import java.io.*;
import javax.media.opengl.*;
import javax.media.opengl.glu.*;
import com.sun.opengl.util.*;
public class JoglSample34
{
// 出力画像サイズ
private static int width = 300;
private static int height = 300;
public static void main(String args[])
throws IOException
{
GLDrawableFactory gldf =
GLDrawableFactory.getFactory();
GLCapabilities glc = new GLCapabilities();
glc.setDoubleBuffered(false);
GLPbuffer buf = gldf.createGLPbuffer(
glc, null, width, height, null);
buf.addGLEventListener(
new GLEventListener(){
// 初期化
public void init(GLAutoDrawable dr)
{
GL gl = dr.getGL();
// 背景色
gl.glClearColor(
(float)0xff/(float)0xff,
(float)0xff/(float)0xff,
(float)0xff/(float)0xff,
1f);
}
public void display(GLAutoDrawable dr)
{
GL gl = dr.getGL();
GLU glu = new GLU();
gl.glViewport(0, 0, width, height);
// 透視投影
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glLoadIdentity();
float ratio = (float)height/(float)width;
gl.glFrustum(-1.0f, 1.0f, -ratio, ratio,
5.0f, 40.0f);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glTranslatef(0.0f, 0.0f, -7.0f);
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
// ワイヤーフレームの色を設定
gl.glColor3f((float)0x77/(float)0xff,
(float)0x99/(float)0xff,
(float)0xff/(float)0xff);
gl.glPushMatrix();
// X軸回転
gl.glRotatef(45.0f, 1.0f, 0.0f, 0.0f);
// Y軸回転
gl.glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
// 円弧を描画する
GLUquadric gluq = glu.gluNewQuadric();
glu.gluPartialDisk(gluq, 0.0, 1.0, 16, 4, -30, 90);
gl.glPopMatrix();
}
public void reshape(
GLAutoDrawable dr,
int x, int y,
int width, int height){}
public void displayChanged(
GLAutoDrawable dr,
boolean modeChanged,
boolean deviceChanged){}
}
);
GLContext context = buf.createContext(null);
context.makeCurrent();
buf.display();
Screenshot.writeToFile(
new File("sample1192a.png"), width, height, true);
context.release();
context.destroy();
}
}
出力画像(sample1192a.png)
動作環境
JDK6 Upadate13, JOGL 1.1.1
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