static float DecodeDegreesMinutesSeconds(Tokenizer tokenizer)
{
var degrees = tokenizer.NextToken();
while (!degrees.IsNumeric) degrees = tokenizer.NextToken();
var minutes = tokenizer.NextToken();
var seconds = tokenizer.NextToken();
if ((degrees.Value as float? == null) || (minutes.Value as float? == null) || (seconds.Value as float? == null)) throw new ApplicationException("OverlayParser-DMSCoordinate: Values for Latitude or Longitude is not present in overlay file at line " + degrees.LineNumber); //Might change
return (float) ((degrees.Value as float?) + ((minutes.Value as float?) / 60f) + ((seconds.Value as float?) / 3600f));
}
static Geo GetPoint(Tokenizer tokenizer)
{
var x = tokenizer.NextToken();
while (!x.IsNumeric) x = tokenizer.NextToken();
var y = tokenizer.NextToken();
if ((x.Value == null) || (y.Value == null)) throw new ApplicationException("OverlayParser.GetPoint: Values for Latitude or Longitude is not present in Overlay File " + x.LineReader.FileName + " at line " + x.LineNumber);
return new Geo((double)((float?)x.Value), (double)((float?)y.Value));
}
static Geo[] GetPoints(Tokenizer tokenizer, OverlayLocationMode locationMode, Geo lastPoint)
{
var resultPoints = new List<Geo>();
if (lastPoint != null) resultPoints.Add(lastPoint);
while ((tokenizer.Peek() != null) && (tokenizer.Peek().Value is float))
{
Geo curPoint;
switch (locationMode)
{
case OverlayLocationMode.XYPair:
if (tokenizer.Count < 1) throw new ApplicationException("OverlayParser.getInitialPoint: missing information for coordinates\n");
curPoint = GetValueInDegrees(tokenizer);
resultPoints.Add(curPoint);
break;
case OverlayLocationMode.LatLong:
if (tokenizer.Count < 1) throw new ApplicationException("OverlayParser.getInitialPoint: missing information for coordinates\n");
curPoint = GetPoint(tokenizer);
resultPoints.Add(curPoint);
break;
case OverlayLocationMode.DegreesMinutesSeconds:
if (tokenizer.Count < 2) throw new ApplicationException("OverlayParser.getInitialPoint: missing information for coordinates\n");
curPoint = new Geo(DecodeDegreesMinutesSeconds(tokenizer), DecodeDegreesMinutesSeconds(tokenizer));
resultPoints.Add(curPoint);
break;
default:
throw new ApplicationException("OverlayParser.getPoints: Location Mode " + locationMode + " is unknown\n");
}
}
return resultPoints.ToArray();
}
static Geo GetValueInDegrees(Tokenizer tokenizer)
{
//Dave will tell me to do this with Geo Class
var x = tokenizer.NextToken();
while (!x.IsNumeric) x = tokenizer.NextToken();
var y = tokenizer.NextToken();
if ((x.Value == null) || (y.Value == null)) throw new ApplicationException("OverlayParser.GetValueInDegrees: Values for Latitude or Longitude is not present in Overlay File " + x.LineReader.FileName + " at line " + x.LineNumber);
return new Geo(0, 0);
}
public static OverlayShape[] Parse(string overlayFileName, out string sourceOverlay, out string expandedRangeKm)
{
sourceOverlay = null;
expandedRangeKm = null;
var curColor = Colors.Red;
var shapes = new List<OverlayShape>();
var locationMode = OverlayLocationMode.LatLong;
var curState = OverlayParseState.Initialization;
Geo lastPoint = null;
var curStyle = LineStyle.Solid;
var reader = new LineReader();
var tokenizer = new Tokenizer {CommentIndicators = new[] {"#"}};
var commentSplit = new[] { "=" };
reader.FileName = overlayFileName;
