Revision 10435 trunk/libraries/libDwg/src/com/iver/cit/jdwglib/dwg/readers/DwgFileV12Reader.java
| DwgFileV12Reader.java | ||
|---|---|---|
| 56 | 56 |
/** |
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* Reads version 12 dwg files |
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* |
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* http://www.iwriteiam.nl/DWG12.html |
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| 60 |
* |
|
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* @author azabala |
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* |
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* TODO REVISAR TODOS LOS bb.getShort() y bb.getInt() pues puede que haya |
| ... | ... | |
| 195 | 197 |
readVportTable(vportTable); |
| 196 | 198 |
readAppidTable(appidTable); |
| 197 | 199 |
readDimStyleTable(dimStyleTable); |
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readP13Table(p13table); |
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// readP13Table(p13table);
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| 199 | 201 |
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//luego lee entidades de bloque |
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readEntities(bsStart, bsEnd); |
| ... | ... | |
| 255 | 257 |
} |
| 256 | 258 |
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private void readP13Table(Dwg12Table p13table) {
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// TODO Auto-generated method stub |
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} |
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private void readDimStyleTable(Dwg12Table dimStyleTable) {
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short size = dimStyleTable.s1; |
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int numRecs = dimStyleTable.i1; |
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int start = dimStyleTable.i2; |
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){
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end = bb.position() + size; |
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byte flag = bb.get(); |
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short word = bb.getShort(); |
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double[] d4048 = new double[9]; |
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for(int j = 0; j < 9; j++){
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d4048[j] = bb.getDouble(); |
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} |
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double[] d40145 = new double[6]; |
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for(int j = 0; j < 6; j++){
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d40145[j] = bb.getDouble(); |
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} |
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byte[] b7078 = new byte[7]; |
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for(int j = 0; j < 7; j++){
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b7078[j] = bb.get(); |
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} |
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byte[] b170175 = new byte[6]; |
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for(int j = 0; j < 6; j++){
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b170175[j] = bb.get(); |
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} |
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bb.order(ByteOrder.nativeOrder()); |
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byte[] s3 = new byte[16]; |
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bb.get(s3); |
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byte[] s4 = new byte[16]; |
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bb.get(s4); |
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byte[] s5 = new byte[32]; |
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bb.get(s5); |
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byte[] s6 = new byte[32]; |
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bb.get(s6); |
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byte[] s7 = new byte[32]; |
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bb.get(s6); |
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bb.position(bb.position() + 3); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short w176 = bb.getShort(); |
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short w177 = bb.getShort(); |
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short w178 = bb.getShort(); |
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double d146 = bb.getDouble(); |
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double d147 = bb.getDouble(); |
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int offset = end - bb.position(); |
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if(offset > 0) |
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bb.position(bb.position() + offset); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short crc = bb.getShort(); |
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} |
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byte[] crc32 = new byte[32]; |
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bb.get(crc32); |
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} |
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private void readAppidTable(Dwg12Table appidTable) {
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short size = appidTable.s1; |
