--- loncom/homework/functionplotresponse.pm 2010/11/07 13:15:28 1.28 +++ loncom/homework/functionplotresponse.pm 2010/11/13 22:30:28 1.38 @@ -1,7 +1,7 @@ # LearningOnline Network with CAPA # option list style responses # -# $Id: functionplotresponse.pm,v 1.28 2010/11/07 13:15:28 www Exp $ +# $Id: functionplotresponse.pm,v 1.38 2010/11/13 22:30:28 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -31,9 +31,11 @@ use strict; use Apache::response(); use Apache::lonlocal; use Apache::lonnet; - + BEGIN { - &Apache::lonxml::register('Apache::functionplotresponse',('functionplotresponse','backgroundplot','spline','functionplotrule')); + &Apache::lonxml::register('Apache::functionplotresponse',('functionplotresponse','backgroundplot','spline', + 'functionplotrule','functionplotruleset', + 'functionplotelements')); } # @@ -376,7 +378,7 @@ sub start_functionplotrule { &Apache::lonxml::warning(&mt('Rule relationship not defined.')); $relationship='eq'; } - my $derivative=&Apache::lonxml::get_param('derivative',$parstack,$safeeval); + my $derivative=&Apache::lonxml::get_param('derivativeorder',$parstack,$safeeval); unless (($derivative==0) || ($derivative==1) || ($derivative==2)) { &Apache::lonxml::warning(&mt('Rule derivative not defined.')); $derivative=0; @@ -388,12 +390,52 @@ sub start_functionplotrule { $beginninglabel, &Apache::lonxml::get_param('xfinal',$parstack,$safeeval), $endinglabel, + &Apache::lonxml::get_param('minimumlength',$parstack,$safeeval), + &Apache::lonxml::get_param('maximumlength',$parstack,$safeeval), $relationship, - &Apache::lonxml::get_param('value',$parstack,$safeeval) + &Apache::lonxml::get_param('value',$parstack,$safeeval), + &Apache::lonxml::get_param('percenterror',$parstack,$safeeval) ))); } elsif ($target eq 'edit') { - $result=&Apache::edit::tag_start($target,$token,'Function Plot Evaluation Rule'). - &Apache::edit::end_row(); + $result=&Apache::edit::tag_start($target,$token,'Function Plot Evaluation Rule'). + &Apache::edit::text_arg('Index/Name:','index', + $token,'10').' '. + &Apache::edit::select_arg(&mt('Function:'),'derivativeorder', + [['0','Function itself'], + ['1','First derivative'], + ['2','Second derivative']],$token).'
'. + &Apache::edit::text_arg('(Initial) x-value:','xinitial', + $token,'8'). + &Apache::edit::select_or_text_arg('(Initial) x-value label:','xinitiallabel', + [['start','Start of Plot']],$token,'8').'
'. + + &Apache::edit::text_arg('Optional final x-value for ranges:','xfinal', + $token,'8'). + &Apache::edit::select_or_text_arg('Optional final x-value label:','xfinallabel', + [['end','End of Plot']],$token,'8').'
'. + &Apache::edit::text_arg('Optional minimum length for range:','minimumlength', + $token,'8'). + &Apache::edit::text_arg('Optional maximum length for range:','maximumlength', + $token,'8').'
