这是我的类文件，用于加载3d模型。我正在使用jpct lib加载3d对象。我想将夹点缩放应用到GLSurfaceView可以任何人告诉我该怎么办？我没有找到任何缩放的代码/代码..
public class Model extends Activity {
// Used to handle pause and resume...
private static Model master = null;
ProgressDialog pDialog;
private GLSurfaceView mGLView;
private MyRenderer renderer = null;
private FrameBuffer fb = null;
static World world = null;
// private RGBColor back = new RGBColor(0, 50, 100);
Connection_Detector cd = new Connection_Detector(this);
private float touchTurn = 0;
private float touchTurnUp = 0;
private float xpos = -1;
private float ypos = -1;
private Object3D cube = null;
private int fps = 0;
private Light sun = null;
Camera mCamera;
SurfaceView mPreview;
String company, model, pid, reponse;
TextView name;
RelativeLayout call, info, email, tryit;
private AsyncTask<Void, Void, Void> details;
boolean IsInternetPresent;
TextureManager tm;
SharedPreferences atPrefs;
ProgressBar pb;
ScaleGestureDetector mScaleDetector;
protected void onCreate(Bundle savedInstanceState) {
Logger.log("onCreate");
if (master != null) {
copy(master);
}
super.onCreate(savedInstanceState);
setContentView(R.layout.model);
Bundle bundle = getIntent().getExtras();
ActionBar ab = getActionBar();
ab.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#f9564b")));
ab.setDisplayHomeAsUpEnabled(true);
atPrefs = PreferenceManager.getDefaultSharedPreferences(Model.this);
mGLView = (GLSurfaceView) findViewById(R.id.glsurfaceview);
mGLView.setZOrderOnTop(true);
mScaleDetector = new ScaleGestureDetector(getApplicationContext(),
new ScaleListener());
// set bg
mGLView.setEGLConfigChooser(8, 8, 8, 8, 16, 0);
mGLView.getHolder().setFormat(PixelFormat.RGBA_8888);
renderer = new MyRenderer();
mGLView.setRenderer(renderer);
pb = (ProgressBar) findViewById(R.id.progressBar1);
// pb.setVisibility(View.VISIBLE);
name = (TextView) findViewById(R.id.name);
call = (RelativeLayout) findViewById(R.id.callrel);
info = (RelativeLayout) findViewById(R.id.inforel);
email = (RelativeLayout) findViewById(R.id.emailrel);
tryit = (RelativeLayout) findViewById(R.id.tryel);
name.setText(company + " " + model);
call.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
}
});
email.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
}
});
info.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
}
});
tryit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
}
});
}
// public Model() {
// // TODO Auto-generated constructor stub
// mScaleDetector = new ScaleGestureDetector(getApplicationContext(),
// new ScaleListener());
@Override
protected void onPause() {
super.onPause();
mGLView.onPause();
}
@Override
protected void onResume() {
super.onResume();
mGLView.onResume();
}
@Override
protected void onStop() {
super.onStop();
}
private void copy(Object src) {
try {
Logger.log("Copying data from master Activity!");
Field[] fs = src.getClass().getDeclaredFields();
for (Field f : fs) {
f.setAccessible(true);
f.set(this, f.get(src));
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private class ScaleListener extends
ScaleGestureDetector.SimpleOnScaleGestureListener {
@Override
public boolean onScale(ScaleGestureDetector detector) {
float mScaleFactor = detector.getScaleFactor();
// Don't let the object get too small or too large.
