Questions tagged [splitting]

Division or partition of geometric features

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40 views

Generating polygons that represent intercardinal quadrants (NE, SE, SW, NW) at Road intersections using ArcMap

I have a road polyline feature class in an Oracle 18c/10.7.1 geodatabase. I would like to generate a polygon FC that represents the quadrants of the road intersections. The polygon FC would have a ...
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1answer
40 views

Splitting self-overlapping lines with points using PostGIS

I have a line geometry that partially overlaps itself (think about a line going A -> B -> C -> B -> D) and a set of points (not on the line but close to it) that I want to use to split the line in ...
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19 views

Splitting polygon by sections obtained from IDW interpolation

I used IDW to show the rainfall pattern over a region ... the attached picture show the result ... my area split into three ranges that show 3 different colors... How can I split one original polygon ...
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56 views

Seeking open source software to Split Narrow Polygons

I am searching for an open source alternative to the Split Narrow Polygons function from ArcMap. It "identifies areas in polygon features that are narrower than a defined width. An output is ...
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0answers
45 views

Error trying to split a Linestring in PostGis

I'm trying to split a group of Linestrings when they cross a Polygon shape, I'm using the following query: SELECT v.*, c.name, (st_dump(st_split(v.geom, c.geom))).geom AS geom INTO table FROM ...
5
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1answer
161 views

Split polygon in equal parts in QGIS [duplicate]

I have a polygon of an area of 46,465m² and a perimeter of 136,1m. It is a rectangular polygon and I want to split it into three equal parts (which are my treatment blocks). Could anybody give me ...
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1answer
20 views

Clipping layer with every feature in another layer using ModelBuilder

Currently working with ArcMap 10.5, from a gdb, and using ModelBuilder. My python knowledge is null. I have a road layer (line), and then a city limits layer (polygon) with various feauters (up to 30)...
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1answer
22 views

Clipping roads based on their county [duplicate]

I have both county shape files and all road lines for the state, but I would like to clip the roads based on what county they are in. How can I do this as a batch or model in the ArcMap application ...
3
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1answer
117 views

Splitting feature in OpenLayers 5?

How do you split an OpenLayers Vector Feature (Polygon or a LineString)? i.e ux: select feature, select a 'split' UI button, draw a split on-top of the polygon or through the line. The feature ...
2
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1answer
22 views

Split a polygon into smaller parts without using Split

Is there an alternative to split in ArcMap 10.4, if you don't have the advanced license? What I want to do is split a polygon according to another polygon. I want to preserve the extent of the ...
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1answer
71 views

Split polygon with selected line from another layer in QGIS

I am trying to split a selected polygon ("regions") with a selected line from another layer ("streets") in QGIS 3.8.3. In the example below, I want to split the selected polygon coloured in yellow ...
5
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1answer
73 views

Splitting vector layer in R

Is there a way to replicate the Split Vector Layer function from QGIS in R? I have a Shapefile containing around 20 polygons that I'd like to split into 20 separate files. I guess since it's in ...
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0answers
46 views

processing.runalg('qgis:splitvectorlayer') --> wrong Output directory

I'm tryiing to split a vector layer using this code : processing.runalg('qgis:splitvectorlayer', 'D:/Images_Sentinel_2/2A/shp_taitt/contour.shp', 'nom', 'D:/Images_Sentinel_2/2A/shp_taitt_split') ...
1
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1answer
60 views

Splitting line with equal parts in range [closed]

How to split line into equal parts in QGIS, with a certain condition: the parts to be between 50m to 150m?
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0answers
31 views

Splitting large amount of features using arcpy

We are publishing a geoprocessing service that will split a large amount of features in a file geodatabase. The script uses the arcpy.defense.SplitFeatures() method, a ResourceSrf layer or a user ...
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0answers
39 views

Is there a tool to cut a polygon with the outline of a raster layer?

