Updates to the main portions of the HowToCreate site - this does not include emails or the Opera section (the Opera section has its own feed) http://www.howtocreate.co.uk/ daily 1 Added a script that simulates guitar sounds dynamically using the Web Audio API, controlled entirely from JavaScript. http://www.howtocreate.co.uk/jslibs/script-guitarsynth Sun, 19 Apr 2026 08:00:00 +0000 69 Added a utility script that shows the possible values obtained by rolling several dice at once, and how many combinations can produce that value. http://www.howtocreate.co.uk/jslibs/script-dicestats Tue, 31 Oct 2023 16:50:00 +0000 68 Corrected handling of hour ranges when xType option is set to 'datetime' or 'datetimeutc'. http://www.howtocreate.co.uk/jslibs/script-linechart Mon, 03 Apr 2023 11:05:00 +0000 67 Added ySecondConverted and workingCanvas information, corrected converted values, and improved performance with tooltips. http://www.howtocreate.co.uk/jslibs/script-linechart Mon, 12 Sep 2022 19:45:00 +0000 66 Added ySecondConverter option, corrected weekStartDay, and corrected date handling. http://www.howtocreate.co.uk/jslibs/script-linechart Sun, 02 Sep 2022 20:16:00 +0000 65 Allowed 'auto0' options to work, and avoided clipping lines. http://www.howtocreate.co.uk/jslibs/script-linechart Sun, 29 Aug 2022 22:33:00 +0000 64 Avoided a floating point error in axis labels. http://www.howtocreate.co.uk/jslibs/script-linechart Sun, 28 Aug 2022 22:00:00 +0000 63 Added a utility that takes a set of static location fix data from GPSTest 4.0+, or csv files containing the same columns, and calculates the resulting point using basic averaging and Kalman filtering. It can also use log files created by Google's GnssLogger and older versions of GPSTest, but these truncate the location data to low resolution, and are not recommended. http://www.howtocreate.co.uk/jslibs/script-gridrefutils Fri, 26 Aug 2022 13:15:01 +0000 62 Added a script that draws scatter charts and line charts using HTML Canvas - configurable and stylable using a detailed set of options. http://www.howtocreate.co.uk/jslibs/script-linechart Fri, 26 Aug 2022 13:15:00 +0000 61 Allowed batching to work correctly in both scripts. http://www.howtocreate.co.uk/php/ Thu, 02 Aug 2021 09:15:00 +0000 60 Added a parser for the OSTN15 and OSGM15 data file created by Ordnance Survey, that can then be used to put it into a database (such as an SQL database). (Oops. This was supposed to have been released last December, but it got overlooked.) http://www.howtocreate.co.uk/php/ Wed, 01 Aug 2021 10:00:00 +0000 59 Added a tool that converts between GPS coordinates (WGS84 or ETRS89) and British grid references using continental drift tools, OSTN15 and OSGM15. http://www.howtocreate.co.uk/php/gpstogrid.php Wed, 23 Dec 2020 14:10:00 +0000 58 Huge update! Added support for Cartesian ellipsoid coordinates, grid shifting systems (OSTN15), .grd-based geoids, Irish polynomial transformations, geodesics, more precise coordinates, truncated grid references, and more input formats. Fixed a few bugs. Refactored a lot of code. Added a very extensive testsuite to make sure it all works correctly, and to avoid breaking stuff when making changes. http://www.howtocreate.co.uk/jslibs/script-gridrefutils Wed, 23 Dec 2020 08:00:02 +0000 57 Huge update! Added support for Cartesian ellipsoid coordinates, grid shifting systems (OSTN15), .grd-based geoids, Irish polynomial transformations, geodesics, more precise coordinates, truncated grid references, and more input formats. Fixed a few bugs. Refactored a lot of code. Added a very extensive testsuite to make sure it all works correctly, and to avoid breaking stuff when making changes. http://www.howtocreate.co.uk/php/ Wed, 23 Dec 2020 08:00:01 +0000 56 