QT GUI Waterfall Sink: Difference between revisions

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[[Category:Block Docs]]
<!-- QT_GUI_Waterfall_Sink.mediawiki -->
A graphical sink to display multiple signals on a waterfall (spectrogram) plot.
<!-- /dcs/local/share/gnuradio/grc/blocks/qtgui_waterfall_sink_x.block.yml -->
 
A graphical sink to display signals on a waterfall (spectrogram) plot.
The Intensity Min and Max will determine how the colormap represents the range of values
 
== Parameters ==
<b>(R):</b> <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls <b>Run-time adjustable</b>]</span><br>
;Type
:default: complex
:options: [Complex, Float, Complex Message, Float Message]
 
;Name
:default: none
 
;FFT Size
:default: '1024'
:options: ['32','64','128','256','512','1024','2048','4096','8192','16384','32768']
 
;Spectrum Width
:default: 'Full'
:options: [Full, Half]
 
;Window Type
:default: Blackman-harris
:options: [Blackman-harris, Hamming, Hann, Blackman, Rectangular, Kaiser, Flat-top]
 
;Center Frequency (Hz)
:default: '0'
 
;Bandwidth (Hz)
:default: samp_rate
;Intensity Min
:default: '-140'
;Intensity Max
:default: '10'
;Grid
:default: 'No'
:options: ['Yes', 'No']
 
;Number of Inputs
:default: '1'
 
;Update Period
:default: '0.10'
 
;Show Msg Ports
:default: 'No'
:options: ['Yes', 'No']
 
;GUI Hint
:The GUI hint can be used to position the widget within the application. The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. Both the tab specification and the grid position are optional.
 
;Legend
:default: 'Yes'
:options: ['Yes', 'No']
 
;Line 1 Label
:default: none


Note that unlike the other qtgui sinks, this one does not support multiple input streams. We have yet to figure out a good way to display multiple, independent signals on this kind of a plot. If there are any suggestions or examples of this, we would love to see them. Otherwise, to display multiple signals here, it's probably best to sum the signals together and connect that here.
;Axis Labels
:default: 'Yes'
:options: ['Yes', 'No']


Most of the parameters are the same as the [[QT GUI Frequency Sink]]
;Line 1 Color
:options: [Multi Color, White Hot, Black Hot, Incandescent, Sunset, Cool]


The Intensity Min and Max will determine how the colormap represents the range of values
;Line 1 Alpha
:default: '1.0'
;Line 2 Label
:base_key: label1
;Line 2 Color
:base_key: color1
;Line 2 Alpha
:base_key: alpha1
;Line 3 Label
:base_key: label1
;Line 3 Color
:base_key: color1
;Line 3 Alpha
:base_key: alpha1
;Line 4 Label
:base_key: label1
;Line 4 Color
:base_key: color1
;Line 4 Alpha
:base_key: alpha1
;Line 5 Label
:base_key: label1
;Line 5 Color
:base_key: color1
;Line 5 Alpha
:base_key: alpha1
;Line 6 Label
:base_key: label1
;Line 6 Color
:base_key: color1
;Line 6 Alpha
:base_key: alpha1
;Line 7 Label
:base_key: label1
;Line 7 Color
:base_key: color1
;Line 7 Alpha
:base_key: alpha1
;Line 8 Label
:base_key: label1
;Line 8 Color
:base_key: color1
;Line 8 Alpha
:base_key: alpha1
;Line 9 Label
:base_key: label1
;Line 9 Color
:base_key: color1
;Line 9 Alpha
:base_key: alpha1
;Line 10 Label
:base_key: label1
;Line 10 Color
:base_key: color1
;Line 10 Alpha
:base_key: alpha1


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


Example of the waterfall in action:
[[File:WBFM_stereo_example_fg.png|800px]]
 
== Example Output ==
 
[[File:WBFM_stereo_example_out.png|800px]]
 
== Source Files ==
 
; C++ files
: [https://github.com/gnuradio/gnuradio TODO]
 
; Header files
: [https://github.com/gnuradio/gnuradio TODO]
 
; Public header files
: [https://github.com/gnuradio/gnuradio TODO]


[[File:Waterfall-ex.png|700px]]
; Block definition
: [https://github.com/gnuradio/gnuradio/blob/main/gr-qtgui/grc/qtgui_waterfall_sink_x.block.yml qtgui_waterfall_sink_x.block.yml]
 
[[Category:Block Docs]]

Latest revision as of 23:18, 8 July 2024


A graphical sink to display signals on a waterfall (spectrogram) plot. The Intensity Min and Max will determine how the colormap represents the range of values

Parameters

(R): Run-time adjustable

Type
default: complex
options: [Complex, Float, Complex Message, Float Message]
Name
default: none
FFT Size
default: '1024'
options: ['32','64','128','256','512','1024','2048','4096','8192','16384','32768']
Spectrum Width
default: 'Full'
options: [Full, Half]
Window Type
default: Blackman-harris
options: [Blackman-harris, Hamming, Hann, Blackman, Rectangular, Kaiser, Flat-top]
Center Frequency (Hz)
default: '0'
Bandwidth (Hz)
default: samp_rate
Intensity Min
default: '-140'
Intensity Max
default: '10'
Grid
default: 'No'
options: ['Yes', 'No']
Number of Inputs
default: '1'
Update Period
default: '0.10'
Show Msg Ports
default: 'No'
options: ['Yes', 'No']
GUI Hint
The GUI hint can be used to position the widget within the application. The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. Both the tab specification and the grid position are optional.
Legend
default: 'Yes'
options: ['Yes', 'No']
Line 1 Label
default: none
Axis Labels
default: 'Yes'
options: ['Yes', 'No']
Line 1 Color
options: [Multi Color, White Hot, Black Hot, Incandescent, Sunset, Cool]
Line 1 Alpha
default: '1.0'
Line 2 Label
base_key: label1
Line 2 Color
base_key: color1
Line 2 Alpha
base_key: alpha1
Line 3 Label
base_key: label1
Line 3 Color
base_key: color1
Line 3 Alpha
base_key: alpha1
Line 4 Label
base_key: label1
Line 4 Color
base_key: color1
Line 4 Alpha
base_key: alpha1
Line 5 Label
base_key: label1
Line 5 Color
base_key: color1
Line 5 Alpha
base_key: alpha1
Line 6 Label
base_key: label1
Line 6 Color
base_key: color1
Line 6 Alpha
base_key: alpha1
Line 7 Label
base_key: label1
Line 7 Color
base_key: color1
Line 7 Alpha
base_key: alpha1
Line 8 Label
base_key: label1
Line 8 Color
base_key: color1
Line 8 Alpha
base_key: alpha1
Line 9 Label
base_key: label1
Line 9 Color
base_key: color1
Line 9 Alpha
base_key: alpha1
Line 10 Label
base_key: label1
Line 10 Color
base_key: color1
Line 10 Alpha
base_key: alpha1

Example Flowgraph

WBFM stereo example fg.png

Example Output

WBFM stereo example out.png

Source Files

C++ files
TODO
Header files
TODO
Public header files
TODO
Block definition
qtgui_waterfall_sink_x.block.yml
Retrieved from "https://wiki.gnuradio.org/index.php?title=QT_GUI_Waterfall_Sink&oldid=14481"