how to know current page dimensions

[abubelinha]

I want to define some functions for drawing stuff in current page, just using pdf.line() to loop a list of points with x,y coordinates.
My designs need to be proportional to page size (so I will recalculate coordinates according to that).

Is it possible that I can get page dimensions from inside my function?
(i.e. pdf.get_page_dimensions(), or something like that.

I couldn't find such feature. If it does not exist, I would need to know dimensions in advance and pass them to my function (but I'd prefer not having to be passing around page dimensions, if possible).

def mydrawing(points=[])
    # code to know current page width and page height?
    # pw & ph would be     
    for p in points:
        # code to calculate max and min x,y values of all points in list
    for p in points:
        # point coordinates will be redefined based on max & min x,y values, 
        # so my drawing will be proportional to current page size
        self.line(... whatever ...)

points = [[30,40], [50,60], ...]
pdf.mydrawing(points)

Thanks
@abubelinha

[andersonhc]

fpdf.w = Page width
fpdf.h = Page height
fpdf.epw = Effective page width: the page width minus its horizontal margins.
fpdf.eph = Effective page height: the page height minus its vertical margins.

[abubelinha]

Thanks a lot.

Is this documented somewhere?
I searched for epw in fpdf2 docs but got no results.
Also tried old fpdf docs

[andersonhc]

I don't think it's documented.
Do you want to do it?
I guess Margins would be a good place - it only shows how to set them but not how to get.

[abubelinha]

I am not a git user. I am only used to github web interface.

Do you mean editing it like this?
master...abubelinha:fpdf2:patch-1

I tried to put some links I found for fpdf.epw and fpdf.eph (couldn't find the same for fpdf.w and fpdf.h)
What should I do next? Should I click "create pull request"?

[Lucas-C]

I think we (fpdf2 maintainers) are mostly git command line users, or even users of IDEs with plugins, so we are not used to create PRs through the GitHub web interface 😅

But that's totally doable!

I found some documentation about this there:

• https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request
• https://pixelpioneers.co/blog/2017/using-github-without-the-command-line

And a contribution to better document .w / .h / .epw / .eph would be totally welcome!
Where do you plan to mention them?
I think we just have basic docstrings for .epw & .eph those:

• https://py-pdf.github.io/fpdf2/fpdf/fpdf.html#fpdf.fpdf.FPDF.eph
• https://py-pdf.github.io/fpdf2/fpdf/fpdf.html#fpdf.fpdf.FPDF.epw