mScaleFactor = Math.max(1.0f, Math.min(mScaleFactor, 10.0f));
// pass it to your renderer
renderer.setZoom(mScaleFactor);
Log.d("SCALE", Float.toString(mScaleFactor));
return true;
}
}
public boolean onTouchEvent(MotionEvent me) {
mScaleDetector.onTouchEvent(me);
// if (me.getAction() == MotionEvent.ACTION_DOWN) {
// xpos = me.getX();
// ypos = me.getY();
// return true;
// }
//
// if (me.getAction() == MotionEvent.ACTION_UP) {
// xpos = -1;
// ypos = -1;
// touchTurn = 0;
// touchTurnUp = 0;
// return true;
// }
//
// if (me.getAction() == MotionEvent.ACTION_MOVE) {
// float xd = me.getX() - xpos;
// float yd = me.getY() - ypos;
//
// xpos = me.getX();
// ypos = me.getY();
//
// touchTurn = xd / -100f;
// touchTurnUp = yd / -100f;
// return true;
// }
try {
Thread.sleep(15);
} catch (Exception e) {
}
return super.onTouchEvent(me);
}
protected boolean isFullscreenOpaque() {
return true;
}
class MyRenderer implements GLSurfaceView.Renderer {
private long time = System.currentTimeMillis();
public MyRenderer() {
}
public void onSurfaceChanged(GL10 gl, int w, int h) {
if (fb != null) {
fb.dispose();
}
fb = new FrameBuffer(gl, w, h);
if (master == null) {
world = new World();
world.setAmbientLight(20, 20, 20);
sun = new Light(world);
sun.setIntensity(250, 250, 250);
File sdRoot = Environment.getExternalStorageDirectory();
File imgFile = new File(sdRoot + "/folder/1.obj");
InputStream inputStream = null;
try {
inputStream = new FileInputStream(file);
} catch (FileNotFoundException e1) {
e1.printStackTrace();
}
File imgFile = new File(sdRoot + "/folder/1.jpg");
cube = Object3D.mergeAll(Loader.loadOBJ(inputStream, null, 5f));
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile
.getAbsolutePath());
tm = TextureManager.getInstance();
Texture test = new Texture(myBitmap);
tm.addTexture("text", test);
// load text
TextureInfo ti = new TextureInfo(TextureManager.getInstance()
.getTextureID("text"));
cube.setTexture(ti);
cube.build();
cube.strip();
myBitmap.recycle();
world.addObject(cube);
//
Camera cam = world.getCamera();
cam.moveCamera(Camera.CAMERA_MOVEOUT, 50);
cam.lookAt(cube.getTransformedCenter());
// runOnUiThread(new Runnable() {
// @Override
// public void run() {
//
// pb.setVisibility(View.GONE);
//
// }
// });
SimpleVector sv = new SimpleVector();
sv.set(cube.getTransformedCenter());
sv.y -= 100;
sv.z -= 100;
sun.setPosition(sv);
MemoryHelper.compact();
if (master == null) {
Logger.log("Saving master Activity!");
master = Model.this;
}
}
}
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
}
public void onDrawFrame(GL10 gl) {
if (touchTurn != 0) {
cube.rotateY(touchTurn);
touchTurn = 0;
}
if (touchTurnUp != 0) {
cube.rotateX(touchTurnUp);
touchTurnUp = 0;
}
// fb.clear(back);
world.renderScene(fb);
world.draw(fb);
fb.display();
if (System.currentTimeMillis() - time >= 1000) {
Logger.log(fps + "fps");
fps = 0;
time = System.currentTimeMillis();
}
fps++;
}
public void setZoom(float scale) {
cube.setScale(scale);
}
}
@Override
public void onBackPressed() {
Intent back = new Intent(getApplicationContext(), HomeScreen.class);
startActivity(back);
// reset 3d model data and text
master = null;
tm.removeTexture("text");
finish();
super.onBackPressed();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}xml file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.opengl.GLSurfaceView
android:id="@+id/glsurfaceview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" >
</android.opengl.GLSurfaceView>
答案 0 :(得分：0)
在ImageTarget.java上使用scale listener
//imageTragets.java
ImageTarget()
{
ScaleGestureDetector mScaleDetector = new ScaleGestureDetector(getApplicationContext(), new ScaleListener());
}
//in onTouch function
onTouch()
{
mScaleDetector.onTouchEvent(event);
}
private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {
@Override
public boolean onScale(ScaleGestureDetector detector) {
float mScaleFactor *= detector.getScaleFactor();
// Don't let the object get too small or too large.
mScaleFactor = Math.max(1.0f, Math.min(mScaleFactor, 4.0f));
//pass it to your renderer
Renderer.setZoom(mScaleFactor);
Log.d("SCALE",Float.toString(mScaleFactor));
return true;
}
}
获取ImageTargetsRenderer.java中的float值并将其设置为对象
public void setZoom(float scale)
{
obj.setScale(scale);
}
多数民众赞成你可以放大和缩小对象..希望这是你想要的......
答案 1 :(得分：0)
imageTarget.java - 是agument类。 imagetargetRender.java - 它是渲染器
我使用这些类名，所以我给他们了..
对于上面的示例，HelloWorld.java是imageTarget.java，而MyRenderer.java是imageTargetRenderer.java