Chart.IT
A heat-load profile plotter in a single HTML file. Draw the 24-hour curve, edit the points, export the CSV.
01
The Curiosity
Load profiles get drawn in spreadsheets and pasted into reports. They are curves. They wanted a canvas.
02
The Build
One self-contained HTML file with its own charting code. Plot a heat-load profile over a day, drag and edit the points, and export the result as CSV for whatever comes next. It opens in its own window and has no dependencies to break.
03
The Result
A tool you can email to someone.
04
What We Learned
Some tools should be one file. Deployment, versioning and "does it still work" all become trivial when the whole thing fits in an attachment.