'. + &Apache::edit::select_or_text_arg(&mt('Relationship:'),'relationship', + [['eq','equal'], + ['ne','not equal'], + ['ge','greater than or equal'], + ['gt','greater than'], + ['lt','less than'], + ['le','less than or equal']],$token). + $result.= &Apache::edit::select_or_text_arg('Value:','value', + [['undef','not defined']],$token,'8'). + &Apache::edit::text_arg('Percent error:','percenterror', + $token,'8'). + &Apache::edit::end_row(); + } elsif ($target eq 'modified') { + my $constructtag=&Apache::edit::get_new_args($token,$parstack, + $safeeval,'index','derivativeorder', + 'xinitial','xinitiallabel','xfinal','xfinallabel', + 'minimumlength','maximumlength', + 'relationship','value','percenterror'); + if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); } } return $result; } @@ -553,7 +595,11 @@ sub d2dt2_cubic_hermite { # sub array_index { my ($xmin,$xmax,$x)=@_; - return int(($x-$xmin)/($xmax-$xmin)*400.+0.5); + if ($x ne '') { + return int(($x-$xmin)/($xmax-$xmin)*400.+0.5); + } else { + return undef; + } } # @@ -563,6 +609,7 @@ sub array_index { sub populate_arrays { my ($id,$xmin,$xmax)=@_; for (my $i=0; $i<=400; $i++) { + $Apache::functionplotresponse::actualxval[$i]=undef; $Apache::functionplotresponse::func[$i]=undef; $Apache::functionplotresponse::dfuncdx[$i]=undef; $Apache::functionplotresponse::d2funcd2x[$i]=undef; @@ -584,26 +631,33 @@ sub populate_arrays { $env{'form.HWVAL_'.$id.'_'.$label.'S'.$ni.'_y'}); # Run in small steps over spline parameter for (my $t=0; $t<=1; $t+=0.0001) { - my $xi=&array_index($xmin,$xmax,&cubic_hermite($t,@xparms)); + my $xreal=&cubic_hermite($t,@xparms); + my $xi=&array_index($xmin,$xmax,$xreal); if ($xi<$xiold) { return 'no_func'; } if (($xi>$xiold) && ($xi>=0) && ($xi<=400)) { if (defined($Apache::functionplotresponse::func[$xi])) { return 'no_func'; } $xiold=$xi; + $Apache::functionplotresponse::actualxval[$xi]=$xreal; # Function value - $Apache::functionplotresponse::func[$xi]=&cubic_hermite($t,@yparms); + my $funcval=&cubic_hermite($t,@yparms); + $Apache::functionplotresponse::func[$xi]=$funcval; + if (defined($funcval)) { + if ($xi<$Apache::functionplotresponse::functionplotrulelabels{'start'}) { + $Apache::functionplotresponse::functionplotrulelabels{'start'}=$xi; + } + if ($xi>$Apache::functionplotresponse::functionplotrulelabels{'end'}) { + $Apache::functionplotresponse::functionplotrulelabels{'end'}=$xi; + } + } # Chain rule # dy/dx=dy/dt/(dx/dt) my $dxdt=&ddt_cubic_hermite($t,@xparms); if ($dxdt) { $Apache::functionplotresponse::dfuncdx[$xi]=&ddt_cubic_hermite($t,@yparms)/$dxdt; - } -# Faa di Bruno -# d^2y/dx^2=(d^2y/dt^2)/(dx/dt)^2+(dy/dt)/(d^2x/dt^2) - my $d2xdt2=&d2dt2_cubic_hermite($t,@xparms); - if (($dxdt) && ($d2xdt2)) { +# Second derivative $Apache::functionplotresponse::d2funcdx2[$xi]= - &d2dt2_cubic_hermite($t,@yparms)/($dxdt*$dxdt) - +&ddt_cubic_hermite($t,@yparms)/$d2xdt2; + ($dxdt*&d2dt2_cubic_hermite($t,@yparms)-&ddt_cubic_hermite($t,@yparms)*&d2dt2_cubic_hermite($t,@xparms))/ + ($dxdt*$dxdt*$dxdt); } } } @@ -612,7 +666,7 @@ sub populate_arrays { } # -# Implentation of +# Implementation of # sub start_functionplotresponse { @@ -630,6 +684,12 @@ sub start_functionplotresponse { $Apache::functionplotresponse::counter=0; # Remember rules undef @Apache::functionplotresponse::functionplotrules; +# Remember failed rules + if ($target eq 'grade') { + undef @Apache::functionplotresponse::failedrules; + } +# Delete previous awards + undef $Apache::functionplotresponse::awarddetail; # Part and ID my $partid=$Apache::inputtags::part; my $id=&Apache::response::start_response($parstack,$safeeval); @@ -664,7 +724,8 @@ sub start_functionplotresponse { $result.=&Apache::edit::start_table($token) .''.&mt('Function Plot Question').'' .''.&mt('Delete?').' ' - .&Apache::edit::deletelist($target,$token) + .&Apache::edit::deletelist($target,$token).'   ' + .&Apache::edit::insertlist($target,$token) .'' ." " .&Apache::edit::end_row() @@ -677,7 +738,7 @@ sub start_functionplotresponse { &Apache::edit::text_arg('Maximum x-value:','xmax', $token,'4').' '. &Apache::edit::select_arg('x-axis visible:','xaxisvisible', - ['yes','no'],$token).'  '. + ['yes','no'],$token).'
