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Add usage message when script is run without arguments #1

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Add usage message when script is run without arguments #1

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14 changes: 10 additions & 4 deletions scripts/world_create.py
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Original file line number Diff line number Diff line change
Expand Up @@ -225,13 +225,19 @@ def read_template(temp_file_name):

if __name__ == '__main__':

arg_list = sys.argv
# Check for required command-line argument
if len(sys.argv) < 2:
print("Usage: world_create.py <world_name> [invert]")
print(" <world_name> : name of the world file to create (e.g., my_world.world)")
print(" [invert] : optional flag to invert image (default: no inversion)")
sys.exit(1)

arg_list = sys.argv
world_name = arg_list[1]
invert = False
if (len(arg_list) > 2):
if len(arg_list) > 2:
flag = arg_list[2]
if (flag == "invert"):
if flag == "invert":
invert = True

rospack = rospkg.RosPack()
Expand All @@ -251,4 +257,4 @@ def read_template(temp_file_name):
# Double inversion for image preservation

# rescale_and_resize(heightmap_path, img_size)
print('Done')
print('Done')