QGIS – How to Split Polygon into Equal Segments in QGIS

polygonqgis-2.12splitting

I try to split polygon layer into equal length segments of 1000m:

The attribute table of the layer is:

I have read those links but didn't find a solution to my question:

How to split a vector in equal smaller parts in QGIS or similar?

How to split an irregular polygon into equal areas?

I also tried to use "split vector layer" function but didn't get desirable answer.

I also tried to find the "Polygon Splitter" (in this link polygon split with predefined area) plugin but I didn't find it in the Plugin list.

Best Answer

The name of the Plugin is Polygon Splitter which splits polygons into equal area parts. The Plugin is marked as experimental, therefore, you need to enable "Show also experimental plugins" from the settings as shown below

Here is the plugin after enabling "Show also experimental plugins"

Related Solutions

[GIS] Split polygon into several smaller polygons in QGIS

Michael's solution above gives the answer

Include additional polygons around the borders of the response boundaries of interest (this is to ensure that all areas of the response boundary are contained within one of the created sub-polygons) (or the bounding box)
Use Vector -> Research Tools -> Random Points for the ResponseBoundaries layer
Vector -> Geometry Tools -> Voronoi Polygons to create a layer of smaller polygons
Vector -> Geoprocessing Tools -> Intersect

[GIS] Split polygons into equal areas within each region

Ok, I had a go at this using existing tools for QGIS...

Download/enable the Buffer by percentage plugin from:
```
Plugins > Manage and Install Plugins...
```
This creates buffers for each of your features.

Run this plugin on your layer and use the Buffer area percentage option. Enter 20 (for 20%), save the output and run it again for 40, 60, and 80.

Here is an example layer:

And here is running the plugin:

And here are the results of the plugin (it will help to add the percentage value in the name as we will use this to identify the layers):

Now we need to run this really ugly model (or you can download it and copy it to your /.qgis2/processing/models folder):

When you run it, you will need to enter the correct layers according to parameter (hence why we need to include the % value in the name):

The output should hopefully have split your features into five equal parts. I tested this on several areas and calculated the area using the Field Calculator with the expression $area. Although it might not look attractive to what you wanted in your image, it does seem to split the features equally...

Best Answer

Related Solutions

[GIS] Split polygon into several smaller polygons in QGIS

[GIS] Split polygons into equal areas within each region

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