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 > https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmail.lon-capa.org%2Fmailman%2Flistinfo%2Flon-capa-users&data=02%7C01%7Clucasm%40ohio.edu%7C0c8f85d5f16e471e159208d6e6abd40b%7Cf3308007477c4a70888934611817c55a%7C0%7C0%7C636950023006970605&sdata=dZamISRsmhAYETwNovl0f5Gi1EW2LoMHt3cE1gVYpzI%3D&reserved=0 -- 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 _______________________________________________ LON-CAPA-users mailing list LON-CAPA-users@mail.lon-capa.org http://mail.lon-capa.org/mailman/listinfo/lon-capa-users