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int numRecs = appidTable.i1; |
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int start = appidTable.i2; |
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){
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end = bb.position() + size; |
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byte flag = bb.get(); |
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short word = bb.getShort(); |
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int offset = end - bb.position(); |
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if(offset > 0) |
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bb.position(bb.position() + offset); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short crc = bb.getShort(); |
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} |
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byte[] crc32 = new byte[32]; |
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bb.get(crc32); |
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} |
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private void readVportTable(Dwg12Table vportTable) {
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short size = vportTable.s1; |
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int numRecs = vportTable.i1; |
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int start = vportTable.i2; |
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){
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end = bb.position() + size; |
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byte flag = bb.get(); |
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short used = bb.getShort(); |
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double[] pt10 = getPoint(false); |
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double[] pt11 = getPoint(false); |
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double[] pt17 = getPoint(false); |
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double[] pt16 = getPoint(true); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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double d50 = bb.getDouble(); |
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double d40 = bb.getDouble(); |
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double[] pt12 = getPoint(false); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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double d41 = bb.getDouble(); |
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double d42 = bb.getDouble(); |
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double d43 = bb.getDouble(); |
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double d44 = bb.getDouble(); |
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short[] w7178 = new short[8]; |
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for(int j = 0; j < 8; j++){
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w7178[j] = bb.getShort(); |
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} |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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double d51 = bb.getDouble(); |
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double[] pt13 = getPoint(false); |
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double[] pt14 = getPoint(false); |
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double[] pt15 = getPoint(false); |
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int offset = end - bb.position(); |
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if(offset > 0) |
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bb.position(bb.position() + offset); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short crc = bb.getShort(); |
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} |
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byte[] crc32 = new byte[32]; |
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bb.get(crc32); |
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} |
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private void readUcsTable(Dwg12Table ucsTable) {
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short size = ucsTable.s1; |
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int numRecs = ucsTable.i1; |
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int start = ucsTable.i2; |
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){
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end = bb.position() + size; |
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byte flag = bb.get(); |
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short used = bb.getShort(); |
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double[] pt10 = getPoint(true); |
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double[] pt11 = getPoint(true); |
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double[] pt12 = getPoint(true); |
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int offset = end - bb.position(); |
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if(offset > 0) |
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bb.position(bb.position() + offset); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short crc = bb.getShort(); |
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} |
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byte[] crc32 = new byte[32]; |
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bb.get(crc32); |
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} |
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private void readViewTable(Dwg12Table viewTable) {
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short size = viewTable.s1; |
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int numRecs = viewTable.i1; |
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int start = viewTable.i2; |
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){
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end = bb.position() + size; |
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byte flag = bb.get(); |
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byte[] nameBytes = new byte[32]; |
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bb.get(nameBytes); |
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String name = new String(nameBytes); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short used = bb.getShort(); |
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double db40 = bb.getDouble(); |
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double[] pt10 = getPoint(false); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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double db41 = bb.getDouble(); |
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double[] pt11 = getPoint(true); |
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double[] pt12 = getPoint(true); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short w71 = bb.getShort(); |
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double db42 = bb.getDouble(); |
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double db43 = bb.getDouble(); |
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double db44 = bb.getDouble(); |
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double db50 = bb.getDouble(); |
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int offset = end - bb.position(); |
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if(offset > 0) |
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bb.position(bb.position() + offset); |
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bb.order(ByteOrder.LITTLE_ENDIAN); |
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short crc = bb.getShort(); |
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} |
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byte[] crc32 = new byte[32]; |
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bb.get(crc32); |
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} |
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private void readLTypeTable(Dwg12Table lineTypeTable) {
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short size = lineTypeTable.s1; |
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int numRecs = lineTypeTable.i1; |
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int start = lineTypeTable.i2; |
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int end = -1; |
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bb.position(start); |
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for(int i = 0; i < numRecs; i++){
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| 527 |
end = bb.position() + size; |
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byte flag = bb.get(); |
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byte[] nameBytes = new byte[32]; |
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| 530 |
bb.get(nameBytes); |
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| 531 |
String name = new String(nameBytes); |
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| 532 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 533 |
short w1 = bb.getShort(); |
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| 534 |
|
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| 535 |
byte[] s1 = new byte[48]; |
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| 536 |
bb.get(s1); |
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String s1name = new String(s1); |
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| 538 |
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| 539 |
bb.order(ByteOrder.nativeOrder()); |
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byte b1 = bb.get(); |
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byte b2 = bb.get(); |
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| 542 |
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| 543 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 544 |
double[] doubles = new double[13]; |
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| 545 |
for(int j = 0; j < 13; j++){
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doubles[j] = bb.getDouble(); |
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} |
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| 549 |
short crc = bb.getShort(); |
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| 550 |
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| 551 |
int offset = end - bb.position(); |
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| 552 |
if(offset > 0) |
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| 553 |
bb.position(bb.position() + offset); |
|
| 554 |
} |
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| 555 |
byte[] crc32 = new byte[32]; |
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| 556 |
bb.get(crc32); |
|
| 557 |
} |
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| 558 |
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| 258 | 561 |
/** |
| 259 | 562 |
* @param styleTable |
| 260 | 563 |
*/ |
| ... | ... | |
| 331 | 634 |
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| 332 | 635 |
