將Int值轉換爲角度

我們如何將Int值轉換爲角度。將Int值轉換爲角度

int speed = remoteService.getSpeed();

我收到來自遠程服務的速度值，我想將它轉化成一個角度。

我怎樣才能做到這一點？任何想法？

來源

2012-07-31 Randroid

哪種類型的角度或什麼是角！你有什麼想法嗎？ – 2012-07-31 05:30:33

我在我的程序中有一個車速表，我想根據車速值設置針，如果車速值是30，那麼我應該在車速表中顯示它 – Randroid 2012-07-31 05:33:08

因此，這意味着您需要顯示圖像？（或其他） – 2012-07-31 05:35:33

public void getGenginePos（int state，float force，double AOD）double AODrad =（AOD * 0.017444）;

switch(state){ 
     case BOAT_IDLE: 
       //System.out.println("Before Vx = " + vx + ", vy = " + vy + ", f = " + force + ", AOD = " + AOD); 
       vx = (float)(force * Math.cos(AODrad)); 
       px = px + (vx * dt); 
       vy = (float) (force * Math.sin(AODrad)); 
       //System.out.println("After Vx = " + vx + ", vy = " + vy); 

       py = py - (vy * dt); 

       break; 
     case BOAT_ACCEL: 
       temp = force *dt; 
       vx = (float) (force * Math.cos(AODrad) + temp);//(force * dt)); 
       vy = (float) (force * Math.sin(AODrad) + temp);//(force * dt)); 
       px = px + (vx * dt); 
       py = py - (vy * dt); 
       break; 
     case BOAT_DECEL: 
       temp = force *dt; 
       vx = (float) (force * Math.cos(AODrad) - temp);//(force * dt)); 
       vy = (float) (force * Math.sin(AODrad) - temp);//(force * dt)); 
       px = px + (vx * dt); 
       py = py - (vy * dt); 
       break; 
     default: break; 

    } 
} 

public void setMeterPos(int rpx,int rpy,int epx,int epy){ 
    RefX= rpx; 
    RefY= rpy; 

    EndX = epx; 
    EndY = epy; 

    screenwidth=BoatRider.screenWidth; 
    screenheight=BoatRider.screenHeight; 
} 

public void setArrowEndX(int x){ 
    EndX = x; 
} 
public void setArrowEndY(int y){ 
    EndY = y; 
} 
public float getArrowEndX(){ 
    return EndX; 
} 

public float getArrowEndY(){ 
    return EndY; 
} 

public void getGMeterArrowPos(double AOD,float radius){ 
    double AODrad=(AOD*0.017444); 
    vx=(float)(radius*Math.cos(AODrad)); 
    vy=(float)(radius*Math.sin(AODrad)); 

    float height=screenheight-RefY; 

    EndX = vx+RefX; 
    EndY=screenheight-(vy+height); 

} 

public float getBorderEndX(){ 
    return EndX; 
} 
public float getBorderEndY(){ 
    return EndY; 
} 
public void getGBoatBorderPos(double AOD,float radius,float boderRefX,float boderRefY){ 
    double AODrad=(AOD*0.017444); 
    vx=(float)(radius*Math.cos(AODrad)); 
    vy=(float)(radius*Math.sin(AODrad)); 

    float height=screenheight-boderRefY; 

    EndX = vx+boderRefX; 
    EndY=screenheight-(vy+height); 

}

} 這將是非常有用的

來源

2012-07-31 05:46:07 Ramkumar

非常感謝，我在這裏應該使用哪一段代碼？ – Randroid 2012-07-31 05:48:38

其基本的車速表代碼我在開發遊戲時使用它 – Ramkumar 2012-07-31 05:50:19

int speed = 90; 
double degrees = speed ; 
double angle = degrees * 2 * Math.PI/360.0;

或者你可以使用

int speed = 30; 
double degrees = speed; 
double toDegree = Math.toDegrees(radians);

來源

2012-07-31 05:49:09

這對我有什麼幫助嗎？ – Valentin 2012-07-31 05:53:14

感謝您的回覆，我們如何將此角度設置爲我正在使用的速度計的位圖圖像（針）？這樣針就會根據速度移動 – Randroid 2012-07-31 06:30:58

將Int值轉換爲角度

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