Chris Johnson's Software for RISC OS

The software available for download from this site is archived as zip files, and may be extracted using SparkPlug, Spark, or SparkFS.

If you do not have any of these, then a self-extracting version of SparkPlug may be downloaded.

This software is ONLY of use to users of RISC OS based computers - it will not run on Windows or MacOS machines (unless you are running e.g. RPCEmu).

To the best of my knowledge, all my own software is 26/32 bit compliant and will run under all variants of RISC OS 4 and RISC OS 5. Where indicated, the software has also been tested on the BeagleBoard (OMAP3 ARMv7 processor), IGEPv5, Titanium and Raspberry-Pi.

Recent updates

Snapper - Latest version 1.34, 13 May 2022
pH - Latest version 0.13, 15 March 2022
Energy - Latest version 2.02, 17 Feb 2022
TranJPEG - Latest version 1.36, 14 Jan 2022
DPlngScan - Latest version 1.33, 21 Dec 2021
ChartDraw - Latest version 3.54, 5 July 2021
CPUClock - Latest version 2.09, 24 Apr 2021

Graphing and charting

GraphDraw	GraphDraw allows the entry, and editing, of x,y values, and the data may then be fit to straight line, parabola, cubic spline, or polynomial. Latest version 3.03 (8 May 2019) More information and download

MultiPlot	MultiPlot allows the plotting of up to sixteen graphs on the same set of axes, from data files produced using e.g. GraphDraw, FnPlotter or CurveFit. You must have one of the applications mentioned to make use of MultiPlot. Latest version 3.02 (27 Jul 2019) More information and download

ChartDraw	ChartDraw allows the production of simple line graphs, stacked and grouped barcharts and piecharts. Latest version 3.54 (5th July 2021). More information and download

FnPlotter	FnPlotter allows you to enter up to four functions, y=f(x), in BASIC format, and will then produce a file in the correct format for loading into MultiPlot. Latest version 2.00, 25 Aug 2018 More information and download

Surface	A simple 3D function (surface) plotter. Latest version 2.00, 10 Dec 2015 More information and download

3DFNEdit	Produces data files in the correct format for Surface (above). Now included within the !Surface application. Latest version 1.10, 27 Nov 2015

Image related

ConvImgs	Allows the batch interconversion of various image filetypes, e.g. sprite, PNG, JPEG, TIFF, with the bonus that a number of simple transformations can be carried out at the same time. Latest version 1.12, (17 Oct 2020) More information and download

DPlngScan	A powerful bitmap image manipulation application, originally produced and marketed by David Pilling. This latest version is now available as a free download. Latest version 1.33, (21 Dec 2021) More information and download

TranJPEG	A WIMP frontend for the IJPG jpegtran command line utility. It allows easy access to the various lossless transformations provided with jpegtran, with batch processing of image files in the background. Latest version 1.36, (14 Jan 2022) More information and download

Snapper	A versatile screen capture program, allowing the capture of arbitrary screen areas, windows (with or without associated furniture) or the whole screen. Latest version 1.34, 13 May 2022 More information and download

SyncDiscs	A versatile program to manage the backup of directories or whole discs. Latest version 1.29, 2 Nov 2020 More information and download

CPUClock	A program to regulate the processor clock speed on hardware such as OMAP3, OMAP4, OMAP5, Titanium, Raspberry Pi. Will NOT run on earlier or emulated hardware. Latest version 2.09 (24 Apr 2021) More information and download

Text>Draw	A simple application to make it easier to enter complex text objects into draw. Latest version 1.33, 6 June 2019 More information and download

UnitConv	Converts between various units, generally SI and Imperial, but there are also some more specialised conversions. Latest version 2.37, (29 Jan 2019) More information and download

7bupstats	A simple little application that interfaces with the file/disc backup utility 7backup (by Steve Revill of 7th Software) and provides a small, continuously updated, status display for the progress of the backup. Latest version 0.37, (23 Dec 2011) More information and download

Chemistry software

A>B>C	A demonstration of the kinetics of series first order reactions. Latest version 2.00, 31st Oct 2006 More information and download

Energy	Demonstration of translational speed distributions and rotational energy level populations. Latest version 2.02, 17 Feb 2022 More information and download

IsoMass	Calculates from a chemical formula the abundance of each of the isotopic masses. Latest version 1.32, 7 Nov 2002 More information and download

MolWeight	Calculates from a molecular formula the molecular weight, the mass corresponding to a selected number of millimoles, and the percentage elemental composition. Latest version 1.33, 11 Nov 2002 More information and download

Periodic	Periodic table of the elements. Clicking on any element opens a window showing various properties of the selected element. Latest version 1.40, 4 Mar 2017 More information and download

pH	Displays pH curves for titration of mono-, di-, and tri-protic acids with a strong base. Latest version 0.13, 15 March 2022 More information and download

WaveFunc	Demonstration of the wave functions, (wave functions)², and overlap for the first ten vibrational levels of a harmonic oscillator. Latest version 1.11, 15 May 2011 More information and download

Third party software (upgraded or recompiled for BeagleBoard)

DrWimp library	A library, written in Basic, for writing Wimp based applications. Latest version 5.02 (1 Jan 2012) More information and download

jpegtran cjpeg djpeg	Binaries for processing and transforming jpegs, recompiled for the BeagleBoard More information and download

JCut	JCut is an application, originally by 'Dacha'. This version has had minor modifications to allow it to use the version 9 jpegtran binary. More information and download

Chris Johnson
This page last modified on 16th May 2022
Email:chrisjohnson@spamcop.net