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<LI> COORDONNEES POINTAGE: <i> action</i> - PNT - Return the coordinates of a point
(boundary or belonging to a cut plane) which is closest to the point clicked on the screen. The sub-domain
number is also given for the element cut (case of a cut).
</UL>
<P>
The secondary menu of sub-menu &quot;REFERENCE POINT...&quot; is given below:
<UL><LI> <b>&gt;&gt;</b> QUITTER: <i> action</i> - Q - Return to sub-menu &quot;INFO SUR OBJET&quot;.
</UL>
<P>
<DT>Sub-menu &quot;AFFECTER REFERENCE&quot;:
<DD>  
<P>
<DL COMPACT><DT>Access:
<DD> Via the main menu.
<P>
 </DL>
<P>
This sub-menu is used to assign reference or sub-domain numbers to clicked items
individually (point, edge, face or element). The following items can be selected:
<P>
<UL><LI> REFERENCE POINT: <i> action</i> - RFPO - To reference the designated point, which appears in bold,
to the number indicated in the secondary menu.
<LI> REFERENCE ARETE : <i> action</i> - RFAR - To reference the designated edge, which appears in bold,
to the number indicated in the secondary menu.
<LI> REFERENCE FACETTE: <i> action</i> - RFFA - To reference the designated face, which appears in bold,
to the number indicated in the secondary menu.
<LI> POINT/ARETE/FACE:  <i> action</i> - RFT - To reference the designated points, edges and face,
which changes color,
to the number indicated in the secondary menu.
<LI> REFERENCE S/DOMAINE: <i> action</i> - RFSD - To change the sub-domain number.
<LI> RAFRAICHIR: <i> action</i> - RAF - To refresh the image.
<LI> INFO SUR OBJET...: <i> sub-menu</i> - INFO - To go to the sub-menu.
</UL>
<P>
The secondary menu of menu &quot;AFFECTER REFERENCE...&quot; is given below:
<UL><LI> COMMANDE GROUPEE: <i> action</i> - GRP - To group together the searches. The clicked points
are grouped together in one stack in order to perform the search at a later stage (maximum
200 items can be stacked).
<LI> CHANGER DE NUMERO: <i> action</i> - N - To change the number.
<LI> RAPPEL DU NUMERO:<i> action</i> - RAPL - The number under consideration is written in F4.
<LI> ANNULE DERNIERE COMM: <i> action</i> - ANN - Delete the last command.
<LI> DETRUIT COMMANDE: <i> action</i> - DETC - To delete all the grouped commands.
<LI> <b>&gt;&gt;</b> QUITTER: <i> action</i> - Q - Return to the main menu.
<LI> <b>&gt;&gt;</b> EXECUTION: <i> action</i> - X - Initiate execution while retaining the above selections.
</UL>
<P>
<DT>Sub-menu &quot;REFERENCE PAR LOT&quot;:
<DD>  
<P>
<DL COMPACT><DT>Access:
<DD> Via the main menu.
<P>
 </DL>
<P>
This sub-menu is used to assign reference or sub-domain numbers to a group of items
 (point, edge, face or element). The following items can be selected:
<P>
<UL><LI> ENSEMBLE VISUALISE: <i> status</i> - EVI - Select the set of faces visualized. The selection
menu of the item to be referenced is then called.
<LI> DEVANT LE PLAN: <i> status</i> - DPL - Select the faces not visualized
 (complementary to the previous). The selection
menu of the item to be referenced is then called.
<LI> TOUT L'OBJET: <i> status</i> - TOB - Select the entire object.
 The selection menu of the item to be referenced is then called.
<LI> ENSEMBLE REFERENCE: <i> status</i> - ERF - Select the set of faces with non-zero
references. The selection menu of the item to be referenced is then called.
<LI> ENSEMBLE SANS REF: <i> status</i> - ENRF - Select the set of faces with zero
reference. The selection menu of the item to be referenced is then called.
<LI> ENS DE REF DONNEE: <i> status</i> - EDRF - Select the set of faces with given reference
(the user can choose up to 10 numbers). The selection menu of the item to be referenced is then called.
<LI> SOUS-DOMAINS: <i> action</i> - SDRF - To assign a sub-domain number to all the elements in the mesh.
</UL>
<P>
The secondary menu of menu &quot;REFERENCE PAR LOT...&quot; is given below:
<UL><LI> <b>&gt;&gt;</b> QUITTER:<i> action</i> - Q - Return to the main menu.
</UL>
<P>
<DT>Sub-menu &quot;CHANGER REFERENCE&quot;:
<DD>  
<P>
<DL COMPACT><DT>Access:
<DD> Via the main menu.
<P>
 </DL>
<P>
This sub-menu is used to change reference or sub-domain numbers of a group of items
 (point, edge, face or element) by specifying the
correspondence between the number to change and the new number to assign to these items.
The following items can be selected:
<P>
<UL><LI> DES SOUS-DOMAINES: <i> status</i> - CHSD - To select the elements with a given sub-domain
 number in order to change this number (see secondary menu).