'. &Apache::edit::text_arg('Label y-axis:','ylabel', $token,'6').' '. &Apache::edit::text_arg('Minimum y-value:','ymin', @@ -685,7 +746,7 @@ sub start_functionplotresponse { &Apache::edit::text_arg('Maximum y-value:','ymax', $token,'4').' '. &Apache::edit::select_arg('y-axis visible:','yaxisvisible', - ['yes','no'],$token).'  '. + ['yes','no'],$token).'
'. &Apache::edit::select_arg('Grid visible:','gridvisible', ['yes','no'],$token). &Apache::edit::end_row().&Apache::edit::start_spanning_row(); @@ -697,26 +758,39 @@ sub start_functionplotresponse { } elsif ($target eq 'meta') { $result=&Apache::response::meta_package_write('functionplotresponse'); - } elsif ($target eq 'web') { -# paste in the update routine to receive stuff back from the applet - $result.=&update_script($internalid); -# start the initscript for this applet - $result.=&start_init_script($internalid); -# put the axis commands inside - $result.=&axes_script($internalid,$xmin,$xmax,$ymin,$ymax,$xaxisvisible,$yaxisvisible,$gridvisible); - $result.=&axes_label($internalid,$xlabel,$ylabel); -# init script is left open - } + } elsif (($target eq 'answer') && + ($env{'form.answer_output_mode'} ne 'tex') && + ($Apache::lonhomework::viewgrades == 'F')) { + my (undef,undef,$udom,$uname)=&Apache::lonnet::whichuser(); + my $windowopen=&Apache::lonhtmlcommon::javascript_docopen(); + my $start_page = &Apache::loncommon::start_page('Rules Log', undef, + {'only_body' => 1, + 'bgcolor' => '#FFFFFF', + 'js_ready' => 1,}); + my $end_page = &Apache::loncommon::end_page({'js_ready' => 1,}); + $uname =~s/\W//g; + $udom =~s/\W//g; + my $function_name = + join('_','LONCAPA_scriptvars',$uname,$udom, + $env{'form.counter'},$Apache::lonxml::curdepth); + my $rules_var ="".&mt('Rules Log')."
"; + &Apache::lonxml::add_script_result($rules_var); + } + return $result; } sub compare_rel { my ($relationship,$value,$realval,$tol)=@_; - - - &Apache::lonnet::logthis("Rel $relationship Val $value RV $realval T $tol"); -# is the real value defined? +# is the real value undefined? unless (defined($realval)) { +# the real value is not defined if ($relationship eq 'eq') { if ($value eq 'undef') { return 1; @@ -734,7 +808,13 @@ sub compare_rel { } } -# it is defined. +# is the expected value undefined? + if ($value eq 'undef') { +# but by now we know that the real value is defined + return 0; + } + +# both are defined. if ($relationship eq 'gt') { return ($realval>$value); } elsif ($relationship eq 'ge') { @@ -751,114 +831,181 @@ sub compare_rel { return 0; } +sub addlog { + my ($text)=@_; + $Apache::functionplotresponse::ruleslog.=$text.'
