second property in rect which is -1

[AvivEsh]

I have notices that when looking at the following path:

'items': [('re', Rect(380.8199768066406, 341.70001220703125, 381.239990234375, 354.4800109863281), -1), ('l', Point(381.239990234375, 354.4800109863281), Point(368.4599914550781, 341.70001220703125))], 'type': 's', 'stroke_opacity': 1.0, 'color': (0.0, 0.0, 0.0), 'width': 0.36000001430511475, 'lineCap': (1, 1, 1), 'lineJoin': 1.0, 'closePath': False, 'dashes': '[] 0', 'rect': Rect(368.4599914550781, 341.70001220703125, 381.239990234375, 354.4800109863281), 'layer': '', 'seqno': 8, 'fill': None, 'fill_opacity': None, 'even_odd': None

I cannot see the diagonal line defined above in programs such as acrobat reader.
But I do see it in illustrator for example.
I have a big suspicion that the culprit is the -1 after the 're' rectangle object. The question is that exactly does this '-1' property mean and how can I save the path as it is? because when I try to save the path, the -1 becomes 1.
Any help would be much appreciated.

[JorjMcKie]

The -1 means that the rectangle has been drawn clockwise, giving its area a marker that is important only for coloring (even-odd rule, non-zero winding rule). The standard is 1 = anticlockwise drawing, starting and stopping at the rectangle's top-right corner.
If you want to redraw such a thing, do not use .draw_rect() but draw each rectangle edge as a line, in the sequence (tl, tr), (tr, br), (br, bl), (bl, tr).