private static async Task SearchForObjectByNameAsync(ReceivedMessage receivedMessage, Match regexMatch, SimbadClient simbadClient)
{
var objectName = regexMatch.Groups["AstroObject"].Value;
var foundObject = simbadClient.FindObjectByName(objectName);
if (foundObject == null)
{
WriteObjectNotFound(receivedMessage, objectName);
return;
}
await WriteObjectDetailsEmbeddedAsync(receivedMessage, foundObject).ConfigureAwait(false);
}
private static async Task SearchForObjectsAroundRaDecAsync(ReceivedMessage receivedMessage, Match regexMatch, SimbadClient simbadClient)
{
RaDecCoordinate centerCoordinates = null;
const float radiusInDegrees = 0.5f;
try
{
if (regexMatch.Groups["CenterOfSearchRA"].Success)
{
centerCoordinates = new RaDecCoordinate(
double.Parse(regexMatch.Groups["CenterOfSearchRA"].Value, CultureInfo.InvariantCulture),
double.Parse(regexMatch.Groups["CenterOfSearchDEC"].Value, CultureInfo.InvariantCulture));
}
else if (regexMatch.Groups["CenterOfSearchName"].Success)
{
var name = regexMatch.Groups["CenterOfSearchName"].Value;
var queryAroundObject = simbadClient.FindObjectByName(name);
if (queryAroundObject == null)
{
await receivedMessage.Channel.SendMessageAsync($"No object with name {name} found in the SIMBAD databse!").ConfigureAwait(false);
return;
}
centerCoordinates = queryAroundObject.RaDecCoordinate;
}
}
finally
{
if (centerCoordinates == null)
{
await receivedMessage.Channel.SendMessageAsync("Could not parse RA/DEC coordinates").ConfigureAwait(false);
}
}
var objectsAroundTarget = simbadClient.QueryAround(centerCoordinates, radiusInDegrees);
var csvString = CsvExporter.AstronomicalObjectsToCsv(objectsAroundTarget);
await receivedMessage.Channel.SendMessageAsync($"Found {objectsAroundTarget.Count} objects around {centerCoordinates} within a radius of {radiusInDegrees}°:").ConfigureAwait(false);
await receivedMessage.Channel.SendMessageAsync(
new SendMessage(
content : null,
new List <Attachment>
{
new SendAttachment
{
Name = "queryResult.csv",
Content = Encoding.ASCII.GetBytes(csvString)
}
})).ConfigureAwait(false);
}
public async Task <bool> ExecuteRegexCommandAsync(ReceivedMessage receivedMessage, Match regexMatch)
{
if (regexMatch.Groups["ObjectName"].Success)
{
var astronomicalObjectName = regexMatch.Groups["ObjectName"].Value;
var simbadClient = new SimbadClient();
var objectResolvedBySimbad = simbadClient.FindObjectByName(astronomicalObjectName);
if (objectResolvedBySimbad == null)
{
await receivedMessage.Channel.SendMessageAsync($"No object with name {astronomicalObjectName} could be found on simbad!").ConfigureAwait(false);
return(true);
}
if (objectResolvedBySimbad.RaDecCoordinate == null)
{
await receivedMessage.Channel.SendMessageAsync($"The object was found, but no Ra / Dec coordinates are known for the object!").ConfigureAwait(false);
return(true);
}
await receivedMessage.Channel.SendMessageAsync("Getting the image from the deep sky survey (DSS) server, one moment...\r\n(The larger the FOV, the longer it takes)").ConfigureAwait(false);
var arcminutesSize =
Math.Max(objectResolvedBySimbad.AngularDimensions != null
? Math.Min(objectResolvedBySimbad.AngularDimensions.MajorAxis * FACTOR_ANGULARSIZE_ARCMINUTES, MAX_ANGULARSIZE_ARCMINUTES)
: DEFAULT_ANGULARSIZE_ARCMINUTES,
MIN_ANGULARSIZE_ARCMINUTES);
var image = DeepSkySurvey.DeepSkySurveyClient.GetImage(
Convert.ToSingle(objectResolvedBySimbad.RaDecCoordinate.RightAscension),
Convert.ToSingle(objectResolvedBySimbad.RaDecCoordinate.Declination),
arcminutesSize.ToString(CultureInfo.InvariantCulture));
await receivedMessage.Channel.SendMessageAsync(new SendMessage(
content : $"Image size: {Math.Round(arcminutesSize, 3)}' x {Math.Round(arcminutesSize, 3)}'",
new List <Attachment>
{
new SendAttachment
{
Name = $"{objectResolvedBySimbad.Name}.jpg",
Content = image
}
})).ConfigureAwait(false);
}
return(true);
}
public void TestFindObjectByName()
{
var objName = "M31";
var simbadClient = new SimbadClient();
var foundObject = simbadClient.FindObjectByName(objName);
}