#### 10.10.3 AxeX3D

• AxeX3D( <option1>, <option2>, ... ).
• Description: draw the $Ox$ axis of the space coordinate system, that axis is oriented by the vector vecI passing through a point that is by default the origin. Options are:
• axeOrigin := < point3D >: defines a point of the axis. By default, that point is the origin: M(0,0,0).
• xlimits := < [xinf,xsup] >: defines the axis range. By default, this is the interval [Xinf, Xsup].
• xgradlimits := < [x1,x2 >: define the ticks range. By default this is the same as xlimits.
• xstep := < nombre >: define the ticks step: 1 by default. If the value is zero, then threre will be no ticks nor labels.
• tickdir := < 3D vector >: shows the ticks direction, by default that vector is -vecK.
• tickpos := < 0..1 >: shows the ticks position with respect to the axis, by default the value is $0.5$ this means the axis passes through the middle of the ticks.
• labels := < 0/1 >: shows if the ticks labels will be displayed or not ($1$ by default).
• originlabel := < 0/1 >: shows if the label of the origin is displayed or not ($0$ by default).
• nbdeci := < integer >: the displayed decimal places number ($2$ by default). If the predefined variable usecomma is $1$, the decimal point is replaced by a comma. If the variable dollar is $1$, the graduations are framed with the character \$.
• xlabelstyle := < left/right/... >: define the label style, the default value is equal to LabelStyle. The style does not apply to the legend.
• xlabelsep := < distance en cm >: define the distance between the end of the graduations and the labels ($0.25$ by default).
• newxlegend( <"texte"> ): macro defining the legend for the $Ox$ axis, by default the text is "\$x\$". If the string is empty, there will be no legend.
• xlegendsep := < distance en cm > define the distance between the end of the ticks and the legend or the end of the axis depending on the position. That distance is $0.5$ by default and is added to xlabelsep if the legend is not at one end.
• legendpos := < 0..1 >: define the legend position, if there is one. With the value $0$, the legend is “below” the end of the axis, with the value $1$ the legend is “above” the end the axis, else it is along the axis. By default the value is $0.5$ (middle of the axis).