--# The first line holds the total number of the pattern nodes (N).
--# The next N lines describe nodes coordinates. Each line holds 2
-coordinates of a node for 2D pattern or 3 cordinates for 3D pattern.
-Note, that for 3D pattern only relateive values in range [0;1] are
-valid for coordinates of the nodes.
--# A key-points line: indices of nodes to be mapped on geometrical
-vertices (for 2D pattern only). An index n refers to a node described
-on an n-th line of section 2. The first node index is zero. For 3D
-pattern key points are not specified.
--# The rest lines describe nodal connectivity of elements, one line
-for an element. A line holds indices of nodes forming an element. An
-index n refers to a node described on an n-th line of the section
-2. The first node index is zero. There must be 3 or 4 indices on a
-line for 2D pattern (only 2d elements are allowed) and 4, 5, 6 or 8
-indices for 3D pattern (only 3d elements are allowed).
-
-The 2D pattern must contain at least one element and at least one
-key-point. All key-points must lay on boundaries.
-
-The 3D pattern must contain at least one element.
+-# The first line indicates the total number of pattern nodes (N).
+-# The next N lines describe nodes coordinates. Each line contains 2
+node coordinates for a 2D pattern or 3 node cordinates for a 3D pattern.
+Note, that node coordinates of a 3D pattern can be defined only by relative values in range [0;1].
+-# The key-points line contains the indices of the nodes to be mapped on geometrical
+vertices (for a 2D pattern only). Index n refers to the node described
+on the n-th line of section 2. The index of the first node zero. For a 3D pattern the key points are not specified.
+-# The remaining lines describe nodal connectivity of elements, one line
+for each element. Each line holds indices of nodes forming an element.
+Index n refers to the node described on the n-th line of section 2.
+The first node index is zero. There must be 3 or 4 indices on each
+line for a 2D pattern (only 2d elements are allowed) and 4, 5, 6 or 8
+indices for a 3D pattern (only 3d elements are allowed).
+
+A 2D pattern must contain at least one element and at least one
+key-point. All key-points must lie on boundaries.
+
+A 3D pattern must contain at least one element.