'; +} + +sub actualval { + my ($i,$xmin,$xmax)=@_; + return $xmin+$i/400.*($xmax-$xmin); +} + sub functionplotrulecheck { - my ($rule,$xmin,$xmax,$tolfunc,$toldfdx,$told2fdx2)=@_; - &Apache::lonnet::logthis("Rule $rule TolFunc $tolfunc TolDfDx $toldfdx TolD2fDx2 $told2fdx2"); - my ($label,$derivative,$xinitial,$xinitiallabel,$xfinal,$xfinallabel,$relationship,$value) + my ($rule,$xmin,$xmax,$ymin,$ymax)=@_; + + my ($label,$derivative,$xinitial,$xinitiallabel,$xfinal,$xfinallabel,$minimumlength,$maximumlength,$relationship,$value,$percent) =split(/\:/,$rule); -# if a hard value is set for the boundaries, it overrides the label - if (($xinitial ne '') && ($xinitiallabel ne '')) { - $Apache::functionplotresponse::functionplotrulelabels{$xinitiallabel}=$xinitial; + $percent=($percent>0?$percent:5); + &addlog("================="); + &addlog("Rule $label for ".('function itself','first derivative','second derivative')[$derivative]." $relationship $value"); + my $li=0; + my $lh=400; + +# Special case: the upper boundary was not defined +# and needs to be set to the value where +# the condition is not true anymore => set flag + + my $findupper=0; + if (($xfinal eq '') + && (!defined($Apache::functionplotresponse::functionplotrulelabels{$xfinallabel})) + && ($xfinallabel)) { + $findupper=1; } - if (($xfinal ne '') && ($xfinallabel ne '')) { - $Apache::functionplotresponse::functionplotrulelabels{$xfinallabel}=$xfinal; + +# if a hard value is set for the boundaries, it overrides the label + if (($xinitial ne '') && ($xinitiallabel ne '') && ($xinitiallabel ne 'start')) { + $li=&array_index($xmin,$xmax,$xinitial); + $Apache::functionplotresponse::functionplotrulelabels{$xinitiallabel}=$li; + } + if (($xfinal ne '') && ($xfinallabel ne '') && ($xfinallabel ne 'end')) { + $lh=&array_index($xmin,$xmax,$xfinal); + $Apache::functionplotresponse::functionplotrulelabels{$xfinallabel}=$lh; } +# if the label is defined, use it if (defined($Apache::functionplotresponse::functionplotrulelabels{$xinitiallabel})) { - $xinitial=$Apache::functionplotresponse::functionplotrulelabels{$xinitiallabel}; + &addlog("Using lower label $xinitiallabel"); + $li=$Apache::functionplotresponse::functionplotrulelabels{$xinitiallabel}; + } else { + $li=&array_index($xmin,$xmax,$xinitial); } - if (defined($Apache::functionplotresponse::functionplotrulelabels{$xfinallabel})) { - $xfinal=$Apache::functionplotresponse::functionplotrulelabels{$xfinallabel}; + unless ($findupper) { + if (defined($Apache::functionplotresponse::functionplotrulelabels{$xfinallabel})) { + &addlog("Using upper label $xfinallabel"); + $lh=$Apache::functionplotresponse::functionplotrulelabels{$xfinallabel}-1; + } else { + $lh=&array_index($xmin,$xmax,$xfinal); + } } # Basic sanity checks - if ($xinitial eq '') { - $xinitial=0; - } - if ($xfinal eq '') { - $xfinal=$xinitial; - } - if ($xinitial>$xfinal) { - $xfinal=$xinitial; - } - &Apache::lonnet::logthis("Init $xinitial Final $xfinal"); - my $tol=$tolfunc; - if ($derivative==2) { - $tol=$told2fdx2; - } elsif ($derivative==1) { - $tol=$toldfdx; + if ($li<0) { $li=0; } + if ($lh>400) { $lh=400; } + if (($li>$lh) || (!defined($lh))) { + $lh=$li; + } + + &addlog("Boundaries: x=".&actualval($li,$xmin,$xmax)." (".$Apache::functionplotresponse::actualxval[$li]."; index $li)) to x=". + &actualval($lh,$xmin,$xmax)." (".$Apache::functionplotresponse::actualxval[$lh]."; index $lh))"); + if ($findupper) { + &addlog("Looking for label $xfinallabel"); + } + my $tol=$percent*($ymax-$ymin)/100; + if ($xmax>$xmin) { + if ($derivative==2) { + $tol=4.*$tol/($xmax-$xmin); + } elsif ($derivative==1) { + $tol=2.*$tol/($xmax-$xmin); + } } - - my $li=&array_index($xmin,$xmax,$xinitial); - my $lh=&array_index($xmin,$xmax,$xfinal); for (my $i=$li; $i<=$lh; $i++) { my $val; if ($derivative==2) { - &Apache::lonnet::logthis("Second ". - -$Apache::functionplotresponse::d2funcdx2[$i-1].'__'.$Apache::functionplotresponse::d2funcdx2[$i].'__'.$Apache::functionplotresponse::d2funcdx2[$i+1]); $val=$Apache::functionplotresponse::d2funcdx2[$i]; } elsif ($derivative==1) { $val=$Apache::functionplotresponse::dfuncdx[$i]; } else { $val=$Apache::functionplotresponse::func[$i]; } - unless (&compare_rel($relationship,$value,$val,$tol)) { return 0; }; + unless (&compare_rel($relationship,$value,$val,$tol)) { + &addlog("Actual value ".(defined($val)?$val:'undef').", expected $value, tolerance $tol"); + &addlog("Condition not fulfilled at x=".&actualval($i,$xmin,$xmax)." (".$Apache::functionplotresponse::actualxval[$i]."; index $i)"); + if (($findupper) && ($i>$li)) { +# check for minimum and maximum lengths + my $length=&actualval($i,$xmin,$xmax)-&actualval($li,$xmin,$xmax); + if ($minimumlength) { + if ($length<$minimumlength) { + &addlog("Rule $label failed, actual length $length, minimum length $minimumlength"); + return 0; + } + } + if ($maximumlength) { + if ($length>$maximumlength) { + &addlog("Rule $label failed, actual length $length, maximum length $maximumlength"); + return 0; + } + } + $Apache::functionplotresponse::functionplotrulelabels{$xfinallabel}=$i; + &addlog("Rule $label passed, setting label $xfinallabel"); + return 1; + } else { + &addlog("Rule $label failed."); + my $hintlabel=$label; + $hintlabel=~s/^R//; + push(@Apache::functionplotresponse::failedrules,$hintlabel); + &addlog("Set hint condition $hintlabel"); + return 0; + } + } } + &addlog("Rule $label passed."); return 1; } -sub end_functionplotresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - &Apache::response::end_response; - - my $result; - my $id=$Apache::inputtags::response[-1]; - my $partid=$Apache::inputtags::part; - my $internalid = $partid.'_'.$id; - - if ($target eq 'edit') { $result=&Apache::edit::end_table(); } - if ($target eq 'grade' - && &Apache::response::submitted() - && $Apache::lonhomework::type eq 'exam') { - - &Apache::response::scored_response($partid,$id); +sub start_functionplotruleset { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + if ($target eq 'edit') { + return &Apache::edit::start_table($token). + ''.&mt('Function Plot Rule Set').'' + .''.&mt('Delete?').' ' + .&Apache::edit::deletelist($target,$token).'   '. + &Apache::edit::insertlist($target,$token) + .'' + ." " + .&Apache::edit::end_row() + .&Apache::edit::start_spanning_row() + ."\n"; + } +} - } elsif ($target eq 'grade' +sub end_functionplotruleset { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $id=$Apache::inputtags::response[-1]; + my $partid=$Apache::inputtags::part; + my $internalid = $partid.'_'.