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+--- Thread: Mohr's Circle (/thread-2396.html)
Mohr's Circle - mop80087 - 11-06-2014 11:59 AM
Hi All,
Anyone has an idea to make a program to Mohr's Circle to HP PRIME?
Cumprimentos
Best regards/Mit freundlichen Grüßen
Diamantino
RE: Mohr's Circle - mop80087 - 11-07-2014 04:41 PM
Well, I don't want you to do the program but intend to collect opinions to do so. How to plot circles, etc.
RE: Mohr's Circle - Tim Wessman - 11-07-2014 04:44 PM
I think the geometry application has everything you need already in it. :-)
I would start by looking to make a construction in the geometry app. Once you have things working like you desire, you can add a screen to allow entry of specific numbers for calculations, reset things to default values, etc.
[EDIT]
[attachment=1194]
Here is an example to get you started. Using the connkit, just drag/drop that into your calc tree to load into the emulator or calc.
I have 3 numerical values declared in the appprogram. These are used in calculating the positions of things in the geometry screen. Take a look at the geometry num/plot/symb screens to see how you can start linking things together.
A small user UI prompt to ask for specific values would then pipe everything through and all your display/drawing is handled dynamically.
![[Image: mohrs.png]](http://s29.postimg.org/6bccmtxs7/mohrs.png)
RE: Mohr's Circle - Han - 11-07-2014 04:46 PM
The command you will likely want to use (in a program) is ARC() or ARC_P(). Using ARC_P() should enable you to draw circles using pixel coordinates and avoid having to worry about the window settings.
RE: Mohr's Circle - mop80087 - 11-07-2014 07:40 PM
Thank's Tim that was what I wanted, the correct starting point.
And thank's Han that's help.
RE: Mohr's Circle - mop80087 - 11-18-2014 02:01 PM
Hi,
MohrsCircle.zip (Size: 1.14 KB / Downloads: 24)
a lot of downloads and only Tim and Han replays, just a joke...
It's possible to lock de graphic area?
RE: Mohr's Circle - Tim Wessman - 11-18-2014 02:42 PM
It is not possible to lock specific elements at the moment. It is on the list of things to look at however.
RE: Mohr's Circle - mop80087 - 11-19-2014 11:38 AM
Thank's Tim and gracias Fredy.
That's what I was trying to improve, but with 3 circles Mohr 3D. No luck at the moment.
But stopped when I touched in the calculator and everything moves.
RE: Mohr's Circle - akmon - 11-19-2014 06:41 PM
(11-19-2014 01:10 AM)compsystems Wrote:
Interesting aplication. thank you for posting it.
Is it possible to share the program or command line to see how you resolved the editable variables? Thank you.
RE: Mohr's Circle - akmon - 11-19-2014 06:49 PM
(11-19-2014 11:38 AM)mop80087 Wrote: Thank's Tim and gracias Fredy.
That's what I was trying to improve, but with 3 circles Mohr 3D. No luck at the moment.
But stopped when I touched in the calculator and everything moves.
Wow, Mohr 3D would be impressive. There´s no background with this kind of program on any HP series. Even it´s difficult to find documentation.
RE: Mohr's Circle - Han - 11-19-2014 09:00 PM
(11-19-2014 06:49 PM)akmon Wrote:(11-19-2014 11:38 AM)mop80087 Wrote: Thank's Tim and gracias Fredy.
That's what I was trying to improve, but with 3 circles Mohr 3D. No luck at the moment.
But stopped when I touched in the calculator and everything moves.
Wow, Mohr 3D would be impressive. There´s no background with this kind of program on any HP series. Even it´s difficult to find documentation.
I'm not sure I understand what Mohr 3D would be. Is that Mohr's circle for 3-dimensional state of stress? (Wouldn't that still be a 2-dimensional diagram, but with 3 circles?)
RE: Mohr's Circle - akmon - 11-19-2014 09:58 PM
Exactly. It´s composed by 3 circles, the last one envolves the other two. The área between the big circle and the 2 smaller is the domain of any stress situation of the solid.
RE: Mohr's Circle - Mic - 11-20-2014 05:48 AM
Nice job