Re: Wolfram language
Message: 3 Date: Wed, 26 Feb 2014 09:35:12 -0800 From: Richard Gaskin ambassa...@fourthworld.com To: use-livecode@lists.runrev.com Subject: Re: Wolfram language Message-ID: 530e25d0.5030...@fourthworld.com Content-Type: text/plain; charset=windows-1252; format=flowed Jim Hurley wrote: And, Richard, as a petty aside, that formula and graph in the forum you cite don?t ?compute.? Not petty at all. It's just one more reason we love having you in this community: you help keep our math straight. But there is another significant difference between LC and what one might achieve in the new Wolfram-enabled LC. One cannot plot a truly smooth curve in LC. The curve is always a set of line segments joining a set of discrete points. It is similar to the difference between bit map and vector graphics. Hopefully that can change now that LiveCode uses the Skia library for its graphics primitives. If memory serves Skia supports Beziers - could those be used for what you're looking for? Richard, Thank you. I'm afraid I really haven't been keeping up. Could you, or any one, provide me with an example that shows how to use the Skia library? Here is an example that illustrates what I mean when I say that LC cannot plot a smooth curve. It will *plot* a circle and also place a circle of equal size next it using LC's graphic tools. They are close, but the plot shows the pixillation no matter how many points one choose for the plot. Just put this into a button script. on mouseUp if there is no grc circle then create grc Circle set the style of grc circle to polygon set the points of grc circle to put 200 into R put R+10 into x0 put the height of this card / 2 into y0 answer By what fraction of a degree between steps would you choose? with 1 or 2 or 3 or 4 put it into tFraction --Draw the circle repeat with Ang = 0 to 360*tFraction put R* cos(ang*PI/180/tFraction) into x put R * sin(Ang*PI/180/tFraction) into y put Round(x0 + x), Round(y0+y) cr after tPoints end repeat set the points of grc Circle to tPoints --Show the oval if there is not grc oval then create grc oval set the style of grc oval to oval set the width of grc oval to 2*R set the height of grc oval to 2*R set the loc of grc Oval to x0 +2* R + 10, y0 end if end mouseUp -- Richard Gaskin Fourth World Systems Software Design and Development for the Desktop, Mobile, and the Web ambassa...@fourthworld.comhttp://www.FourthWorld.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
Jim Hurley wrote: Could you, or any one, provide me with an example that shows how to use the Skia library? Skia is a 2d library, used in LiveCode to replace the older internal subsystem used for drawing. The good news is that we don't have to do anything to use Skia: it's already there, working every time you render anything to the screen. RunRev did such a good job dropping it in that most people didn't notice any change at all. The bad news is that we *can't* (currently) do anything with it from scripting: if you want to use additional capabilities not currently supported by the LiveCode language, those would need to be submitted as feature requests. But the good thing about Skia is that many such feature requests are now easier for the team to implement than before, since they can rely on the capabilities of a library that has many times more developers working on it than any small company could afford. For example, SVG is handled by Skia, so conceivably we could see SVG import and export added to LC. And along with that, since SVG supports Beziers, we'll hopefully see that too. Those types of additions to LiveCode are probably not as high on the priority list as the published Kickstarter goals, but achievable with Skia once the other priorities are done. And of course anyone in the community with sufficient time and skills could add those capabilities and submit a pull request to have them added to the main engine build. More info on Skia: https://sites.google.com/site/skiadocs/roadmap -- Richard Gaskin Fourth World LiveCode training and consulting: http://www.fourthworld.com Webzine for LiveCode developers: http://www.LiveCodeJournal.com Follow me on Twitter: http://twitter.com/FourthWorldSys ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
On Thu, Feb 27, 2014 at 10:16 AM, Richard Gaskin ambassa...@fourthworld.com wrote: For example, SVG is handled by Skia, so conceivably we could see SVG import and export added to LC. And along with that, since SVG supports Beziers, we'll hopefully see that too. Those types of additions to LiveCode are probably not as high on the priority list as the published Kickstarter goals, but achievable with Skia once the other priorities are done. Richard, Good news - Vector Shape Object is one of the published Kickstart goals. The description is: The new vector shape object will provide rich vector support, use of SVG and sub pixel drawing accuracy. -- Trevor DeVore Blue Mango Learning Systems www.screensteps.com-www.clarify-it.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
Trevor DeVore wrote: Good news - Vector Shape Object is one of the published Kickstart goals. The description is: The new vector shape object will provide rich vector support, use of SVG and sub pixel drawing accuracy. As one of the items in Queued, below the top three strands, I'm looking forward to it but don't expect to see it very soon. I'd love to be wrong, but I'd love even more to see SFTP and the updated player object first. It seems hopeful, though, given that Cocoa is also listed under Queued, but has been the focus of a great deal of effort recently. Fingers crossed - I want it all by next Tuesday. :) -- Richard Gaskin Fourth World LiveCode training and consulting: http://www.fourthworld.com Webzine for LiveCode developers: http://www.LiveCodeJournal.com Follow me on Twitter: http://twitter.com/FourthWorldSys ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
