version 1.63, 2011/05/27 23:00:58
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version 1.68, 2011/10/19 13:21:51
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Line 31 use strict;
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Line 31 use strict;
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use Apache::response(); |
use Apache::response(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
use Apache::lonnet; |
use Apache::lonnet; |
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use Apache::run; |
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BEGIN { |
BEGIN { |
&Apache::lonxml::register('Apache::functionplotresponse',('functionplotresponse','backgroundplot','spline', |
&Apache::lonxml::register('Apache::functionplotresponse',('functionplotresponse','backgroundplot','spline', |
Line 163 sub update_register {
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Line 164 sub update_register {
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sub set_point_coordinate { |
sub set_point_coordinate { |
my ($id,$variable,$x,$y,$fixed)=@_; |
my ($id,$variable,$x,$y,$fixed)=@_; |
my $mult=($fixed?'a*':''); |
my $mult=($fixed?'a*':''); |
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# Get rid of wild exponents, make sure it's a number |
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$x=1.*$x; |
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$y=1.*$y; |
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# GeoGebra does not understand "E" |
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$x=~s/[e|E]/\*10\^/; |
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$x=~s/\+//; |
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$y=~s/[e|E]/\*10\^/; |
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$y=~s/\+//; |
return (<<ENDSETVARIABLE); |
return (<<ENDSETVARIABLE); |
document.ggbApplet_$id.evalCommand("a=1"); |
document.ggbApplet_$id.evalCommand("a=1"); |
document.ggbApplet_$id.evalCommand("$variable=$mult($x,$y)"); |
document.ggbApplet_$id.evalCommand("$variable=$mult($x,$y)"); |
Line 563 sub start_functionplotrule {
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Line 572 sub start_functionplotrule {
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['lt','less than'], |
['lt','less than'], |
['le','less than or equal']],$token). |
['le','less than or equal']],$token). |
$result.= &Apache::edit::select_or_text_arg('Value:','value', |
$result.= &Apache::edit::select_or_text_arg('Value:','value', |
[['undef','not defined']],$token,'8'). |
[['undef','not defined']],$token,'30'). |
&Apache::edit::text_arg('Percent error:','percenterror', |
&Apache::edit::text_arg('Percent error:','percenterror', |
$token,'8'). |
$token,'8'). |
&Apache::edit::end_row(); |
&Apache::edit::end_row(); |
Line 751 sub array_index {
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Line 760 sub array_index {
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# |
# |
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sub populate_arrays { |
sub populate_arrays { |
my ($id,$xmin,$xmax)=@_; |
my ($id,$xmin,$xmax,$ymin,$ymax)=@_; |
for (my $i=0; $i<=400; $i++) { |
for (my $i=0; $i<=400; $i++) { |
$Apache::functionplotresponse::actualxval[$i]=undef; |
$Apache::functionplotresponse::actualxval[$i]=undef; |
$Apache::functionplotresponse::func[$i]=undef; |
$Apache::functionplotresponse::func[$i]=undef; |
Line 779 sub populate_arrays {
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Line 788 sub populate_arrays {
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my $xi=&array_index($xmin,$xmax,$xreal); |
my $xi=&array_index($xmin,$xmax,$xreal); |
if ($xi<$xiold) { return 'no_func'; } |
if ($xi<$xiold) { return 'no_func'; } |
if (($xi>$xiold) && ($xi>=0) && ($xi<=400)) { |
if (($xi>$xiold) && ($xi>=0) && ($xi<=400)) { |
if (defined($Apache::functionplotresponse::func[$xi])) { return 'no_func'; } |
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$xiold=$xi; |
$xiold=$xi; |
$Apache::functionplotresponse::actualxval[$xi]=$xreal; |
$Apache::functionplotresponse::actualxval[$xi]=$xreal; |
# Function value |
# Function value |
my $funcval=&cubic_hermite($t,@yparms); |
my $funcval=&cubic_hermite($t,@yparms); |
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# Do we already have a value for this point, and is it different from the new one? |
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if ((defined($Apache::functionplotresponse::func[$xi])) && |
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(abs($Apache::functionplotresponse::func[$xi]-$funcval)>($ymax-$ymin)/100.)) { |
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return 'no_func'; |
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} |
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# Okay, remember the new point |
$Apache::functionplotresponse::func[$xi]=$funcval; |
$Apache::functionplotresponse::func[$xi]=$funcval; |
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if (defined($funcval)) { |
if (defined($funcval)) { |
if ($xi<$Apache::functionplotresponse::functionplotrulelabels{'start'}) { |
if ($xi<$Apache::functionplotresponse::functionplotrulelabels{'start'}) { |
$Apache::functionplotresponse::functionplotrulelabels{'start'}=$xi; |
$Apache::functionplotresponse::functionplotrulelabels{'start'}=$xi; |
Line 965 sub compare_rel {
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Line 981 sub compare_rel {
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sub addlog { |
sub addlog { |
my ($text)=@_; |
my ($text)=@_; |
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$text=~s/\'/\\\'/g; |
$Apache::functionplotresponse::ruleslog.=$text.'<br />'; |
$Apache::functionplotresponse::ruleslog.=$text.'<br />'; |
} |
} |
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Line 972 sub actualval {
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Line 989 sub actualval {
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my ($i,$xmin,$xmax)=@_; |
my ($i,$xmin,$xmax)=@_; |
return $xmin+$i/400.*($xmax-$xmin); |