class LineReader implements EntityReader{
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| 333 | 636 |
public void read(ByteBuffer bb, char flags, short opts) {
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| 637 |
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| 638 |
boolean zflag = true; |
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| 639 |
if( (flags & 0x4) > 0) |
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| 640 |
zflag = false; |
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| 641 |
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| 642 |
double[] pt10 = getPoint(zflag); |
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| 643 |
double[] pt11 = getPoint(zflag); |
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| 644 |
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| 645 |
if((opts & 0x1) > 0){
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| 646 |
double[] pt210 = getPoint(true); |
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| 647 |
} |
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| 648 |
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| 649 |
if((opts & 0x2) > 0){
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| 650 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 651 |
double db38 = bb.getDouble(); |
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| 652 |
} |
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| 334 | 653 |
} |
| 335 | 654 |
} |
| 336 | 655 |
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| 656 |
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| 657 |
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| 337 | 658 |
class PointReader implements EntityReader{
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| 338 | 659 |
public void read(ByteBuffer bb, char flags, short opts) {
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| 660 |
boolean zflag = true; |
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| 661 |
if((flags & 0x4) > 0) |
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| 662 |
zflag = false; |
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| 663 |
double[] pt10 = getPoint(zflag); |
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| 664 |
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| 665 |
if((opts & 0x1) > 0){
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| 666 |
double[] pt210 = getPoint(true); |
|
| 667 |
} |
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| 668 |
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| 669 |
if((opts & 0x2) > 0){
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| 670 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 671 |
double db38 = bb.getDouble(); |
|
| 672 |
} |
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| 339 | 673 |
} |
| 340 | 674 |
} |
| 675 |
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| 676 |
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| 341 | 677 |
class CircleReader implements EntityReader{
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| 342 | 678 |
public void read(ByteBuffer bb, char flags, short opts) {
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| 679 |
boolean zflag = true; |
|
| 680 |
if((flags & 0x4) > 0) |
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| 681 |
zflag = false; |
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| 682 |
double[] pt10 = getPoint(zflag); |
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| 683 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 684 |
double d40 = bb.getDouble(); |
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| 685 |
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| 686 |
if((opts & 0x1) > 0){
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| 687 |
double[] pt210 = getPoint(true); |
|
| 688 |
} |
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| 689 |
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| 690 |
if((opts & 0x2) > 0){
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| 691 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 692 |
double db38 = bb.getDouble(); |
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| 693 |
} |
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| 343 | 694 |
} |
| 344 | 695 |
} |
| 696 |
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| 697 |
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| 698 |
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| 345 | 699 |
class ShapeReader implements EntityReader{
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| 346 | 700 |
public void read(ByteBuffer bb, char flags, short opts) {
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| 701 |
double[] pt10 = getPoint(false); |
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| 702 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 703 |
short w2 = bb.getShort(); |
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| 704 |
if((opts & 0x1) > 0){
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| 705 |
double[] pt210 = getPoint(true); |
|
| 706 |
} |
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| 707 |
if((opts & 0x2) > 0){
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| 708 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 709 |
double db38 = bb.getDouble(); |
|
| 710 |
} |
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| 347 | 711 |
} |
| 348 | 712 |
} |
| 713 |
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| 714 |
public String getString(){
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| 715 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 716 |