Added a parser for geoid .grd files, that either renders them with a variety of visualisation options, or allows you to store the results in a database. http://www.howtocreate.co.uk/php/ Wed, 23 Dec 2020 08:00:00 +0000 55 Fixed a bug that could cause the slideshow to jump in Opera (removed a bug workaround that is no longer needed). http://www.howtocreate.co.uk/jslibs/script-galleryslideshow Thu, 5 Apr 2012 10:35:00 +0000 54 Added a short article detailing the changes in IE 9. http://www.howtocreate.co.uk/ie9.html Sat, 19 Mar 2011 09:15:02 +0000 53 Updated Internet Explorer notes, particularly those relating to script support. http://www.howtocreate.co.uk/ Sat, 19 Mar 2011 09:15:01 +0000 52 Added notes for all of the additions in IE 9, in particular the DOM support. http://www.howtocreate.co.uk/tutorials/javascript/important Sat, 19 Mar 2011 09:15:00 +0000 51 Cleared a publishing backlog of 8 months worth of email. http://www.howtocreate.co.uk/emails/ Mon, 7 June 2010 18:55:00 +0000 50 Added ddFormat, to allow production of more coordinate formats used by GPS software. http://www.howtocreate.co.uk/jslibs/script-gridrefutils Sun, 9 May 2010 20:55:01 +0000 49 Added dd_format, to allow production of more coordinate formats used by GPS software. http://www.howtocreate.co.uk/php/ Sun, 9 May 2010 20:55:00 +0000 48 Added a JavaScript version of the script, to allow client-side conversion between different NGR formats latitude/longitude formats. http://www.howtocreate.co.uk/jslibs/script-gridrefutils Thu, 6 May 2010 21:30:01 +0000 47 Added support for ITM, UTM and UPS grid references, allowed conversion from other grid systems, returning strings as well as HTML, and included several bug fixes. http://www.howtocreate.co.uk/php/ Thu, 6 May 2010 21:30:00 +0000 46 Added details of how to produce static methods and properties, and singletons. http://www.howtocreate.co.uk/tutorials/javascript/objects#advobj Wed, 21 Apr 2010 16:40:00 +0000 45 Added a script that provides functions to convert between different NGR formats (primarily those used in the British Isles) and latitude/longitude formats. http://www.howtocreate.co.uk/php/ Sat, 10 Apr 2010 22:35:00 +0000 44 Added an option to sort tables using a custom sort function. http://www.howtocreate.co.uk/jslibs/script-tablesort Thu, 25 Mar 2010 18:40:00 +0000 43 Fixed a regression introduced in the recent major 2.0 update where captions could become too wide with wide images, and scrolling is now correctly reset for non-default layouts when changing images. http://www.howtocreate.co.uk/jslibs/script-galleryslideshow Thu, 12 Nov 2009 19:45:00 +0000 42 Major update with many new features, including shrink-to-fit, transitions, loop control, thumbnail positioning and DHTML scrolling, embedding and many more. http://www.howtocreate.co.uk/jslibs/script-galleryslideshow Fri, 6 Nov 2009 18:00:00 +0000 41 Added details of how the script interpreter treats lines of code that do not end with a semicolon. http://www.howtocreate.co.uk/tutorials/javascript/semicolons Wed, 23 Sep 2009 20:00:00 +0000 40 Cleared a publishing backlog of 4 months worth of email - sorry for the delay. http://www.howtocreate.co.uk/emails/ Sat, 25 Apr 2009 21:40:00 +0000 39 Updated all tutorial compatibility notes for IE 8 final, and preview releases of Opera 10 and Safari 4. http://www.howtocreate.co.uk/ Sun, 19 Apr 2009 20:35:00 +0000 38 Keyboard shortcuts can now be defined for controlling the slideshow. http://www.howtocreate.co.uk/jslibs/script-galleryslideshow Tue, 24 Mar 2009 21:35:00 +0000 37 'Previous' and 'next' images can now be pre-cached (also fixed regular cache so it no longer produces 404 errors). http://www.howtocreate.co.uk/jslibs/script-galleryslideshow Wed, 18 Mar 2009 12:25:00 +0000 36