There is no AI-generated content on this web site. It is not currently very mobile friendly, it predates iPhones and other mobile devices for most of its content. I have recently fixed some display problems on cell phones, hopefully should help. Using the phone horizontally helps, as it gives more width. Maybe I can improve things further (with reasonable effort), but I'm not sure.

Main pages available here:

• All you ever wanted to know about temperaments
• UTM to Google maps interface
• Tool to transform coordinates (lat/lon, UTM, MGRS (Military Grid Reference System)) from older datums to the modern WGS84 datum. This page was done to learn about this aspect of geomatics.
• Portfolio photo (FR, EN, DE)
• Photos of the April 2024 total eclipse
• Roland Delisle, sculpteur/peintre
• A Mandelbrot set viewer (based on web assembly), and a short video showing a zoom into the set, followed by an illustration of the effect of the maxit parameter of the algorithm
• Lew's Picture (as oil painting)
• Blogs: MacOS color management, WPF DPI rant, File dropping in wxPython, Sepia toning algorithm
• My favicon (Δ) is the Greek letter Delta. This was chosen because my first significant personal project was a text editor (the story of led) that I used to make deltas to files.
• Why a .net domain? Simply because most of my career was in networking software (last 15 years on 3G UMTS cellular).

Email: (français, English, Deutsch).

Very short notes on myself.

I was born in the Montreal area in the years after WW II. I have a B.Sc. in physics, and an M.Sc. in computer science (it was still a new field back then!). I worked a few years at the Communications Research Centre (Shirleys Bay), then studied music a few years in Québec city where I met my future wife. We then spent seven years in Europe where I worked for Honeywell-Bull (Paris) and for CAP Gemini (D?sseldorf) while she completed her music studies. And we married in Cologne. On returning from Europe, we bought a house on the south shore of Montreal and I was hired by Nortel where I worked for the rest of my career, with my group being sold, when Nortel folded, to Alcatel-Lucent (later merged with Nokia), and then to HCL, an Indian consulting firm. I am now retired and we live near the sea, in the Rimouski area. I now program mostly in Python, almost daily, it helps to keep those neurons active! My interests (beyond computers) are mainly in photography (including image processing algorithms) and geography (coordinate systems, GPS, maps), and when I was younger, music temperaments.

My wife, Chantale, studied organ first with sœur Pauline (Rimouski), then with Antoine Bouchard (Québec city, U Laval), and then in Europe with Odile Bailleux (Paris) and finally with Almut R??ler (D?sseldorf) where she completed her Konzertexamen. On returning from Europe, she was organist in Varennes and did replacements in many other churches. She is also now retired. We have one son, Mathieu, who studied piano at the Montréal conservatory, economics and math at McGill, and economics at UofT.

We can be reached at the email address above.