Division or partition of geometric features

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2
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1answer
639 views

How to split zAware polyline by points programmatically with C#?

I'm trying to split a polyline by the boundaries of a polygon using IPolyCurve2.SplitAtPoints using C#. The polyline I'm trying to split is zAware and holds elevation values at a regular interval. ...
2
votes
1answer
488 views

Splitting large shapefile into numerous smaller files based on number of objects in each smaller file

I have a shapefile containing approximately 600 000 point-objects. Unfortunately, for a couple of reasons I need to split this file into a larger number of shape-files each containing approximately ...
2
votes
0answers
165 views

Splitting Line.shp at Point.shp with Python/ogr

I'm trying to modify some ESRI Shapefiles using Python with gdal/ogr module. What I want to do is quite simple, but I didn't find any solution by now. I have two shapefiles: (1) Lines.shp and (2) ...
2
votes
0answers
170 views

How to split a raster into x tiles that overlapped by x km?

I have a raster that I split into three tiles by using the function Split raster in ArcMap as follows: How can I split my raster into three tiles that overlap by 2 km as follows : ?
2
votes
0answers
41 views

Dividing a polygon into two OpenLayers

I'm using OpenLayers to draw a polygon to my users. I want the ability to implement through a line, split the polygon into two, with the cutoff line that the user drew. Does anyone know if this is ...
2
votes
0answers
132 views

Dividing a line into 250m segments

I am currently working on a hydrology project where I am trying to break a stream network into 250m segments. The problem is that the streams are not all adjacent, as I have clipped the NHD file to ...
1
vote
3answers
311 views

How to split a line every x meters? [duplicate]

I have a line that I ultimately want to split up into points. The points should be every 100 meter along the line. So I don't want to extract the nodes. Are there any OpenSource (QGIS, Python) tools ...
1
vote
2answers
143 views

How to make digitization more detailed afterwards with QGIS?

I digitized already two areas, bordering each other on one side. Than I realized, more detail was needed! What do you suggest as a fast way to do so? Adding each time new dots/verteces takes so ...
1
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3answers
646 views

Divide Line Into Sections Using Points Offset from It in ArcGIS Desktop?

I have track (line) and milemarkers (point). Each point is offset by a different distance. Is there a way to find where each point would intersect the line if going perpendicularly out from the line? ...
1
vote
1answer
40 views

FeatureToPolygon (to cut polygons by line) not working correctly outside of ArcGIS

I asked a question yesterday, about splitting polygons using a line, and I ended up using the approach that is described in the comments here. Although this worked with my test data, it causes a lot ...
1
vote
1answer
69 views

Split field name of feature class in ArcGIS

Is it possible to split a field name within an attribute table of a feature class into two new fields where just the field name is being split. Please note that I do not need to split the features ...
1
vote
1answer
92 views

How to get the LineStrings from a MultiLineString

I was wondering if there is a way I can extract the LineStrings from a MultiLinestring object. What I am really trying to do is look into a MultiLineString and see if I have a certain LineString. I ...
1
vote
1answer
207 views

Force St_split() to return geometries in specific pattern

I'm Using PostGIS st_split() to split a polygon geometry by a linestring. Then I use st_dump() to return each of the splitted geometry and it is working fine. But the issue is I want to force ...
1
vote
2answers
118 views

How can I split polygons in the Natural Earth 10m land shapefile?

This problem, that I have also been struggling with, in QGIS 1.7.3 as well. Here are the steps to reproduce the problem: 1)Download Natural Earth 10m land shapefile from original website. *2)*Open ...
1
vote
1answer
104 views

Writing length of line along the line

I sometimes have to write out the length along a line for every couple of hundred meters or kilometers. This applies to pipes, when the construction team wants to know where along the pipe they are or ...
1
vote
3answers
85 views

Cut polygon into new polygons using lines in ArcGIS

I'm new to GIS and I work with ArcMap. I have a layer with an orthophoto of a graveyard. On top of that, a layer with an old scanned map of the same area showing all graves. I would like to make a ...
1
vote
1answer
45 views

Ratio policy for Intersect in ArcGIS Online?

