1 files changed, 43 insertions, 0 deletions
diff --git a/collada_funcs.py b/collada_funcs.py
new file mode 100644
index 0000000..ba96c0f
--- /dev/null
+++ b/collada_funcs.py
@@ -0,0 +1,43 @@
+from lxml import etree
+from mathutils import Matrix
+
+# function to check if a collada file is valid
+# for now if it wil well formatted
+# it will also remove namespaces
+def check_collada(xml_path):
+  
+  # check for errors
+  try:
+    xml = etree.parse(xml_path)
+  except:
+    return None
+  
+  # function to remove namespaces
+  def strip_namespace(element):
+    if element.tag.startswith("{"):
+        element.tag = element.tag.split("}")[1]
+    for child in element:
+        strip_namespace(child)
+    return element
+  
+  # return the clean xml element
+  strip_namespace(xml.getroot())
+  return xml
+  
+# function to return the matrix contained in a matrix element
+def get_text_mat4x4(text, offset):
+
+  # remove the starting whitespace characters
+  while  (text[0] in " \n\t\r"):
+    text = text[1:]
+  text = text.split()
+  a = []
+  for num in text:
+    a.append(float(num))
+  for i in range(0, offset):
+    a.pop(0)
+  mat = Matrix(([a[0],  a[1],  a[2],  a[3]],
+                [a[4],  a[5],  a[6],  a[7]],
+                [a[8],  a[9],  a[10], a[11]],
+                [a[12], a[13], a[14], a[15]]))
+  return mat