回転するサムネイル一覧（Papervision3D版）。
Papervision3DのText3Dを使用して回転するサムネイルの3D版を制作する。
y座標の値をz座標に置き換えた以外は2D版とほとんど同じ方法で制作する。
SAMPLE VIEW CODE
package {
import flash.display.*;
import flash.events.*;
import org.papervision3d.materials.*;
import org.papervision3d.materials.special.*;
import org.papervision3d.typography.fonts.*;
import org.papervision3d.typography.*;
import org.papervision3d.view.*;
import org.papervision3d.objects.*;
import org.papervision3d.objects.primitives.*;
import org.papervision3d.view.layer.ViewportLayer;
import org.libspark.betweenas3.BetweenAS3;
import org.libspark.betweenas3.events.TweenEvent;
import org.libspark.betweenas3.tweens.*;
import org.libspark.betweenas3.easing.*;
public class view3d extends BasicView {
// ------------------------------------------------------------------------------- Properties
private var _this:Object;
private var _rootdo3d:DisplayObject3D;
// ------------------------------------------------------------------------------- Constractor
public function view3d() {
super(1, 1, true, true, "Free");
_this = this;
}
// ------------------------------------------------------------------------------- Function
/**
* initialize
*/
public function Init():void {
init3dworld();
initcards();
}
/**
* start
*/
public function Start():void {
startRendering();
}
/**
* initialize 3dworld
*/
private function init3dworld():void {
camera.zoom = 11;
camera.focus = 100;
camera.z = -1200;
_rootdo3d = new DisplayObject3D();
_rootdo3d.rotationX = 10;
_rootdo3d.y = -20;
scene.addChild(_rootdo3d);
}
/**
* initialize cards
*/
private var radius:Number;
private var cardslength:int = 20;
private var onestep:Number;
private function initcards():void {
var font = new AdobeGaramondPro();
radius = 360;
onestep = 360 / cardslength;
var nm_gradation = new NM_Gradation();
var cols_1 = nm_gradation.Colors(0xE4007F, 0x00A0E9, 11);
var cols_2 = nm_gradation.Colors(0x00A0E9, 0xE4007F, 11);
cols_1.pop();
cols_2.pop();
var colors = cols_1.concat(cols_2);
for(var i = 0; i < cardslength; i++) {
var _card = new DisplayObject3D();
_card.name = "card_" + (i + 1);
_card.extra = {};
_card.extra.cid = i + 1;
var mat_c = new ColorMaterial(0xFFFFFF, 0);
mat_c.doubleSided = true;
mat_c.interactive = true;
var p = new Plane(mat_c, 100, 100, 1, 1);
p.extra = {};
p.extra.cid = _card.extra.cid;
var pl = p.createViewportLayer(viewport, true);
pl.buttonMode = true;
pl.cacheAsBitmap = true;
pl.addEventListener(MouseEvent.MOUSE_UP, card_click);
_card.addChild(p);
var mat_l = new Letter3DMaterial(colors[i], .9);
mat_l.doubleSided = true;
var t = new Text3D(i + 1, font, mat_l);
t.z = 10;
t.scaleX = -1;
t.scaleY = 1;
var tl = t.createViewportLayer(viewport, true);
tl.mouseEnabled = false;
tl.mouseChildren = false;
_card.addChild(t);
_card.extra.defrot = i * onestep - 90;
_card.extra.startrot = _card.extra.defrot;
_card.extra.moverot = _card.extra.defrot;
_card.x = Math.cos(_card.extra.defrot * Math.PI / 180) * radius;
_card.z = Math.sin(_card.extra.defrot * Math.PI / 180) * radius;
_card.rotationY = -_card.extra.defrot + 90;
_rootdo3d.addChild(_card);
}
}
/** */
private function card_click(eo:* = null) {
var tgtcard = eo.currentTarget.displayObject3D;
moveNum(tgtcard.extra.cid);
}
/**
* card actions
*/
private var currentcid:int = 1;
private var lastcid:int = 1;
private var movecount:int = 0;
/** */
public function moveNext():void {
moveNum(currentcid - 1);
}
/** */
public function moveBack():void {
moveNum(currentcid + 1);
}
/** */
public function moveNum(cid:int):void {
setcid(cid);
setmovecount();
movecards();
}
//
private function setcid(cid:int):void {
if(cid < 1) cid += cardslength;
else if(cid > cardslength) cid -= cardslength;
lastcid = currentcid;
currentcid = cid;
}
//
private function setmovecount():void {
var difference = lastcid - currentcid;
if(Math.abs(difference) > cardslength / 2) {
if(difference < 0) difference = difference + cardslength;
else if(difference > 0) difference = difference - cardslength;
}
movecount += difference;
}
/**
* card moving
*/
private var stepmax = onestep * cardslength;
public function movecards():void {
setmovecards();
movecardsaction();
}
/** */
private function setmovecards():void {
var _card:*;
if(movecount >= cardslength) {
movecount -= cardslength;
for( var i:int = 0; i < cardslength; i++ ) {
_card = _rootdo3d.getChildByName("card_" + (i + 1));
_card.extra.startrot += 360;
}
}
else if(movecount <= 0) {
movecount += cardslength;
for( var j:int = 0; j < cardslength; j++ ) {
_card = _rootdo3d.getChildByName("card_" + (j + 1));
_card.extra.startrot -= 360;
}
}
}
/** */
private function movecardsaction():void {
for( var i:int = 0; i < cardslength; i++ ) {
var _card = _rootdo3d.getChildByName("card_" + (i + 1));
if(_card.extra.moverot > 360) {
_card.extra.moverot -= 360;
_card.extra.startrot -= 360;
}
else if(_card.extra.moverot < 0) {
_card.extra.moverot += 360;
_card.extra.startrot += 360;
}
_card.extra.goalrot = _card.extra.startrot + (movecount * onestep);
if(_card.extra.movetween) _card.extra.movetween.stop();
_card.extra.movetween = BetweenAS3.tween(_card.extra, {moverot:_card.extra.goalrot}, null, .6, Quad.easeOut);
_card.extra.movetween.addEventListener(TweenEvent.UPDATE, movecardsaction_update);
_card.extra.movetween.play();
}
}
/** */
private function movecardsaction_update(eo:* = null):void {
var extra = eo.target.target;
var _card = _rootdo3d.getChildByName("card_" + (extra.cid ));
var tgtrot = extra.moverot;
if(tgtrot >= 360) tgtrot -= 360;
else if(tgtrot <= 0) tgtrot += 360;
_card.x = Math.cos(tgtrot * Math.PI / 180) * radius;
_card.z = Math.sin(tgtrot * Math.PI / 180) * radius;
_card.rotationY = -tgtrot + 90;
}
}
}