<LI> DES FACES: <i> status</i> - CHFA - To select the faces with a given reference
 number in order to change this number (see secondary menu).
<LI> DES ARETES: <i> status</i> - CHAR - To select the edges with a given reference
 number in order to change this number (see secondary menu).
<LI> DES POINTS: <i> status</i> - CHPO - To select the points with a given reference
 number in order to change this number (see secondary menu).
<LI> DE TOUT: <i> status</i> - CHTO - To select the faces, edges and points with a given reference
 number in order to change this number (see secondary menu).
</UL>
<P>
<P>
<P>
The secondary menu of menu &quot;CHANGER DE REFERENCE...&quot; is given below:
<UL><LI> REF1 <IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img71.gif"> REF2: <i> action</i> - RFRF - To indicate the transfer to perform. The number to be changed and
the new value to assign to the items are requested.
<LI> ETAT ACTUEL: <i> action</i> - RAP - Display the above correspondence in F4.
<LI> <b>&gt;&gt;</b> EXECUTION: <i> action</i> - X - Execute the defined request.
<LI> <b>&gt;&gt;</b> QUITTER: <i> action</i> - Q - Return to the main menu.
</UL>
<P>
<DT>Sub-menu &quot;CONSTRUCTION DE BD&quot;:
<DD>  
<P>
<DL COMPACT><DT>Access:
<DD> Via the main menu.
<P>
 </DL>
<P>
This sub-menu is used to construct a <b> Data Base</b> containing a mesh, or a part of a mesh. Two Ascii files
are created:
<UL><LI> A file containing the point coordinates and references, which have the following form:
<P>
<PRE>      NP
      Loop from 1 to NP
         X   Y  Z  REFP
      End of loop
</PRE>
<P>
where  NP is the number of points, X, Y and Z are the coordinates and NREF is the reference of these points.
<LI> A file containing the mesh connectivity, which has the following form;
<P>
<PRE>      NE
      Loop from 1 to NE
         NNO   NONO(1:NNO)   NDSD  NREFF(1:NBFA)   NREFA(1:NBAR)
      End of loop
</PRE>
<P>
where  NE is the number of elements, NNO is the number of points per element (4 for a tetrahedron, -4 for a
quadrilateral), NONO is the array of the <b>|</b>NNO<b>|</b> element point numbers, NDSD is the element
sub-domain number (the reference in the case of a face), NREFF and NREFA are the arrays containing the
face and edge reference numbers of the element
 (NREFF only exists for the case of a volume).
</UL>
<P>
A prefix is requested to name the files (prefix.coor, prefix.vol , prefix.points or
prefix.faces according to the case).
<P>
<P>
<P>
The element definitions are considered as in a D.S. <b> NOPO</b>.
<P>
<P>
<P>
The above sub-menu is used to select the following items:
<P>
<UL><LI> BD DE L'OBJET: <i> action</i> - BDOB - To create the DB of the object. The file
prefix.vol will contain the element connectivity and the file prefix.coor the point coordinates.
<LI> BD DE LA PEAU: <i> action</i> - BDPO - To create the DB for the object boundary. The elements to be  saved
are triangles and quadrilaterals.
The file prefix.faces will contain the element connectivity  and the file prefix.coor the point coordinates.
<LI> BD PEAU TRIANGULEE: <i> action</i> - BDPT - To create the DB for the object boundary split into
triangles. The elements to be saved are  triangles.
The file prefix.faces will contain the element connectivity  and the file prefix.coor the point coordinates.
<LI> TOUTE LA PEAU: <i> action</i> - PEAU - To create the DB for the outer surface of the object.
The elements to be saved are  triangles and quadrilaterals.
The file prefix.faces will contain the element connectivity  and the file prefix.coor the point coordinates.
<LI> REFERENCE DONNEE: <i> action</i> - PEAU - To create the DB for items on the outer surface of the object
with given reference numbers (the user inputs these numbers (10 maximum).
The elements to be saved are  triangles and quadrilaterals.
The file prefix.faces will contain the element connectivity  and the file prefix.coor the point coordinates.
<LI> TOUS LES SD: <i> action</i> - BSD -  To create the DB of the object. The file
prefix.vol will contain the element connectivity and the file prefix.coor the point coordinates.
<LI> SD DONNEE: <i> action</i> - BRSD - To create the DB of the object's elements with given sub-domain
number (the user inputs these numbers (5 maximum)).
The file prefix.vol will contain the element connectivity and the file prefix.coor the point coordinates.
<LI> INVERSION DE SENS: <i> status</i> - INV - The data is saved in the inverse order
of that defined in D.S. <b> NOPO</b>.
</UL>
<P>
The secondary menu of menu &quot;CONSTRUCTION DE BD...&quot; is given below:
<UL><LI> <b>&gt;&gt;</b> QUITTER: <i> action</i> - Q - Return to the main menu.
