new SpectrumViewer(paths, containerId)
Parameters:
| Name | Type | Description |
|---|---|---|
paths |
Object | dataPaths object |
containerId |
string | id of graph container |
Methods
_getCalculatedIndex(value) → {float}
Returns the channel corresponding to the given input value (frequency or velocity)
Parameters:
| Name | Type | Description |
|---|---|---|
value |
number | (float) |
Returns:
- Type
- float
_getSelectedSpectrumValue(yData, imin, imax)
Returns integral value of selected area in the spectrum
One case for a graph in radial velocity, one for all other cases
Parameters:
| Name | Type | Description |
|---|---|---|
yData |
* | |
imin |
* | |
imax |
* |
Returns:
_getXData(rlen) → {array}
Returns x axis coordinates. They are calculated from center position and step between each value (CDELT3)
The formula changes according to the type of data on x axis (CTYPE3)
Parameters:
| Name | Type | Description |
|---|---|---|
rlen |
number | number of points on x axis (int) |
Returns:
an array of x values
- Type
- array
_getYData(data) → {array}
Returns an array of ydata from the data passed in parameter.
The parameter array must be reverted if CDELT3 > 0 in case of a frequency
and if CDELT3 < 0 in case of a radial velocity
It is rescaled in case of Sitelle data.
It is returned unchanged in any other case
Parameters:
| Name | Type | Description |
|---|---|---|
data |
array |
Returns:
- Type
- array
getSpectrumChartXAxis() → {Object}
Returns the xaxis of the chart and its datatype
Returns:
an object containing the xaxis and a datatype
- Type
- Object
getYValueAtX(x, spectrumData)
Returns Y value in spectrum data for a given X.
Values are sorted in descending ordre in spectrumData,
Y value is returned as soon as X > spectrumData[i]
Parameters:
| Name | Type | Description |
|---|---|---|
x |
number | X value (float) |
spectrumData |
array | an array of [x,y] tuples |
Returns:
setSampButtonVisible(state)
Toggles samp button visibility
Parameters:
| Name | Type | Description |
|---|---|---|
state |
boolean | status of button visibility |
setViewLinker(viewLinker)
Parameters:
| Name | Type | Description |
|---|---|---|
viewLinker |
ViewLinker | ViewLinker object managing interactions between elements |
sourceTableCall(event)
Called when NED table object triggers an event, refreshes lines display
Parameters:
| Name | Type | Description |
|---|---|---|
event |
Event | event that triggered the call |