Message: 29 Date: Tue, 25 Feb 2014 20:22:48 -0800 From: Richard Gaskin ambassa...@fourthworld.com To: use-livecode@lists.runrev.com Subject: Re: Wolfram language Message-ID: 530d6c18.3080...@fourthworld.com Content-Type: text/plain; charset=ISO-8859-1; format=flowed Did you see what [-hh] cooked up in the forums? http://forums.runrev.com/viewtopic.php?f=76t=19132 Richard et. al. Adding Mathematica and/or Wolfram to LC would be a sea chance. Mathematica is already causing profound changes in educating theoretical physicists. I remember countless hours solving differential equation, complex integrals, differential geometry and the whole arena of analytical mathematics. Trouble is I loved it, and I would have missed it. I loved every bit of mathematics, the same way so many of you love programing. It is difficult to know what to include in the curriculum now. It’s not the same as adding hand held calculators to students of arithmetic. Should we teach students how to take square roots. I certainly can’t remember how. Should we teach them how so solve differential equations? It is surely true that providing these preprogramed solutions in Mathematica makes it possible to expand one’s imagination to whole new areas that were previously inaccessible. And that is a profound change. But there is always the nagging feeling that without the underlying capability to do the math, you will eventually run into a problem that Wolfram hasn’t though of. And, Richard, as a petty aside, that formula and graph in the forum you cite don’t “compute.” The formula is y = 3* sin(x+pi*J) where J runs from 0 to 4 and x from -3 to +3. But adding 2* pi, or 4*pi is the same as 0*pi. In the same way 1*pi and 3*pi give the same results. So there are really only 2 distinct curves, not the 5 shown. But I’m sure the author was plotting a different formula than the one shown. And, by the way, that same problem is easy dealt with in, you guessed it, Turtle Graphics: on mouseUp put 40 into scale startTurtle clean repeat with J = 0 to 4 put -3 into x pen up setXY x*scale, scale * 3* sin(x+pi*J) penDown repeat until x 3 setXY x*scale, Scale * 3* sin(x+pi*J) add .1 to x end repeat end repeat choose the browse tool end mouseUp But there is another significant difference between LC and what one might achieve in the new Wolfram-enabled LC. One cannot plot a truly smooth curve in LC. The curve is always a set of line segments joining a set of discrete points. It is similar to the difference between bit map and vector graphics. (I wonder whether Wolfram will provide the ability to show the *evolving* curve as one can in LC?) I will have to leave that brave and bold new world to all you young Turks now. Have fun. I’m 82, retired, and my mind doesn’t work as well as it used to. But I”m still having lots of fun in the old world. Jim -- Richard Gaskin Fourth World Systems Software Design and Development for Desktop, Mobile, and Web ambassa...@fourthworld.com http://www.FourthWorld.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
Jim Hurley wrote: And, Richard, as a petty aside, that formula and graph in the forum you cite don’t “compute.” Not petty at all. It's just one more reason we love having you in this community: you help keep our math straight. But there is another significant difference between LC and what one might achieve in the new Wolfram-enabled LC. One cannot plot a truly smooth curve in LC. The curve is always a set of line segments joining a set of discrete points. It is similar to the difference between bit map and vector graphics. Hopefully that can change now that LiveCode uses the Skia library for its graphics primitives. If memory serves Skia supports Beziers - could those be used for what you're looking for? -- Richard Gaskin Fourth World Systems Software Design and Development for the Desktop, Mobile, and the Web ambassa...@fourthworld.comhttp://www.FourthWorld.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
How awesome would it be if we had at least some of these commands in Livecode: http://reference.wolfram.com/language/guide/MachineLearning.html http://reference.wolfram.com/language/guide/ImageProcessing.html There is a *FindFaces* function for God’s sake :)) One day, hopefully… ~ Ender From: Mark Wieder Mark Wieder Reply: Mark Wieder mwie...@ahsoftware.net Date: February 26, 2014 at 0:08:45 To: use-livecode@lists.runrev.com use-livecode@lists.runrev.com Subject: Wolfram language Looks like the soon-to-be-released Wolfram language will be part of the upcoming Raspberry Pi OS: http://venturebeat.com/2014/02/24/knowledge-based-programming-wolfram-releases-first-demo-of-new-language-30-years-in-the-making/ -- Mark Wieder ahsoftw...@gmail.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
Wow! This seems truly to be shift in paradigm. Even with the Open Language we will be very busy catching up J Mats ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
On Wed, Feb 26, 2014 at 9:57 AM, Mats Wilstrand mats.wilstr...@tapirsoft.com wrote: Wow! This seems truly to be shift in paradigm. Even with the Open Language we will be very busy catching up J Maybe a function similar to shell, but for wolfram: put wolfram(predict:number of LiveCode users by 2015) into tVeryLargeNumber ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Wolfram language
Did you see what [-hh] cooked up in the forums? http://forums.runrev.com/viewtopic.php?f=76t=19132 -- Richard Gaskin Fourth World Systems Software Design and Development for Desktop, Mobile, and Web ambassa...@fourthworld.com http://www.FourthWorld.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
