Databases
StackOverflow2013
Postsdbo
POcoordinates after zoom in android
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POcoordinates after zoom in android
    primarykey
    data
    text
    <p>I am trying to draw circle after zoom and it's not drawn in correct place. With out zoom it is working fine. Do we need to consider any factors after zoom ? Some thing like scale factor . Radius of the circle also increasing. I need to draw correctly even after zoom also.</p> <pre><code> public boolean onTouch(View v, MotionEvent rawEvent) { WrapMotionEvent event = WrapMotionEvent.wrap(rawEvent); ImageView view = (ImageView) v; view.setScaleType(ImageView.ScaleType.MATRIX); if (isZoomRequired == false) //draw circle when zoom is off. { x = (int) rawEvent.getX(); y = (int) rawEvent.getY(); r = SettingsActivity.brushsize; pcanvas.drawCircle(x, y, r, mPaint); layers[1] = new BitmapDrawable(bitmap); LayerDrawable layerDrawable = new LayerDrawable(layers); view.setImageDrawable(layerDrawable); } else //zoom when zoom is on or button selected { // Handle touch events here... switch (event.getAction() &amp; MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_DOWN: savedMatrix.set(matrix); start.set(event.getX(), event.getY()); Log.d(TAG, "mode=DRAG"); mode = DRAG; break; case MotionEvent.ACTION_POINTER_DOWN: oldDist = spacing(event); Log.d(TAG, "oldDist=" + oldDist); if (oldDist &gt; 10f) { savedMatrix.set(matrix); midPoint(mid, event); mode = ZOOM; Log.d(TAG, "mode=ZOOM"); } break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_POINTER_UP: mode = NONE; Log.d(TAG, "mode=NONE"); break; case MotionEvent.ACTION_MOVE: if (mode == DRAG) { // ... matrix.set(savedMatrix); matrix.postTranslate(event.getX() - start.x, event.getY() - start.y); } else if (mode == ZOOM) { float newDist = spacing(event); Log.d(TAG, "newDist=" + newDist); if (newDist &gt; 10f) { matrix.set(savedMatrix); scale = newDist / oldDist; matrix.postScale(scale, scale, mid.x, mid.y); } } break; } view.setImageMatrix(matrix); } } </code></pre> <p>How to calculate x, y coordinates after zoom in android? and also radius of the circle after zoom. Any help would be appreciated. </p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USpavan
    1. USpavan
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload