How can I apply angle and stretch factor to one morph?

[nissansz]

How can I apply angle and stretch factor to one morph?

Have boundingbox, need to rotate and stretch.

                rotation_matrix = fitz.Matrix(angle)
                
                stretch_matrix = fitz.Matrix(1, stretch_factor)


                page.insert_text((rect.x0, rect.y0 + fontsize * 0.8), text.rstrip(), fontsize=fontsize_fit,
                                 # fontname="F0",
                                 fontname=fontname,
                                 overlay=True,
                                 color=fillcolor,
                                 # stroke_opacity=1-score,
                                 stroke_opacity=1,
                                 # fill_opacity=1-score,
                                 fill_opacity=1,
                                 # morph=(fitz.Point(rect.x0, rect.y0), transform_matrix))
                                 morph=(fitz.Point(rect.x0, rect.y0), combined_matrix))
                                 # morph=morph)

[JorjMcKie]

You can multiply matrices like morph=(point, m1*m2).

[nissansz]

r3.pdf
r3_350_-4.pdf

It is hard to get a good match. This is the best angle result I can got.
But don't fit word length. Don't know how to improve.

          #
                desired_height = rect.height
                original_height = fontsize
                stretch_factor = 1  # 计算拉伸因子
                if not original_height ==0:
                    stretch_factor = desired_height / original_height  # 计算拉伸因子
                print(
                    f'desired_height={desired_height}, original_height ={original_height}, stretch_factor ={stretch_factor}')

                rotation_matrix = fitz.Matrix(angle)

                combined_matrix =  rotation_matrix*stretch_factor

[nissansz]

Another result is like above, some words shifted far above original position, don't know how to improve.

[nissansz]

corrected pivot start point for angles.

                top = min_y * ratio
                left = min_x * ratio
                bottom = max_y * ratio
                right = max_x * ratio


                if angle>360: # 如果是左倾斜，则top 和 bottom对调，
                    bottom = min_y * ratio - height_line
                    left = min_x * ratio
                    top = max_y * ratio - height_line
                    right = max_x * ratio