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Default Adjustments

An adjustment is specified by a mode and a delta. Mode defines the way of the distortion, delta defines the amount. The following modes are available:

  • Parallelogram
  • Trapezoid
  • Pin balance
  • Pincushion
  • Shift
  • Width
  • Height
  • Rotation (around bitmap image center point)

For each reference point and corresponding shift vector, the adjustment is computed and applied. The resulting shift vector is again cached in the warping library. This way of implementation allows incremental adjustments.


Following are tables detailing supported adjustments:

Mode
Direction		 Trapezoid Parallelogram Pincushion Pin balance
Up
warping_trapezoid_up.png
warping_parallelogram_up.png

warping_pincushion_up.png

warping_pinbalance_up.png


Down		 warping_trapezoid_down.png

warping_pinbalance_down.png

warping_pincushion_down.png

warping_pinbalance_down.png
Left

warping_shift_left.png

warping_pinbalance_left.png

warping_pincushion_left.png

warping_pinbalance_left.png
Right

warping_shift_right.png

warping_pinbalance_right.png

warping_pincushion_right.png

warping_pinbalance_right.png
Mode
Direction		 Height Width Rotation Shift
Up

warping_height_up.png

warping_width_up.png

warping_shift_up.png
Down

warping_height_down.png

warping_shift_down.png
Left

warping_height_left.png

warping_rotation_left.png

warping_shift_left.png
Right

warping_height_right.png
warping_rotation_right.png

warping_shift_right.png
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