add_the_ett_to_the_drawing: Add the effective top tube to a frame drawing

In ghuiber/bicycle: Design a bicycle frame

Description

Useful for slant top tube designs. For horizontal top tube designs there's nothing to add and you can check in df: the elements of the ett_triangle vector will be all 0.

Usage

add_the_ett_to_the_drawing(
  x,
  df,
  wheel_diameter = 622,
  c = I("black"),
  alpha_factor = 1
)

Arguments

x	An existing ggplot object. At a minimum, it's a scatter plot of the rear dropout center. But it can be a bicycle frame of a previous design already drawn, onto which you can now overlay a new design using the dims in df for easy comparison.
df	A frame design tibble, such as the minimal one drawn by wrap_frame_dims() or the one augmented by find_ht_extension_and_add_true_fork().
wheel_diameter	Wheel diameter in millimeters; 622 is the bead seat diameter of a 700c wheel. To see the effect of the tire width, add 2 x tire width in millimeters – i.e. specify wheel_diameter = 622 + 2 * 32 for a 32 mm tire.
c	The color of the line segments.
alpha_factor	The transparency of the line segments, alpha.

Value

A ggplot object.

See Also

ggplot2::ggplot()

ghuiber/bicycle documentation built on Dec. 20, 2021, 10:46 a.m.