java-动态绘制多维数据集时出现问题
作者：互联网
我有一个声明为的float数组camObjCoord.
public static float camObjCoord [] = new float [8000];
然后,我将其索引填充到一个类似以下内容的类中.
public void addcube(float highx, float lowx, float highz, float lowz){
//Constructing new cube...
System.out.println("f = " + f);
Global.cubes++;
float y = 1.5f;
System.out.println("highx = " + highx + "lowx = " + lowx + "highz = " + highz + "lowz = " + lowz);
//FRONT
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = highz;
//BACK
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = lowz;
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = lowz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = lowz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = lowz;
i++;
//LEFT
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = lowz;
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = lowz;
i++;
//RIGHT
camObjCoord[i] = highx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = lowz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = lowz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = highz;
i++;
//TOP
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = y;
i++;
camObjCoord[i] = lowz;
i++;
//BOTTOM
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = lowx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = lowz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = highz;
i++;
camObjCoord[i] = highx;
i++;
camObjCoord[i] = -y;
i++;
camObjCoord[i] = lowz;
i++;
int p = 0;
System.out.println("FULL ARRAY");
while(p < 72){
System.out.println(camObjCoord[p]);
p++;
}
}
然后我打电话给makeview()
public void makeview() {
Intent myIntent = new Intent(this, GLCamTest.class);
Bundle b = new Bundle();
b.putFloatArray("tweets", camObjCoord);
myIntent.putExtras(b);
this.startActivity(myIntent);
}
然后在新课程中…
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Bundle b = this.getIntent().getExtras();
float original[] = b.getFloatArray("tweets");
camObjCoord = original;
counter++;
}
然后,我还有另一个类GLLayer,它的外观如下所示.http://pastebin.org/394884在该类中,我正在从float数组中绘制多维数据集,我已经检查过了,并且确实存在多维数据集的值,当我m在其中编码数组可以工作,但是当我动态构建数组然后将其传递时,立方体无法绘制.我这样叫课.
glView=new GLLayer(this);
mPreview = new CamLayer(this, glView);
有人知道为什么吗？我该如何解决我的问题？只是要补充一点,我在动态绘制时将完全相同的值赋予完全相同的索引
final static float camObjCoord[] = new float[] {
// FRONT
-2.0f, -1.5f, 2.0f,
2.0f, -1.5f, 2.0f,
-2.0f, 1.5f, 2.0f,
2.0f, 1.5f, 2.0f,
// BACK
-2.0f, -1.5f, -2.0f,
-2.0f, 1.5f, -2.0f,
2.0f, -1.5f, -2.0f,
2.0f, 1.5f, -2.0f,
// LEFT
-2.0f, -1.5f, 2.0f,
-2.0f, 1.5f, 2.0f,
-2.0f, -1.5f, -2.0f,
-2.0f, 1.5f, -2.0f,
// RIGHT
2.0f, -1.5f, -2.0f,
2.0f, 1.5f, -2.0f,
2.0f, -1.5f, 2.0f,
2.0f, 1.5f, 2.0f,
// TOP
-2.0f, 1.5f, 2.0f,
2.0f, 1.5f, 2.0f,
-2.0f, 1.5f, -2.0f,
2.0f, 1.5f, -2.0f,
// BOTTOM
-2.0f, -1.5f, 2.0f,
-2.0f, -1.5f, -2.0f,
2.0f, -1.5f, 2.0f,
2.0f, -1.5f, -2.0f,
};
然后它将渲染此多维数据集.似乎不喜欢我先创建数组,然后动态添加索引.为什么？我该如何解决？为了获得奖励,我还将接受一个适用于Android的适当解决方法.
谢谢.
edit1：我尝试过各种事情,如果不是像这样声明数组,那不是数组的传递导致问题.
edit2：我也尝试过将数组放入GLLayer(渲染多维数据集的类)时进行打印,一切都与您期望的一样.我不知道为什么这些立方体不会出现:(
edit3：我已经添加了如何构造float数组.
edit4：我也尝试将数组的大小设置为等于我输入的值的数量.不起作用
解决方法:
我会稍微减少这个问题.如果您要使数组足够大以仅容纳一个多维数据集,并以相同的方式填充它(但仅填充一次),那么它将起作用吗？如果您将它放大到足以容纳两个多维数据集,并为其提供两个多维数据集的数据该怎么办？
标签：opengl-es,floating-point,arrays,java,android 来源： https://codeday.me/bug/20191209/2097839.html