Difference between revisions of "GeoGebraApplets"
| Line 320: | Line 320: | ||
</code> |
</code> |
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<pre> |
<pre> |
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| − | <param name="image" |
+ | <param name="image" |
| + | value="http://www.geogebra.org/webstart/loading.gif" /> |
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<param name="boxborder" value="false" /> |
<param name="boxborder" value="false" /> |
||
<param name="centerimage" value="true" /> |
<param name="centerimage" value="true" /> |
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<param name="java_arguments" value="-Xmx512m" /> |
<param name="java_arguments" value="-Xmx512m" /> |
||
| − | <param name="cache_archive" value="geogebra.jar, |
+ | <param name="cache_archive" value="geogebra.jar, |
| − | + | geogebra_main.jar, geogebra_gui.jar, geogebra_cas.jar, |
|
| + | geogebra_export.jar, geogebra_properties.jar" /> |
||
| + | <param name="cache_version" value="3.2.41.0, 3.2.41.0, |
||
| + | 3.2.41.0, 3.2.41.0, 3.2.41.0, 3.2.41.0" /> |
||
<param name="framePossible" value="false" /> |
<param name="framePossible" value="false" /> |
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<param name="showResetIcon" value="false" /> |
<param name="showResetIcon" value="false" /> |
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Revision as of 00:52, 7 November 2010
Your title here: PG Code Snippet
This PG code shows how to write WebWork questions with interactive GeoGebra applets.
| PG problem file | Explanation |
|---|---|
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "unionTables.pl", "AppletObjects.pl", "PGcourse.pl", ); $showPartialCorrectAnswers = 1; TEXT(beginproblem()); |
Initialization:
We need to include the macro file |
Context("Numeric")->variables->are(t=>"Real");
$a = random(2,4,1);
$b = random(5,8,1);
$c = random(1,3,1);
$d = random(1,3,1);
while ($c == $d) { $d = random(1,3,1); }
# $f = Formula("$c / (1+(t-2)^2) + $d / (1+(t-4)^2)");
$F = Formula("$c * arctan(t-2) + $d * arctan(t-4)
- $c * arctan(-2) - $d * arctan(-4)");
$Fa = $F->eval(t=>$a);
$Fb = $F->eval(t=>$b);
$disp = $Fb-$Fa;
|
Setup:
The GeoGebra applet displays a graph of
We define the accumulation function |
$appletName = "ggbApplet";
$applet = JavaApplet(
code => "geogebra.GeoGebraApplet",
archive => "geogebra.jar",
codebase => findAppletCodebase("geogebra.jar"),
appletName => $appletName,
appletId => $appletName,
submitActionAlias => 'getXML', # default getXML
initializeActionAlias => 'setXML', # default setXML
setStateAlias => 'setXML',
getStateAlias => 'getXML',
setConfigAlias => '',
getConfigAlias => '',
returnFieldName => '',
width => 486,
height => 306,
mayscript => "true",
# 0 = no debug, 1 = xml visible, 2 = add alerts thru applet
debugMode => 0,
onInit => 'ggbOnInit',
type => 'geogebra',
# paste parameters in section at the bottom
parameter_string => GEOGEBRA_PARAMS(),
);
|
GeoGebra Applet Setup:
We use
Since the GeoGebra parameters can be very lengthy, at the end of the PG file we put a new
method called |
$im = image( "graph-c".$c."-d".$d.".png", width=>486, height=>306, tex_size=>900 ); |
PNG Picture Setup:
For each of the six ordered pairs |
HEADER_TEXT(
qq!
