The splitting tag has no wiki summary.
6
votes
3answers
659 views
How can i split by attribute in ArcGIS 10?
I'd like to split a single shapefile to multiple shapefile by attribute. I found ET Geowizard to do this but it's not free . I arcscripts.esri.com i found a tool named "SplitLayerByAttributes" but it ...
5
votes
5answers
738 views
How to split OSM roads into individual segments at intersections?
I want to create a road-network for use with pgRouting using OpenStreetMap data. I loaded a shapefile from GeoFabrik into a Postgres table (with PostGIS enabled). However, one problem I had was that ...
5
votes
2answers
559 views
How to split an irregular polygon into equal areas?
I am a surveyor and use QGIS for maintaining soil test records on civil projects and am constantly provided with test lot area or number of lots required. These are more often than not irregular in ...
5
votes
1answer
227 views
QGIS or Postgis - How to split polylines with a point layer?
In QGIS, I would like to split the polylines in a layer loaded in the workspace with the points in another loaded layer. If a point intersects a polyline, this polyline should be transformed into two ...
4
votes
1answer
84 views
How do I split a vector layer into separate grid layers?
I need to split a vector layer into 1km x 1km squares so I can carry out some calculations for these individual areas. Is there a feature to do this?
4
votes
2answers
193 views
Splitting DXF layers into Shapfile layers in QGIS?
When i load a dxf into QGIS all the layers are present in the attribute table. Is it possible to split this "entities" layer in QGIS into its component parts and save each component part as an ...
4
votes
2answers
210 views
Split a shapefile into multiple shapefiles based on a particular Field [duplicate]
I have a shapefile where there are 3 fields OBJECTID, NAME , LOCALITY. I want to create new shapefile that contains the geometry, projection etc. of the parent shapefile and according to the locality;
...
3
votes
1answer
168 views
ArcMap 10.1 Python split inconsistent string
I converted a kml file to a feature class. All of the fields from the kml were combined into two fields in the feature class. One of them contains information delimited by "/" and the other contains ...
3
votes
1answer
295 views
How to split a Polyline Geometry at a certain point in ArcObjects?
I have a polyline geometry and wish to split it into two different geometries, based on a given point on that line, in ArcObjects.
I have tried to find out how to do this, but to no avail. I found ...
3
votes
1answer
113 views
Splitting polygons leaves null values
I'm trying to split polygons with overlaping line features, using Split Polygons tool from Topology toolbar. The problem I encounter is that only one from new polygons have old attributes and others ...
3
votes
1answer
424 views
How do I split polygons that cross the dateline?
I have a dataset of country borders which I obtained from:
http://thematicmapping.org/downloads/world_borders.php/
I have that dataset in both shp and SQL, but I'll put out there that I don't feel ...
2
votes
2answers
280 views
How to Split a vector file into several different files using a Grid in QGIS?
I have a shapefile containing contour for a large area, and I want to split it into different shapefiles each covering a 1KM X 1KM area.
I have already created the required Grid shapefile in QGIS. ...
2
votes
1answer
71 views
split features (vector line) problem
Part of a stream is now underground so I'm trying to use split features to break the stream into two pieces. The manual says to select the feature, then the split features icon, then draw a line ...
2
votes
1answer
62 views
I made a Relationship Class(1-M). Its a street X our Address table. I can´t split the street. How to fix it?
I have a table "Addresses" and the Feature "streets".
The feature "Streets" are lines.
I need to do a relation with this table with this feature. What I do?
I tried built a "relationship class". The ...
2
votes
1answer
561 views
How to Split Features in QGIS?
I am new at using QGIS. How can I simply split features in QGIS? The manual tells to simply draw a line through the polygon you want to split. But it doesn't work. The line disappears when finishing ...
2
votes
3answers
87 views
What are efficient algorithms to join segments and to split a line into segments?
Referring to the Figure below:
How to efficiently join segments into lines?
How to efficiently break lines into segments?
The above will be applied million times.
2
votes
1answer
123 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
245 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 ...
1
vote
2answers
73 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
vote
3answers
42 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
41 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
1answer
92 views
Split vector layer by field name
I have a vector layer of 108374 lines I want to split the vector layer into field names of the layer, which is 17. Now, I want to create a new vector layer containing one of the field names e.g. ...
1
vote
1answer
126 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
0answers
65 views
Splitting a branched river network at point layer
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
55 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
0answers
53 views
Splitting a TAB file by attribute?
I have TAB file with LOADS of points. Each point as a unique ID and group assigned to it (ranging from 1-154). I'm wondering if there is an easy way to split this up into a TAB file for each group, ...
0
votes
0answers
63 views
ARCGIS Polygone manipulation : Splitting if area>=5KM or merge if area<=0.5KM
I'm just facing a wall. I don't know if even possible to complete the process with modeling. I may need to work with python script which I'm not used to it.
In this state, I got a buffer created from ...
0
votes
0answers
64 views
why are split-lines saved in the attribute table? (qgis 1.7.4)
A few months ago I splitted some lines in a shapefile with official roads because they are not accessible anymore. Now I loaded that file again into my project and the splitlines appears. Because I ...
