我正在使用Java中的LibGDX编写程序,我希望每隔10帧用屏幕上的新像素更新屏幕。我尝试过使用像素图,但似乎无法正常工作。这是我的代码:
package com.mhsjlw.heat;
import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Pixmap.Format;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
public class Heat extends ApplicationAdapter {
SpriteBatch batch;
Texture img;
private OrthographicCamera camera;
FlirClient flir = new FlirClient("x.x.x.x.x", 2525);
int[] palette = FlirPalette.IRONBOW_PALETTE;
byte[] frame = new byte[4800];
@Override
public void create() {
flir.run();
camera = new OrthographicCamera();
camera.setToOrtho(false, 80, 60);
Pixmap pixmap = new Pixmap( 80, 60, Format.RGB888);
pixmap.drawPixel(1, 1);
}
@Override
public void render() {
camera.update();
Pixmap pixmap = new Pixmap( 80, 60, Format.RGB888);
while(true) {
frame = flir.getFrame();
for (int row=0; row<60; row++) {
for (int col=0; col<0; col++) {
int ndx = row * 80 + col;
pixmap.drawPixel(col, row, FlirPalette.getRgb888(frame[ndx], palette));
}
}
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
每当我运行它时,它只会返回一个黑屏。提前谢谢。
答案 0 :(得分:3)
您的代码存在问题:while(true)
中有render
但break
但Pixmap
没有。{/ p>
但这不是唯一的问题。您正在向Pixmap
绘制像素,但您永远不会渲染Texture
本身。您需要从Pixmap
:
package com.mhsjlw.heat;
import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Pixmap.Format;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
public class Heat extends ApplicationAdapter {
private SpriteBatch batch;
private Texture img;
private OrthographicCamera camera;
private FlirClient flir = new FlirClient("69.165.165.194", 2525);
private int[] palette = FlirPalette.IRONBOW_PALETTE;
private byte[] frame = new byte[4800];
@Override
public void create() {
flir.run();
camera = new OrthographicCamera();
camera.setToOrtho(false, 80, 60);
batch = new SpriteBatch();
//this is useless here
Pixmap pixmap = new Pixmap( 80, 60, Format.RGB888);
pixmap.drawPixel(1, 1);
}
@Override
public void render() {
camera.update();
Pixmap pixmap = new Pixmap( 80, 60, Format.RGB888);
while(true) { //add a condition!
frame = flir.getFrame();
for (int row=0; row<60; row++) {
for (int col=0; col<0; col++) {
int ndx = row * 80 + col;
pixmap.drawPixel(col, row, FlirPalette.getRgb888(frame[ndx], palette));
}
}
img = new Texture(pixmap); //create Texture from Pixmap
pixmap.dispose(); //do not leak memory
batch.begin();
batch.draw(img, 100, 100); //draw pixmap texture
batch.end();
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
private
我已经评论了我已经更改过的内容(除了课程开头的while
修饰符),但是代码的一些有问题的部分保持不变。
你应该为你的Pixmap
循环添加一个条件,它目前是无限的。
此外,每次运行代码时都不应该创建新的crypto:start/0
,这不仅设计糟糕而且浪费。
如果我遗漏了任何内容,我会更新我的答案。