tokenizer.LineReader = reader;
Token curToken;
while ((curToken = tokenizer.NextToken()) != null)
{
Geo[] curPoints;
switch (curState)
{
case OverlayParseState.Initialization:
switch (((string) curToken.Value).ToLower())
{
case OverlayKeywords.Comment:
var originalComment = reader.Lines[curToken.LineNumber];
if (originalComment.StartsWith("# "))
{
var step1 = originalComment.Substring(2, originalComment.Length - 2).Trim();
var step2 = step1.Split(commentSplit, StringSplitOptions.RemoveEmptyEntries);
if (step2.Length != 2) break;
switch (step2[0])
{
case "sourceOverlay":
sourceOverlay = step2[1];
break;
case "expandedRangeKm":
expandedRangeKm = step2[1];
break;
}
}
break;
case OverlayKeywords.Move:
curPoints = GetPoints(tokenizer, locationMode, null);
lastPoint = curPoints.Last();
curState = OverlayParseState.ShapeBuild; //Change State to ShapeBuild
break;
case OverlayKeywords.Absolute:
break;
case OverlayKeywords.Relative:
throw new ApplicationException("Unimplemented position mode: Relative");
case OverlayKeywords.DegreesMinutesSeconds:
locationMode = OverlayLocationMode.DegreesMinutesSeconds;
break;
case OverlayKeywords.LatLong:
locationMode = OverlayLocationMode.LatLong;
break;
case OverlayKeywords.XYPair:
locationMode = OverlayLocationMode.XYPair;
break;
case OverlayKeywords.Color:
if (tokenizer.Count < 3) throw new ApplicationException("OverlayParser.Parse: Not all color information are found\n");
var red = tokenizer.NextToken().Value as float?;
var green = tokenizer.NextToken().Value as float?;
var blue = tokenizer.NextToken().Value as float?;
if ((red == null) || (green == null) || (blue == null)) throw new ApplicationException("OverlayParser: Invalid color definition at line " + curToken.LineNumber);
curColor = Color.FromArgb(255, (byte) red, (byte) green, (byte) blue);
break;
#if false
// DA: Removed all support for color because NUWC decided to throw colors in new and interesting places in overlay files
// Color keywords are completely stripped out by the tokenizer
case OverlayKeywords.Red:
curColor = Colors.Red;
break;
case OverlayKeywords.Green:
curColor = Colors.Green;
break;
case OverlayKeywords.Purple:
curColor = Colors.Purple;
break;
case OverlayKeywords.Yellow:
curColor = Colors.Yellow;
break;
case OverlayKeywords.White:
curColor = Colors.White;
break;
case OverlayKeywords.Orange:
curColor = Colors.Orange;
break;
case OverlayKeywords.Blue:
curColor = Colors.Blue;
break;
case OverlayKeywords.Cyan:
curColor = Colors.Cyan;
break;
#endif
case OverlayKeywords.Origin:
tokenizer.DiscardToEndOfLine();
break;
case OverlayKeywords.Solid:
curStyle = LineStyle.Solid;
break;
case OverlayKeywords.Dash:
curStyle = LineStyle.Dash;
break;
case OverlayKeywords.DashDot:
curStyle = LineStyle.DashDot;
break;
case OverlayKeywords.Dot:
curStyle = LineStyle.Dot;
break;
case OverlayKeywords.Point:
tokenizer.DiscardNext();
break;
case OverlayKeywords.Red:
curColor = Colors.Red;
break;
case OverlayKeywords.Green:
curColor = Colors.Green;
break;
case OverlayKeywords.Purple:
curColor = Colors.Purple;
break;
case OverlayKeywords.Yellow:
curColor = Colors.Yellow;
break;
case OverlayKeywords.White:
curColor = Colors.White;
break;
case OverlayKeywords.Orange:
curColor = Colors.Orange;
break;
case OverlayKeywords.Blue:
curColor = Colors.Blue;
break;
case OverlayKeywords.Cyan:
