Top "Polygon" questions

For issues relating to the creation, manipulation and rendering of polygons in graphical user interfaces.

How to get parcel or zipcode boundaries for display in map?

I want to add a boundary to a specified parcel of land so that it stands out in the map …

google-maps-api-3 polygon zipcode boundary parcel
line simplification algorithm: Visvalingam vs Douglas-Peucker

I am trying to implement a line simplification algorithm. The main 2 algorithms I found are: Ramer-Douglas-Peucker Visvalingam-Whyat Currently I am …

algorithm polygon computational-geometry simplification
an algorithm for fitting a rectangle inside a polygon

I have a kind of cutting problem. There is an irregular polygon that doesn't have any holes and a list …

algorithm polygon computational-geometry rectangles
Converting a column of Polygons from string to GeoPandas geometry

I have a dataframe stored as csv file, one column of which is Polygon object. However, this column is stored …

python polygon geopandas
in a wavefront object file (.obj) how am i supposed to render faces with more than 4 vertices in opengl?

So using a Wavefront object file how am i supposed to render faces that have more than 4 vertices in OpenGL? …

c++ opengl polygon wavefront
How to detect if polygons overlap in leaflet

I am using leaflet draw to create polygons. My requirement is when a user draws a polygon ,it should not …

polygon leaflet overlapping
Shading confidence intervals in R - base R if possible

I am comparing two lines that were regressed using LOESS. I want to display the confidence intervals of the two …

r statistics polygon confidence-interval loess
WKT: how do you define Polygons with 3 rings (==2 holes)?

I found in here this document. I read it but I keep wondering how to define a Polygon with 3 rings …

polygon wkt
How clip works in polygon union in Clipper library

I use clipper library. In the figure, red and black are clips and and green are polygons. The code is …

c# union polygon clipperlib
How to create thiessen polygons from points using R packages?

I have multiple sets of points (for different years ~20) I want to generate thiessen polygons for each set of points …

r geometry polygon spatial