Added crop marks.

mtgproxies/__init__.py

@@ -1,4 +1,4 @@
-from mtgproxies.print_cards import print_cards_matplotlib, print_cards_fpdf
+from mtgproxies.print_cards import print_cards_fpdf, print_cards_matplotlib
 from mtgproxies.scans import fetch_scans_scryfall
 
 __all__ = [

mtgproxies/print_cards.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from pathlib import Path
 
 import matplotlib.pyplot as plt
@@ -8,12 +10,11 @@
 
 from mtgproxies.plotting import SplitPages
 
-
-def _occupied_space(cardsize, pos, border_crop, image_size, closed=False):
-    return cardsize * (pos * image_size - np.clip(2 * pos - 1 - closed, 0, None) * border_crop) / image_size
+image_size = np.array([745, 1040])
 
 
-scan_size = np.array([745, 1040])
+def _occupied_space(cardsize, pos, border_crop, closed=False):
+    return cardsize * (pos * image_size - np.clip(2 * pos - 1 - closed, 0, None) * border_crop) / image_size
 
 
 def print_cards_matplotlib(
@@ -69,12 +70,10 @@ def print_cards_matplotlib(
                         img = img[top:, left:]
 
                         # Compute extent
-                        lower = (
-                            offset + _occupied_space(cardsize, np.array([x, y]), border_crop, scan_size)
-                        ) / papersize
+                        lower = (offset + _occupied_space(cardsize, np.array([x, y]), border_crop)) / papersize
                         upper = (
-                            offset + _occupied_space(cardsize, np.array([x, y]), border_crop, scan_size) + cardsize *
-                            (scan_size - [left, top]) / scan_size
+                            offset + _occupied_space(cardsize, np.array([x, y]), border_crop) + cardsize *
+                            (image_size - [left, top]) / image_size
                         ) / papersize
                         extent = [lower[0], upper[0], 1 - upper[1], 1 - lower[1]]  # flip y-axis
 
@@ -102,7 +101,8 @@ def print_cards_fpdf(
     papersize=np.array([210, 297]),
     cardsize=np.array([2.5 * 25.4, 3.5 * 25.4]),
     border_crop: int = 14,
-    background_color=None,
+    background_color: tuple[int, int, int] = None,
+    cropmarks: bool = True
 ):
     """Print a list of cards to a pdf file.
 
@@ -120,7 +120,7 @@ def print_cards_fpdf(
     if N[0] == 0 or N[1] == 0:
         raise ValueError(f"Paper size too small: {papersize}")
     cards_per_sheet = np.prod(N)
-    offset = (papersize - _occupied_space(cardsize, N, border_crop, scan_size, closed=True)) / 2
+    offset = (papersize - _occupied_space(cardsize, N, border_crop, closed=True)) / 2
 
     # Ensure directory exists
     Path(filepath).parent.mkdir(parents=True, exist_ok=True)
@@ -152,11 +152,23 @@ def print_cards_fpdf(
                 plt.imsave(cropped_image, plt.imread(image)[top:, left:])
 
         # Compute extent
-        lower = offset + _occupied_space(cardsize, np.array([x, y]), border_crop, scan_size)
-        size = cardsize * (scan_size - [left, top]) / scan_size
+        lower = offset + _occupied_space(cardsize, np.array([x, y]), border_crop)
+        size = cardsize * (image_size - [left, top]) / image_size
 
         # Plot image
         pdf.image(cropped_image, x=lower[0], y=lower[1], w=size[0], h=size[1])
 
+        if cropmarks and ((i + 1) % cards_per_sheet == 0 or i + 1 == len(images)):
+            # If this was the last card on a page, add crop marks
+            pdf.set_line_width(0.05)
+            pdf.set_draw_color(255, 255, 255)
+            a = cardsize * (image_size - 2 * border_crop) / image_size
+            b = papersize - N * a
+            for x in range(N[0] + 1):
+                for y in range(N[1] + 1):
+                    mark = b / 2 + a * [x, y]
+                    pdf.line(mark[0] - 0.5, mark[1], mark[0] + 0.5, mark[1])
+                    pdf.line(mark[0], mark[1] - 0.5, mark[0], mark[1] + 0.5)
+
     tqdm.write(f"Writing to {filepath}")
     pdf.output(filepath, 'F')

print.py

@@ -2,7 +2,7 @@
 
 import numpy as np
 
-from mtgproxies import fetch_scans_scryfall, print_cards_matplotlib, print_cards_fpdf
+from mtgproxies import fetch_scans_scryfall, print_cards_fpdf, print_cards_matplotlib
 from mtgproxies.cli import parse_decklist_spec