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OSM-binary
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Document more of the API for BinaryParser.

This commit is contained in:
Scott Crosby 2010-09-08 07:48:54 -05:00
parent e60be5b100
commit a1b2112264
1 changed files with 9 additions and 2 deletions
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11
src.java/crosby/binary/BinaryParser.java
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@ -18,6 +18,7 @@ public abstract class BinaryParser implements BlockReaderAdapter {
protected int date_granularity;
private String strings[];
/** Take a Info protocol buffer containing a date and convert it into a java Date object */
protected Date getDate(Osmformat.Info info) {
if (info.hasTimestamp()) {
return new Date(date_granularity * (long) info.getTimestamp());
@ -70,18 +71,19 @@ public abstract class BinaryParser implements BlockReaderAdapter {
}
/** Convert a latitude value stored in a protobuf into a double, compensating for granularity and latitude offset */
public double parseLat(long degree) {
// Support non-zero offsets. (We don't currently generate them)
return (granularity * degree + lat_offset) * .000000001;
}
/** Convert a longitude value stored in a protobuf into a double, compensating for granularity and longitude offset */
public double parseLon(long degree) {
// Support non-zero offsets. (We don't currently generate them)
return (granularity * degree + lon_offset) * .000000001;
}
/** Parse a Primitive block (containing a string table, other paramaters, and PrimitiveGroups */
public void parse(Osmformat.PrimitiveBlock block) {
Osmformat.StringTable stablemessage = block.getStringtable();
strings = new String[stablemessage.getSCount()];
@ -106,10 +108,15 @@ public abstract class BinaryParser implements BlockReaderAdapter {
}
}
/** Parse a list of Relation protocol buffers and send the resulting relations to a sink. */
protected abstract void parseRelations(List<Osmformat.Relation> rels);
/** Parse a DenseNode protocol buffer and send the resulting nodes to a sink. */
protected abstract void parseDense(Osmformat.DenseNodes nodes);
/** Parse a list of Node protocol buffers and send the resulting nodes to a sink. */
protected abstract void parseNodes(List<Osmformat.Node> nodes);
/** Parse a list of Way protocol buffers and send the resulting ways to a sink. */
protected abstract void parseWays(List<Osmformat.Way> ways);
/** Parse a header message. */
protected abstract void parse(Osmformat.HeaderBlock header);
}