PPolySim OS
Use case · powered by Map Projection

Map Projection for a GPS route

Simulate a GPS route live in your browser. This runs the real Map Projection solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

Map Projection DistortionLive

Controls

Presets

You cannot flatten a sphere without distortion. The Mercator projection preserves angles for navigation but inflates area toward the poles by 1/cos²(latitude) — so Greenland appears as big as Africa though it is 14 times smaller. The Tissot circles are all the same true size on the globe; watch them balloon at high latitudes.

▶ Run in Python

Data Inspector

Area distortion4.0×
Length distortion2.00×
Latitude60°

Governing equation

Reading this result: At 60° each Tissot circle covers about 4.0× its true area, because Mercator stretches by 1/cos²(latitude) as you move poleward.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

About this simulation

The full Map Projection tool models a GPS route 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 Map Projection

Other ways to simulate a GPS route

Frequently asked questions

How do I simulate a GPS route?
Open this page and use the live Map Projection 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 GPS route from your own measurements.