Add Const: Difference between revisions

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[[Category:Block Docs]]
[[Category:Block Docs]]
Adds a constant value to each item that passes though.  output[m] = input[m] + constant vector.
This block adds a constant value to each item that passes through it.   
output[m] = input[m] + constant vector


== Parameters ==
== Parameters ==
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
; IO Type
: Supported data types
:* Complex
:* Float
:* Int
:* Short


; Constant (''R'')
; Constant (''R'')
: Description of parameter, provide any tips or recommended values. Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).
: The value to be added to the input stream. It must be of the same type as the block IO type.
 
; Vec Length
: Length of the vector


== Example Flowgraph ==
== Example Flowgraph ==


Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
This flowgraph shows the use of the Add Const and the Multiply blocks to create an amplitude modulated signal.
 
[[File:Multiply_block_fg.png|600px]]
 
[[File:Multiply_Block_out.png|600px]]


== Source Files ==
== Source Files ==


; C++ files
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_bb_impl.cc add_const_bb_impl.cc]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_cc_impl.cc add_const_cc_impl.cc]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_ff_impl.cc add_const_ff_impl.cc]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_ii_impl.cc add_const_ii_impl.cc]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_ss_impl.cc add_const_ss_impl.cc]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_v_impl.cc add_const_v_impl.cc]


; Header files
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_bb_impl.h add_const_bb_impl.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_cc_impl.h add_const_cc_impl.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_ff_impl.h add_const_ff_impl.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_ii_impl.h add_const_ii_impl.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_ss_impl.h add_const_ss_impl.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/lib/add_const_v_impl.h add_const_v_impl.h]


; Public header files
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/include/gnuradio/blocks/add_const_bb.h add_const_bb.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/include/gnuradio/blocks/add_const_cc.h add_const_cc.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/include/gnuradio/blocks/add_const_ff.h add_const_ff.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/include/gnuradio/blocks/add_const_ii.h add_const_ii.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/include/gnuradio/blocks/add_const_ss.h add_const_ss.h]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/include/gnuradio/blocks/add_const_v.h add_const_v.h]


; Block definition
; Block definition
: [https://github.com/gnuradio/gnuradio TODO]
: [https://github.com/gnuradio/gnuradio/blob/main/gr-blocks/grc/blocks_add_const_vxx.block.yml blocks_add_const_vxx.block.yml]

Latest revision as of 09:30, 25 August 2022

This block adds a constant value to each item that passes through it. output[m] = input[m] + constant vector

Parameters

(R): Run-time adjustable

IO Type
Supported data types
  • Complex
  • Float
  • Int
  • Short
Constant (R)
The value to be added to the input stream. It must be of the same type as the block IO type.
Vec Length
Length of the vector

Example Flowgraph

This flowgraph shows the use of the Add Const and the Multiply blocks to create an amplitude modulated signal.

Multiply block fg.png

Multiply Block out.png

Source Files

C++ files
add_const_bb_impl.cc
add_const_cc_impl.cc
add_const_ff_impl.cc
add_const_ii_impl.cc
add_const_ss_impl.cc
add_const_v_impl.cc
Header files
add_const_bb_impl.h
add_const_cc_impl.h
add_const_ff_impl.h
add_const_ii_impl.h
add_const_ss_impl.h
add_const_v_impl.h
Public header files
add_const_bb.h
add_const_cc.h
add_const_ff.h
add_const_ii.h
add_const_ss.h
add_const_v.h
Block definition
blocks_add_const_vxx.block.yml
Retrieved from "https://wiki.gnuradio.org/index.php?title=Add_Const&oldid=12533"