Class: Sensor_msgs::RegionOfInterest

Inherits:
ROS::Message
  • Object
show all
Defined in:
lib/sensor_msgs/RegionOfInterest.rb

Constant Summary collapse

@@struct_L4C = 
::ROS::Struct.new("L4C")
@@struct_L = 
::ROS::Struct.new("L")
@@slot_types = 
['uint32','uint32','uint32','uint32','bool']

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ RegionOfInterest

Constructor. You can set the default values using keyword operators.

Parameters:

  • args (Hash) (defaults to: {}) —

    keyword for initializing values

Options Hash (args):

  • :x_offset (uint32) —

    initialize value

  • :y_offset (uint32) —

    initialize value

  • :height (uint32) —

    initialize value

  • :width (uint32) —

    initialize value

  • :do_rectify (bool) —

    initialize value



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 58

def initialize(args={})
  # message fields cannot be None, assign default values for those that are
  if args[:x_offset]
    @x_offset = args[:x_offset]
  else
    @x_offset = 0
  end
  if args[:y_offset]
    @y_offset = args[:y_offset]
  else
    @y_offset = 0
  end
  if args[:height]
    @height = args[:height]
  else
    @height = 0
  end
  if args[:width]
    @width = args[:width]
  else
    @width = 0
  end
  if args[:do_rectify]
    @do_rectify = args[:do_rectify]
  else
    @do_rectify = false
  end
end

Instance Attribute Details

#do_rectify ⇒ Object

Returns the value of attribute do_rectify.



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 43

def do_rectify
  @do_rectify
end

#height ⇒ Object

Returns the value of attribute height.



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 43

def height
  @height
end

#width ⇒ Object

Returns the value of attribute width.



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 43

def width
  @width
end

#x_offset ⇒ Object

Returns the value of attribute x_offset.



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 43

def x_offset
  @x_offset
end

#y_offset ⇒ Object

Returns the value of attribute y_offset.



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 43

def y_offset
  @y_offset
end

Class Method Details

.md5sum ⇒ Object 



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 8

def self.md5sum
  "bdb633039d588fcccb441a4d43ccfe09"
end

.type ⇒ Object 



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 12

def self.type
  "sensor_msgs/RegionOfInterest"
end

Instance Method Details

#_get_types ⇒ String

internal API method

Returns:

  • (String) —

    Message type string.



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 89

def _get_types
  @slot_types
end

#deserialize(str) ⇒ Object

unpack serialized message in str into this message instance @param [String] str: byte array of serialized message



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 106

def deserialize(str)

  begin
    end_point = 0
    start = end_point
    end_point += ROS::Struct::calc_size('L4C')
    (@x_offset, @y_offset, @height, @width, @do_rectify,) = @@struct_L4C.unpack(str[start..(end_point-1)])
    @do_rectify = bool(@do_rectify)
    return self
  rescue => exception
    raise "message DeserializationError: #{exception}" #most likely buffer underfill
  end
end

#has_header? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 16

def has_header?
  false
end

#message_definition ⇒ Object 



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 20

def message_definition
  "# This message is used to specify a region of interest within an image.
#
# When used to specify the ROI setting of the camera when the image was
# taken, the height and width fields should either match the height and
# width fields for the associated image; or height = width = 0
# indicates that the full resolution image was captured.

uint32 x_offset  # Leftmost pixel of the ROI
               # (0 if the ROI includes the left edge of the image)
uint32 y_offset  # Topmost pixel of the ROI
               # (0 if the ROI includes the top edge of the image)
uint32 height    # Height of ROI
uint32 width     # Width of ROI

# True if a distinct rectified ROI should be calculated from the \"raw\"
# ROI in this message. Typically this should be False if the full image
# is captured (ROI not used), and True if a subwindow is captured (ROI
# used).
bool do_rectify

"
end

#serialize(buff) ⇒ Object

serialize message into buffer

Parameters:

  • buff (IO) —

    buffer



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# File 'lib/sensor_msgs/RegionOfInterest.rb', line 95

def serialize(buff)
  begin
    buff.write(@@struct_L4C.pack(@x_offset, @y_offset, @height, @width, @do_rectify))
  rescue => exception
    raise "some erro in serialize: #{exception}"

  end
end