GUI issue #66: Button for switching prismatic/cylindric joints

Author: kmokstad

src/UsersGuide/Figures/4-ConvertToPrismatic.png

@@ -866,8 +866,8 @@ \subsubsection{\sl\textbf{Adding friction}}
 The rotation angle is measured between the $X$-axis of the first master triad
 and the $X$-axis of the slave triad.
 
-\begin{wrapfigure}[8]{r}{0.5\textwidth}
-  \vspace{-3mm}
+\begin{wrapfigure}[4]{r}{0.5\textwidth}
+  \vspace{-8mm}
   \begin{picture}(170,85)
     \put(0,0){\includegraphics[width=0.5\textwidth]{Figures/cylindricalJointSymbol}}
     \put(1,52){\Bullet{1}}
@@ -886,6 +886,10 @@ \subsubsection{\sl\textbf{Adding friction}}
   First master triad
 \item
   The slider path (represented by the line from the first master to the last)
+\end{bulletlist}
+
+\begin{bulletlist}
+  \setcounter{enumi}{2}
 \item
   Rotational joint variable (represented by the angle of the $X$-axis)
 \item
@@ -913,25 +917,41 @@ \subsubsection{\sl\textbf{Adding friction}}
   masters in the same way as for prismatic joints
   (see \protect\hyperlink{prismatic-joint}{\sl"Prismatic joint"} above).}
 
-\Tip{A zero screw ratio makes the cylindric joint equivalent to
-  a prismatic joint.}
+\Tip{A cylindric joint with a zero screw ratio is equivalent to a prismatic.}
 
+\vspace{-3mm}\subsubsection{\sl\textbf{Switching to Prismatic Joint}}
+
+\begin{wrapfigure}[4]{r}{0.34\textwidth}
+  \vspace{-20mm}
+  \begin{picture}(170,85)
+    \put(0,0){\includegraphics[width=0.34\textwidth]{Figures/4-ConvertToPrismatic}}
+  \end{picture}
+\end{wrapfigure}
+
+You can easily convert a Cylindric joint to a Prismatic by using the
+\textbf{Convert to Prismatic joint} button in {\sl Summary} tab of the
+Cylindric joint Property Editor panel (shown to the right).
+The {\sl Tz} properties will then be transferred to the Prismatic joint,
+whereas the {\sl Rz} properties of course will be lost.
+
+Similaraly, a Prismatic joint will have a
+\textbf{Convert to Cylindric joint} button in its {\sl Summary} tab,
+which will add an (initially {\sl Free}) {\sl Rz} DOF.
 
 \subsubsection{Cam joint}
 
 \IconTextFirst{camJoint}{
-  A cam joint has six unconstrained DOFs that allow the slave triad
-  (called the {\sl follower}) to move over a curved surface
-  (called the {\sl cam surface}).
+  A cam joint has six unconstrained DOFs that allow the slave triad (a.k.a.
+  the {\sl follower}) to move over a curved surface (the {\sl cam surface}).
   The cam surface is defined by a curve consisting of three-point circular arcs.
   Each arc is defined by the location of three master triads,
-  also called {\sl cam triads}. A cam joint must consist of one slave/follower
-  triad and at least three master/cam triads.
+  also called the {\sl cam triads}. A cam joint must consist of one follower
+  triad and at least three cam triads.
   See also the \FedemTGuide{Section 6.3.3, "Cam joint"}.}
 
 It is recommended to use at least one arc segment per quarter of a
 circle to make the solution more stable. This means you will need at
-least 8 master triads for a complete circle.
+least eight master/cam triads for a complete circle.
 
 \Tip{You can use the same cam triads in several different cam joints, making it
   possible to constrain several follower triads to the same cam surface.}
@@ -1035,7 +1055,6 @@ \subsubsection{\sl\textbf{Cam joint variables}}
 {\sl Prescribed} settings are not available because the cam joint uses
 a different formulation than the other joints.
 
-\clearpage
 The three main joint variables, defined in the $X$-, $Y$- and $Z$-directions
 of the cam joint's local coordinate system, are:
 
@@ -1153,9 +1172,8 @@ \subsubsection{\sl\textbf{Radial contact springs}}
 
 \subsubsection{\sl\textbf{Cam with spherical or cylindrical follower}}
 
-Quite often the follower in a cam joint has some sort of spherical or
-cylindrical shape. This is not fully supported by Fedem, but this
-section describes how you can do it.
+Often the follower in a cam joint should have a spherical or cylindrical
+shape. Below, we describe how such behaviour can be modelled.
 
 The radius of the sphere or cylinder must be entered as an
 {\sl Initial stress free length} for the spring in the $X$-translation DOF