--- loncom/homework/functionplotresponse.pm 2011/04/04 21:06:46 1.59
+++ loncom/homework/functionplotresponse.pm 2011/11/18 16:39:22 1.70
@@ -1,7 +1,7 @@
# LearningOnline Network with CAPA
-# option list style responses
+# Functionplot responses
#
-# $Id: functionplotresponse.pm,v 1.59 2011/04/04 21:06:46 www Exp $
+# $Id: functionplotresponse.pm,v 1.70 2011/11/18 16:39:22 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -31,9 +31,11 @@ use strict;
use Apache::response();
use Apache::lonlocal;
use Apache::lonnet;
+use Apache::run;
BEGIN {
&Apache::lonxml::register('Apache::functionplotresponse',('functionplotresponse','backgroundplot','spline',
+ 'plotobject','plotvector',
'functionplotrule','functionplotruleset',
'functionplotelements'));
}
@@ -74,8 +76,8 @@ sub geogebra_default_parameters {
<param name="image" value="/adm/lonIcons/lonanim.gif" />
<param name="boxborder" value="false" />
<param name="centerimage" value="true" />
- <param name="cache_archive" value="geogebra.jar, geogebra_main.jar, geogebra_gui.jar, geogebra_cas.jar, geogebra_algos.jar, geogebra_export.jar, geogebra_javascript.jar, jlatexmath.jar, jlm_greek.jar, jlm_cyrillic.jar, geogebra_properties.jar" />
- <param name="cache_version" value="3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0, 3.9.214.0" />
+ <param name="cache_archive" value="geogebra.jar, geogebra_main.jar, geogebra_gui.jar, geogebra_cas.jar, geogebra_export.jar, geogebra_algos.jar, geogebra_javascript.jar, geogebra_properties.jar, jlatexmath.jar, jlm_cyrillic.jar, jlm_greek.jar" />
+ <param name="cache_version" value="4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0,4.0.1.0" />
<param name="framePossible" value="false" />
<param name="showResetIcon" value="false" />
@@ -163,6 +165,14 @@ sub update_register {
sub set_point_coordinate {
my ($id,$variable,$x,$y,$fixed)=@_;
my $mult=($fixed?'a*':'');
+# Get rid of wild exponents, make sure it's a number
+ $x=1.*$x;
+ $y=1.*$y;
+# GeoGebra does not understand "E"
+ $x=~s/[e|E]/\*10\^/;
+ $x=~s/\+//;
+ $y=~s/[e|E]/\*10\^/;
+ $y=~s/\+//;
return (<<ENDSETVARIABLE);
document.ggbApplet_$id.evalCommand("a=1");
document.ggbApplet_$id.evalCommand("$variable=$mult($x,$y)");
@@ -370,6 +380,55 @@ sub plot_script {
}
#
+# Subroutine to produce objects
+#
+
+sub plotobject_script {
+ my ($id,$label,$x,$y)=@_;
+ unless ($label) {
+ $Apache::functionplotresponse::counter++;
+ $label='O'.$Apache::functionplotresponse::counter;
+ }
+ return "document.ggbApplet_$id.evalCommand('a=1');\n".
+ "document.ggbApplet_$id.setVisible('a', false);\n".
+ "document.ggbApplet_$id.setLabelVisible('a', false);\n".
+ "document.ggbApplet_$id.evalCommand('$label=a*($x,$y)');\n".
+ "document.ggbApplet_$id.setVisible('$label', true);\n".
