NKDBush 1.0.0

.NET Standard 2.0
Install-Package NKDBush -Version 1.0.0
dotnet add package NKDBush --version 1.0.0
<PackageReference Include="NKDBush" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add NKDBush --version 1.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: NKDBush, 1.0.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install NKDBush as a Cake Addin
#addin nuget:?package=NKDBush&version=1.0.0

// Install NKDBush as a Cake Tool
#tool nuget:?package=NKDBush&version=1.0.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

NKdbush

A static spatial index for 2D points based on a flat KD-tree for .Net ( ported direclty from the JS library kdbush ) :

  • points only — no rectangles
  • static — you can't add/remove items
var index = new KDBush<double[]>(pointsData, nodeSize: 10); // make an index
var ids1 = index.Range(20, 30, 50, 70);  // bbox search - minX, minY, maxX, maxY
var ids2 = index.Within(10, 10, 5);      // radius search - x, y, radius

API

KDBush(T[] points, Func<T, double> getX = null, Func<T, double> getY = null, int nodeSize = 64)

Creates an index from the given points.

  • points: Input array of points of type T.
  • getX, getY: Functions to get x and y from an input point. By default, it assumes [x, y] format.
  • nodeSize: Size of the KD-tree node, 64 by default. Higher means faster indexing but slower search, and vise versa.
var index = new KDBush<double[]>(pointsData, getX: p => p[0], getY: p => p[1], nodeSize: 64);
Range(double minX, double minY, double maxX, double maxY)

Finds all items within the given bounding box and returns a List<int> of indices that refer to the items in the original points input array.

var index = new KDBush<double[]>(points);
var results = index.Range(20, 30, 50, 70).Select(id => points[id]);
Within(double x, double y, double r)

Finds all items within a given radius from the query point and returns a List<int> of indices.

var index = new KDBush<double[]>(points);
var queryPoint = new double[] {50, 50};
var r = 20;
var results = index.Within(queryPoint[0], queryPoint[1], r);
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETStandard 2.0

    • No dependencies.

NuGet packages (1)

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Package Downloads
NGeoKDBush

Package Description

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Version Downloads Last updated
1.0.0 1,611 5/26/2018