I would like my polygon layer to be cut into two where the end of the raster layer meets the polygon, is it possible? I've tried to polygonize my raster layer, but that doesn't seem to work. Any ...
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0answers
15 views

Removing overlap while spliting polygon layer with multistring layer

I want to split a polygon layer with multi-string layer, but I found an overlap between polygon after the split. How can I remove the overlap? SELECT distinct a.id,a.name,a.id0,a.name0,a.city,a.area, ...
3
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1answer
98 views

Dividing polygons into equal parts by the number of points inside

I would like to divide many polygons into 2, 3 or 4 parts. I have vectorized plants. Sometimes 2, 3 or more plants hide under one polygon. Depending on the size I just have to divide the polygon into ...
2
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1answer
89 views

Splitting line with equal end parts

In QGIS 3.8.2 I would like to split line into equal segments. The issue is, that v.split splits the line into the required segments, except the last segment. I would like to split the line into equal ...
3
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1answer
85 views

Measure collected polygons in Geometry Generator, avoiding extra texts from multipart polygons

I combined a set of polygons on the first instance of Geometry generator using something like this: buffer(buffer(collect( $geometry, concat("MZNA","REGLABEL")), 0.1), -0.1) Buffers are meant to ...
5
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2answers
622 views

Splitting polygons at narrowest part using R?

I have a dataset of polygons like this one: I would like to split these polygons in separate parts at their most narrow location (if they have one). For example the two small polygons should not be ...
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0answers
15 views

Split height data based upon grid? (Same as Create Grid, Intersection, Split Data for Vector)

I have vector data for a large area that I have split into 2km x 2km layers using Create Grid, Intersection, and split, within the vector menu. I've downloaded STRM data for the whole area. I'd like ...
2
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1answer
46 views

Split features of multi-part polygons according to condition(s) in QGIS

I have a multi-part polygon with a large number of irregularly-shaped features (>600 features). I would like to split them into smaller sub-features/ segments(?) and assign a unique id to these ...
0
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1answer
49 views

Splitting OSM files into multiple smaller pieces using QGIS?

I have a large osm file of a city. I want to split this file into multiple smaller pieces (e.g 50) and retain all smaller pieces for further use rather than just a portion of it. Is anyone aware of ...
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0answers
20 views

Can ArcGIS solve split delivery problem, for each order split into like 2 or 3 orders ateast?

I am trying to solve the split delivery vehicle routing problem using ArcGIS desktop. I first tried splitting the orders into very small quantities like 20. Before splitting, my original orders were ...
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1answer
61 views

Split lines by polygons PostGIS

I have lines that I would like to split at polygon boundaries. The line table is MULTI and the polygon table is MULTI and was derived from a MULTILINESTRING table that was buffered then unioned to ...
1
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1answer
27 views

Assigning points to all bends on polyline in QGIS 3.6

I have a series of polylines representing water pipelines that I want to clean up. I want to split the pipeline polyline at key locations where there is a fitting such as a stop valve or hydrant. ...
2
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0answers
49 views

Splitting layer with many polygons into independent shapefilles? [duplicate]

Is there any way to save many shapefile, which are not multipolygons, into shapefile, and then iterate over them? I have shapefile with plot polygons and I want to have each one independent in order ...
3
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1answer
107 views

QGIS: Split with lines does not fully work

I'm using QGIS 3.8 and I've got two shape files which I would like to cut in pieces using Split with lines Both times I used the algorithm the first two lines did not cut through my shapes, while the ...
1
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1answer
18 views

Splitting lines: Options for managing IDs and related records

I have roads in a feature class (Oracle 10.3 geodatabase). Roads are split into separate lines where they intersect. This is an established business rule that cannot be changed. Each road has ...
4
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2answers
106 views

Splitting feature says invalid geometry but Check Validity says its valid?

I am trying to split features in a shape file but I got an error message. I've had cases in other shape files where the message also appear. I then run the "Check Validity" option and rearrange the ...
3
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1answer
55 views

Determining if Parcel is Sub-Dividable?