+ "document.ggbApplet_$id.setLabelVisible('$label', true);\n";
+}
+
+#
+# Subroutine to produce vectors
+#
+
+sub plotvector_script {
+ my ($id,$label,$xs,$ys,$xe,$ye)=@_;
+ unless ($label) {
+ $Apache::functionplotresponse::counter++;
+ $label='V'.$Apache::functionplotresponse::counter;
+ }
+ return(<<ENDVECTOR);
+document.ggbApplet1.evalCommand("Gravitystart=(20,0)");
+document.ggbApplet1.setVisible("Gravitystart",false);
+document.ggbApplet1.setLabelVisible("Gravitystart",false);
+document.ggbApplet1.evalCommand("Gravityend=(20,-5)");
+document.ggbApplet1.setLabelVisible("Gravityend",false);
+document.ggbApplet1.evalCommand("Gravity=Vector[Gravitystart, Gravityend]");
+document.ggbApplet1.setLabelVisible("Gravity",true);
+document.ggbApplet1.setLineThickness("Gravity",8);
+// Displays the Angle
+document.ggbApplet1.evalCommand("Gravitypoint=(110,y(Gravitystart))"); //The x-value for this should be 2*(xmax-xmin)+xmax;
+document.ggbApplet1.evalCommand("GravityAngle=Angle[Gravitypoint,Gravitystart,Gravityend]");
+document.ggbApplet1.setLabelVisible("GravityAngle",true);
+document.ggbApplet1.setLabelStyle("GravityAngle",VALUE=2);
+// Keeps track of points we care about (This should use the same listener function we use in graph problems)
+//document.ggbApplet1.registerObjectUpdateListener('Gravitystart','updatePointCoordinates');
+//document.ggbApplet1.registerObjectUpdateListener('Gravityend','updatePointCoordinates');
+//document.ggbApplet1.registerObjectUpdateListener('GravityAngle','updatePointCoordinates');
+ENDVECTOR
+}
+
+#
# Answer spline display
#
# points: x,y,slope_x,slope_y
@@ -380,7 +439,7 @@ sub answer_spline_script {
if ($order<2) { $order=2; }
if ($order>8) { $order=8; }
$Apache::functionplotresponse::counter++;
- my $label='C'.$Apache::functionplotresponse::counter;
+ my $label='CSpline'.$Apache::functionplotresponse::counter;
my $output='document.ggbApplet_'.$id.'.evalCommand("'.$label.'=Spline'.$order.'[';
for (my $i=0;$i<=$#points;$i+=4) {
$output.="($points[$i],$points[$i+1]),($points[$i+2],$points[$i+3]),";
@@ -388,8 +447,12 @@ sub answer_spline_script {
$output=~s/\,$//;
$output.=']");'."\n";
for (my $i=2; $i<2*$order; $i+=2) {
- $output.='document.ggbApplet_'.$id.'.setColor("'.$label.'_'.$i.'",0,170,0);'."\n";
+ $output.='document.ggbApplet_'.$id.'.setColor("'.$label.'_'.($i>=10?'{':'').$i.($i>=10?'}':'').'",0,170,0);'."\n";
}
+ for (my $i=1; $i<2*$order; $i+=2) {
+ $output.='document.ggbApplet_'.$id.'.setVisible("'.$label.'_'.($i>=10?'{':'').$i.($i>=10?'}':'').'",false);'."\n";
+ }
+
return $output;
}
@@ -418,6 +481,52 @@ sub generate_spline {
$result.='document.ggbApplet_'.$id.'.evalCommand("Spline'.$order.'['.join(',',@coords).']");'."\n";
return $result;
}
+
+#
+# Object
+#
+
+sub start_plotobject {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result='';
+ my $internalid = $Apache::inputtags::part.'_'.$Apache::inputtags::response[-1];
+ my $x=&Apache::lonxml::get_param('x',$parstack,$safeeval);
+ my $y=&Apache::lonxml::get_param('y',$parstack,$safeeval);
+ my $label=&Apache::lonxml::get_param('label',$parstack,$safeeval);
+ $label=~s/\W//gs;
+ $label=ucfirst($label);
+ unless ($label) { $label="NewObject"; }
+ if ($target eq 'web') {
+ my ($xmin,$xmax,$ymin,$ymax)=&boundaries($parstack,$safeeval,-3);
+ unless (defined($x)) { $x=$xmin; }
+ unless (defined($y)) { $y=$ymin; }
+ $result.=&plotobject_script($internalid,$label,$x,$y);
+ } elsif ($target eq 'edit') {
+ $result=&Apache::edit::tag_start($target,$token,'Plot Object').
+ &Apache::edit::text_arg('Label on Plot:','label',
+ $token,'16').
+ &Apache::edit::text_arg('x:','x',
+ $token,'8').
+ &Apache::edit::text_arg('y:','y',
+ $token,'8').
+ &Apache::edit::end_row();
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'label','x','y');
+ if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
+ }
+ return $result;
+}
+
+sub end_plotobject {
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result='';
+ if ($target eq 'edit') {
+ $result=&Apache::edit::end_table();
+ }
+ return $result;
+}
+
+
#
# <backgroundplot function="..." fixed="yes/no" />
#
@@ -559,7 +668,7 @@ sub start_functionplotrule {
['lt','less than'],
['le','less than or equal']],$token).
$result.= &Apache::edit::select_or_text_arg('Value:','value',
- [['undef','not defined']],$token,'8').
+ [['undef','not defined']],$token,'30').
&Apache::edit::text_arg('Percent error:','percenterror',
$token,'8').
&Apache::edit::end_row();
@@ -747,7 +856,7 @@ sub array_index {
#
sub populate_arrays {
- my ($id,$xmin,$xmax)=@_;
+ my ($id,$xmin,$xmax,$ymin,$ymax)=@_;
for (my $i=0; $i<=400; $i++) {
$Apache::functionplotresponse::actualxval[$i]=undef;
$Apache::functionplotresponse::func[$i]=undef;
@@ -775,12 +884,19 @@ sub populate_arrays {
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
my $funcval=&cubic_hermite($t,@yparms);
+
+# Do we already have a value for this point, and is it different from the new one?
