def create_lines_with_colors(point_list: PointList,
color_list: Sequence[Color],
line_width: float = 1):
if line_width == 1:
return create_line_generic_with_colors(point_list, color_list,
gl.GL_LINES, line_width)
else:
triangle_point_list = []
new_color_list = []
for i in range(1, len(point_list), 2):
start_x = point_list[i - 1][0]
start_y = point_list[i - 1][1]
end_x = point_list[i][0]
end_y = point_list[i][1]
color1 = color_list[i - 1]
color2 = color_list[i]
points = _get_points_for_thick_line(start_x, start_y, end_x, end_y,
line_width)
new_color_list += color1, color1, color2, color2
triangle_point_list += points[1], points[0], points[2], points[3]
shape = create_triangles_filled_with_colors(
triangle_point_list, new_color_list)
return shape
def create_line(start_x: float,
start_y: float,
end_x: float,
end_y: float,
color: Color,
line_width: float = 1) -> Shape:
"""
Create a line to be rendered later. This works faster than draw_line because
the vertexes are only loaded to the graphics card once, rather than each frame.
:param float start_x:
:param float start_y:
:param float end_x:
:param float end_y:
:param Color color:
:param float line_width:
:Returns Shape:
"""
points = _get_points_for_thick_line(start_x, start_y, end_x, end_y,
line_width)
color_list = [color, color, color, color]
triangle_point_list = points[1], points[0], points[2], points[3]
shape = create_triangles_filled_with_colors(triangle_point_list,
color_list)
return shape
def create_line_strip(point_list: PointList,
color: Color,
line_width: float = 1):
"""
Create a multi-point line to be rendered later. This works faster than draw_line because
the vertexes are only loaded to the graphics card once, rather than each frame.
:param PointList point_list:
:param Color color:
:param PointList line_width:
:Returns Shape:
"""
if line_width == 1:
return create_line_generic(point_list, color, gl.GL_LINE_STRIP,
line_width)
else:
triangle_point_list = []
new_color_list = []
for i in range(1, len(point_list)):
start_x = point_list[i - 1][0]
start_y = point_list[i - 1][1]
end_x = point_list[i][0]
end_y = point_list[i][1]
color1 = color
color2 = color
points = _get_points_for_thick_line(start_x, start_y, end_x, end_y,
line_width)
new_color_list += color1, color2, color1, color2
triangle_point_list += points[1], points[0], points[2], points[3]
shape = create_triangles_filled_with_colors(
triangle_point_list, new_color_list)
return shape
