internal static com.epl.geometry.Geometry PointTaggedText(int import_flags, com.epl.geometry.WktParser wkt_parser)
{
com.epl.geometry.Point point = new com.epl.geometry.Point();
int current_token = wkt_parser.NextToken();
if (current_token == com.epl.geometry.WktParser.WktToken.attribute_z)
{
point.AddAttribute(com.epl.geometry.VertexDescription.Semantics.Z);
wkt_parser.NextToken();
}
else
{
if (current_token == com.epl.geometry.WktParser.WktToken.attribute_m)
{
point.AddAttribute(com.epl.geometry.VertexDescription.Semantics.M);
wkt_parser.NextToken();
}
else
{
if (current_token == com.epl.geometry.WktParser.WktToken.attribute_zm)
{
point.AddAttribute(com.epl.geometry.VertexDescription.Semantics.Z);
point.AddAttribute(com.epl.geometry.VertexDescription.Semantics.M);
wkt_parser.NextToken();
}
}
}
// At start of PointText
current_token = wkt_parser.CurrentToken();
if (current_token != com.epl.geometry.WktParser.WktToken.empty)
{
wkt_parser.NextToken();
double x = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
double y = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
point.SetXY(x, y);
if (wkt_parser.HasZs())
{
double z = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
point.SetZ(z);
}
if (wkt_parser.HasMs())
{
double m = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
point.SetM(m);
}
}
return(point);
}
internal static int PointText(com.epl.geometry.AttributeStreamOfDbl zs, com.epl.geometry.AttributeStreamOfDbl ms, com.epl.geometry.AttributeStreamOfDbl position, com.epl.geometry.WktParser wkt_parser)
{
// At start of PointText
int current_token = wkt_parser.CurrentToken();
if (current_token == com.epl.geometry.WktParser.WktToken.empty)
{
return(0);
}
if (current_token == com.epl.geometry.WktParser.WktToken.left_paren)
{
wkt_parser.NextToken();
}
// ogc standard
// At start of x
double x = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
double y = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
double z = com.epl.geometry.NumberUtils.TheNaN;
double m = com.epl.geometry.NumberUtils.TheNaN;
if (zs != null)
{
z = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
}
if (ms != null)
{
m = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
}
AddToStreams(zs, ms, position, x, y, z, m);
return(1);
}
internal static int LineStringText(bool b_ring, com.epl.geometry.AttributeStreamOfDbl zs, com.epl.geometry.AttributeStreamOfDbl ms, com.epl.geometry.AttributeStreamOfDbl position, com.epl.geometry.AttributeStreamOfInt32 paths, com.epl.geometry.AttributeStreamOfInt8 path_flags
, com.epl.geometry.WktParser wkt_parser)
{
// At start of LineStringText
int current_token = wkt_parser.CurrentToken();
int point_count = 0;
if (current_token == com.epl.geometry.WktParser.WktToken.empty)
{
return(point_count);
}
bool b_start_path = true;
double startx = com.epl.geometry.NumberUtils.TheNaN;
double starty = com.epl.geometry.NumberUtils.TheNaN;
double startz = com.epl.geometry.NumberUtils.TheNaN;
double startm = com.epl.geometry.NumberUtils.TheNaN;
current_token = wkt_parser.NextToken();
while (current_token != com.epl.geometry.WktParser.WktToken.right_paren)
{
// At start of x
double x = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
double y = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
double z = com.epl.geometry.NumberUtils.TheNaN;
double m = com.epl.geometry.NumberUtils.TheNaN;
if (wkt_parser.HasZs())
{
z = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
}
if (wkt_parser.HasMs())
{
m = wkt_parser.CurrentNumericLiteral();
wkt_parser.NextToken();
}
current_token = wkt_parser.CurrentToken();
bool b_add_point = true;
if (b_ring && point_count >= 2 && current_token == com.epl.geometry.WktParser.WktToken.right_paren)
{
// If the last point in the ring is not equal to the start
// point, then let's add it.
if ((startx == x || (com.epl.geometry.NumberUtils.IsNaN(startx) && com.epl.geometry.NumberUtils.IsNaN(x))) && (starty == y || (com.epl.geometry.NumberUtils.IsNaN(starty) && com.epl.geometry.NumberUtils.IsNaN(y))) && (!wkt_parser.HasZs() || startz == z || (com.epl.geometry.NumberUtils
.IsNaN(startz) && com.epl.geometry.NumberUtils.IsNaN(z))) && (!wkt_parser.HasMs() || startm == m || (com.epl.geometry.NumberUtils.IsNaN(startm) && com.epl.geometry.NumberUtils.IsNaN(m))))
{
b_add_point = false;
}
}
if (b_add_point)
{
if (b_start_path)
{
b_start_path = false;
startx = x;
starty = y;
startz = z;
startm = m;
}
point_count++;
AddToStreams(zs, ms, position, x, y, z, m);
}
}
if (point_count == 1)
{
point_count++;
AddToStreams(zs, ms, position, startx, starty, startz, startm);
}
paths.Add(position.Size() / 2);
path_flags.Add(unchecked ((byte)0));
return(point_count);
}