short len = bb.getShort(); |
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| 717 |
byte[] bytes = new byte[len]; |
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| 718 |
bb.order(ByteOrder.nativeOrder()); |
|
| 719 |
bb.get(bytes); |
|
| 720 |
return new String(bytes); |
|
| 721 |
} |
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| 349 | 722 |
class TextReader implements EntityReader{
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| 350 | 723 |
public void read(ByteBuffer bb, char flags, short opts) {
|
| 724 |
double[] pt10 = getPoint(false); |
|
| 725 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
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| 726 |
double db40 = bb.getDouble(); |
|
| 727 |
String text = getString(); |
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| 728 |
if((opts & 0x1) > 0){
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| 729 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 730 |
double db50 = bb.getDouble(); |
|
| 731 |
} |
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| 732 |
if((opts & 0x2) > 0){
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| 733 |
double db41 = bb.getDouble(); |
|
| 734 |
} |
|
| 735 |
if((opts & 0x4) > 0){
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| 736 |
double db51 = bb.getDouble(); |
|
| 737 |
} |
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| 738 |
if((opts & 0x8) > 0){
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| 739 |
byte b7 = bb.get(); |
|
| 740 |
} |
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| 741 |
if((opts & 0x10) > 0){
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| 742 |
byte b71 = bb.get(); |
|
| 743 |
} |
|
| 744 |
if((opts & 0x20) > 0){
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| 745 |
byte b72 = bb.get(); |
|
| 746 |
} |
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| 747 |
if((opts & 0x40) > 0){
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| 748 |
double[] pt11 = getPoint(false); |
|
| 749 |
} |
|
| 750 |
if((opts & 0x100) > 0){
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|
| 751 |
byte b73 = bb.get(); |
|
| 752 |
} |
|
| 351 | 753 |
} |
| 352 | 754 |
} |
| 755 |
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| 756 |
|
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| 353 | 757 |
class ArcReader implements EntityReader{
|
| 354 | 758 |
public void read(ByteBuffer bb, char flags, short opts) {
|
| 759 |
double[] pt10 = getPoint(false); |
|
| 760 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 761 |
double d40 = bb.getDouble(); |
|
| 762 |
double d50 = bb.getDouble(); |
|
| 763 |
double d51 = bb.getDouble(); |
|
| 764 |
if((opts & 0x1) > 0){
|
|
| 765 |
double[] pt210 = getPoint(true); |
|
| 766 |
} |
|
| 767 |
if((opts & 0x2) > 0){
|
|
| 768 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 769 |
double db38 = bb.getDouble(); |
|
| 770 |
} |
|
| 355 | 771 |
} |
| 356 | 772 |
} |
| 357 | 773 |
|
| 774 |
|
|
| 775 |
|
|
| 358 | 776 |
class TraceReader implements EntityReader{
|
| 359 | 777 |
public void read(ByteBuffer bb, char flags, short opts) {
|
| 778 |
double[] pt10 = getPoint(false); |
|
| 779 |
double[] pt11 = getPoint(false); |
|
| 780 |
double[] pt12 = getPoint(false); |
|
| 781 |
double[] pt13 = getPoint(false); |
|
| 782 |
if((opts & 0x1) > 0){
|
|
| 783 |
double[] pt210 = getPoint(true); |
|
| 784 |
} |
|
| 785 |
if((opts & 0x2) > 0){
|
|
| 786 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 787 |
double db38 = bb.getDouble(); |
|
| 788 |
} |
|
| 360 | 789 |
} |
| 361 | 790 |
} |
| 362 | 791 |
|
| 363 | 792 |
class SolidReader implements EntityReader{
|
| 364 | 793 |
public void read(ByteBuffer bb, char flags, short opts) {
|
| 794 |
double[] pt10 = getPoint(false); |
|
| 795 |
double[] pt11 = getPoint(false); |
|
| 796 |
double[] pt12 = getPoint(false); |
|
| 797 |
double[] pt13 = getPoint(false); |
|
| 798 |
double[] pt14 = getPoint(false); |
|
| 799 |
if((opts & 0x1) > 0){
|
|
| 800 |
double[] pt210 = getPoint(true); |
|
| 801 |
} |
|
| 802 |
if((opts & 0x2) > 0){
|
|
| 803 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 804 |
double db38 = bb.getDouble(); |
|
| 805 |
} |
|
| 365 | 806 |
} |
| 366 | 807 |
} |
| 367 | 808 |
|
| 368 | 809 |
class BlkReader implements EntityReader{
|
| 369 | 810 |
public void read(ByteBuffer bb, char flags, short opts) {
|
| 811 |
double[] pt10 = getPoint(false); |
|
| 812 |
String blockName = getString(); |
|
| 813 |
if((opts & 0x2) > 0) |
|
| 814 |
{
|
|
| 815 |
//puede ser que se trate de referencias |
|
| 816 |
//externas?? |
|
| 817 |
String s3 = getString(); |
|
| 818 |
} |
|
| 819 |
|
|
| 370 | 820 |
} |
| 371 | 821 |
} |
| 372 | 822 |
class EndBlkReader implements EntityReader{
|
| 373 | 823 |
public void read(ByteBuffer bb, char flags, short opts) {
|
| 824 |
// |
|
| 374 | 825 |
} |
| 375 | 826 |
} |
| 376 | 827 |
|
| 377 | 828 |
class InsertReader implements EntityReader{
|
| 378 | 829 |
public void read(ByteBuffer bb, char flags, short opts) {
|
| 830 |
|
|
| 831 |
/* |
|
| 832 |
def insert_reader(handle, flags, opts): |
|
| 833 |
print "insert_reader() ..." |
|
| 834 |
_w1 = struct.unpack('<h', handle.read(2))[0]
|
|
| 835 |
print "word: %d" % _w1 |
|
| 836 |
_p10 = get_point(handle, False) |
|
| 837 |
print "point: " + str(_p10) |
|
| 838 |
if (opts & 0x1): |
|
| 839 |
_db41 = struct.unpack('<d', handle.read(8))[0]
|
|
| 840 |
print "double: %g" % _db41 |
|
| 841 |
if (opts & 0x2): |
|
| 842 |
_db42 = struct.unpack('<d', handle.read(8))[0]
|
|
| 843 |
