Hi,
The problem is that I need an actual PDF to see whether these
"dimensions" exist as a dictionary somewhere (there are so many "exotic"
PDF features). If this is just a vector graphic then we can't fetch it
without OCR or pattern recognition.
I thought it had to do with viewports but now I think that isn't. A file
with it is in this question:
https://stackoverflow.com/questions/47772334/how-do-i-extract-viewport-from-a-pdf-and-modify-an-annotations-bounding-rectang
Tilman
Am 20.03.2019 um 15:39 schrieb Greg Hanowski:
That's just an example to help people understand what a dimension is
and what I'm trying to accomplish. The real pdf drawings are
proprietary so can't show them. But they will not be screen shots.
They will be PDF drawings generated by the CAD (Computer Aided Design)
systems.
Greg
On 3/20/2019 1:45 AM, Tilman Hausherr wrote:
That's just an image in a PDF. No way to find that dimension
programmatically (one could use OCR, with all the difficulties)
Tilman
Am 19.03.2019 um 22:18 schrieb Greg Hanowski:
Ok, I've uploaded it to here:
http://www.tekknow.net/MoneyMachine/drawing.pdf
I want to be able to programmatically zoom up on the "4 +/- 0.2"
dimension, for example, highlight it in some way (Put a transparent
yellow over it, or change the color of it), then create an image
file of the zoomed up view.
On 3/19/2019 2:35 PM, Tilman Hausherr wrote:
Hi,
nothing attached, you need to upload it somewhere. It would be
useful to have the PDF too. If you can't share it, then please
create a dummy. Btw I don't have Adobe Professional, only the reader.
Tilman
Am 19.03.2019 um 21:29 schrieb Greg Hanowski:
I've pasted a screenshot of an engineering drawing. Dimensions
are the numbers that define distances between two points. I want
to be able to programmatically zoom up on the 12.000 dimension,
for example, highlight it in some way (Put a transparent yellow
over it, or change the color of it), then an image file of the
zoomed up view.
**
On 3/19/2019 1:33 AM, Tilman Hausherr wrote:
Am 18.03.2019 um 22:40 schrieb Greg Hanowski:
We get pdf engineering drawings from suppliers. We need to
programmatically zoom up on a specified dimension, highlight it,
and create an image file of the zoomed up view. How to specify
the dimension is unknown. Some dimensions might have the same
text so not sure how to differentiate. Suggestions welcome. Can
pdfbox do this?
With "dimension" do you mean a rectangle coordinate or this
viewport thing? (An exotic feature of PDF)
"Zoom up" - do you want to make it bigger? Or do you just mean to
cut it out?
Highlight = ? Put a yellow over it?
It is possible to crop on a specific area by modifying the
cropbox of a page, then only the cropped area will be seen. It's
also possible to highlight by filling a rectangle and blending
this on top.
Tilman
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