WELCOME

I'm Dr. Andrew Marsh, a software developer who originally studied architecture, but whose driving passion is building performance analysis and simulation. This is a personal website that I use as an on-line notebook and platform for some of my experimental web-based apps, as well as various musings on building performance, web development, computer programming, generative design and 3D visualisation.

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Recent Blog Posts

Revitalising My Website

Giving my website a little love after 4 solid years of concentrating on my new BIM framework.
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Two New Christmas Apps

A couple of apps for procedural trees and polyhedra generation that I managed to finish over the Christmas break.
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Some New Solar Articles

Announcing some new solar articles written to support new API documentation.
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The Wonders of Duck Typing

The benefits of duck typing in JavaScript over strongly typed languages.
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The Profligacy of Immutability

How imposing immutability in library classes may solve some problems, but create others.
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Sky Distribution Equations

How the equations in ISO 15469:2004(E) and CIE S 011/E:2003 differ from the original Perez Sky equations.
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Architects and the R-Codes

The actual codes are great, but their implementation can sometimes put architects in a tricky situation.
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Recent Service Interruption

Information about some recent issues with our web hosting and why we were offline.
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New Schedule Editor

Introducing a new interactive tool for creating and editing annual hourly schedule data.
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Why Educational Tools

Justifying why I started with educational apps rather than more comprehensive analysis tools.
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Recent App Updates

Shape Script

An interactive web interface to the powerful OpenCascade geometry kernel.
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Polyhedra - 2.0

A significant update of this app with lots of extra features and my latest web framework.
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Polyhedra Generator

Create higher-order polyhedra by applying mathematical operators to base solids.
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Tree Generator

Interactively generate procedural 3D trees using abstract geometry or realistic trunks and foliage.
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Site Designer

An interactive editor for performing site shading, isolation and daylight analysis.
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Dynamic Daylighting

An updated daylight design tool with dynamic skies and climate-based daylight metrics.
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Psychrometric Chart

An interactive psychrometric chart with custom overlays for comfort and weather data analysis.
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CIE Sky Generator

A tool for experimenting with the CIE and Perez Sky equations and generating sky distributions.
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Schedule Editor

An interactive visual editor for annual operation schedules and daily profiles.
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Data View 2D

An interactive 2D charting tool for analysing EnergyPlus weather and output data.
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See all app updates...