I have two polygon layers in ArcGIS Online (for organizations) stored as Feature Layers; one is population block, another is the AOI polygon. They are overlapping and I want to find out what portion ...
1
vote
1answer
102 views

QGIS - split polyline

I need to create a shapefile with crossed streets. I can't split the lines to number each segment with the house number ranges.
1
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2answers
47 views

Splitting polgons in QGIS produces topology errors

I am trying to split existing polygons but when I do, gaps and overlaps are created between the polygon I am cutting and adjacent polygons. I have snapping switched on and have enabled topological ...
1
vote
1answer
41 views

Split linear features from non-linear in the same feature class

I have a vector layer (Originally a raster layer) of well sites, cut blocks, and seismic lines all lumped together in the same feature class and no distinguishing attribute between them. I want to ...
1
vote
1answer
766 views

ArcGIS 10.2 Extract Polyline from Start/End Coordinates

I have two files. A polyline shape file of highways and a spreadsheet that contains beginning and ending coordinates w/ descriptions of segments of the highways. For example: BegX, BegY, EndX, EndY, ...
1
vote
1answer
111 views

ET Geotools Split Lines at Vertices Issue

This might seem like a really simple question but for whatever reason I can't figure it out. How do I run the split line tool in ET Geotools on an entire polyline layer? I can do it for a single ...
1
vote
1answer
395 views

Splitting polygons in OpenLayers is not working

I have some WFS layers in OpenLayers, containing Polygons. I try to make a tool to split these polygnos and save them to db. //The layer which I want spliting work on var contract_layer = ...
1
vote
3answers
84 views

Split a layer into a single layer

I have two multi-polygon layers, one a map of land uses, the other borders of administrative areas. I am interested in analyzing the amount of land use in each administrative area, but the polygons ...
1
vote
1answer
243 views

Distance of many polygons to a segmented line

I have a shapefile of U.S. counties. I also have a line segment. I want to compute the distance of each county to the line. I have also divided the line segment into 10 equal segments. I want to ...
1
vote
1answer
64 views

How to split polygon features using an overlaid polygon layer in QGIS?

I have a polygon layer (pictured below) that I made by vectorizing a clip from the USDA Cropland Data Layer. The low resolution of the USDA layer causes fields that are separated by narrow roads to ...
1
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0answers
24 views

ArcGIS 10.1 - identify Vehicle Routes from Segment Counts

We have vehicle counts on every road segment in a small portion of our city, but we are trying to determine the route of individual vehicles on these segments. Is there an algorithm in ArcGIS 10.1 ...
1
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0answers
111 views

Splitting lines once at specified distance from each end?

This is related to an old problem of mine, regarding arrowheads on lines, which doesn't look very nice unless the line is very thin. It's even an ArcGIS idea with quite a lot of votes (although no ...
1
vote
1answer
93 views

Split a polygon based on density of points in ArcGIS 10.1

I have two layers: Polygon layer representing administrative boundaries Polygon layer representing topography (i.e. a map) In some of the administrative areas, the buildings (shown in the map) are ...
1
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0answers
27 views

ST_SplitRight() in PostGIS?

I am looking to split a shapefile via a line. I am interested only in the feature that lies to the right of the line; exactly what ST_SplitRight does here. Do any of you know of a way to do this in ...
1
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0answers
32 views

Is there a way of splitting roads at intersections with contours in QGIS?

I'm a beginner with QGIS. I need to split a polylines showing public roads at each intersection with a table containing elevation data (contours) which is also in polyline format. I will also need ...
1
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0answers
744 views

How to split multiple lines into equal parts or overcome split tool limitation using Basic or Standard license?

I would like to split multiple lines into equal aproximately 10m lengths. (Line length / 10m = number of segments) The split tool can only split one selected feature at a time. To overcome this I can ...
1
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0answers
183 views

Splitting a branched river network at point layer [duplicate]

I need to split a country-scale river network (polyine) at certain barriers (point) so the length of (branched) river sections that have a certain minimum length. I used the following procedure: 1) ...
0
votes
2answers
302 views

How to split a shapefile feature?

