update: plotting

app.py

@@ -2,7 +2,7 @@ import argparse
 import gradio as gr
 
 from hloc import extract_features
-from extra_utils.utils import (
+from common.utils import (
     matcher_zoo,
     device,
     match_dense,

{extra_utils → common}/plotting.py

@@ -57,7 +57,7 @@ def make_matching_figure(
         axes[1].scatter(kpts1[:, 0], kpts1[:, 1], c="w", s=5)
 
     # draw matches
-    if mkpts0.shape[0] != 0 and mkpts1.shape[0] != 0:
+    if mkpts0.shape[0] > 1 and mkpts1.shape[0] > 1:
         fig.canvas.draw()
         transFigure = fig.transFigure.inverted()
         fkpts0 = transFigure.transform(axes[0].transData.transform(mkpts0))