/**
* This test constructs a two sets of variables related to each
* other by a simple linear transformation (scale and offset). The
* time is measured to change a variable on either side of the
* mapping and to change the scale and offset factors.
*/
function projectionTest($n)
{
global $planner;
$planner = new Planner();
$scale = new Variable("scale", 10);
$offset = new Variable("offset", 1000);
$src = null;
$dst = null;
$dests = new OrderedCollection();
for ($i = 0; $i < $n; $i++) {
$src = new Variable("src{$i}", $i);
$dst = new Variable("dst{$i}", $i);
$dests->add($dst);
new StayConstraint($src, Strength::Normal());
new ScaleConstraint($src, $scale, $offset, $dst, Strength::Required());
}
change($src, 17);
if ($dst->value != 1170) {
alert("Projection 1 failed");
}
change($dst, 1050);
if ($src->value != 5) {
alert("Projection 2 failed");
}
change($scale, 5);
for ($i = 0; $i < $n - 1; $i++) {
if ($dests->at($i)->value != $i * 5 + 1000) {
alert("Projection 3 failed");
}
}
change($offset, 2000);
for ($i = 0; $i < $n - 1; $i++) {
if ($dests->at($i)->value != $i * 5 + 2000) {
alert("Projection 4 failed");
}
}
}
function projectionTest($n)
{
global $planner;
$planner = new Planner();
$scale = new Variable("scale", 10);
$offset = new Variable("offset", 1000);
$src = null;
$dst = null;
$dests = new OrderedCollection();
for ($i = 0; $i < $n; ++$i) {
$src = new Variable("src" . $i, $i);
$dst = new Variable("dst" . $i, $i);
$dests->add($dst);
new StayConstraint($src, $GLOBALS['NORMAL']);
new ScaleConstraint($src, $scale, $offset, $dst, $GLOBALS['REQUIRED']);
}
change($src, 17);
if ($dst->value != 1170) {
echo "Projection test 1 failed!";
}
change($dst, 1050);
if ($src->value != 5) {
echo "Projection test 2 failed!";
}
change($scale, 5);
for ($i = 0; $i < $n - 1; ++$i) {
if ($dests->at($i)->value != $i * 5 + 1000) {
echo "Projection test 3 failed!";
}
}
change($offset, 2000);
for ($i = 0; $i < $n - 1; ++$i) {
if ($dests->at($i)->value != $i * 5 + 2000) {
echo "Projection test 4 failed!";
}
}
}