<script language="javascript">
function ggbOnInit(param) {
if (param == "$appletName") {
applet_loaded(param,1); // report that applet is ready.
ww_applet_list[param].safe_applet_initialize(2);
}
}
</script>
<noscript>For this question to work properly,
you must enable JavaScript, or use another browser
(or computer) on which JavaScript works.</noscript>
!);
|
JavaScript Setup for Persistence of State: For the state of the GeoGebra applet to remain the same when answers are submitted or the page is refreshed, we need a little JavaScript. GeoGebra can interact with other things, like WebWork, by using its JavaScript methods GeoGebra_JavaScript_Methods. |
TEXT( MODES(TeX=>'', HTML=><<END_SCRIPT ) );
<script language="javascript">
function setAppletCoefficients() {
var applet=getApplet("$appletName"); // alert("Updating coefficients");
if (typeof(applet)!="undefined") {
if (typeof(applet.setValue)!="undefined") {
////////////////////////////////////////////////////////////////
// List the values of the parameters to be set in the applet here
// Set variables "c" and "d" in GeoGebra to values $c and $d from WebWork
applet.setValue("c", $c);
applet.setValue("d", $d);
} else {
setTimeout("setAppletCoefficients()", 1000);
}
} else {
setTimeout("setAppletCoefficients()",1000);
}
}
ww_applet_list["$appletName"].setConfig = function() {setAppletCoefficients()};
</script>
END_SCRIPT
|
JavaScript Setup for Initial State:
We use JavaScript methods to set the values of the
variables |
Context()->texStrings;
BEGIN_TEXT
\{
ColumnTable(
"The figure shows an interactive graph of velocity \( v(t) \). You can
change the value of \( t \) in the graph by clicking and dragging
the red dot along the horizontal \( t \)-axis.
$BR
$BR
(a) What is the displacement of the object between \( t = 0 \)
and \( t = $a \)?
$BR".
ans_rule(20).
"$BR
$BR
(b) What is the displacement of the object between \( t = 0 \)
and \( t = $b \)?
$BR".
ans_rule(20).
"$BR
$BR
(c) What is the displacement of the object between \( t = $a \)
and \( t = $b \)?
$BR".
ans_rule(20)
,
$BCENTER.
MODES(HTML=>$applet->insertAll(
debug=>0, reinitialize_button=>0, includeAnswerBox=>0,), TeX=>$im).
$PAR.
"Graph of velocity \( y = v(t) \)".
$ECENTER
,
indent => 0, separation => 30, valign => "TOP"
);
\}
END_TEXT
Context()->normalStrings;
|
Main Text:
The problem text section of the file is mostly as we'd expect.
We make use of a |
ANS( Real($Fa) ->cmp(tolerance=>0.11, tolType=>'absolute') ); ANS( Real($Fb) ->cmp(tolerance=>0.11, tolType=>'absolute') ); ANS( Real($disp)->cmp(tolerance=>0.21, tolType=>'absolute') ); |
Answer Evaluation: Standard. |
sub GEOGEBRA_PARAMS {
$result = qq{
# For persistence of applet state when answers are submitted
<param name="ggbOnInitParam" value="$appletName"/>
<param name="image"
value="http://www.geogebra.org/webstart/loading.gif" />
<param name="boxborder" value="false" />
<param name="centerimage" value="true" />
<param name="java_arguments" value="-Xmx512m" />
<param name="cache_archive" value="geogebra.jar,
geogebra_main.jar, geogebra_gui.jar, geogebra_cas.jar,
geogebra_export.jar, geogebra_properties.jar" />
<param name="cache_version" value="3.2.41.0, 3.2.41.0,
3.2.41.0, 3.2.41.0, 3.2.41.0, 3.2.41.0" />
<param name="framePossible" value="false" />
<param name="showResetIcon" value="false" />
<param name="showAnimationButton" value="true" />
<param name="enableRightClick" value="false" />
<param name="errorDialogsActive" value="true" />
<param name="enableLabelDrags" value="false" />
<param name="showMenuBar" value="false" />
<param name="showToolBar" value="false" />
<param name="showToolBarHelp" value="false" />
<param name="showAlgebraInput" value="false" />
<param name="allowRescaling" value="true" />
};
}
COMMENT('MathObject version. Uses GeoGebra applet.');
ENDDOCUMENT();
|
GeoGebra Applet Parameters:
When you export your GeoGebra drawing pad via File -> Export ->> Dynamic worksheet as Webpage (html), you get an html file with source code you can paste directly in here below the commented line |
- POD documentation: nameOfMacro.pl.html
- PG macro: nameOfMacro.pl
