--- loncom/homework/functionplotresponse.pm 2010/11/20 21:35:53 1.43
+++ loncom/homework/functionplotresponse.pm 2010/12/03 00:52:59 1.49
@@ -1,7 +1,7 @@
# LearningOnline Network with CAPA
# option list style responses
#
-# $Id: functionplotresponse.pm,v 1.43 2010/11/20 21:35:53 www Exp $
+# $Id: functionplotresponse.pm,v 1.49 2010/12/03 00:52:59 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -161,9 +161,11 @@ sub update_register {
# Set a point coordinate variable
#
sub set_point_coordinate {
- my ($id,$variable,$x,$y)=@_;
+ my ($id,$variable,$x,$y,$fixed)=@_;
+ my $mult=($fixed?'a*':'');
return (<<ENDSETVARIABLE);
-document.ggbApplet_$id.evalCommand("$variable=($x,$y)");
+document.ggbApplet_$id.evalCommand("a=1");
+document.ggbApplet_$id.evalCommand("$variable=$mult($x,$y)");
document.ggbApplet_$id.setLabelVisible("$variable",false);
ENDSETVARIABLE
}
@@ -172,21 +174,23 @@ ENDSETVARIABLE
# Set a slope coordinate variable
#
sub set_slope_coordinate {
- my ($id,$variable,$xrel,$yrel,$xmin,$xmax,$ymin,$ymax,$pointname)=@_;
+ my ($id,$variable,$xrel,$yrel,$xmin,$xmax,$ymin,$ymax,$pointname,$fixed)=@_;
my $xvariable=$variable.'x';
my $yvariable=$variable.'y';
my $domain=$xmax-$xmin;
my $range=$ymax-$ymin;
my $xinterval=$domain/100.;
my $yinterval=$range/200.;
+ my $mult=($fixed?'a*':'');
return (<<ENDSETSVARIABLE);
+document.ggbApplet_$id.evalCommand("a=1");
document.ggbApplet_$id.evalCommand("$xvariable=Slider[0,$domain,$xinterval]");
document.ggbApplet_$id.setVisible("$xvariable", false);
document.ggbApplet_$id.evalCommand("$xvariable=$xrel");
document.ggbApplet_$id.evalCommand("$yvariable=Slider[-$range,$range,$yinterval]");
document.ggbApplet_$id.setVisible("$yvariable", false);
document.ggbApplet_$id.evalCommand("$yvariable=$yrel");
-document.ggbApplet_$id.evalCommand("$variable=($xvariable+x($pointname),$yvariable+y($pointname))");
+document.ggbApplet_$id.evalCommand("$variable=$mult($xvariable+x($pointname),$yvariable+y($pointname))");
document.ggbApplet_$id.setLabelVisible("$variable", false);
ENDSETSVARIABLE
}
@@ -215,7 +219,7 @@ sub generate_input_field {
# Initialize a new point coordinate variable at set a listener on it
#
sub new_point_coordinate {
- my ($id,$variable,$x,$y)=@_;
+ my ($id,$variable,$x,$y,$fixed)=@_;
if (defined($Apache::functionplotresponse::previous{&field_name($id,$variable,'x')})) {
$x=$Apache::functionplotresponse::previous{&field_name($id,$variable,'x')};
}
@@ -223,14 +227,14 @@ sub new_point_coordinate {
$y=$Apache::functionplotresponse::previous{&field_name($id,$variable,'y')};
}
&generate_input_field($id,$variable,$x,$y);
- return &set_point_coordinate($id,$variable,$x,$y).&update_register($id,$variable);
+ return &set_point_coordinate($id,$variable,$x,$y,$fixed).&update_register($id,$variable);
}
#
# Initialize a new slope coordinate variable at set a listener on it
#
sub new_slope_coordinate {
