<div dir="ltr"><div>A Database is better than the HDF5 approach?<br></div><div>HDF5 is designed to be a very fast file format for scientific data, kstars falls into that category.<br></div></div><div class="gmail_extra"><br>
<br><div class="gmail_quote">On Tue, Jan 28, 2014 at 7:03 AM, Vijay Dhameliya <span dir="ltr"><<a href="mailto:vijay.atwork13@gmail.com" target="_blank">vijay.atwork13@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi<div><br></div><div>Thank you very much Macro for giving clue of the way to do it. I agree with you that plan and diagram for workflow is must. I shall first plan and start preparing diagram of database structure for KStars. </div>
<div><br></div><div>I will soon prepare rough diagram of flow and share with you so you can give your suggestion and so on. And we can improve it to level best as KStars team give suggestions.</div><div><br>BTW I have good experience with development of Database Managment in Qt and I hope it will help us here :)</div>
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<div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jan 28, 2014 at 2:14 PM, Marco Calignano <span dir="ltr"><<a href="mailto:marco.calignano@gmail.com" target="_blank">marco.calignano@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">HI!<div><br></div><div>I also think a database is a better approach than a file base system. But you didn't address the first and biggest think to do. Before you can start coding you should really plan your database.</div>
<div>To create a database it is a real big work. You need to plan in advance even for feature are not at the horizon yet. If you plan it correctly you can then include localization as well. </div><div>I was thinking to jump on KStar to help, so maybe this is my cue. I will have to learn how the data are structured and I can help with the database development. But I would like to see some diagram here in the Kde-Edu list.</div>
<div>So that all the KStar team can also have a look and give their opinion.</div><div><br></div><div>Cheers</div><div>Marco</div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div>On Tue, Jan 28, 2014 at 4:39 AM, Alexander Wolf <span dir="ltr"><<a href="mailto:alex.v.wolf@gmail.com" target="_blank">alex.v.wolf@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr">Hi!<br><div class="gmail_extra"><br><div class="gmail_quote">2014-01-28 Vijay Dhameliya <span dir="ltr"><<a href="mailto:vijay.atwork13@gmail.com" target="_blank">vijay.atwork13@gmail.com</a>></span><div>
<div><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Currently when KStars is launched, it reads data corresponding to different Skyobject from respective file in loaddata() methods. And I have tracked out all the classes where we are loading data by reading file.
<div><br></div><div>I researched bit on the topic and I found that loading data from database is always much better option then doing same from file. </div><div><br></div><div>If we replace file system with QSql following are the Pros:</div>
<div><br></div><div>1) We will not have to ship so many files with Kstars</div><div>2) Loading from database is quicker than doing same from file</div><div>3) Code for load methods will be reduced in size</div><div><br></div>
<div>Cons:</div><div>1) I will have to move all data from files into database by temporary methods </div><div><br></div><div>So I am planning to start coding to replace file system by database on my local branch. </div><div>
<br></div><div>Can you please give your views and suggestion regarding the same ? I am sure that It will be very helpful to me. :)</div></div></blockquote><div><br></div></div></div><div>What about localization support for strings (like names of DSO) from those files?</div>
<div><br></div><div>--</div><div>With best regards, Alexander </div></div></div></div>
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