THPDFBarcodeQuadrilateral

Unit: HPDFDataMatrixGeometry

THPDFBarcodeQuadrilateral= array[0..3] of THPDFBarcodePoint;

Represent the four consecutive corners of a convex raster-space quadrilateral

Detected corners follow the hull clockwise with an unspecified starting corner; sampling expects the corners to be consecutive and convex

The Data Matrix decoder tries rotations and mirrors to find the canonical symbol orientation

Multi-symbol raster barcode scanning