public static string WriteFeature(IGeoJsonFeatureStyle style, IFeatureDataRecord feature)
{
StringBuilder sb = new StringBuilder();
WriteFeature(sb, style, feature);
return(sb.ToString());
}
public static void WriteFeature(StringBuilder sb, IGeoJsonFeatureStyle style, IFeatureDataRecord feature)
{
IGeometry g = style.PreProcessGeometries
? style.GeometryPreProcessor(feature.Geometry)
: feature.Geometry;
sb.Append("{");
sb.Append("\"type\":\"Feature\",");
if (feature.HasOid)
{
sb.Append(JsonUtility.FormatJsonAttribute("id", feature.GetOid()));
sb.Append(",");
}
sb.Append("\"properties\":");
WriteFeatureAttributes(sb, style, feature);
sb.Append(",");
if (style.IncludeBBox)
{
sb.Append("\"bbox\":");
WriteExtents(sb, g.Extents, style.CoordinateNumberFormatString);
sb.Append(",");
}
/* Ideally this should be higher up e.g at the layer level but we dont currently
* have anywhere where we can group features by layer.
* It still complies with the spec but will be considerably more verbose */
if (g.SpatialReference != null || !string.IsNullOrEmpty(g.Srid))
{
sb.Append("\"crs\":");
WriteNamedCrs(sb,
g.SpatialReference != null
? g.SpatialReference.Name
: "EPSG:" + SridMap.DefaultInstance.Process(g.SpatialReference, 0));
sb.Append(",");
}
sb.Append("\"geometry\":");
WriteGeometry(sb, g, style.CoordinateNumberFormatString);
sb.Append("}");
sb.AppendLine();
}
public static void WriteFeature(StringBuilder sb, IGeoJsonFeatureStyle style, IFeatureDataRecord feature)
{
IGeometry g = style.PreProcessGeometries
? style.GeometryPreProcessor(feature.Geometry)
: feature.Geometry;
sb.Append("{");
sb.Append("\"type\":\"Feature\",");
if (feature.HasOid)
{
sb.Append(JsonUtility.FormatJsonAttribute("id", feature.GetOid()));
sb.Append(",");
}
sb.Append("\"properties\":");
WriteFeatureAttributes(sb, style, feature);
sb.Append(",");
if (style.IncludeBBox)
{
sb.Append("\"bbox\":");
WriteExtents(sb, g.Extents, style.CoordinateNumberFormatString);
sb.Append(",");
}
/* Ideally this should be higher up e.g at the layer level but we dont currently
* have anywhere where we can group features by layer.
* It still complies with the spec but will be considerably more verbose */
if (g.SpatialReference != null || !string.IsNullOrEmpty(g.Srid))
{
sb.Append("\"crs\":");
WriteNamedCrs(sb,
g.SpatialReference != null
? g.SpatialReference.Name
: "EPSG:" + SridMap.DefaultInstance.Process(g.SpatialReference, 0));
sb.Append(",");
}
sb.Append("\"geometry\":");
WriteGeometry(sb, g, style.CoordinateNumberFormatString);
sb.Append("}");
sb.AppendLine();
}
private static void WriteFeatureAttributes(StringBuilder sb, IGeoJsonFeatureStyle style,
IFeatureDataRecord feature)
{
sb.Append("{");
if (style.IncludeAttributes)
{
IDictionary <string, object> attributes = style.AttributeExtractionDelegate(feature);
int i = 0;
foreach (KeyValuePair <string, object> kvp in attributes)
{
sb.Append(JsonUtility.FormatJsonAttribute(kvp.Key, kvp.Value));
if (i < attributes.Count - 1)
{
sb.Append(",");
}
i++;
}
}
sb.Append("}");
}
public static string WriteFeature(IGeoJsonFeatureStyle style, IFeatureDataRecord feature)
{
StringBuilder sb = new StringBuilder();
WriteFeature(sb, style, feature);
return sb.ToString();
}
private static void WriteFeatureAttributes(StringBuilder sb, IGeoJsonFeatureStyle style,
IFeatureDataRecord feature)
{
sb.Append("{");
if (style.IncludeAttributes)
{
IDictionary<string, object> attributes = style.AttributeExtractionDelegate(feature);
int i = 0;
foreach (KeyValuePair<string, object> kvp in attributes)
{
sb.Append(JsonUtility.FormatJsonAttribute(kvp.Key, kvp.Value));
if (i < attributes.Count - 1)
sb.Append(",");
i++;
}
}
sb.Append("}");
}
