snapping-Utility-Vertex-Marker

I am trying to change the appearance of the QGIS-Vertexmarker that is used when snapping is active and vertex/segment is found where you can snap to. I think i found the code snippet where in the cpp ...
1
vote
2answers
2k views

ArcMap 10.1 point snap: Unable to snap to a point please help!

Very basic question sorry, missing some fundamentals. Outline: I have 4 points as a .shp also converted to .lyr that I brought in as a x/y table and converted. I want to create a polygon as a ...
2
votes
2answers
409 views

Get the coordinates of the snapped and clicked point in ArcGIS Engine

I am developing an ArcGIS Engine program. I am using the code below to activate snapping to a layer programmatically. I want to get the coordinates of the snapped point (clicked point). I know I must ...
2
votes
4answers
3k views

How to connect stops to road for network dataset?

I have three files that cover a bus route network, road network and bus stops. I want the bus stops to be the connections between the road network and the bus route. When I try and build the network ...
2
votes
1answer
143 views

Extract a polyline from a Geoserver shapefile

I have a GeoServer which contains a shapefile with some roads on it. Is it possible to programmatically query the GeoServer and extract a specific road from it and display it in a layer? I'm using ...
1
vote
1answer
823 views

Why is ArcGIS API for JavaScript Map.setExtent snapping my extent?

I'm having some problems setting the Map extent using ArcGIS API for JavaScript 3.18. Whenever I call setExtent with myExtent, the Map ends up at some extent that is close to, but significantly ...
1
vote
1answer
947 views

Snapping point to point based on attribute?

I'm using ArcMap. I have two identical point feature classes, one snapped to a line and the other not. Each point represents a telecommunication pole and the line represents fiber optic cable. I ...
1
vote
1answer
247 views

Making polygon boundaries of different feature classes coincident?

I have two polygon feature classes: Cadastral layer and another polygon layer "zones". In both feature classes the polygon boundaries are coincident inside their feature but not between the ...
2
votes
0answers
170 views

Topology Checking issue in Qgis 2.14.1

I am working on a large data set of Road with snapping tolerance 5px with topological editing option enable. When i am zooming to the snapped vertex with zoom level upto 1:50, its looking snapped or ...
1
vote
0answers
420 views

Vector topology cleaning of shapefiles not showing cleaned results QGIS(2.8.6) and GRASS

I tried to do some topology cleaning with GRASS v.clean (snap tool)but the cleaned result is not showing. Using the break tool works But for some reason i have not been able to run the snap tool and ...
2
votes
0answers
59 views

QGIS Snapping is not aligned with layers

I was trying to draw lines based on hex grid, but snapping give me wrong position of hex corner. As you can see, I used snapping-advanced-25 pixel from hex grid, but it is not aligned hex grid. It ...
0
votes
1answer
458 views

Finding and snapping nearest point to polyline/point

I'm new to Python programming in ArcGIS, and I'm currently trying to write a script which I think is beyond me right now. Script should take each point from first layer and: Snap this point to ...
2
votes
1answer
529 views

Snapping “Point to Line” Results to Correct Streets in ArcGIS for Desktop?

Here is the problem I am facing. After geocoding some addresses, I used the "point to line" tool. Some long streets with minimal matching address points created long lines that intersect the road ...
6
votes
1answer
1k views

Snapping while measure in QGIS?

I've been reading here and there that snapping while measuring should work in QGIS, but i can not make it work for the life of me. https://hub.qgis.org/issues/8537 All the snapping options are set ...
1
vote
1answer
53 views

Extend line (utility-water) to polygon (building)

I have several thousand water lines that need to simply be extended to the edge of the nearest building. Some of my lines do touch or intersect the buildings and some don't. They are ranging from a ...
2
votes
0answers
276 views

ArcGIS PRO Memory Leak Caused By Single Feature Class [closed]

I use a combination of ArcMap and PRO on a daily basis. It doesn't appear that many people are using PRO yet based on the lack of documentation online. All of layers are feature classes stored in ...
1
vote
0answers
382 views

Snapping coordinates/points across different layers in QGIS

I'm referring to the plugin that was Numerical Vertex Edit where it selected the nearest point in one layer and allowed for a copy and paste to another layer's any given point to match its coordinates....
1
vote
1answer
176 views

QGIS cannot snap

I am using QGIS 2.8.1 in Linuxmint 17. When I set the snap option, the message box is like this which is different from the pictures I found on the Internet. After I setting this and reload QGIS, ...
4
votes
1answer
126 views

point created on a line not precisely on line

In QGIS I wanted to move points to the nearest lines. I checked the solutions here, but there are using tools which I am not familiar to yet(POSTGIS or GRASSGIS). I figured out my own way with using ...
0
votes
1answer
525 views

Sticking GPS waypoints to closest road?

I am new with QGIS. I want to study the performance of different GPS receivers, and to do so I need to compute the error made by each one. The problem is that I don't have any reference to be ...
5
votes
2answers
931 views

QGIS doesn't update some snapping options from Python

I've just installed QGIS 2.14.3 (Essen) on a Windows 7 machine, so I've got the default configuration on everything. This means that under "Settings -> Options -> Digitizing", I've got "Default snap ...