[reportlab-users] Newbie syntax help

[Christopher Lazzery]

Hi everyone. I'm brand new to Python and ReportLab and I am just trying to find some good tutorials out there to get me started. 

After reading up, I tried to start working with some of the functions to see if I could make something simple.

I was hoping someone could explain some of the parameters in this one function:

def box(flt, center=False):
	box_style = [('BOX', (0, 0), (-1, -1), .5, colors.lightgrey)]
	if center:
		box_style += [('ALIGN', (0, 0), (-1, -1), 'CENTER')]

	return Table([[flt]], style=box_style)

elements = []
styles = getSampleStyleSheet()
doc = SimpleDocTemplate('simplebox.pdf')

elements.append(box(Paragraph("Some Text Goes Here",
	styles['Title'])))
	
doc.build(elements)

Now, that builds a simple string of text with a thin grey box around it, as I'm sure you can tell. I'm confused about the "(0, 0), (-1,-1)" in the box function though. From what I've read, I think those are coordinates, but I have no idea what they do (if they even are coordinates). If I change any of the numbers, the box doesn't move. It disappears. So, what are these parameters? Are they coordinates? I know this seems like a silly question, but neither the User Guide nor any other documentation I have found seems to explain it.

Thanks for any help.
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