def draw_axis(self, axis, color):
ticks = self._p._axis_ticks[axis]
radius = self._p._tick_length / 2.0
if len(ticks) < 2:
return
# calculate the vector for this axis
axis_lines = [[0, 0, 0], [0, 0, 0]]
axis_lines[0][axis], axis_lines[1][axis] = ticks[0], ticks[-1]
axis_vector = vec_sub(axis_lines[1], axis_lines[0])
# calculate angle to the z direction vector
pos_z = get_direction_vectors()[2]
d = abs(dot_product(axis_vector, pos_z))
d = d / vec_mag(axis_vector)
# don't draw labels if we're looking down the axis
labels_visible = abs(d - 1.0) > 0.02
# draw the ticks and labels
for tick in ticks:
self.draw_tick_line(axis, color, radius, tick, labels_visible)
# draw the axis line and labels
self.draw_axis_line(axis, color, ticks[0], ticks[-1], labels_visible)
def draw_axis(self, axis, color):
ticks = self._p._axis_ticks[axis]
radius = self._p._tick_length / 2.0
if len(ticks) < 2:
return
# calculate the vector for this axis
axis_lines = [[0, 0, 0], [0, 0, 0]]
axis_lines[0][axis], axis_lines[1][axis] = ticks[0], ticks[-1]
axis_vector = vec_sub(axis_lines[1], axis_lines[0])
# calculate angle to the z direction vector
pos_z = get_direction_vectors()[2]
d = abs(dot_product(axis_vector, pos_z))
d = d / vec_mag(axis_vector)
# don't draw labels if we're looking down the axis
labels_visible = abs(d - 1.0) > 0.02
# draw the ticks and labels
for tick in ticks:
self.draw_tick_line(axis, color, radius, tick, labels_visible)
# draw the axis line and labels
self.draw_axis_line(axis, color, ticks[0], ticks[-1], labels_visible)
