Spline - A XFig file animator class - Spline object
Spline object - object code in FIG format: 3. Here are all the attributes of this class:
sub_type, line_style, thickness, pen_color, fill_color, depth, pen_style, area_fill, style_val, cap_style, forward_arrow, backward_arrow, npoints, f_arrow_type, f_arrow_style, f_arrow_thickness, f_arrow_width, f_arrow_height, b_arrow_type, b_arrow_style, b_arrow_thickness, b_arrow_width, b_arrow_height, xnpoints, ynpoints, control_points, visibility, center_x, center_y, max_spline_step, high_precision
0: opened approximated spline; 1: closed approximated spline; 2: opened interpolated spline; 3: closed interpolated spline; 4: opened x-spline; 5: closed x-spline.
-1: Default; 0: Solid; 1: Dashed; 2: Dotted; 3: Dash-dotted; 4: Dash-double-dotted; 5: Dash-triple-dotted.
80-ths of an inch ("display units")
-1..31: FIG colors; 32..543 (512 total): user colors.
-1..31: FIG colors; 32..543 (512 total): user colors.
0 ... 999: larger value means object is deeper than (under) objects with smaller depth
unused
fill type
length, in 1/80 inches, of the on/off dashes for dashed lines, and the distance between the dots, in 1/80 inches, for dotted lines
0 = Butt (default); 1 = Round; 2 = Projecting.
0: no forward arrow; 1: on
0: no backward arrow; 1: on
number of control points in spline
0: Stick-type (default); 1: Closed triangle; 2: Closed with "indented" butt; 3: Closed with "pointed" butt
0: Hollow (filled with white); 1: Filled with pen_color
1/80 inch
Fig units
Fig units
arrays of points coordinates in Fig units
array of control points values: there is one shape factor for each point. The value of this factor must be between -1 (which means that the spline is interpolated at this point) and 1 (which means that the spline is approximated at this point). The spline is always smooth in the neighbourhood of a control point, except when the value of the factor is 0 for which there is a first-order discontinuity (i.e. angular point).
0: hidden; 1: shown
calculated center (Fig units)
parameter for computing polyline from spline (default 0.2)
parameter for computing polyline from spline (default 0.5)
