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Commit 02e5cf20 authored by Christophe Geuzaine's avatar Christophe Geuzaine
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better wording
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...@@ -13,9 +13,9 @@ ...@@ -13,9 +13,9 @@
lc = 0.007; lc = 0.007;
// This variable can then for example be used in the definition of // This variable can then for example be used in the definition of
// Gmsh's simplest elementary entity, a `Point'. A Point is defined by // Gmsh's simplest `elementary entity', a `Point'. A Point is defined
// a list of four numbers: its three coordinates (X, Y and Z), and a // by a list of four numbers: its three coordinates (X, Y and Z), and
// characteristic length which sets the target element size at the // a characteristic length which sets the target element size at the
// point: // point:
Point(1) = {0, 0, 0, 9.e-1 * lc}; Point(1) = {0, 0, 0, 9.e-1 * lc};
...@@ -61,14 +61,13 @@ Line Loop(5) = {4,1,-2,3} ; ...@@ -61,14 +61,13 @@ Line Loop(5) = {4,1,-2,3} ;
Plane Surface(6) = {5} ; Plane Surface(6) = {5} ;
// At this level, Gmsh knows everything to display the rectangular // At this level, Gmsh knows everything to display the rectangular
// surface 6 and to mesh it. But a supplementary step is needed in // surface 6 and to mesh it. An optional step is needed if we want to
// order to assign region numbers to the various elements in the mesh // associate specific region numbers to the various elements in the
// (i.e. to the points, the line segments and the triangles // mesh (e.g. to the line segments discretizing lines 1 to 4 or to the
// discretizing points 1 to 4, lines 1 to 4 and surface 6, // triangles discretizing surface 6). This is achieved by the
// respectively). This is achieved by the definition of `physical // definition of `physical entities'. Physical entities will group
// entities'. Physical entities will group elements belonging to // elements belonging to several elementary entities by giving them a
// several elementary entities by giving them a common number (a // common number (a region number), and specifying their orientation.
// region number), and specifying their orientation.
// We can for example group the points 1 and 2 into the physical // We can for example group the points 1 and 2 into the physical
// entity 1: // entity 1:
......
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