$id; + + if ($target eq 'edit' ) { + return &Apache::edit::end_table(); + } elsif ($target eq 'grade' && &Apache::response::submitted() && $Apache::lonhomework::type ne 'exam') { - my ($response,%coords)=&get_answer_from_form_fields($internalid); - $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response; - my %previous=&Apache::response::check_for_previous($response,$partid,$id); # # Actually grade # - my $xmin=&Apache::lonxml::get_param('xmin',$parstack,$safeeval); + my $xmin=&Apache::lonxml::get_param('xmin',$parstack,$safeeval,-2); $xmin=(defined($xmin)?$xmin:-10); - my $xmax=&Apache::lonxml::get_param('xmax',$parstack,$safeeval); + my $xmax=&Apache::lonxml::get_param('xmax',$parstack,$safeeval,-2); $xmax=(defined($xmax)?$xmax:10); - my $ymin=&Apache::lonxml::get_param('ymin',$parstack,$safeeval); + my $ymin=&Apache::lonxml::get_param('ymin',$parstack,$safeeval,-2); $ymin=(defined($ymin)?$ymin:-10); - my $ymax=&Apache::lonxml::get_param('ymax',$parstack,$safeeval); + my $ymax=&Apache::lonxml::get_param('ymax',$parstack,$safeeval,-2); $ymax=(defined($ymax)?$ymax:10); - my $percent=&Apache::lonxml::get_param('percenterror',$parstack,$safeeval); - $percent=(defined($percent)?$percent:5); - - my $tolfunc=$percent*($ymax-$ymin)/100.; - my $toldfdx=1; - my $told2fdx2=1; - if ($xmax>$xmin) { - $toldfdx=$tolfunc/($xmax-$xmin); - $told2fdx2=$toldfdx/($xmax-$xmin); - } - my $ad=''; + undef %Apache::functionplotresponse::functionplotrulelabels; + $Apache::functionplotresponse::ruleslog=''; + $Apache::functionplotresponse::functionplotrulelabels{'start'}=400; + $Apache::functionplotresponse::functionplotrulelabels{'end'}=0; if (&populate_arrays($internalid,$xmin,$xmax) eq 'no_func') { $ad='NOT_FUNCTION'; } else { + &addlog("Start of function ".&actualval($Apache::functionplotresponse::functionplotrulelabels{'start'},$xmin,$xmax)." (index ". + $Apache::functionplotresponse::functionplotrulelabels{'start'}.")"); + &addlog("End of function ".&actualval($Apache::functionplotresponse::functionplotrulelabels{'end'},$xmin,$xmax)." (index ". + $Apache::functionplotresponse::functionplotrulelabels{'end'}.")"); + # We have a function that we can actually grade, go through the spline rules. - undef %Apache::functionplotresponse::functionplotrulelabels; foreach my $rule (@Apache::functionplotresponse::functionplotrules) { - unless (&functionplotrulecheck($rule,$xmin,$xmax,$tolfunc,$toldfdx,$told2fdx2)) { + unless (&functionplotrulecheck($rule,$xmin,$xmax,$ymin,$ymax)) { $ad='INCORRECT'; last; } @@ -866,13 +1013,60 @@ sub end_functionplotresponse { # If it's not wrong, it's correct unless ($ad) { $ad='EXACT_ANS' }; } + &addlog("Set hint conditions: ".join(",",@Apache::functionplotresponse::failedrules)); + &addlog("Assigned award detail: $ad"); +# Store for later to be assigned at end_functionplotresponse + $Apache::functionplotresponse::awarddetail=$ad; + } +} + + +sub end_functionplotresponse { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + &Apache::response::end_response; + + my $result; + my $id=$Apache::inputtags::response[-1]; + my $partid=$Apache::inputtags::part; + my $internalid = $partid.'_'.