</UL>
<P>
<P>
<DT>Sub-menu &quot;TRANSFORMATION&quot;:
<DD>  
<P>
<DL COMPACT><DT>Access:
<DD> Via the main menu.
<P>
 </DL>
<P>
This sub-menu is used to perform geometric transformations on a mesh: linear transformations or
input via a matrix. Several transformations can be stacked. Furthermore, it is possible
to move the boundary points. The transformed mesh can be saved. The following items can be selected;
<P>
<UL><LI> TRANSLATION: <i> status</i> - TRAN - To define a translation whose 3 components must be input.
<LI> SYMETRIE: <i> status</i> - SYM - To define a symmetry with respect to a plane whose equation must be input.
<LI> ROTATION: <i> status</i> - ROT - To define a rotation around an axis. The rotational axis
is defined by a vector and a point; these 6 values must be input in addition to the angle in degrees.
<LI> DILATATION: <i> status</i> - DIL - To define a anisotropic dilation whose 3 coefficients must be input
 in addition to the coordinates of an invariant point.
<LI> AUTRE: <i> status</i> - AUTR - To define a transformation via its <IMG BORDER=0 ALIGN=MIDDLE ALT="" SRC="img72.gif"> matrix and its
right-hand-side (vector with 3 components). The new point is defined via <IMG BORDER=0 ALIGN=MIDDLE ALT="" SRC="img73.gif">.
<LI> INVERSION DE SENS: <i> action</i> - INVS - To invert the direction.
<LI> BOUGER POINT: <i> action</i> - BPO - To move the clicked point of a vector defined via the
secondary menu (no verification).
<LI> BOUGER LES X: <i> action</i> - BPX - To move points of given references by assigning a
given value to their x coordinates (no verification).
<LI> BOUGER LES Y: <i> action</i> - BPY - To move points of given references by assigning a given value to their
y coordinates (no verification).
<LI> BOUGER LES Z: <i> action</i> - BPZ - To move points of given references by assigning a given value to their
z coordinates (no verification).
<LI> RAFRAICHIR: <i> action</i> - RAF - To refresh the screen.
<LI> PREMIER PLAN: <i> action</i> - PRPL - Bring the designated face to the foreground.
</UL>
<P>
The secondary menu of menu &quot;TRANSFORMATION...&quot; is given below:
<UL><LI> ANNULER TOUT: <i> action</i> - ANNT - Delete all the transformations defined.
<LI> ANNULER DER TRANSFO: <i> action</i> - ANN - Delete the last transformation defined.
<LI> DEFINIR UN VECTEUR: <i> action</i> - V - Define the vector used to move points.
<LI> VOIR LE VECTEUR: <i> action</i> - VVEC - Display the vector in F4.
<LI> <b>&gt;&gt;</b> EXECUTION: <i> action</i> - X - Execute the requests defined.
<LI> <b>&gt;&gt;</b> QUITTER: <i> action</i> - Q - Return to the main menu.
</UL>
<P>
<P>
<P>
An example of geometric transformations is given in figures <A HREF="#figrefetran1">2.21</A> and
<A HREF="#figrefetran2">2.22</A>. The initial object, shown in the first figure, is dilated in the z-direction with a
factor 1.5. The result is shown in the second figure (the two figures are softcopies).
<P>
 </DL>
<P>
<P><A NAME=1812>&#160;</A><IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img74.gif">
<BR><STRONG>Figure 2.21:</STRONG> <i> Example <b> REFEXX</b>: initial mesh in automatic mode</i><A NAME=1810iExample1806bREFEXXb1806initialmeshinautomaticmodei1810>&#160;</A><BR>
<P>
<P>
<P><A NAME=1825>&#160;</A><IMG BORDER=0 ALIGN=BOTTOM ALT="" SRC="img75.gif">
<BR><STRONG>Figure 2.22:</STRONG> <i> Example <b> REFEXX</b>: mesh after dilation</i><A NAME=1823iExample1819bREFEXXb1819meshafterdilationi1823>&#160;</A><BR>
<P>
<P>
<P>
<P>
<H2><A NAME=SECTION04344000000000000000>2.4.4 Keyword-Action correspondence</A></H2>
<P>
<P>
<P>
General keywords:
<P>
<P>
<P>
<UL><LI> X  Execution
<LI> Q  Quit
<LI> RAF  Refresh
<LI> HARD  Hardcopy
<LI> SOFT  Softcopy
<LI> *FIN  End
</UL>
<P>
<P>
<P>
For menu &quot;MODULEF&quot;:
<P>
<P>
<P>
<UL><LI> MV    Modify the visualization
<LI> INFO  Information pertaining to the object
<LI> VRF   Mesh verification
<LI> AFRF  Assign references
<LI> RFLO  References by group
<LI> CHRF  Change a reference
<LI> SAUV  Save the Data Structure
<LI> ENRG  Write the Data Structure
<LI> REVV  Return to the version
<LI> COBD  Construct a Data Base
<LI> TRSF  Transformations
<LI> COM   Insert comments
<LI> NEW   Change mesh
</UL>
<P>