return $xmin+$i/400.*($xmax-$xmin); |
} |
} |
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sub fpr_val { |
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my ($arg)=@_; |
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return &actualval($Apache::functionplotresponse::functionplotrulelabels{$arg}, |
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$Apache::functionplotresponse::fpr_xmin, |
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$Apache::functionplotresponse::fpr_xmax); |
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} |
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sub fpr_f { |
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my ($arg)=@_; |
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return $Apache::functionplotresponse::func[&array_index($Apache::functionplotresponse::fpr_xmin, |
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$Apache::functionplotresponse::fpr_xmax, |
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$arg)]; |
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} |
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sub fpr_dfdx { |
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my ($arg)=@_; |
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return $Apache::functionplotresponse::dfuncdx[&array_index($Apache::functionplotresponse::fpr_xmin, |
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$Apache::functionplotresponse::fpr_xmax, |
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$arg)]; |
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} |
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sub fpr_d2fdx2 { |
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my ($arg)=@_; |
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return $Apache::functionplotresponse::d2funcdx2[&array_index($Apache::functionplotresponse::fpr_xmin, |
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$Apache::functionplotresponse::fpr_xmax, |
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$arg)]; |
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} |
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sub functionplotrulecheck { |
sub functionplotrulecheck { |
my ($rule,$xmin,$xmax,$ymin,$ymax)=@_; |
my ($rule,$xmin,$xmax,$ymin,$ymax,$safeeval)=@_; |
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my ($label,$derivative,$xinitial,$xinitiallabel,$xfinal,$xfinallabel,$minimumlength,$maximumlength,$relationship,$value,$percent) |
my ($label,$derivative,$xinitial,$xinitiallabel,$xfinal,$xfinallabel,$minimumlength,$maximumlength,$relationship,$value,$percent) |
=split(/\:/,$rule); |
=split(/\:/,$rule); |
$percent=($percent>0?$percent:5); |
$percent=($percent>0?$percent:5); |
&addlog("================="); |
&addlog("================="); |
&addlog("Rule $label for ".($derivative<0?'integral':('function itself','first derivative','second derivative')[$derivative])." $relationship $value"); |
&addlog("Rule $label for ".($derivative<0?'integral':('function itself','first derivative','second derivative')[$derivative])." $relationship $value"); |
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# |
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# Evaluate the value |
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# |
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if ($value=~/\D/) { |
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$Apache::functionplotresponse::fpr_xmin=$xmin; |
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$Apache::functionplotresponse::fpr_xmax=$xmax; |
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$value=&Apache::run::run($value,$safeeval); |
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&addlog("Value evaluated to $value"); |
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} |
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# |
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# Minimum and maximum lengths of the interval |
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# |
if ((defined($minimumlength)) || (defined($maximumlength))) { |
if ((defined($minimumlength)) || (defined($maximumlength))) { |
&addlog("Minimumlength $minimumlength Maximumlength $maximumlength"); |
&addlog("Minimumlength $minimumlength Maximumlength $maximumlength"); |
} |
} |
Line 1169 sub end_functionplotruleset {
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Line 1227 sub end_functionplotruleset {
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$Apache::functionplotresponse::ruleslog=''; |
$Apache::functionplotresponse::ruleslog=''; |
$Apache::functionplotresponse::functionplotrulelabels{'start'}=400; |
$Apache::functionplotresponse::functionplotrulelabels{'start'}=400; |
$Apache::functionplotresponse::functionplotrulelabels{'end'}=0; |
$Apache::functionplotresponse::functionplotrulelabels{'end'}=0; |
if (&populate_arrays($internalid,$xmin,$xmax) eq 'no_func') { |
if (&populate_arrays($internalid,$xmin,$xmax,$ymin,$ymax) eq 'no_func') { |
$ad='NOT_FUNCTION'; |
$ad='NOT_FUNCTION'; |
} else { |
} else { |
&addlog("Start of function ".&actualval($Apache::functionplotresponse::functionplotrulelabels{'start'},$xmin,$xmax)." (index ". |
&addlog("Start of function ".&actualval($Apache::functionplotresponse::functionplotrulelabels{'start'},$xmin,$xmax)." (index ". |
Line 1179 sub end_functionplotruleset {
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Line 1237 sub end_functionplotruleset {
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# We have a function that we can actually grade, go through the spline rules. |
# We have a function that we can actually grade, go through the spline rules. |
foreach my $rule (@Apache::functionplotresponse::functionplotrules) { |
foreach my $rule (@Apache::functionplotresponse::functionplotrules) { |
unless (&functionplotrulecheck($rule,$xmin,$xmax,$ymin,$ymax)) { |
unless (&functionplotrulecheck($rule,$xmin,$xmax,$ymin,$ymax,$safeeval)) { |
$ad='INCORRECT'; |
$ad='INCORRECT'; |
last; |
last; |
} |
} |