- my ($id,$variable,$x,$y,$pointname,$xp,$yp,$xmin,$xmax,$ymin,$ymax)=@_;
+ my ($id,$variable,$x,$y,$pointname,$xp,$yp,$xmin,$xmax,$ymin,$ymax,$fixed)=@_;
#
# $variable: name of the slope point
# $x, $y: coordinates of the slope point
@@ -253,7 +257,7 @@ sub new_slope_coordinate {
&generate_input_field($id,$variable,$x,$y);
my $xrel=$x-$xp;
my $yrel=$y-$yp;
- return &set_slope_coordinate($id,$variable,$xrel,$yrel,$xmin,$xmax,$ymin,$ymax,$pointname).&update_register($id,$variable);
+ return &set_slope_coordinate($id,$variable,$xrel,$yrel,$xmin,$xmax,$ymin,$ymax,$pointname,$fixed).&update_register($id,$variable);
}
#
@@ -295,28 +299,42 @@ ENDAXESSCRIPT
}
sub axes_label {
- my ($id,$xlabel,$ylabel)=@_;
+ my ($id,$xmin,$xmax,$ymin,$ymax,$xlabel,$ylabel)=@_;
unless ($xlabel || $ylabel) { return ''; }
my $return='document.ggbApplet_'.$id.'.evalCommand("topRight=Corner[3]");';
if ($xlabel) {
+ if (($ymin<0) && ($ymax>0)) {
$return.=(<<ENDXAXISLABELSCRIPT);
document.ggbApplet_$id.evalCommand("Xlabel=(x(topRight)-AxisStepX[],AxisStepY[]/6)");
document.ggbApplet_$id.setVisible("Xlabel",false);
document.ggbApplet_$id.evalCommand("Text[\\"$xlabel\\", Xlabel]");
ENDXAXISLABELSCRIPT
+ } else {
+ $return.=(<<ENDXOFFAXISLABEL);
+document.ggbApplet_$id.evalCommand("LowerRight=Corner[2]");
+document.ggbApplet_$id.evalCommand("Text[\\"$xlabel\\", (x(LowerRight) - AxisStepX[], y(LowerRight) + AxisStepY[] / 2)]");
+ENDXOFFAXISLABEL
+ }
}
if ($ylabel) {
+ if (($xmin<0) && ($xmax>0)) {
$return.=(<<ENDYAXISLABELSCRIPT);
document.ggbApplet_$id.evalCommand("Ylabel=(AxisStepX[]/6,y(topRight)-AxisStepY[]/3)");
document.ggbApplet_$id.setVisible("Ylabel",false);
document.ggbApplet_$id.evalCommand("Text[\\"$ylabel\\", Ylabel]");
ENDYAXISLABELSCRIPT
+ } else {
+ $return.=(<<ENDYOFFAXISLABEL);
+document.ggbApplet_$id.evalCommand("UpperLeft=Corner[4]");
+document.ggbApplet_$id.evalCommand("Text[\\"$ylabel\\", (x(UpperLeft) + AxisStepX[] / 5, y(UpperLeft) - AxisStepY[] / 1.8)]");
+ENDYOFFAXISLABEL
+ }
}
return $return;
}
sub plot_script {
- my ($id,$function,$fixed,$label,$xmin,$xmax)=@_;
+ my ($id,$function,$fixed,$label,$color,$xmin,$xmax,$thickness)=@_;
$label=~s/\W//g;
if (($label) && ($label!~/^[A-Za-z]/)) {
$label='C'.$label;
@@ -328,11 +346,22 @@ sub plot_script {
$Apache::functionplotresponse::counter++;
$label='C'.$Apache::functionplotresponse::counter;
}
+ my $rc=0;
+ my $gc=0;
+ my $bc=0;
+ if ($color) {
+ my ($rh,$gh,$bh)=($color=~/(..)(..)(..)/);
+ $rc=hex($rh);
+ $gc=hex($gh);
+ $bc=hex($bh);
+ }
if ($fixed) {
return "document.ggbApplet_$id.evalCommand('$label=Function[$function,$xmin,$xmax]');\n".
- ($visible?'':"document.ggbApplet_$id.setLabelVisible('$label', false);\n");
+ ($visible?'':"document.ggbApplet_$id.setLabelVisible('$label', false);\n").
+ ($color?"document.ggbApplet_$id.setColor('$label',$rc,$gc,$bc);\n":'').