The world map that I am using from NaturalEarth.com has France and French Guyana as one feature. I want to split these into two separate shapes. I'm sure there is a quick fix for this, and the others ...
0
votes
1answer
130 views

How to cut/split multipolygon with blade (linestring) into two pieces using PostGIS? [closed]

I struggle to do split operation in postgis I tried to build a query but Im always fail. Id like to cut a multipoligon with a blade (a linestring) into two pieces. These two objects have specific ...
0
votes
2answers
363 views

Splitting Shapefiles [duplicate]

I am trying to create a code that will accept the input of a shapefile, and separate each of its features into separate shapefiles into a specified directory location. Can anyone help ? I am trying to ...
0
votes
1answer
123 views

Split lines with points while maintaining other dissolved lines

I am on ArcGIS 10.2. I have a line feature class of a stream network. I also have a point feature class along the main stream (line) where a catchment enters that stream. I have dissolved my whole ...
0
votes
1answer
25 views

Split a shape file of lines into even spaced segments

I am using ArcGIS ArcMap 10.2. I have a shapeless of polylines and want to split them each line into 100 m segments. I can see under the editor toolbar the split tool and that can divide each line ...
0
votes
1answer
88 views

What's the best way to break closed polyline using ArcObjects?

I have a polyline feature class with several closed lines (the start point = the end point). I need to break these lines in two features, using ArcObjects (doesn't matter Java, VB or C#). I have ...
0
votes
1answer
109 views

Split a line from point but with a certain distance [duplicate]

I am using ArcGIS 10.2. I need some suggestion about this problem, maybe there is a certain tool, but I think no. I think some python code... but I do not know from where to start :( I have two ...
0
votes
1answer
440 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 ...
0
votes
1answer
71 views

problems using the Split Features tool [closed]

i'm using the split features tool to create two polygons from a bigger one. The problem is, when i save the split i have done, half of the polygon disappears. But sometimes, after doing some more ...
0
votes
0answers
8 views

Spliting Raster Ortho to 8-bit Tiles

I'm trying to split a large orthophoto to smaller tiles in order to use them as textures on DEM tiles the same size in CityEngine. I've been using the Split Raster tool in ArcGIS to try and output ...
0
votes
2answers
49 views

Split polyline where it intersects with other lines in MapInfo

I have a polyline (bus route) which I want to split where it intersects with other lines (not polylines) I have created. I'm happy to initially do it manually to see how it works, although I would ...
0
votes
0answers
20 views

How to split by attribute into own shapefiles? [duplicate]

I'm using ArcGIS 10.2 for Desktop. I have a shapefile with multiple polygons. I want to split the polygons into their individual shapefiles. I tried using the Split but get hung up on the ...
0
votes
1answer
46 views

ModelBuilder, which tool should I use to rename layers with value from table?

Hi I have a ModelBuilder tool with an iterator that splits a feature into multiple shapefiles based on a attribute field. The problem I'm running into is instead of simply using the number values for ...
0
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0answers
16 views

Using USGS Raster Split but getting errors

I am working on an issue where I am trying to split the 2011 nlcd .img file into counties. I am really just looking at the midwest, so I have state county shapefiles for IA, OH, MN, MO, IL, IN and WI. ...
0
votes
1answer
22 views

Can A PLugIn in QGis let me cut polylines where the points of another shapefile are [duplicate]

I want to know if there is a plugin/tool in Qgis, that let me cut lines of a shapefile where the points of another shapefile are. Thanks in advance!
0
votes
1answer
86 views

What to use as split field or target workspace with Split tool?

I'm trying to use the split tool in arcgis 10.1 but I dont know what I should use as the split field or my target workspace. W:\S&P\s&p techs\Emily\Geodatabase\Geodatabase.gdb this is what I ...
0
votes
0answers
95 views

Dividing a polygon into certain areas (open source solution preferred)

I have a polygon with an area of 50.000m². Now i want to devide this area in two polygons of different areas with a line layer. The left polygon should have an area of 30.000m² and the right polygon ...