+ if ((defined($Apache::functionplotresponse::func[$xi])) &&
+ (abs($Apache::functionplotresponse::func[$xi]-$funcval)>($ymax-$ymin)/100.)) {
+ return 'no_func';
+ }
+# Okay, remember the new point
$Apache::functionplotresponse::func[$xi]=$funcval;
+
if (defined($funcval)) {
if ($xi<$Apache::functionplotresponse::functionplotrulelabels{'start'}) {
$Apache::functionplotresponse::functionplotrulelabels{'start'}=$xi;
@@ -876,8 +992,7 @@ sub start_functionplotresponse {
&Apache::edit::select_arg('Grid visible:','gridvisible',
['yes','no'],$token).'<br />'.
&Apache::edit::text_arg('Background plot(s) for answer (function(x):xmin:xmax,function(x):xmin:xmax,x1:y1:sx1:sy1:x2:y2:sx2:sy2,...):',
- 'answerdisplay',$token,'50');
-
+ 'answerdisplay',$token,'50').
&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
@@ -962,6 +1077,7 @@ sub compare_rel {
sub addlog {
my ($text)=@_;
+ $text=~s/\'/\\\'/g;
$Apache::functionplotresponse::ruleslog.=$text.'<br />';
}
@@ -969,15 +1085,56 @@ sub actualval {
my ($i,$xmin,$xmax)=@_;
return $xmin+$i/400.*($xmax-$xmin);
}
+
+sub fpr_val {
+ my ($arg)=@_;
+ return &actualval($Apache::functionplotresponse::functionplotrulelabels{$arg},
+ $Apache::functionplotresponse::fpr_xmin,
+ $Apache::functionplotresponse::fpr_xmax);
+}
+
+sub fpr_f {
+ my ($arg)=@_;
+ return $Apache::functionplotresponse::func[&array_index($Apache::functionplotresponse::fpr_xmin,
+ $Apache::functionplotresponse::fpr_xmax,
+ $arg)];
+}
+
+sub fpr_dfdx {
+ my ($arg)=@_;
+ return $Apache::functionplotresponse::dfuncdx[&array_index($Apache::functionplotresponse::fpr_xmin,
+ $Apache::functionplotresponse::fpr_xmax,
+ $arg)];
+}
+
+sub fpr_d2fdx2 {
+ my ($arg)=@_;
+ return $Apache::functionplotresponse::d2funcdx2[&array_index($Apache::functionplotresponse::fpr_xmin,
+ $Apache::functionplotresponse::fpr_xmax,
+ $arg)];
+}
sub functionplotrulecheck {
- my ($rule,$xmin,$xmax,$ymin,$ymax)=@_;
+ my ($rule,$xmin,$xmax,$ymin,$ymax,$safeeval)=@_;
my ($label,$derivative,$xinitial,$xinitiallabel,$xfinal,$xfinallabel,$minimumlength,$maximumlength,$relationship,$value,$percent)
=split(/\:/,$rule);
$percent=($percent>0?$percent:5);
&addlog("=================");
&addlog("Rule $label for ".($derivative<0?'integral':('function itself','first derivative','second derivative')[$derivative])." $relationship $value");
+#
+# Evaluate the value
+#
+ if ($value=~/\D/) {
+ $Apache::functionplotresponse::fpr_xmin=$xmin;
+ $Apache::functionplotresponse::fpr_xmax=$xmax;
+ $value=&Apache::run::run($value,$safeeval);
+ &addlog("Value evaluated to $value");
+ }
+
+#
+# Minimum and maximum lengths of the interval
+#
if ((defined($minimumlength)) || (defined($maximumlength))) {
&addlog("Minimumlength $minimumlength Maximumlength $maximumlength");
}
@@ -1166,7 +1323,7 @@ sub end_functionplotruleset {
$Apache::functionplotresponse::ruleslog='';
$Apache::functionplotresponse::functionplotrulelabels{'start'}=400;
$Apache::functionplotresponse::functionplotrulelabels{'end'}=0;
- if (&populate_arrays($internalid,$xmin,$xmax) eq 'no_func') {
+ if (&populate_arrays($internalid,$xmin,$xmax,$ymin,$ymax) eq 'no_func') {
$ad='NOT_FUNCTION';
} else {
&addlog("Start of function ".&actualval($Apache::functionplotresponse::functionplotrulelabels{'start'},$xmin,$xmax)." (index ".
@@ -1176,7 +1333,7 @@ sub end_functionplotruleset {
# We have a function that we can actually grade, go through the spline rules.
foreach my $rule (@Apache::functionplotresponse::functionplotrules) {
- unless (&functionplotrulecheck($rule,$xmin,$xmax,$ymin,$ymax)) {
+ unless (&functionplotrulecheck($rule,$xmin,$xmax,$ymin,$ymax,$safeeval)) {
$ad='INCORRECT';
last;
}