msg/IntegerRange Documentation

File: rcl_interfaces/msg/IntegerRange.msg

# Represents bounds and a step value for an integer typed parameter.

# Start value for valid values, inclusive.

int64 from_value

# End value for valid values, inclusive.

int64 to_value

# Size of valid steps between the from and to bound.

# A step value of zero implies a continuous range of values. Ideally, the step

# would be less than or equal to the distance between the bounds, as well as an

# even multiple of the distance between the bounds, but neither are required.

# If the absolute value of the step is larger than or equal to the distance

# between the two bounds, then the bounds will be the only valid values. e.g. if

# the range is defined as {from_value: 1, to_value: 2, step: 5} then the valid

# values will be 1 and 2.

# If the step is less than the distance between the bounds, but the distance is

# not a multiple of the step, then the "to" bound will always be a valid value,

# e.g. if the range is defined as {from_value: 2, to_value: 5, step: 2} then

# the valid values will be 2, 4, and 5.

uint64 step

int64 from_value
int64 to_value
uint64 step