Graphing and charting
  Graphdraw
  MultiPlot
  ChartDraw
  FNPlotter
  Surface
  3DFNEdit

Image related
  ConvImgs
  DPlngScan
  TranJPEG

Audio related
  ID3TagEd

Utilities
  Snapper
  SyncDiscs
  CPUClock
  Text>Draw
  UnitConv
  7bupstats

Chemistry software
  A>B>C
  Energy
  IsoMass
  MolWeight
  Periodic
  pH
  WaveFunc

Third party software (upgraded or recompiled for BeagleBoard)
  Calibre
  meDDLe
  DrWimp library
  jpegtran
  cjpeg
  djpeg
  JCut
  GIGO


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Chris Johnson's Software for RISC OS

Soft Centre
The software available for download on this site is archived using David Pilling's SparkFS, 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), and Raspberry-Pi.

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 3.02 (12 Mar 2017)
More information and download
armv7ok.png - 1014 bytes

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 2.24 (20 May 2006)
More information and download
armv7ok.png - 1014 bytes

ChartDraw

ChartDraw allows the production of simple line graphs, stacked and grouped barcharts and piecharts.
Latest version 3.52 (May 2014).
More information and download
armv7ok.png - 1014 bytes

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 1.03, 14 May 1996
More information and download
armv7ok.png - 1014 bytes

Surface

A simple 3D function (surface) plotter.
Latest version 2.00, 10 Dec 2015
More information and download
armv7ok.png - 1014 bytes

3DFNEdit

Produces data files in the correct format for Surface (above). Now included within the !Surface application.
Latest version 1.10, 27 Nov 2015
armv7ok.png - 1014 bytes

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 1.11, (29 Jan 2017)
More information and download
armv7ok.png - 1014 bytes

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 1.28, (10 Jun 2017)
More information and download
armv7ok.png - 1014 bytes

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 1.33, (25 Sept 2016)
More information and download
armv7ok.png - 1014 bytes

Audio related

ID3TagEd

An application to allow the creation and/or editing of MP3 ID3 version 1 tags, and a range of frames of the ID3 version 2 tags.
Latest version 0.52, (8 Jun 2017)
More information and download
armv7ok.png - 1014 bytes

Utilities

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 1.31, 3 May 2016
More information and download
armv7ok.png - 1014 bytes

SyncDiscs

A versatile program to manage the backup of directories or whole discs.
Latest version 1.28, 22 Dec 2014
More information and download
armv7ok.png - 1014 bytes

CPUClock

A program to regulate the processor clock speed on hardware such as OMAP3, OMAP4, OMAP5. Will NOT run on earlier hardware.
Latest version 2.02, 21 Aug 2017
More information and download
armv7ok.png - 1014 bytes

Text>Draw

A simple application to make it easier to enter complex text objects into draw.
Latest version 1.32, 24 Sept 2016
More information and download
armv7ok.png - 1014 bytes

UnitConv

Converts between various units, generally SI and Imperial, but there are also some more specialised conversions.
Latest version 2.36, (21 Feb 2017)
More information and download
armv7ok.png - 1014 bytes

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
armv7ok.png - 1014 bytes

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 1.10, 7 Jan 2003
More information and download
armv7ok.png - 1014 bytes

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
armv7ok.png - 1014 bytes

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
armv7ok.png - 1014 bytes

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
armv7ok.png - 1014 bytes

pH

Displays pH curves for titration of mono-, di-, and tri-protic acids with a strong base.
Latest version 0.11, 19 May 2011
More information and download
armv7ok.png - 1014 bytes

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
armv7ok.png - 1014 bytes

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
armv7ok.png - 1014 bytes

jpegtran
cjpeg
djpeg

Binaries for processing and transforming jpegs, recompiled for the BeagleBoard
More information and download
armv7ok.png - 1014 bytes

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
armv7ok.png - 1014 bytes

GIGO

GIGO is a desktop dustbin application, originally by Rick Hudson.
Recompiled to run on BeagleBoard, PandaBoard and Raspberry Pi.
Latest version 1.05.1 (8 Jun 2014).
More information and download
armv7ok.png - 1014 bytes
Chris Johnson
This page last modified on 29th August 2017
Email:chrisjohnson@spamcop.net