curColor = Colors.Cyan;
break;
default:
throw new FormatException("OverlayParser: Unknown token at line " + curToken.LineNumber + ": " + curToken.Value);
} //Initialization Switch(curToken)
break; //break for the Initialization Case
case OverlayParseState.ShapeBuild:
float curSize;
int curLinenumber;
OverlayShape curShape;
switch (curToken.Value as string)
{
case OverlayKeywords.Move:
//Submit Shape and Points
//continue in ShapeBuild
curPoints = GetPoints(tokenizer, locationMode, null);
lastPoint = curPoints.Last();
break;
case OverlayKeywords.Lines:
curLinenumber = curToken.LineNumber;
if (curLinenumber == tokenizer.Peek().LineNumber) curSize = (float) ((float?) tokenizer.NextToken().Value);
else curSize = 2f;
curShape = new OverlayLineSegments(GetPoints(tokenizer, locationMode, lastPoint), curColor, curSize, curStyle)
{
LineStyle = curStyle
};
shapes.Add(curShape);
break;
case OverlayKeywords.Point:
curLinenumber = curToken.LineNumber;
if (curLinenumber == tokenizer.Peek().LineNumber) curSize = (float) ((float?) tokenizer.NextToken().Value);
else curSize = 2;
curShape = new OverlayPoint(lastPoint, curColor, curSize);
shapes.Add(curShape);
break;
case OverlayKeywords.Circle:
//get radius
//its the previous point
curSize = (float) ((float?) tokenizer.NextToken().Value);
curShape = new OverlayCircle(lastPoint, curColor, curStyle, curSize * YardsToMeters)
{
LineStyle = curStyle
};
shapes.Add(curShape);
//SubmitShape(PositionMode);
curState = OverlayParseState.Initialization;
break;
case OverlayKeywords.Label:
//shapes.Add(new OverlayLabel(lastPoint, curColor, tokenizer.NextToken().Value as string));
tokenizer.NextToken();
break;
case OverlayKeywords.Red:
curColor = Colors.Red;
break;
case OverlayKeywords.Green:
curColor = Colors.Green;
break;
case OverlayKeywords.Purple:
curColor = Colors.Purple;
break;
case OverlayKeywords.Yellow:
curColor = Colors.Yellow;
break;
case OverlayKeywords.White:
curColor = Colors.White;
break;
case OverlayKeywords.Orange:
curColor = Colors.Orange;
break;
case OverlayKeywords.Blue:
curColor = Colors.Blue;
break;
case OverlayKeywords.Cyan:
curColor = Colors.Cyan;
break;
case OverlayKeywords.Comment:
case OverlayKeywords.Origin:
break;
case OverlayKeywords.Solid:
curStyle = LineStyle.Solid;
break;
case OverlayKeywords.Dash:
curStyle = LineStyle.Dash;
break;
case OverlayKeywords.DashDot:
curStyle = LineStyle.DashDot;
break;
case OverlayKeywords.Dot:
curStyle = LineStyle.Dot;
break;
case OverlayKeywords.Color:
if (tokenizer.Count < 3) throw new ApplicationException("OverlayParser.Parse: Not all color information are found\n");
var red = tokenizer.NextToken().Value as float?;
var green = tokenizer.NextToken().Value as float?;
var blue = tokenizer.NextToken().Value as float?;
if ((red == null) || (green == null) || (blue == null)) throw new ApplicationException("OverlayParser: Invalid color definition at line " + curToken.LineNumber);
curColor = Color.FromArgb(255, (byte)red, (byte)green, (byte)blue);
break;
default:
throw new FormatException("OverlayParser: Unknown token at line " + curToken.LineNumber + ": " + curToken.Value);
} //Switch for shape Build
break;
default:
throw new ApplicationException("OverlayParser.Parse: Unknown state!\n");
} // switch (curState)
} // while (curToken != null)
return shapes.ToArray();
}
