Revision 1f19a4d0
Added by Leszek Koltunski almost 5 years ago
| src/main/java/org/distorted/examples/dynamic/DynamicSpeedSurfaceView.java | ||
|---|---|---|
| 34 | 34 |
class DynamicSpeedSurfaceView extends SurfaceView implements SurfaceHolder.Callback |
| 35 | 35 |
{
|
| 36 | 36 |
private static final int FRAME_INTERVAL = 70; |
| 37 |
private static final int NUM_POINTS = DynamicSurfaceView.NUM_POINTS;
|
|
| 37 |
private static final int NUM_POINTS = 400;
|
|
| 38 | 38 |
|
| 39 | 39 |
private static boolean refreshScreen = true; |
| 40 | 40 |
private GraphicsThread mThread; |
| ... | ... | |
| 42 | 42 |
private int mMode, mNumRedPoints, mPointSize; |
| 43 | 43 |
private float mFontHeight; |
| 44 | 44 |
private Paint mPaint; |
| 45 |
private float[] mPoints = new float[2*NUM_POINTS]; |
|
| 46 |
private int mPosition; |
|
| 45 |
private float[] mPoints = new float[NUM_POINTS]; |
|
| 47 | 46 |
private float mMultiplier; |
| 48 | 47 |
|
| 49 | 48 |
///////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
| 115 | 114 |
super(context,attrs); |
| 116 | 115 |
|
| 117 | 116 |
mNumRedPoints = 0; |
| 118 |
mPosition = 0; |
|
| 119 | 117 |
|
| 120 | 118 |
mPaint = new Paint(); |
| 121 | 119 |
mPaint.setAntiAlias(true); |
| ... | ... | |
| 158 | 156 |
{
|
| 159 | 157 |
mPaint.setColor(0xff007d00); |
| 160 | 158 |
c.drawRect(0, 0, mWidth, mHeight, mPaint); |
| 161 |
mPaint.setColor(0xff000000); |
|
| 162 |
c.drawText( "Speed", mWidth/2, mMargin, mPaint); |
|
| 163 | 159 |
drawAxis(c); |
| 164 | 160 |
drawSpeedGraph(c); |
| 165 | 161 |
drawRedPoints(c); |
| 162 |
mPaint.setColor(0xff000000); |
|
| 163 |
c.drawText( "Speed", mWidth*0.5f, mMargin, mPaint); |
|
| 166 | 164 |
} |
| 167 | 165 |
} |
| 168 | 166 |
|
| ... | ... | |
| 214 | 212 |
private void drawSpeedGraph(Canvas c) |
| 215 | 213 |
{
|
| 216 | 214 |
mPaint.setColor(0xffffffff); |
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float y, highiest=0.0f; |
|
| 215 |
float x,y, highiest=0.0f;
|
|
| 218 | 216 |
|
| 219 | 217 |
for(int i=0; i<NUM_POINTS; i++) |
| 220 | 218 |
{
|
| 221 |
y = mPoints[2*i+1]; |
|
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c.drawCircle( mMargin+mPoints[2*i]*(mWidth-2*mMargin), mHeight-mMargin-mMultiplier*y , mPointSize*0.3f, mPaint ); |
|
| 219 |
x = ((float)(i*(mWidth-2*mMargin)))/NUM_POINTS; |
|
| 220 |
y = mPoints[i]; |
|
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c.drawCircle( mMargin+x, mHeight-mMargin-mMultiplier*y , mPointSize*0.3f, mPaint ); |
|
| 223 | 222 |
|
| 224 | 223 |
if( y>highiest ) highiest = y; |
| 225 | 224 |
} |
| 226 | 225 |
|
| 227 |
mMultiplier = (mHeight-2*mMargin)/highiest;
|
|
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mMultiplier = (mHeight-3*mMargin)/highiest;
|
|
| 228 | 227 |
} |
| 229 | 228 |
|
| 230 | 229 |
/////////////////////////////////////////////////////////////////////////////////////////////////// |
| ... | ... | |
| 239 | 238 |
|
| 240 | 239 |
void clearPoints() |
| 241 | 240 |
{
|
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for(int i=0; i<2*NUM_POINTS; i++)
|
|
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for(int i=0; i<NUM_POINTS; i++) |
|
| 243 | 242 |
{
|
| 244 |
mPoints[i] = -10.0f; |
|
| 243 |
mPoints[i] = -100.0f;
|
|
| 245 | 244 |
} |
| 246 | 245 |
refreshScreen = true; |
| 247 | 246 |
} |
| ... | ... | |
| 250 | 249 |
|
| 251 | 250 |
void addPoint(float x, float y) |
| 252 | 251 |
{
|
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mPoints[2*mPosition ] =x; |
|
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mPoints[2*mPosition+1] =y; |
|
| 255 |
|
|
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if ( ++mPosition >= NUM_POINTS ) mPosition=0; |
|
| 257 |
|
|
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refreshScreen = true; |
|
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if( x>=0.0f && x<=1.0f ) |
|
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{
|
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int pos = (int)((NUM_POINTS-1)*x); |
|
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mPoints[pos] =y; |
|
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refreshScreen = true; |
|
| 257 |
} |
|
| 258 |
else |
|
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{
|
|
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android.util.Log.e("speed", "ERROR adding new Speed Point, x="+x);
|
|
| 261 |
} |
|
| 259 | 262 |
} |
| 260 | 263 |
|
| 261 | 264 |
/////////////////////////////////////////////////////////////////////////////////////////////////// |
Also available in: Unified diff
Improve the Dynamic app.