Add ID to metadata of the png file. This is currently still buggy for the mpl engine.

plotid/save_plot.py

@@ -55,15 +55,24 @@ def save_plot(figures, plot_names, extension="png"):
         raise IndexError("There are more plot names than figures.")
 
     plot_path = []
+    exif_data_mpl = {
+        "Title": "Heyho",
+        "Author": "blub",
+        "Description": "Identiplier",
+        "Copyright": "R",
+        "Comment": "Test",
+    }
 
     for i, fig in enumerate(figures):
         if isinstance(fig, matplotlib.figure.Figure):
             plt.figure(fig)
             plot_path.append(plot_names[i] + ".tmp." + extension)
-            plt.savefig(plot_path[i])
+            plt.savefig(plot_path[i], metadata=exif_data_mpl)
         elif all(x in str(type(fig)) for x in ["PIL", "ImageFile"]):
             plot_path.append(plot_names[i] + ".tmp." + extension)
-            fig.save(plot_path[i])
+            img_exif = fig.getexif()
+            img_exif[270] = "Identiplier2"
+            fig.save(plot_path[i], exif=img_exif)
         else:
             raise TypeError(f"Figure number {i} is not a valid figure object.")