Spatial navigation control
PanAndZoom
A precise, reusable viewport for diagrams, maps, editors, and infinite canvases.
Overview
A focused Avalonia control for smooth zoom-to-point, panning, constraints, animations, and programmable viewport navigation.
PanAndZoom concentrates the geometry and input details of an infinite-canvas viewport into one control. Pointer-centered zoom, constraints, animation, and programmable navigation remain independent from the content inside.
Pointer-centered zoom
Pan and viewport constraints
Animated navigation
Double-click zoom modes
Built for
Where it fits.
- Diagram and node editor authors
- Map, image, and document viewers
- Any Avalonia app with a large spatial surface
Compatibility & status
Supported
Supported
Supported
Platform dependent
In the work
Real output,
not a mockup.
Architecture
Clear layers.
Replaceable seams.
Model
Application state stays in portable domain objects and view models.
Control
Avalonia controls expose focused properties, commands, and events.
Theme
Templates and styles make the surface adaptable to each application.
Quick start
From package
to first frame.
Choose the package workflow used by your repository, then start from the smallest working example. Replace VERSION with the current stable or prerelease version shown on NuGet.
dotnet add package PanAndZoom --prerelease<PackageReference Include="PanAndZoom" Version="VERSION" /><PackageVersion Include="PanAndZoom" Version="VERSION" /><paz:ZoomBorder ZoomSpeed="1.2" MinZoom="0.1" MaxZoom="10"> <Canvas Width="2400" Height="1600" /></paz:ZoomBorder>Package surface
Start focused.
Compose as needed.
Source, docs, samples, and releases
The repository is the source of truth.
Use the current documentation and samples, inspect changes, report issues, or support continued open-source maintenance.