Constructor
new SignalDisplay(options)
Parameters:
| Name |
Type |
Description |
options |
Object
|
Override default parameters.
Properties
| Name |
Type |
Attributes |
Default |
Description |
color |
String
|
<optional>
|
'#00e600'
|
Color of the signal. |
min |
Number
|
<optional>
|
-1
|
Minimum value represented in the canvas.
dynamic parameter |
max |
Number
|
<optional>
|
1
|
Maximum value represented in the canvas.
dynamic parameter |
width |
Number
|
<optional>
|
300
|
Width of the canvas.
dynamic parameter |
height |
Number
|
<optional>
|
150
|
Height of the canvas.
dynamic parameter |
container |
Element
|
CSSSelector
|
<optional>
|
null
|
Container element
in which to insert the canvas. constant parameter |
canvas |
Element
|
CSSSelector
|
<optional>
|
null
|
Canvas element
in which to draw. constant parameter |
duration |
Number
|
<optional>
|
1
|
Duration (in seconds) represented in
the canvas. This parameter only exists for operators that display several
consecutive frames on the canvas. dynamic parameter |
referenceTime |
Number
|
<optional>
|
null
|
Optionnal reference time the
display should considerer as the origin. Is only usefull when synchronizing
several display using the DisplaySync class. This parameter only exists
for operators that display several consecutive frames on the canvas. |
|
- Source:
Example
const eventIn = new lfo.source.EventIn({
frameType: 'signal',
sampleRate: 8,
frameSize: 4,
});
const signalDisplay = new lfo.sink.SignalDisplay({
canvas: '#signal-canvas',
});
eventIn.connect(signalDisplay);
eventIn.start();
// push triangle signal in the graph
eventIn.process(0, [0, 0.5, 1, 0.5]);
eventIn.process(0.5, [0, -0.5, -1, -0.5]);
// ...