# safeInnerRect property

The non-rounded rectangle that is constrained by the smaller of the two diagonals, with each diagonal traveling through the middle of the curve corners. The middle of a corner is the intersection of the curve with its respective quadrant bisector.

## Implementation

```
Rect get safeInnerRect {
const double kInsetFactor = 0.29289321881; // 1-cos(pi/4)
final double leftRadius = math.max(blRadiusX, tlRadiusX);
final double topRadius = math.max(tlRadiusY, trRadiusY);
final double rightRadius = math.max(trRadiusX, brRadiusX);
final double bottomRadius = math.max(brRadiusY, blRadiusY);
return Rect.fromLTRB(
left + leftRadius * kInsetFactor,
top + topRadius * kInsetFactor,
right - rightRadius * kInsetFactor,
bottom - bottomRadius * kInsetFactor
);
}
```