version 1.42.2.1, 2004/01/15 22:25:31
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version 1.43, 2004/01/09 23:22:19
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# image click response style |
# image click response style |
# |
# |
Line 42 sub start_imageresponse {
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Line 43 sub start_imageresponse {
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
my $result; |
my $result; |
#when in a radiobutton response use these |
#when in a radiobutton response use these |
&Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup')); |
&Apache::lonxml::register('Apache::imageresponse', |
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('foilgroup','foil','text','image','rectangle', |
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'polygon','conceptgroup')); |
push (@Apache::lonxml::namespace,'imageresponse'); |
push (@Apache::lonxml::namespace,'imageresponse'); |
my $id = &Apache::response::start_response($parstack,$safeeval); |
my $id = &Apache::response::start_response($parstack,$safeeval); |
if ($target eq 'meta') { |
if ($target eq 'meta') { |
Line 136 sub prep_image {
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Line 139 sub prep_image {
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my $extrawidth = 2; |
my $extrawidth = 2; |
my @areas = @{ $Apache::response::foilgroup{"$name.area"} }; |
my @areas = @{ $Apache::response::foilgroup{"$name.area"} }; |
foreach my $area (@areas) { |
foreach my $area (@areas) { |
my ($x1,$y1,$x2,$y2)= |
if ($area=~/^rectangle:/) { |
($area=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/); |
my ($x1,$y1,$x2,$y2)= |
my $i=$x{"cgi.$id.BOXCOUNT"}++; |
($area=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/); |
$x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"FFFFFF", |
my $i=$x{"cgi.$id.BOXCOUNT"}++; |
($width+$extrawidth))); |
$x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"FFFFFF", |
$i=$x{"cgi.$id.BOXCOUNT"}++; |
($width+$extrawidth))); |
$x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"00FF00",$width)); |
$i=$x{"cgi.$id.BOXCOUNT"}++; |
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$x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"00FF00",$width)); |
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} elsif ($area=~/^polygon:(.*)/) { |
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my $i=$x{"cgi.$id.POLYCOUNT"}++; |
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$x{"cgi.$id.POLYOPT$i"}=join(':',("FFFFFF",($width+$extrawidth))); |
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$x{"cgi.$id.POLY$i"}=$1; |
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$i=$x{"cgi.$id.POLYCOUNT"}++; |
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$x{"cgi.$id.POLYOPT$i"}=join(':',("00FF00",$width)); |
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$x{"cgi.$id.POLY$i"}=$1; |
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} |
} |
} |
} |
} |
&Apache::lonnet::appenv(%x); |
&Apache::lonnet::appenv(%x); |
Line 211 sub gradefoils {
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Line 223 sub gradefoils {
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&Apache::lonxml::debug("Area of type $1"); |
&Apache::lonxml::debug("Area of type $1"); |
if ($1 eq 'rectangle') { |
if ($1 eq 'rectangle') { |
$grade=&grade_rectangle($area,$x,$y); |
$grade=&grade_rectangle($area,$x,$y); |
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} elsif ($1 eq 'polygon') { |
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$grade=&grade_polygon($area,$x,$y); |
} else { |
} else { |
&Apache::lonxml::error("Unknown area style $area"); |
&Apache::lonxml::error("Unknown area style $area"); |
} |
} |
Line 459 sub end_image {
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Line 473 sub end_image {
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my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat"; |
my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat"; |
$temp_file = Apache::File->new('>>'.$filename); |
$temp_file = Apache::File->new('>>'.$filename); |
print $temp_file "$src\n"; |
print $temp_file "$src\n"; |
$newsrc=~s/\/home\/httpd\/html\/res//; |
$Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; |
$newsrc=~s/\/home\/([^\/]*)\/public_html\//\/$1\//; |
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$newsrc=~s/\/\.\//\//; |
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$newsrc=~s/\/([^\/]+)\.(ps|eps)/\//; |
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$Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool'.$newsrc.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} '; |
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} |
} |
} |
} |
return $result; |
return $result; |
Line 490 sub start_rectangle {
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Line 500 sub start_rectangle {
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sub grade_rectangle { |
sub grade_rectangle { |
my ($spec,$x,$y) = @_; |
my ($spec,$x,$y) = @_; |
&Apache::lonxml::debug("Spec is $spec"); |
&Apache::lonxml::debug("Spec is $spec"); |
$spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/; |
my ($x1,$y1,$x2,$y2)=($spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/); |
my $x1=$1; |
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my $y1=$2; |
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my $x2=$3; |
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my $y2=$4; |
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&Apache::lonxml::debug("Point $x1,$y1,$x2,$y2"); |
&Apache::lonxml::debug("Point $x1,$y1,$x2,$y2"); |
if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; } |
if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; } |
if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; } |
if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; } |
Line 520 sub end_rectangle {
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Line 526 sub end_rectangle {
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} |
} |
} elsif ($target eq 'edit') { |
} elsif ($target eq 'edit') { |
$result=&Apache::edit::end_table(); |
$result=&Apache::edit::end_table(); |
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} |
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return $result; |
