Linked Questions

I need to find a bounding box given 4 lat/long points and a bearing (as seen in the example picture). I always know which two points are lined up by the bearing (1 and 2 in the example), so I will ...

I am working with GPS tracks (lat/lon values) and my goal is to compute the minimum bounding box for a small geospatial library I am working on. The datasets are not huge, maybe a couple of tens of ...

I want to create bounding boxes around polygons, the bounding boxes will then be used in a ST_Hausdorffdistance to determain the squarness of every polygon. My first choice is using the ST_Envelope ...

Given a set of 2D or 3D points: How to find the center of geometry of an object? According to the following figure, the center of geometry differs from the center of mass if it is calculated in the ...

I have a dataset of building footprints vectorised from a raster dataset. The dataset is currently just a vector representation of the raster data. I would like a polygon dataset that only has ...

In this post we are looking for algorithms / ideas on how to find the maximum-area-rectangle inside a convex polygon. In the following figure, numbers are the areas of the fitted rectangles. As shown ...

I have a postgis table containing polygons. I want to transform my polygons to 4 points polygons : retrieve the smallest MBR. Here comes an illustration of what I want : My original polygon is in ...

I'm working with OSM data and many of my objects are simple 4-polygons (parallelograms), which can be expressed by 4 unique corner points. But the full OSM data has the shape represented by more than ...

I'd like to calculate the "Oriented Bounding Box" (OBB) which is the enclosing rectangle aligned to the longest extent of a point set (which is not necessarily aligned with the axes of the co-ordinate ...

How can I devise an R-code that can derive a rectangular bounding box (with 90-degree angle on each corner) for a set of points with arbitrary orientation? e.g. if the 2 longer edges have a 45-degree ...

I want a quantification technique to differentiate different shapes of polygons. For example, the following image consists of 3 seperate polygons, e.g., (a) is stretched to its tails, (b) is bowl ...