+To create a mesh on geometry, it is necessary to create a mesh object by choosing
+- a geometrical shape produced in the Geometry module (<em>main shape</em>);
+- <em>meshing parameters</em>, including
+ - \ref basic_meshing_algos_page "meshing algorithms" and
+ - \ref about_hypo_page "hypotheses" specifying constraints to be
+ taken into account by the chosen meshing algorithms.
+
+Then you can launch mesh generation by invoking \ref compute_anchor "Compute" command.
+
+\note Sometimes \a hypotheses term is used to refer to both algorithms
+and hypotheses.
+
+Mesh generation on the geometry is performed in the bottom-up
+flow: nodes on vertices are created first, then edges are divided into
+segments using nodes on vertices; the node of segments are then
+used to mesh faces; then the nodes of faces are used to mesh
+solids. This automatically assures the conformity of the mesh.
+
+It is required to choose a meshing algorithm for every dimension of
+sub-shapes up to the highest dimension to be generated. Note
+that some algorithms generate elements of several dimensions, and
+others of only one. It is not necessary to define meshing
+parameters for all dimensions at once; you can start from 1D
+meshing parameters only, compute the 1D mesh, then define 2D meshing
+parameters and compute the 2D mesh (note that 1D mesh will not be
+re-computed).
+
+An algorithm of a certain dimension chosen at mesh creation is applied
+to discretize every sub-shape of this dimension. It is possible to
+specify a different algorithm or hypothesis to be applied to one or
+a group of sub-shapes by creating a \ref constructing_submeshes_page
+"sub-mesh". You can specify no algorithms at all at mesh object
+creation and specify the meshing parameters on sub-meshes only; then
+only the sub-shapes, for which an algorithm and a hypothesis (if any)
+have been defined will be discretized.
+
+\n Construction of a mesh on a geometry includes at least two
+(\ref create_mesh_anchor "mesh creation" and
+\ref compute_anchor "computing") of the following steps: