Re: REPOST: Display and User units, Scaling, Measuring Paths, Importing PDF

Hi Phil

You should be able to change the size of the page with the document
properties dialog (Ctrl+Shift+D).

Once you have resized the page, you might need to resize the imported
graphic using the transform tool (F1) to match your expectations for mm to
m.

-Chris

On Thu, Dec 13, 2018 at 5:18 AM Philip Rhoades <[email protected]> wrote:

> Paul,
>
>
> On 2018-12-13 21:15, PipingDesignCentral wrote:
> > Have you confirmed that the drawing is in fact to scale? Is it
> > possible that the drawing is a reduced copy of the original which was
> > drawn at 1:500?
>
>
> When I use the Visualise->Measure Path Extension it does actually give
> me correct results so I a assuming that the drawing is still correctly
> 1:500 . .
>
> Thanks,
>
> Phil.
>
>
> > Paul
> >
> > On Thu, Dec 13, 2018 at 2:17 AM Philip Rhoades <[email protected]>
> > wrote:
> >
> >> People,
> >>
> >> I didn't get an answer to this a year ago and the problem has come
> >> again
> >> so I thought I would repost to see if I have any more luck with
> >> responses this time:
> >>
> >> If I produce a new drawing on an A4 page with Display and User units
> >> in
> >> mm with a scaling factor of 1.0, I can draw a rectangle of XxY and
> >> when
> >> I use the Visualise->Measure Path Extension with a Scale Factor of
> >> 100
> >> and Length Unit in m - I get exactly the right dimensions for the
> >> rectangle for its perimeter length and area - all good!
> >>
> >> However, I have imported a surveyor's map from a PDF file into
> >> Inkscape
> >> SVG (using defaults) and I need to be able to draw rectangles on it
> >> as
> >> above in mm (like my test) that will correspond to m in the real
> >> world
> >> but the drawing is on an A3 page and I have tried scaling and
> >> everything
> >> else I can think of and Googled a lot but I still can't do what I
> >> was
> >> able to do with my little test case.
> >>
> >> So:
> >>
> >> How can I convert the drawing to be on an A4 page with mm units so
> >> the
> >> mm correspond to m in the real world and the Measure Path Extension
> >> will
> >> give me the correct result in m and sqm?
> >>
> >> The original PDF says the scale was 1:500.
> >>
> >> I am using:
> >>
> >> Inkscape 0.92.3 (2405546, 2018-03-11)
> >>
> >> Thanks,
> >>
> >> Phil.
> >> --
> >> Philip Rhoades
> >>
> >> PO Box 896
> >> Cowra  NSW  2794
> >> Australia
> >> E-mail:  [email protected]
> >>
> >>
> >
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> --
> Philip Rhoades
>
> PO Box 896
> Cowra  NSW  2794
> Australia
> E-mail:  [email protected]
>
>
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