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} |
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sub start_polygon { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
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my $result=''; |
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if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' || |
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$target eq 'analyze') { |
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&Apache::lonxml::startredirection; |
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} elsif ($target eq 'edit') { |
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my $coords=&Apache::lonxml::get_all_text('/polygon',$parser); |
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$result=&Apache::edit::tag_start($target,$token,'Polygon'). |
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&Apache::edit::editline($token->[1],$coords,'Coordinate list',40). |
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&Apache::edit::entercoordpolygon(undef,'textnode'). |
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&Apache::edit::end_row(); |
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} elsif ($target eq "modified") { |
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$result=$token->[4].&Apache::edit::modifiedfield('/polygon',$parser); |
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} |
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return $result; |
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} |
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sub grade_polygon { |
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my ($spec,$x,$y) = @_; |
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&Apache::lonxml::debug("Spec is $spec"); |
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$spec=~s/^polygon://; |
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my @polygon; |
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foreach my $coord (split('-',$spec)) { |
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my ($x,$y)=($coord=~m/\(([0-9]+),([0-9]+)\)/); |
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&Apache::lonxml::debug("x $x y $y"); |
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push @polygon, {'x'=>$x,'y'=>$y}; |
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} |
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#make end point start point |
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push @polygon, $polygon[0]; |
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# cribbed from |
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# http://geometryalgorithms.com/Archive/algorithm_0103/algorithm_0103.htm |
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my $crossing = 0; # the crossing number counter |
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# loop through all edges of the polygon |
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for (my $i=0; $i<$#polygon; $i++) { # edge from V[i] to V[i+1] |
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if ((($polygon[$i]->{'y'} <= $y) |
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&& ($polygon[$i+1]->{'y'} > $y)) # an upward crossing |
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|| |
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(($polygon[$i]->{'y'} > $y) |
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&& ($polygon[$i+1]->{'y'} <= $y))) { # a downward crossing |
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# compute the actual edge-ray intersect x-coordinate |
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my $vt = ($y - $polygon[$i]->{'y'}) |
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/ ($polygon[$i+1]->{'y'} - $polygon[$i]->{'y'}); |
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if ($x < $polygon[$i]->{'x'} + $vt * |
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($polygon[$i+1]->{'x'} - $polygon[$i]->{'x'})) { # x<intersect |
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$crossing++; # a valid crossing of y=P.y right of P.x |
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} |
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} |
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} |
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# 0 if even (out), and 1 if odd (in) |
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if ($crossing%2) { |
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return 'APPROX_ANS'; |
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} else { |
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return 'INCORRECT'; |
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} |
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} |
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sub end_polygon { |
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my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; |
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my $result; |
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if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' || |
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$target eq 'analyze') { |
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my $name = $Apache::imageresponse::curname; |
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my $area = &Apache::lonxml::endredirection; |
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&Apache::lonxml::debug("out is $area for $name"); |
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if ( $Apache::imageresponse::conceptgroup |
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&& !&Apache::response::showallfoils()) { |
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push @{ $Apache::response::conceptgroup{"$name.area"} },"polygon:$area"; |
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} else { |
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push @{ $Apache::response::foilgroup{"$name.area"} },"polygon:$area"; |
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} |
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} elsif ($target eq 'edit') { |
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$result=&Apache::edit::end_table(); |
} |
} |
return $result; |
return $result; |
} |
} |