Manual
This plugin allows creating polygonal buffers around points; several types of polygons are possible. The plugin reads a vector file in input. If the vector file is not a point file, the centroid of each feature will be used as the central point around which to draw a polygon.
A vector file of points, lines or polygons.
An ESRI shapefile of polygon, one polygon around the centroid of each feature found in the input file. The input file fields and their values are copied from the input to the output.
The plugins can draw the following polygons around input points or centroids:
- square of dimensions 2xpaddingX by 2xpaddingX;
- rectangle of dimensions 2xpaddingX by 2xpaddingY;
- hexagon, its dimensions is defined by paddingX, which is the distance from the hexagon tips to the point of centroid.
You can also apply a rotation to the generated polygons, defining a rotation angle (positive or negative, in degrees).
It can be useful to extract the centroids of an input shapefile containing lines or polygon. Click the option "Export centroid of the input features", to save the centroids of the input feature (you must define an output file, paddingX and paddingY are disabled).
In its current version, PointToPolygon can't detect if an output layer is already open in QGis. In this case, the plugin is not able to delete the file, and therefore can't write to the define destination, resulting in an error.