Some crazy ideas from a high level perspective
As i'm a student and i should be busy with writing some papers ... i'm spending waaay to much time derping around having crazy ideas. since they are forgotten quickly most of the time, i thought i share them with you. this time: what D is missing for me i'm coming from the field of computer vision and computer graphics. algorithms used in that field often utilize some heavy maths. like solving some heavy least squares equation systems, or graph algorithms. because of that Matlab is often our tool of choice for quickly testing algorithms. After everything is running we translate things to c++. Idea1: a general interface to describe n-dimensional matrices i think the D syntax has the power to manipulate matrixes in a very expressive way. a great addition to the standard library would be to define a basic interface to work with matrices. mat2d = DenseMatrix!float(5,5); // create a 5x5 float matrix mat2d.zeros(); // initialize with zeros mat2d[0..$, 2:3] = 1; // slice the matrix and fill the slice with ones Specialized matrix types would then define the underlying memory layout and capabilities of a matrix. Like a matrix could be dense or sparse ( stored in the yale format or whatever other format ). depending on the needed operations the programmer would choose a fitting matrix implementation. This would not only be useful to solve math problems. But also to define for example adjacency matrices for graphs, or to store images. Idea2: Matrix Solvers Have some base algorithms to solve linear and quadtratic systems on top of those matrices. (LU, QR, ...) Idea3: Visualization Imho D is lacking a good UI toolkit. I again like here the simplicity of matlab that lets me just pop up a window, and show a simple diagram or picture. Often its not necessary to create a sophisticated UI, but having a visual representation of data often helps with debugging and understanding of algorithms. Some modern applications like Avast, Steam or Spotify create their user interfaces based on web technologies. Recently i've seen that somebody threw together a demo with libcef, which lets you use the chrome embedded framework, to basically have chrome in a little window. http://dblog.aldacron.net/2015/01/derelictcef-binding-to-chromium-embedded-framework/ http://imgur.com/pYlP3dE maybe that would be suitable to throw together a simple image viewer / diagram viewer. Based on some opensource web chart library ( like d3.js or whatever ) until now i didnt have yet the time and/or skill to realize those still very rough ideas. i hope you can give me some suggestions ... ... on what does already exist maybe in a similar form ... on what you would love to see to be realized of those ideas ... on why my ideas are garbage :'D destory pls cheers :)
Re: Some crazy ideas from a high level perspective
thanks for all the opinions! Perhaps this is what you're looking for? https://dlang.org/phobos/std_experimental_ndslice.html that would be a good starting point for a matrix library You would be interested in https://github.com/DlangScience They have cblas for matrix multiplication and scid.linalg has an interface to LAPACK (the > most common way to do LU/QR/etc). I don't have experience with these, but I think they were created before std.experimental.ndslice, so I'm not sure how well they inter-operate. I > believe there is work being done on this, but I'm sure John Colvin et al would appreciate > any help you would be able to provide. thx, havent found that before :) i haven't used lapack/blas before, i will have a look at it. i'm using mostly Eigen for my projects. If all you need are plotting tools, these would be useful https://code.dlang.org/packages/ggplotd https://code.dlang.org/packages/plotd that would be somewhat close already to matlab like plotting Sigh I do wish the author of gl3n had given permission for relicense for Phobos. Would do what you want. i have used gl3n before, it's not really what i'm looking for. gl3n afaik only provides up to 4x4 dense matrices, with the focus on being a GLM (http://glm.g-truc.net/0.9.7/index.html) replacement for the use with Opengl. correct me if i'm wrong. Cairo and Kheops look interesting. I have used Openvg before. Some time ago i've created a little Openvg D wrapper for shiva vg ( https://code.dlang.org/packages/dopenvg ) . From a diagram or image viewer i'd also expect some level of interactivity. That's why i thought a web app with CEF would be suitable do you have experience with creating web apps for desktop, or reasons why i'd definitively want to use a native framework for such a project? .. or for UI in general
Re: Is C++ trying to be like D?
On Saturday, 19 March 2016 at 13:46:14 UTC, Anonymouse wrote: On Saturday, 19 March 2016 at 13:23:55 UTC, Bauss wrote: Looking at C++14 and the proposed features for C++17 - https://en.wikipedia.org/wiki/C%2B%2B17 It looks a lot like C++ is trying to become similar to D. I believe that shows D's design pattern has been superior to C++'s from the start and there's no way C++ will ever be able to implement the same features of D in the same smooth and "user-friendly" behavior. What's your opinion? A much more common take on it is "why use D at all now that C++ is getting similar features", ignoring convenience. (I don't subscribe to it.) Just that awesome new features are planned, doesn't mean they get implemented. On of mine, and i think also of many other cpp programmsters, highly anticipated features are C++ Modules. We are waiting years already to get to a usable solution ... yet nothing has integrated into the cpp standard :3 D on the other hand has all those awesome features, and D has them now. Sometimes it's a little rough on the edges, but in general it's really great *.* I hope D will start to grow faster. And seeing it currently at Tiobe index rank 20 makes me hope that it will be way more widespread in future. <3 D ftw xD
Re: Some crazy ideas from a high level perspective
just found this ... http://forum.dlang.org/thread/nilhvnqbsgqhxdshp...@forum.dlang.org maybe that will be what i'm looking for :) as for the web ui's ... the performance is of course not perfect as in a native app. but i think apps like atom.io, visual studio code or discord show that it is perfectly possible to create apps with really good look, feel not too bad performance :)