$id; + + if ($target eq 'edit') { $result=&Apache::edit::end_table(); } + if ($target eq 'grade' + && &Apache::response::submitted() + && $Apache::lonhomework::type eq 'exam') { + + &Apache::response::scored_response($partid,$id); + } elsif ($target eq 'grade' + && &Apache::response::submitted() + && $Apache::lonhomework::type ne 'exam') { + my ($response,%coords)=&get_answer_from_form_fields($internalid); + $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response; + my %previous=&Apache::response::check_for_previous($response,$partid,$id); +# +# Assign grade +# + my $ad=$Apache::functionplotresponse::awarddetail; # # Store grading info # $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}=$ad; &Apache::response::handle_previous(\%previous,$ad); } elsif ($target eq 'web') { + undef @Apache::functionplotresponse::failedrules; + } + return $result; +} + +sub end_functionplotelements { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; + my $result=''; + my $id=$Apache::inputtags::response[-1]; + my $partid=$Apache::inputtags::part; + my $internalid = $partid.'_'.$id; + if ($target eq 'edit' ) { + $result=&Apache::edit::end_table(); + } elsif ($target eq 'web') { # Now is the time to render all of the stored splines foreach my $label (keys(%Apache::functionplotresponse::splineorder)) { $result.=&generate_spline($internalid,$label); @@ -899,6 +1093,58 @@ sub end_functionplotresponse { } return $result; } + +sub start_functionplotelements { + my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my $result=''; + my $id=$Apache::inputtags::response[-1]; + my $partid=$Apache::inputtags::part; + my $internalid = $partid.'_'.$id; + + if ($target eq 'edit') { + return &Apache::edit::start_table($token). + ''.&mt('Function Plot Elements').'' + .''.&mt('Delete?').' ' + .&Apache::edit::deletelist($target,$token).'   '. + &Apache::edit::insertlist($target,$token) + .'' + ." " + .&Apache::edit::end_row() + .&Apache::edit::start_spanning_row() + ."\n"; + } elsif ($target eq 'web') { + my $xmin=&Apache::lonxml::get_param('xmin',$parstack,$safeeval,-2); + $xmin=(defined($xmin)?$xmin:-10); + my $xmax=&Apache::lonxml::get_param('xmax',$parstack,$safeeval,-2); + $xmax=(defined($xmax)?$xmax:10); + my $ymin=&Apache::lonxml::get_param('ymin',$parstack,$safeeval,-2); + $ymin=(defined($ymin)?$ymin:-10); + my $ymax=&Apache::lonxml::get_param('ymax',$parstack,$safeeval,-2); + $ymax=(defined($ymax)?$ymax:10); + if ($xmax<=$xmin) { + $xmax=$xmin+20; + } + if ($ymax<=$ymin) { + $ymax=$ymin+20; + } + my $xaxisvisible=(&Apache::lonxml::get_param('xaxisvisible',$parstack,$safeeval,-2)=~/on|true|yes|1/i?'true':'false'); + my $yaxisvisible=(&Apache::lonxml::get_param('yaxisvisible',$parstack,$safeeval,-2)=~/on|true|yes|1/i?'true':'false'); + my $gridvisible=(&Apache::lonxml::get_param('gridvisible',$parstack,$safeeval,-2)=~/on|true|yes|1/i?'true':'false'); + my $xlabel=&Apache::lonxml::get_param('xlabel',$parstack,$safeeval,-2); + my $ylabel=&Apache::lonxml::get_param('ylabel',$parstack,$safeeval,-2); + + +# paste in the update routine to receive stuff back from the applet + $result.=&update_script($internalid); +# start the initscript for this applet + $result.=&start_init_script($internalid); +# put the axis commands inside + $result.=&axes_script($internalid,$xmin,$xmax,$ymin,$ymax,$xaxisvisible,$yaxisvisible,$gridvisible); + $result.=&axes_label($internalid,$xlabel,$ylabel); +# init script is left open + } + return $result; +} 1;