Point in Polygon for a solar-panel site
Simulate a solar-panel site live in your browser. This runs the real Point in Polygon solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.
Controls
Is a point inside a shape? The ray-casting algorithm shoots a ray from the point in any direction and counts how many polygon edges it crosses: an odd number means inside, an even number means outside. It is the math behind geofencing — triggering an alert when a phone or vehicle enters or leaves a region — and behind hit-testing in graphics. Drag the point, or click anywhere to move it there.
Data Inspector
Governing equation
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
About this simulation
The full Point in Polygon tool models a solar-panel site with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.
More you can do with Point in Polygon
Other ways to simulate a solar-panel site
Frequently asked questions
- How do I simulate a solar-panel site?
- Open this page and use the live Point in Polygon tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
- Is it free?
- Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
- Can I use my own numbers?
- Absolutely — every input is adjustable, and with data import you can drive a solar-panel site from your own measurements.