I am trying to determine which residential real estate parcels are sub-dividable but am running into issues when it comes to placement of an already existing structure on a parcel. For example, let'...
1
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2answers
639 views

How to pull values from one geodataframe to populate corresponding column/rows in another geodataframe

I have 2 geodataframes; one made from polygons (bldg_res_df) and one from centroid points (parcel_res_df). I used .concat to combine them into a single geodataframe to do some calculations. df_list = ...
1
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1answer
54 views

Split polygons by area/percentage with QGIS 3.x

Is there a function in QGIS 3.6 Noosa that allows me to split polygons with given area or percentage? There is a plugin for QGIS 2. "split polygons" that seems to have exactly what I'm looking for, ...
2
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0answers
33 views

QGIS splits line feature at all intersections? [duplicate]

I have a long GPS track that I've converted to a shape file. I need to divide it into segments. The first time I use the "split features" tool, it makes a cut where I draw my line, but also splits the ...
1
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1answer
74 views

Problem creating a GeoTIFF with RGB splitting image - R

I've like to split a RGB raster in multiple pieces and save each image in GeoTiff format, but in the file name I need the count of points (pts) inside each piece. My code runs perfectly when I used a ...
0
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0answers
27 views

Split lines in R creating 2 group ids [duplicate]

I would like to split a linestring into two features separated by a point. Here's what I mean: This is what I've tried so far in R using the sf package: Sample data library(sf) library(dplyr) # ...
1
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1answer
151 views

How to get only Intersected polygon in Open Layers 3

I am trying to draw a line on polygon which I want to split, Example: I want to split 616 polygon as show in image with below code when I tied to get intersected polygon I am getting 616,617,615 ...
2
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1answer
37 views

Using splitGeometry in PyQGIS

Using QGIS 3, I'd like to split a polygon using a line. My inputs are .geojson files, but that should be irrelevant: Line: { "type": "FeatureCollection", "name": "line", "crs": { "type": "name", "...
3
votes
1answer
297 views

Splitting vector layer into shapefiles (not geopackage) using QGIS?

Using QGIS 3.6.3, I have a layer with ten polygons. I want to use split vector layer to split the file into ten shapefiles, But the result output file is a Geopackage. How can I get ten shapefiles by ...
5
votes
2answers
167 views

Splitting polygon using another polygon in QGIS?

I have two polygon layers (yellow and orange in the attached image). I am wondering if there is a way to get a count of the number of isolated areas that the orange polygon has divided the yellow ...
2
votes
2answers
285 views

How do I split a line feature in segments of a set interval distance in Qgis?

In order to record some vegetation along a Dutch highway, I want to create a line feature along said highway of about 25 kilometers. The line feature must be split every 100 meters to create seperate ...
1
vote
0answers
15 views

Error while converting WGS84 => Albers-Siberia by ogr2ogr [duplicate]

While converting from one geosystem to another polygons crossed by 180 meridian left got split into eastern and western parts. Tool used - ogr2ogr library. Initial geosystem - WGS84, target - Albers-...
2
votes
1answer
529 views

Client-Side Polygon split

I wanted to know if there is a way to split a polygon using JavaScript. So I have a web map which uses Leaflet API, and the user needs to cut polygons which are shown in the map using a straight line. ...
2
votes
1answer
223 views

Splitting polygons and dividing attribute value proportionally using ArcGIS Pro?

I am using ArcGIS Pro 2.3.0. I have two feature classes (pictured below), RED polygons and BLUE polygons. The RED polygons have a numeric attribute, Value1. How can I split the RED polygons with ...
3
votes
1answer
275 views

QGIS SAGA split lines at points creates redundant lines

I have 2 projected (ESPG 2039) layers of roads and points (bus stops and junctions). I snapped the points to the roads layer and this is how it looks: I then try yo use Saga Split lines by points to ...
2
votes
0answers
48 views

Splitting line into two lines with GRASS GIS?

I converted a raster to polygon, after converting polygon to lines I have one line of the channel of a river which border a river. But I need to split this line in two lines: left border and right ...
2
votes
1answer
102 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 ...
0
votes
0answers
24 views

Splitting polygon using ArcGIS Pro ModelBuilder?

I would like to split several polygon features using other polygon features inside a model. I use arcgis pro 2.2.4 When I do it manually, it works perfectly fine and quite fast, but inside the model ...
0
votes
2answers
192 views

Splitting polygon with line in ArcGIS Pro?

I am using ArcGIS Pro and I want to cut my polygon features with a line, as the output would be also a polygon. I have no special licences, so I am looking for an alternative way.