radius 0 stride 1 target exact 1.0 max|d| 0.0  canvas exact 1.0 max|d| 0.0 canvas maxcode 90
radius 2 stride 1 target exact 1.0 max|d| 0.0  canvas exact 1.0 max|d| 0.0 canvas maxcode 89
radius 5 stride 1 target exact 1.0 max|d| 0.0  canvas exact 1.0 max|d| 0.0 canvas maxcode 86
radius 2 stride 2 target exact 1.0 max|d| 0.0  canvas exact 1.0 max|d| 0.0 canvas maxcode 88
radius 5 stride 2 target exact 1.0 max|d| 0.0  canvas exact 1.0 max|d| 0.0 canvas maxcode 85