/// <summary>
/// Use the legacy text interface to build a region.
/// </summary>
/// <param name="textSpec">Legacy style descritption of region</param>
/// <param name="directory">Trace information is deposited here.
/// Use <i>null</i> if no trace is require</param>
/// <returns>A table of HtmIDs or null</returns>
public static Int64[,] Region(String textSpec, string directory){
Int64[,] returnResult;
Region reg = new Region(directory);
Parser par;
Parser.Geometry g;
ArrayList lohis = new ArrayList();
par = new Parser();
par.input = textSpec;
g = par.peekGeometry(); // Peeking into the spec decides what kind of object we build
switch(g){
case Parser.Geometry.Region:
case Parser.Geometry.Convex:
case Parser.Geometry.Rect:
case Parser.Geometry.Circle:
case Parser.Geometry.Poly:
par.buildto(reg); //We give the location of the target object. There parser will assemble the region here
if (par.parse() == false){ // Start the parser. if it returns true, all is well, else error
return null;
}
reg.intersect(false,
HtmState.Instance.minlevel,
HtmState.Instance.maxlevel, lohis); // lohis remains unchanged when called from polygon
break;
case Parser.Geometry.Chull:
par.buildto(reg);
if (par.parse() == false){
return null;
}
reg.intersect(false,
HtmState.Instance.minlevel,
HtmState.Instance.maxlevel, lohis);
break;
case Parser.Geometry.Null:
return null;
}
int rows = lohis.Count/2;
int cols = 2;
int k = 0;
returnResult = new Int64[rows,cols];
for(int i=0; i<rows; i++){
returnResult[i,0] = (Int64) lohis[k++];
returnResult[i,1] = (Int64) lohis[k++];
}
return returnResult;
}