+ ($thickness?"document.ggbApplet_$id.setLineThickness('$label',$thickness);\n":'');
} else {
- return "document.ggbApplet_$id.evalCommand('y=$function')";
+ return "document.ggbApplet_$id.evalCommand('y=$function');\n";
}
}
@@ -341,7 +370,7 @@ sub plot_script {
#
sub generate_spline {
- my ($id,$label,$xmin,$xmax,$ymin,$ymax)=@_;
+ my ($id,$label,$xmin,$xmax,$ymin,$ymax,$fixed)=@_;
my $result='';
my $order=$Apache::functionplotresponse::splineorder{$label};
my $x=$Apache::functionplotresponse::splineinitx{$label};
@@ -350,11 +379,11 @@ sub generate_spline {
my $sy=$Apache::functionplotresponse::splinescaley{$label};
my @coords=();
foreach my $i (1..$order) {
- $result.=&new_point_coordinate($id,$label.'P'.$i,$x,$y);
+ $result.=&new_point_coordinate($id,$label.'P'.$i,$x,$y,$fixed);
my $xp=$x;
$x+=$sx/(2.*($order-1));
push(@coords,$label.'P'.$i);
- $result.=&new_slope_coordinate($id,$label.'S'.$i,$x,$y+$sy,$label.'P'.$i,$xp,$y,$xmin,$xmax,$ymin,$ymax);
+ $result.=&new_slope_coordinate($id,$label.'S'.$i,$x,$y+$sy,$label.'P'.$i,$xp,$y,$xmin,$xmax,$ymin,$ymax,$fixed);
$x+=$sx/(2.*($order-1));
push(@coords,$label.'S'.$i);
}
@@ -369,25 +398,38 @@ sub start_backgroundplot {
my $result='';
my $internalid = $Apache::inputtags::part.'_'.$Apache::inputtags::response[-1];
my $function=&Apache::lonxml::get_param('function',$parstack,$safeeval);
+ my $xinitial=&Apache::lonxml::get_param('xinitial',$parstack,$safeeval);
+ my $xfinal=&Apache::lonxml::get_param('xfinal',$parstack,$safeeval);
my $label=&Apache::lonxml::get_param('label',$parstack,$safeeval);
+ my $color=&Apache::lonxml::get_param('color',$parstack,$safeeval);
+ $color=~s/[^a-fA-F0-9]//gs;
+ unless (length($color)==6) { $color=''; }
my $fixed=(&Apache::lonxml::get_param('fixed',$parstack,$safeeval)=~/on|true|yes|1/i?1:0);
unless ($function) { $function="0"; }
if ($target eq 'web') {
my ($xmin,$xmax,$ymin,$ymax)=&boundaries($parstack,$safeeval,-3);
- $result.=&plot_script($internalid,$function,$fixed,$label,$xmin,$xmax);
+ unless (defined($xinitial)) { $xinitial=$xmin; }
+ unless (defined($xfinal)) { $xfinal=$xmax; }
+ $result.=&plot_script($internalid,$function,$fixed,$label,$color,$xinitial,$xfinal);
} elsif ($target eq 'edit') {
$result=&Apache::edit::tag_start($target,$token,'Background Function Plot').
&Apache::edit::text_arg('Function:','function',
$token,'16').
+ &Apache::edit::text_arg('Initial x-value (optional):','xinitial',
+ $token,'8').
+ &Apache::edit::text_arg('Final x-value (optional):','xfinal',
+ $token,'8').
&Apache::edit::text_arg('Label on Plot:','label',
$token,'8').
+ &Apache::edit::text_arg('Color (hex code):','color',
+ $token,'8').
&Apache::edit::select_arg('Fixed location:','fixed',
['yes','no'],$token).
&Apache::edit::end_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
- $safeeval,'function','label','fixed');
+ $safeeval,'function','label','xinitial','xfinal','color','fixed');
if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
}
return $result;
@@ -467,18 +509,19 @@ sub start_functionplotrule {
['1','First derivative'],
['2','Second derivative'],
['-1','Integral']],$token).'<br />'.
- &Apache::edit::text_arg('(Initial) x-value:','xinitial',
+ &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').'<br />'.
+ &Apache::edit::select_or_text_arg('Initial x-value label:','xinitiallabel',
+ [['start','Start of Plot'],
+ ['end','End of Plot']],$token,'8').'<br />'.
- &Apache::edit::text_arg('Optional final x-value for ranges:','xfinal',
+ &Apache::edit::text_arg('Final x-value (optional):','xfinal',
$token,'8').
- &Apache::edit::select_or_text_arg('Optional final x-value label:','xfinallabel',
+ &Apache::edit::select_or_text_arg('Final x-value label (optional):','xfinallabel',
[['end','End of Plot']],$token,'8').'<br />'.
- &Apache::edit::text_arg('Optional minimum length for range:','minimumlength',
+ &Apache::edit::text_arg('Minimum length for range (optional):','minimumlength',
$token,'8').
- &Apache::edit::text_arg('Optional maximum length for range:','maximumlength',
+ &Apache::edit::text_arg('Maximum length for range (optional):','maximumlength',
$token,'8').'<br />'.
&Apache::edit::select_or_text_arg(&mt('Relationship:'),'relationship',
[['eq','equal'],
@@ -562,7 +605,7 @@ sub start_spline {
&Apache::edit::text_arg('Index:','index',
$token,'4').' '.
&Apache::edit::select_arg('Order:','order',
- ['2','3','4','5','6','7','8','9'],$token).' '.
+ ['2','3','4','5','6','7','8'],$token).' '.
&Apache::edit::text_arg('Initial x-value:','initx',
$token,'4').' '.
&Apache::edit::text_arg('Initial y-value:','inity',
@@ -796,12 +839,15 @@ sub start_functionplotresponse {
&Apache::edit::select_arg('y-axis visible:','yaxisvisible',
['yes','no'],$token).'<br />'.
&Apache::edit::select_arg('Grid visible:','gridvisible',
- ['yes','no'],$token).
+ ['yes','no'],$token).'<br />'.
