53 lines
1.9 KiB
Java
53 lines
1.9 KiB
Java
package btools.mapcreator;
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import btools.util.DiffCoderDataInputStream;
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import btools.util.DiffCoderDataOutputStream;
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/**
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* Container for node data on the preprocessor level
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*
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* @author ab
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*/
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public class NodeData extends MapCreatorBase
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{
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public long nid;
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public int ilon;
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public int ilat;
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public byte[] description;
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public short selev = Short.MIN_VALUE;
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public NodeData( long id, double lon, double lat )
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{
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nid = id;
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ilat = (int)( ( lat + 90. )*1000000. + 0.5);
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ilon = (int)( ( lon + 180. )*1000000. + 0.5);
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}
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public NodeData( DiffCoderDataInputStream dis ) throws Exception
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{
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nid = dis.readDiffed( 0 );
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ilon = (int)dis.readDiffed( 1 );
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ilat = (int)dis.readDiffed( 2 );
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int mode = dis.readByte();
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if ( ( mode & 1 ) != 0 ) { int dlen = dis.read(); description = new byte[dlen]; dis.readFully( description ); }
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if ( ( mode & 2 ) != 0 ) selev = dis.readShort();
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}
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public void writeTo( DiffCoderDataOutputStream dos ) throws Exception
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{
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dos.writeDiffed( nid, 0 );
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dos.writeDiffed( ilon, 1 );
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dos.writeDiffed( ilat, 2 );
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if (description != null && description.length > Byte.MAX_VALUE) {
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System.err.printf("Node id (%s): description length (%d) is longer then maximum allowed (%d). The description will NOT be written.", nid, description.length, Byte.MAX_VALUE);
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System.out.printf("Node id (%s): description length (%d) is longer then maximum allowed (%d). The description will NOT be written.", nid, description.length, Byte.MAX_VALUE);
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dos.writeByte((byte) 0);
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} else {
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int mode = (description == null ? 0 : 1) | (selev == Short.MIN_VALUE ? 0 : 2);
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dos.writeByte((byte) mode);
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if ((mode & 1) != 0) { dos.write(description.length); dos.write(description); }
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if ((mode & 2) != 0) dos.writeShort(selev);
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}
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}
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}
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