def get_thread_thumb_info(bbox_list, theta_list, thumbsize, img_size):
r"""
Args:
bbox_list (list):
theta_list (list):
thumbsize (?):
img_size (?):
CommandLine:
python -m guitool.api_thumb_delegate --test-get_thread_thumb_info
Example:
>>> # ENABLE_DOCTEST
>>> from guitool.api_thumb_delegate import * # NOQA
>>> # build test data
>>> bbox_list = [(100, 50, 400, 200)]
>>> theta_list = [0]
>>> thumbsize = 128
>>> img_size = 600, 300
>>> # execute function
>>> result = get_thread_thumb_info(bbox_list, theta_list, thumbsize, img_size)
>>> # verify results
>>> print(result)
((128, 64), [[[21, 11], [107, 11], [107, 53], [21, 53], [21, 11]]])
"""
theta_list = [theta_list] if not ut.is_listlike(theta_list) else theta_list
max_dsize = (thumbsize, thumbsize)
dsize, sx, sy = vt.resized_clamped_thumb_dims(img_size, max_dsize)
# Compute new verts list
new_verts_list = list(vt.scaled_verts_from_bbox_gen(bbox_list, theta_list, sx, sy))
return dsize, new_verts_list
def draw_thumb_helper(tup):
thumbsize, gpath, orient, bbox_list, theta_list = tup
# time consuming
# img = vt.imread(gpath, orient=orient)
img = vt.imread(gpath)
(gh, gw) = img.shape[0:2]
img_size = (gw, gh)
if isinstance(thumbsize, int):
max_dsize = (thumbsize, thumbsize)
dsize, sx, sy = vt.resized_clamped_thumb_dims(img_size, max_dsize)
elif isinstance(thumbsize, tuple) and len(thumbsize) == 2:
th, tw = thumbsize
dsize, sx, sy = thumbsize, tw / gw, th / gh
else:
raise ValueError('Incompatible thumbsize')
new_verts_list = list(vt.scaled_verts_from_bbox_gen(bbox_list, theta_list, sx, sy))
# -----------------
# Actual computation
thumb = vt.resize(img, dsize)
orange_bgr = (0, 128, 255)
for new_verts in new_verts_list:
thumb = vt.draw_verts(thumb, new_verts, color=orange_bgr, thickness=2)
width, height = dsize
return thumb, width, height
