Following the accuracy indication and a short description of the calculated sundial (boreal, southern, polar, equatorial), Calcad lists the information needed to build the sundial: the details of the shadow caster and the coordinates of essential features, defined in the axis system drawn on the dial face.
The data that is listed depends on whether the point where the hour lines intersect (the sundial center) is inside or outside the layout area:
o If the center lies inside the dial, it will be the start point of all the hour lines. If you chose Style as the shadow-caster, it will be triangular, with its lower end point at the sundial center, as shown in green in the diagram
o If the center lies outside the dial like the sundial made for these instructions for use, the data will list both extremities of the hour lines. If you chose Style, it will be trapezoidal and the data will indicate the position and height of both its end points
The numeric data depends on the layout options you choose in the different menus.
o If the sundial is of solar hour type: the additional correction to make
o If the selected shadow-caster is Gnomon (perpendicular rod) its position and height
o If the selected shadow-caster is Style (triangle or trapezoid) the details of its two end points, as follows:
* The first point is always the business end of the style: position and height
* If the sundial center lies inside the dial, the style is a triangle and the second point will be the coordinates of the sundial center: the junction point of the hour lines and the style (height zero)
* If the sundial center lies outside the dial, the style will be a trapezoid and the data will include the coordinates and height of the second point
* The length of the style
o If Hour lines is selected, for each hour (and subdivision, if selected) the position of the line's 2 end points
o If the horizon line is selected, the coordinates of its end points
o If the arcs of the zodiacal signs are drawn, the 2 end positions of the equinoctial (line of the equinoxes)
o The reduced parameters of the sundial in case you want to draw it using other sundial software