From e836c3bb420472f355572f5feca0382d14fa3167 Mon Sep 17 00:00:00 2001
From: Wallbreaker5th <3277946283@qq.com>
Date: Fri, 18 Jun 2021 14:43:09 +0800
Subject: [PATCH 1/2] Temporary hack for showing text correctly

---
 manimlib/mobject/svg/text_mobject.py | 3 +++
 manimlib/utils/space_ops.py          | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/manimlib/mobject/svg/text_mobject.py b/manimlib/mobject/svg/text_mobject.py
index e0161f23..6ae95797 100644
--- a/manimlib/mobject/svg/text_mobject.py
+++ b/manimlib/mobject/svg/text_mobject.py
@@ -68,6 +68,9 @@ class Text(SVGMobject):
         # anti-aliasing
         if self.height is None:
             self.scale(TEXT_MOB_SCALE_FACTOR * self.font_size)
+        
+        for i in self.submobjects:
+            i.insert_n_curves(len(i.get_points()))
 
     def remove_empty_path(self, file_name):
         with open(file_name, 'r') as fpr:
diff --git a/manimlib/utils/space_ops.py b/manimlib/utils/space_ops.py
index c124cbec..24e4c94d 100644
--- a/manimlib/utils/space_ops.py
+++ b/manimlib/utils/space_ops.py
@@ -367,6 +367,9 @@ def earclip_triangulation(verts, ring_ends):
         list(range(e0, e1))
         for e0, e1 in zip([0, *ring_ends], ring_ends)
     ]
+    for i in rings:
+        verts[i[0]] += (verts[i[1]]-verts[i[0]])*5e-6
+        verts[i[-1]] += (verts[i[-2]]-verts[i[-1]])*5e-6
     attached_rings = rings[:1]
     detached_rings = rings[1:]
     loop_connections = dict()
@@ -402,7 +405,7 @@ def earclip_triangulation(verts, ring_ends):
         # Move the ring which j belongs to from the
         # attached list to the detached list
         new_ring = next(filter(
-            lambda ring: ring[0] <= j < ring[-1],
+            lambda ring: ring[0] <= j <= ring[-1],
             detached_rings
         ))
         detached_rings.remove(new_ring)

From a99ccea02cec8325a94aee478c6bf4e2e649af7c Mon Sep 17 00:00:00 2001
From: Wallbreaker5th <3277946283@qq.com>
Date: Sat, 19 Jun 2021 16:00:39 +0800
Subject: [PATCH 2/2] Add some comments about the temporary hack

---
 manimlib/mobject/svg/text_mobject.py | 2 ++
 manimlib/utils/space_ops.py          | 1 +
 2 files changed, 3 insertions(+)

diff --git a/manimlib/mobject/svg/text_mobject.py b/manimlib/mobject/svg/text_mobject.py
index 6ae95797..705524d0 100644
--- a/manimlib/mobject/svg/text_mobject.py
+++ b/manimlib/mobject/svg/text_mobject.py
@@ -69,6 +69,8 @@ class Text(SVGMobject):
         if self.height is None:
             self.scale(TEXT_MOB_SCALE_FACTOR * self.font_size)
         
+        # Just a temporary hack to get better triangulation
+        # See pr #1552 for details
         for i in self.submobjects:
             i.insert_n_curves(len(i.get_points()))
 
diff --git a/manimlib/utils/space_ops.py b/manimlib/utils/space_ops.py
index 24e4c94d..b24ca4f8 100644
--- a/manimlib/utils/space_ops.py
+++ b/manimlib/utils/space_ops.py
@@ -367,6 +367,7 @@ def earclip_triangulation(verts, ring_ends):
         list(range(e0, e1))
         for e0, e1 in zip([0, *ring_ends], ring_ends)
     ]
+    # Points at the same position may cause problems
     for i in rings:
         verts[i[0]] += (verts[i[1]]-verts[i[0]])*5e-6
         verts[i[-1]] += (verts[i[-2]]-verts[i[-1]])*5e-6