From fe4bda7d456c106e1061afaa29d452e5553e9d96 Mon Sep 17 00:00:00 2001
From: ?? ? <ulysseskao@ximple.com.tw>
Date: Wed, 14 May 2008 19:40:53 +0800
Subject: [PATCH] update for EOFM-83
---
xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Utility.java | 75 +++++++++++++++++++++++++++++--------
1 files changed, 58 insertions(+), 17 deletions(-)
diff --git a/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Utility.java b/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Utility.java
index 7540fed..25f8254 100644
--- a/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Utility.java
+++ b/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/Utility.java
@@ -1,5 +1,10 @@
package com.ximple.io.dgn7;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+import org.apache.log4j.Logger;
+
import com.vividsolutions.jts.geom.Envelope;
/**
@@ -11,9 +16,10 @@
*/
public final class Utility
{
+ private static final Logger logger = Logger.getLogger(Utility.class);
+
public static double converIntToDouble(int src)
{
-
return (double) ((long) ((src * 6) / 1000.0 + 0.5)) / 1000.0;
}
@@ -71,6 +77,16 @@
return newVal;
}
+ public static double converUnitToCoord(double aValue)
+ {
+ double newVal;
+
+ newVal = aValue / 1000.0;
+ newVal += 2147483.648; // 2147483.648 = 2 ^ 31
+
+ return newVal;
+ }
+
public static int converCoordToUnit(double aValue)
{
double newVal = aValue;
@@ -103,22 +119,29 @@
converCoordToUnit(range.getMinY()), converCoordToUnit(range.getMaxY()));
}
- public static double convertDGNToIEEEDouble(short[] src)
+ public static long convertDGNToRAWIEEEDouble(byte[] org)
{
+ ByteBuffer buf = ByteBuffer.allocate(8);
+ buf.order(ByteOrder.LITTLE_ENDIAN);
+ buf.mark();
+ buf.put(org[2]);
+ buf.put(org[3]);
+ buf.put(org[0]);
+ buf.put(org[1]);
+ buf.put(org[6]);
+ buf.put(org[7]);
+ buf.put(org[4]);
+ buf.put(org[5]);
+ buf.position(0);
+
int[] tmp = new int[2];
- long des;
- int sign;
+
+ tmp[0] = buf.getInt();
+ tmp[1] = buf.getInt();
+
int exponent;
- int rndbits;
- if (src == null)
- {
- throw new RuntimeException("Source short array is null");
- }
-
- tmp[0] = ((src[0] << 16) & 0xffff0000) | (src[1] & 0x0000ffff);
- tmp[1] = ((src[2] << 16) & 0xffff0000) | (src[3] & 0x0000ffff);
- sign = (tmp[0] & 0x80000000);
+ int sign = (tmp[0] & 0x80000000);
exponent = (tmp[0] >>> 23) & 0x000000ff;
if (exponent != 0)
@@ -126,7 +149,7 @@
exponent = exponent - 129 + 1023;
}
- rndbits = tmp[1] & 0x00000007;
+ int rndbits = tmp[1] & 0x00000007;
tmp[1] = tmp[1] >>> 3;
tmp[1] = (tmp[1] & 0x1fffffff) | (tmp[0] << 29);
@@ -137,10 +160,28 @@
tmp[0] = (tmp[0] >>> 3) & 0x000fffff;
tmp[0] = tmp[0] | (exponent << 20) | sign;
- des = (((long) tmp[0] << 32));
- des = des | (long) tmp[1];
- return Double.longBitsToDouble(des);
+ buf.position(0);
+ buf.order(ByteOrder.BIG_ENDIAN);
+ buf.putInt(tmp[0]);
+ buf.putInt(tmp[1]);
+ buf.position(0);
+ byte[] tmpRaw = new byte[8];
+ buf.get(tmpRaw);
+ buf.position(0);
+ buf.order(ByteOrder.LITTLE_ENDIAN);
+ for (int i = tmpRaw.length; i > 0 ; i--)
+ {
+ buf.put(tmpRaw[i-1]);
+ }
+ buf.position(0);
+ long result = buf.getLong();
+ return result;
+ }
+
+ public static double convertDGNToIEEEDouble(byte[] src)
+ {
+ return Double.longBitsToDouble(convertDGNToRAWIEEEDouble(src));
}
public static short[] convertIEEEDoubleToDGN(double src)
--
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