Mark,
>
> There must be some in Gerd’s area or his former student’s authoring
> space, but I can’t remember his student’s name.
>
J.T. Laverty is the name of Gerd's former student who worked on
functionplotresponse. J.T. is now at Kansas State; see:
www.phys.ksu.edu/people/tt-faculty/laverty.html
Stuart Raeburn
LON-CAPA Academic Consortium
________________________________________
From: LON-CAPA-users <lon-capa-users-boun...@mail.lon-capa.org> on behalf of
Lucas, Mark <luc...@ohio.edu>
Sent: Sunday, June 2, 2019 4:26 PM
To: Discussion list for LON-CAPA users
Subject: Re: [LON-CAPA-users] functionplotresponse problems
Hon-Kie,
There must be some in Gerd’s area or his former student’s authoring
space, but I can’t remember his student’s name.
Gerd has some function plotting (not vectors) in:
/res/msu/kortemey/physicsprecourse/graphing/
If you’re looking for really simple stuff, I’ve created a singlearrow set of
routines
that take a static imaged and allow you to resize and rotate the arrow, but not
drag
it. This was based off some code Wolfgang Bauer shared at the conference a few
years ago.
Here is one example:
/res/ohiou/physicslib/practice/09_Newtons_Laws/Book on the ceiling - normal
force.problem
Copied below is a free-body diagram for an incline that I think came from one
of Gerd’s sample problems:
————————
<problem>
<script type="loncapa/perl">$slope=&random(0.5,0.8,0.1);
$function="2+$slope*x";
$massx=&random(3.5,6.5,0.1);
$massy=2.1+$slope*$massx;
$angle=180.*atan($slope)/$pi;
$perp=$angle+90.;</script>
<startouttext />
A mass is sliding down the indicated incline with a constant velocity.
Construct the free body diagram, making sure the forces are approximately
proportionally correct. Leave unused vectors unattached.<br />
<i>You can use the red-colored vector sum tool to help you construct your
diagram; check the boxes for the vectors you want included in the sum. The tool
is just there to help you, its settings are not graded.</i>
<br />
<endouttext />
<functionplotresponse xaxisvisible="no" xlabel="x" gridvisible="yes" ylabel="y"
id="11" xmax="10" yaxisvisible="no" xmin="0" ymin="0" ymax="10" width="450"
height="450">
<functionplotelements>
<backgroundplot function="$function" fixed="yes" />
<plotobject label="Mass" x="$massx" y="$massy" />
<plotvector label="Gravity" tailx="7" taily="1" tipx="8" tipy="1" />
<plotvector label="KineticFriction" tailx="7" taily="2" tipx="8" tipy="2" />
<plotvector label="StaticFriction" tailx="7" taily="3" tipx="8" tipy="3" />
<plotvector label="NormalForce" tailx="7" taily="4" tipx="8" tipy="4" />
<drawvectorsum label="Sum" tailx="$massx" taily="$massy" showvalue="no"
vectorlist="Gravity,KineticFriction,StaticFriction,NormalForce" />
</functionplotelements>
<functionplotruleset>
<functionplotvectorrule index="Grav" vector="Gravity" attachpoint="Mass"
angle="270" angleerror="2" />
<functionplotvectorrule index="Norm" vector="NormalForce" attachpoint="Mass"
angle="$perp" angleerror="4" />
<functionplotvectorrule index="KFriction" vector="KineticFriction"
attachpoint="Mass" angle="$angle" angleerror="3" />
<functionplotvectorrule index="SFriction" vector="StaticFriction"
notattachpoint="Mass" />
<functionplotvectorsumrule vectors="Gravity,NormalForce,KineticFriction"
length="0" lengtherror="2" index="Total" />
</functionplotruleset>
<hintgroup showoncorrect="no">
<hintpart on="Grav">
<startouttext />Gravity acts on the mass and points straight
down.<endouttext />
</hintpart>
<hintpart on="SFriction">
<startouttext />The mass is sliding.<endouttext />
</hintpart>
<hintpart on="Total">
<startouttext />What should be the net force on the mass?<endouttext />
</hintpart>
<hintpart on="Norm">
<startouttext />What should be the direction of the normal
force?<endouttext />
</hintpart>
</hintgroup>
</functionplotresponse>
</problem>
—————————————
Hope this helps some,
Mark
> On Jun 1, 2019, at 12:10 PM, H. K. Ng <h...@fsu.edu> wrote:
>
> Good morning,
>
> I am looking for examples of functionplotresponse problems (one where a
> student can resize/drag a vector,..) Let me know if you don't mind sharing
> the source codes. Thanks.
>
> Regards,
> -hk
>
> _______________________________________________
> LON-CAPA-users mailing list
> LON-CAPA-users@mail.lon-capa.org
--
Mark Lucas email:
luc...@ohio.edu
252D Clippinger Lab phone:
(740)597-2984
Department of Physics and Astronomy fax: (740)593-0433
Ohio University
Athens, OH 45701
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