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# SWFDisplayItem->rotateTo

(no version information, might be only in CVS)

SWFDisplayItem->rotateTo -- Rotates the object in global coordinates

## Description

void swfdisplayitem->rotateto ( float degrees )

Warning
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.

swfdisplayitem->rotateto() set the current object rotation to degrees degrees in global coordinates.

The object may be a swfshape(), a swfbutton(), a swftext() or a swfsprite() object. It must have been added using the swfmovie->add().

This example bring three rotating string from the background to the foreground. Pretty nice.

Example 1. swfdisplayitem->rotateto() example
`<?php $thetext = "ming!"; $f = new SWFFont("Bauhaus 93.fdb"); $m = new SWFMovie(); $m->setRate(24.0); $m->setDimension(2400, 1600); $m->setBackground(0xff, 0xff, 0xff); // functions with huge numbers of arbitrary // arguments are always a good idea! Really! function text($r, $g, $b, $a, $rot, $x, $y, $scale, $string) { global $f, $m; $t = new SWFText(); $t->setFont($f); $t->setColor($r, $g, $b, $a); $t->setHeight(960); $t->moveTo(-($f->getWidth($string))/2, $f->getAscent()/2); $t->addString($string); // we can add properties just like a normal PHP var, // as long as the names aren't already used. // e.g., we can't set $i->scale, because that's a function $i = $m->add($t); $i->x = $x; $i->y = $y; $i->rot = $rot; $i->s = $scale; $i->rotateTo($rot); $i->scale($scale, $scale); // but the changes are local to the function, so we have to // return the changed object. kinda weird.. return $i; } function step($i) { $oldrot = $i->rot; $i->rot = 19*$i->rot/20; $i->x = (19*$i->x + 1200)/20; $i->y = (19*$i->y + 800)/20; $i->s = (19*$i->s + 1.0)/20; $i->rotateTo($i->rot); $i->scaleTo($i->s, $i->s); $i->moveTo($i->x, $i->y); return $i; } // see? it sure paid off in legibility: $i1 = text(0xff, 0x33, 0x33, 0xff, 900, 1200, 800, 0.03, $thetext); $i2 = text(0x00, 0x33, 0xff, 0x7f, -560, 1200, 800, 0.04, $thetext); $i3 = text(0xff, 0xff, 0xff, 0x9f, 180, 1200, 800, 0.001, $thetext); for ($i=1; $i<=100; ++$i) { $i1 = step($i1); $i2 = step($i2); $i3 = step($i3); $m->nextFrame(); } header('Content-type: application/x-shockwave-flash'); $m->output(); ?>`

See also swfdisplayitem->rotate().

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