print "double: %g" % _db42 |
|
| 844 |
if (opts & 0x4): |
|
| 845 |
_db43 = struct.unpack('<d', handle.read(8))[0]
|
|
| 846 |
print "double: %g" % _db43 |
|
| 847 |
if (opts & 0x8): |
|
| 848 |
_db50 = struct.unpack('<d', handle.read(8))[0]
|
|
| 849 |
print "double: %g" % _db50 |
|
| 850 |
if (opts & 0x10): |
|
| 851 |
_w70 = struct.unpack('<h', handle.read(2))[0]
|
|
| 852 |
print "word: %d" % _w70 |
|
| 853 |
if (opts & 0x10): |
|
| 854 |
_w71 = struct.unpack('<h', handle.read(2))[0]
|
|
| 855 |
print "word: %d" % _w71 |
|
| 856 |
if (opts & 0x40): |
|
| 857 |
_db44 = struct.unpack('<d', handle.read(8))[0]
|
|
| 858 |
print "double: %g" % _db44 |
|
| 859 |
if (opts & 0x80): |
|
| 860 |
_db45 = struct.unpack('<d', handle.read(8))[0]
|
|
| 861 |
print "double: %g" % _db45 |
|
| 862 |
*/ |
|
| 863 |
|
|
| 864 |
|
|
| 379 | 865 |
} |
| 380 | 866 |
} |
| 381 | 867 |
|
| ... | ... | |
| 656 | 1142 |
} |
| 657 | 1143 |
|
| 658 | 1144 |
public void readHeader(){
|
| 1145 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 1146 |
short w1 = bb.getShort(); |
|
| 659 | 1147 |
|
| 1148 |
double[] inBase = getPoint(true); |
|
| 1149 |
double[] extMin = getPoint(true); |
|
| 1150 |
double[] extMax = getPoint(true); |
|
| 1151 |
double[] limMin = getPoint(false); |
|
| 1152 |
double[] limMax = getPoint(false); |
|
| 660 | 1153 |
|
| 1154 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 1155 |
double vcx = bb.getDouble(); |
|
| 1156 |
double vcy = bb.getDouble(); |
|
| 1157 |
double d3 = bb.getDouble(); |
|
| 1158 |
double d4 = bb.getDouble(); |
|
| 661 | 1159 |
|
| 1160 |
byte b1 = bb.get(); |
|
| 1161 |
byte b2 = bb.get(); |
|
| 662 | 1162 |
|
| 663 |
/* |
|
| 664 |
def read_header(handle): |
|
| 665 |
print "read_header() ..." |
|
| 666 |
_w1 = struct.unpack("<h", handle.read(2))[0]
|
|
| 667 |
print "word: %d" % _w1 |
|
| 668 |
_inbase = get_point(handle, True) |
|
| 669 |
print "inbase: " + str(_inbase) |
|
| 670 |
_extmin = get_point(handle, True) |
|
| 671 |
print "extmin: " + str(_extmin) |
|
| 672 |
_extmax = get_point(handle, True) |
|
| 673 |
print "extmax: " + str(_extmax) |
|
| 674 |
_limmin = get_point(handle, False) |
|
| 675 |
print "limmin: " + str(_limmin) |
|
| 676 |
_limmax = get_point(handle, False) |
|
| 677 |
print "limmax: " + str(_limmax) |
|
| 678 |
_vcx, _vcy, _d3, _d4 = struct.unpack("<dddd", handle.read(32))
|
|
| 679 |
print "view center: (%g, %g)" % (_vcx, _vcy) |
|
| 680 |
print "doubles: %g, %g" % (_d3, _d4) |
|
| 681 |
_b1, _b2 = struct.unpack("<BB", handle.read(2))
|
|
| 682 |
print "bytes: %#02x, %#02x" % (_b1, _b2) |
|
| 683 |
_sx, _sy = struct.unpack("<dd", handle.read(16))
|
|
| 684 |
print "snap units: (%g,%g)" % (_sx, _sy) |
|
| 685 |
_b56 = array.array('B')
|
|
| 686 |
_b56.fromfile(handle, 56) |
|
| 687 |
print "56 bytes: " + str(_b56) |
|
| 688 |
_d7, _d8, _d9 = struct.unpack("<ddd", handle.read(24))
|
|
| 689 |
print "doubles: %g, %g, %g" % (_d7, _d8, _d9) |
|
| 690 |
_b18 = array.array('B')
|
|
| 691 |
_b18.fromfile(handle, 18) |
|
| 692 |
print "18 bytes: " + str(_b18) |
|
| 693 |
_d10 = struct.unpack("<d", handle.read(8))
|
|
| 694 |
print "double: %g" % _d10 |
|
| 695 |
# |
|
| 696 |
# the following comes from the C code |
|
| 697 |
# |
|
| 698 |
_at = handle.tell() |
|
| 699 |
print "handle offset: %d [%#x]" % (_at, _at) |
|
| 700 |
_w2, _w3 = struct.unpack("<hh", handle.read(4))
|
|
| 701 |
print "word: %d, %d" % (_w2, _w3) |
|
| 702 |
_b44 = array.array('B')
|
|
| 703 |
_b44.fromfile(handle, 44) |
|
| 704 |
print "44 bytes: " + str(_b44) |
|
| 705 |
_at = handle.tell() |
|
| 706 |
print "handle offset: %d [%#x]" % (_at, _at) |
|
| 707 |
_b354 = array.array('B')
|
|
| 708 |
_b354.fromfile(handle, 354) |
|
| 709 |
print "354 more bytes read ..." |
|
| 710 |
if _b354[0:4] == [0x61,0x63,0x61,0x64]: # acad |
|
| 711 |
print "found 'acad' at start of 354 byte block" |
|
| 712 |
_at = handle.tell() |
|
| 713 |
print "handle offset: %d [%#x]" % (_at, _at) |
|
| 714 |
# |
|
| 715 |
# skip to 0x3ef - remainder of header is mysterious ... |
|
| 716 |
# |
|
| 717 |
handle.seek(0x3ef, 0) |
|
| 718 |
|
|
| 719 |
*/ |
|
| 1163 |
double sx = bb.getDouble(); |
|
| 1164 |
double sy = bb.getDouble(); |
|
| 1165 |
|
|
| 1166 |
bb.order(ByteOrder.nativeOrder()); |
|
| 1167 |
byte[] b56 = new byte[56]; |
|
| 1168 |
bb.get(b56); |
|
| 1169 |
|
|
| 1170 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 1171 |
double d7 = bb.getDouble(); |
|
| 1172 |
double d8 = bb.getDouble(); |
|
| 1173 |
double d9 = bb.getDouble(); |
|
| 1174 |
|
|
| 1175 |
bb.order(ByteOrder.nativeOrder()); |
|
| 1176 |
byte[] b18 = new byte[18]; |
|
| 1177 |
bb.get(b18); |
|
| 1178 |
|
|
| 1179 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 1180 |
double d10 = bb.getDouble(); |
|
| 1181 |
|
|
| 1182 |
int at = bb.position(); |
|
| 1183 |
|
|
| 1184 |
bb.order(ByteOrder.LITTLE_ENDIAN); |
|
| 1185 |
short w2 = bb.getShort(); |
|
| 1186 |
short w3 = bb.getShort(); |
|
| 1187 |
|
|
| 1188 |
bb.order(ByteOrder.nativeOrder()); |
|
| 1189 |
byte[] b44 = new byte[44]; |
|
| 1190 |
bb.get(b44); |
|
| 1191 |
|
|
| 1192 |
at = bb.position(); |
|
| 1193 |
|
|
| 1194 |
bb.order(ByteOrder.nativeOrder()); |
|
| 1195 |
byte[] b354 = new byte[354]; |
|
| 1196 |
bb.get(b354); |
|
| 1197 |
|
|
| 1198 |
if( (b354[0] == 0x61) && (b354[1] == 0x63) && (b354[2] == 0x61 ) && (b354[2] == 0x64 )) |
|
| 1199 |
System.out.println("Encontrada la cadena 'acad' al comienzo del bloque de 354 bytes");
|
|
| 1200 |
|
|
| 1201 |
bb.position(0x3ef); |
|
| 720 | 1202 |
} |
| 721 | 1203 |
|
| 722 | 1204 |
|
Also available in: Unified diff