+ &Apache::edit::text_arg('Background plot(s) for answer (function:xmin:xmax,function:xmin:xmax,...):',
+ '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,
$safeeval,'xlabel','xmin','xmax','ylabel','ymin','ymax',
- 'xaxisvisible','yaxisvisible','gridvisible');
+ 'xaxisvisible','yaxisvisible','gridvisible','answerdisplay');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
} elsif ($target eq 'meta') {
@@ -897,6 +943,9 @@ sub functionplotrulecheck {
$percent=($percent>0?$percent:5);
&addlog("=================");
&addlog("Rule $label for ".($derivative<0?'integral':('function itself','first derivative','second derivative')[$derivative])." $relationship $value");
+ if ((defined($minimumlength)) || (defined($maximumlength))) {
+ &addlog("Minimumlength $minimumlength Maximumlength $maximumlength");
+ }
my $li=0;
my $lh=400;
@@ -991,38 +1040,59 @@ sub functionplotrulecheck {
&addlog("Actual value ".(defined($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 $maximumlength");
- return 0;
- }
- }
+# Check lengths
+ unless (&checklength($i,$li,$minimumlength,$maximumlength,$xmin,$xmax,$label)) { return 0; }
+# Successfully found a new label, set it
$Apache::functionplotresponse::functionplotrulelabels{$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 $hintlabel");
+ &setfailed($label);
return 0;
}
}
}
}
+# Corner case where this makes sense: using start or stop as defined labels
+ unless (&checklength($lh,$li,$minimumlength,$maximumlength,$xmin,$xmax,$label)) { return 0; }
&addlog("Rule $label passed.");
return 1;
}
+#
+# check for minimum and maximum lengths
+#
+
+sub checklength {
+ my ($i,$li,$minimumlength,$maximumlength,$xmin,$xmax,$label)=@_;
+ unless (($minimumlength) || ($maximumlength)) { return 1; }
+ my $length=&actualval($i,$xmin,$xmax)-&actualval($li,$xmin,$xmax);
+ if ($minimumlength) {
+ if ($length<$minimumlength) {
+ &addlog("Rule $label failed, actual length $length, minimum length $minimumlength");
+ &setfailed($label);
+ return 0;
+ }
+ }
+ if ($maximumlength) {
+ if ($length>$maximumlength) {
+ &addlog("Rule $label failed, actual length $length, maximum length $maximumlength");
+ &setfailed($label);
+ return 0;
+ }
+ }
+ return 1;
+}
+
+sub setfailed {
+ my ($label)=@_;
+ my $hintlabel=$label;
+ $hintlabel=~s/^R//;
+ push(@Apache::functionplotresponse::failedrules,$hintlabel);
+ &addlog("Set hint condition $hintlabel");
+}
+
sub start_functionplotruleset {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
if ($target eq 'edit') {
@@ -1132,10 +1202,27 @@ sub end_functionplotelements {
if ($target eq 'edit' ) {
$result=&Apache::edit::end_table();
} elsif ($target eq 'web') {
-# Now is the time to render all of the stored splines
my ($xmin,$xmax,$ymin,$ymax)=&boundaries($parstack,$safeeval,-2);
+
+# Are we in show answer mode?
+ my $showanswer=&Apache::response::show_answer();
+ if ($showanswer) {
+# Render answerdisplay
+ my $answerdisplay=&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval,-2);
+ if ($answerdisplay=~/\S/s) {
+ foreach my $plot (split(/\s*\,\s*/,$answerdisplay)) {
+ my ($func,$xl,$xh)=split(/\s*\:\s*/,$plot);
+ if ((!defined($xl)) || ($xl eq '')) { $xl=$xmin; }
+ if ((!defined($xh)) || ($xh eq '')) { $xh=$xmax; }
+ $result.=&plot_script($internalid,$func,1,'','00aa00',$xl,$xh,6);
+ }
+ }
+ }
+ my $fixed=0;
+ if (($showanswer) || (&Apache::response::check_status()>=2)) { $fixed=1; }
+# Now is the time to render all of the stored splines
foreach my $label (keys(%Apache::functionplotresponse::splineorder)) {
- $result.=&generate_spline($internalid,$label,$xmin,$xmax,$ymin,$ymax);
+ $result.=&generate_spline($internalid,$label,$xmin,$xmax,$ymin,$ymax,$fixed);
}
# close the init script
$result.=&end_init_script();
@@ -1212,7 +1299,7 @@ sub start_functionplotelements {
$result.=&start_init_script($internalid);
# put the axis commands inside
$result.=&axes_script($internalid,$xmin,$xmax,$ymin,$ymax,$xaxisvisible,$yaxisvisible,$gridvisible);
- $result.=&axes_label($internalid,$xlabel,$ylabel);
+ $result.=&axes_label($internalid,$xmin,$xmax,$ymin,$ymax,$xlabel,$ylabel);
# init script is left open
}
return $result;