Remove_rotation() feature about pymupdf HOT 5 CLOSED

Let me have the PDF please. This is required for following up

from pymupdf.

I don't understand what the problem is that you are reporting here.
Please re-assess the situation as follows:

1. Load the page, page = doc[page_no]
2. Execute page.remove_rotation()
3. Now extract stuff from the page, for instance text or drawings, or insert text, drawings or images.

If the behavior in point 3 is not as expected, only then we have a bug.

from pymupdf.

Clear explanation about the problem

Below code load the pdf input and use the get_drawings() feature to extract the width of the item.
(orientation of this input is 90 degree)

doc = fitz.open(pdf_path)

orientation = doc[page_num].rotation
print("orientation ---", orientation)

for page_num in range(doc.page_count):
    page = doc[page_num]
    drawing_list=page.get_drawings()
    
for item in drawing_list[:15]:
    print(item['width'])

output:

Below code load the pdf input , remove_rotation() remove the orientation of the input from 90 to 0 and use the get drawings feature to extract the width of the item.

doc = fitz.open(pdf_path)

for page_num in range(0,doc.page_count):
        doc[page_num].remove_rotation()

doc[page_num].rotation

for page_num in range(doc.page_count):
    page = doc[page_num]
    drawing_list=page.get_drawings()
    
for item in drawing_list[:15]:
    print(item['width'])

output:

The problem is here , input pdf's used for both code is same, but item width is none or 0 for all. I have just printed 15 items in drawing_list, but it gives output 0 for all item width's when I use remove_rotation() feature.

Queries

1. why this item width's are none for everything? (i perfomed some operations using this item width's , but it gave none for all items)
2. i have used pymupdf version 1.24.3, is this version problem?

or else
3. can you suggest any other feature in pymupdf? ( I don't want to rotate the page, i want to change the orientation of the page and respective coordinates of the page according to orientation change. Consider proper orientations are 0, 90,180,270)

from pymupdf.

There is a input pdf.

Grace manor-mid rise floor and columnschedule.pdf

Please suggest me any other way or solve issue in this feature, because remove_rotation() features works fine but it provide's item width none or 0, it is necessary for my future operations in pdf.

from pymupdf.

I checked the results of page.remove_rotation(), and it does behave as expected.
I can't I really understood your problem.
But please be aware, that the results of page.get_drawings() with the rotated versus the derotated page may differ significantly. For example the first path of original page 0 (90° rotated) is this:

{'closePath': None,
 'color': None,
 'dashes': None,
 'even_odd': False,
 'fill': (1.0, 1.0, 1.0),
 'fill_opacity': 1.0,
 'items': [('re', Rect(938.3999633789062, 1509.5999755859375, 948.0, 1519.4400634765625), 1)],
 'layer': '',
 'lineCap': None,
 'lineJoin': None,
 'rect': Rect(938.3999633789062, 1509.5999755859375, 948.0, 1519.4400634765625),
 'seqno': 0,
 'stroke_opacity': None,
 'type': 'f',
 'width': None}

The same path after derotation of the page looks like this:

{'closePath': False,
  'color': None,
  'dashes': None,
  'even_odd': False,
  'fill': (1.0, 1.0, 1.0),
  'fill_opacity': 1.0,
  'items': [('l', Point(1504.5599365234375, 938.3999633789062), Point(1504.5599365234375, 948.0)),
            ('l', Point(1504.5599365234375, 948.0), Point(1514.4000244140625, 948.0)),
            ('l', Point(1514.4000244140625, 948.0), Point(1514.4000244140625, 938.3999633789062)),
            ('l', Point(1514.4000244140625, 938.3999633789062), Point(1504.5599365234375, 938.3999633789062))],
  'layer': '',
  'lineCap': None,
  'lineJoin': None,
  'rect': Rect(1504.5599365234375, 938.3999633789062, 1514.4000244140625, 948.0),
  'seqno': 0,
  'stroke_opacity': None,
  'type': 'f',
  'width': None}

Yet, both paths refer to the same path which you can see when multiplying the original paths[0]["rect"] with page.rotation_matrix ... which gives the coordinates as if the page were not rotated:

paths[0]["rect"] * page.rotation_matrix
Rect(1504.5599365234375, 938.3999633789062, 1514.4000244140625, 948.0)

This is visibly the same rectangle of the first path after de-rotation.

So maybe this is a way for you to circumvent the problem.

from pymupdf.