From 0acf7a49b2da4dd1873d64012ba360eaf51754f4 Mon Sep 17 00:00:00 2001
From: ?? ? <ulysseskao@ximple.com.tw>
Date: Thu, 15 May 2008 10:42:55 +0800
Subject: [PATCH] update for EOFM-83
---
xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/ArcElement.java | 98 +++++++++++++++++++++++++++++-------------------
1 files changed, 59 insertions(+), 39 deletions(-)
diff --git a/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/ArcElement.java b/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/ArcElement.java
index e54f755..bd452df 100644
--- a/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/ArcElement.java
+++ b/xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/ArcElement.java
@@ -1,12 +1,15 @@
package com.ximple.io.dgn7;
import java.nio.ByteOrder;
+import java.util.ArrayList;
import org.apache.log4j.Logger;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.GeometryFactory;
+
+import com.ximple.util.DgnUtility;
/**
* ArcElement
@@ -27,12 +30,12 @@
public double getStartAngle()
{
int angle = (raw[18] & 0x0000ffff) << 16 | (raw[19] & 0x0000ffff);
- return Utility.converIntToRotation(angle);
+ return DgnUtility.converIntToRotation(angle);
}
public void setStartAngle(double value)
{
- int angle = Utility.converRotatioToInt(value);
+ int angle = DgnUtility.converRotatioToInt(value);
raw[18] = (short) (angle >>> 16 & 0x0000ffff);
raw[19] = (short) (angle & 0x0000ffff);
@@ -44,12 +47,12 @@
if (angle < 0)
angle = -1 * (angle & 0x7fffffff);
- return Utility.converIntToRotation(angle);
+ return DgnUtility.converIntToRotation(angle);
}
public void setSweepAngle(double value)
{
- int angle = Utility.converRotatioToInt(value);
+ int angle = DgnUtility.converRotatioToInt(value);
if (angle < 0)
{
angle &= 0x7fffffff;
@@ -68,13 +71,13 @@
byte[] primary = new byte[8];
rawBuffer.get(primary);
rawBuffer.order(bo);
- return Utility.convertDGNToIEEEDouble(primary) / 1000.0;
+ return DgnUtility.convertDGNToIEEEDouble(primary) / 1000.0;
}
public void setPrimary(double value)
{
double temp = value * 1000.0;
- short[] primary = Utility.convertIEEEDoubleToDGN(temp);
+ short[] primary = DgnUtility.convertIEEEDoubleToDGN(temp);
System.arraycopy(primary, 0, raw, 22, 4);
}
@@ -87,13 +90,13 @@
byte[] secondary = new byte[8];
rawBuffer.get(secondary);
rawBuffer.order(bo);
- return Utility.convertDGNToIEEEDouble(secondary) / 1000.0;
+ return DgnUtility.convertDGNToIEEEDouble(secondary) / 1000.0;
}
public void setSecondary(double value)
{
double temp = value * 1000.0;
- short[] secondary = Utility.convertIEEEDoubleToDGN(temp);
+ short[] secondary = DgnUtility.convertIEEEDoubleToDGN(temp);
System.arraycopy(secondary, 0, raw, 26, 4);
}
@@ -103,12 +106,12 @@
int rotation = (raw[30] << 16 & 0xffff0000);
rotation |= raw[31] & 0x0000ffff;
- return Utility.converIntToRotation(rotation);
+ return DgnUtility.converIntToRotation(rotation);
}
public void setRotationAngle(double value)
{
- int angle = Utility.converRotatioToInt(value);
+ int angle = DgnUtility.converRotatioToInt(value);
raw[30] = (short) (angle >> 16 & 0x0000ffff);
raw[31] = (short) (angle & 0x0000ffff);
@@ -122,10 +125,10 @@
byte[] rawValue = new byte[8];
rawBuffer.get(rawValue); // x
- double dx = Utility.converUnitToCoord(Utility.convertDGNToIEEEDouble(rawValue));
+ double dx = DgnUtility.converUnitToCoord(DgnUtility.convertDGNToIEEEDouble(rawValue));
rawBuffer.get(rawValue); // y
- double dy = Utility.converUnitToCoord(Utility.convertDGNToIEEEDouble(rawValue));
+ double dy = DgnUtility.converUnitToCoord(DgnUtility.convertDGNToIEEEDouble(rawValue));
rawBuffer.order(bo);
@@ -134,22 +137,21 @@
public void setOrigin(Coordinate value)
{
- double temp = Utility.converCoordToUnit(value.x);
- short[] x = Utility.convertIEEEDoubleToDGN(temp);
+ double temp = DgnUtility.converCoordToUnit(value.x);
+ short[] x = DgnUtility.convertIEEEDoubleToDGN(temp);
System.arraycopy(x, 0, raw, 32, 4);
- temp = Utility.converCoordToUnit(value.y);
+ temp = DgnUtility.converCoordToUnit(value.y);
- short[] y = Utility.convertIEEEDoubleToDGN(temp);
+ short[] y = DgnUtility.convertIEEEDoubleToDGN(temp);
System.arraycopy(y, 0, raw, 36, 4);
}
public Geometry toGeometry(GeometryFactory factory)
{
- double start = getStartAngle();
- double end = getSweepAngle();
- double temp = Math.abs(start - end);
+ double sweep = getSweepAngle();
+ double temp = Math.abs(sweep);
temp /= 4;
int pts = (temp < 3) ? 3 : (int) temp;
return factory.createLineString(convertToLineString(pts));
@@ -157,31 +159,49 @@
private Coordinate[] convertToLineString(int pts)
{
- Coordinate[] result = new Coordinate[pts];
- double beta = Utility.converRotationToRadian(-getRotationAngle());
- double sinbeta = Math.sin(beta);
- double cosbeta = Math.cos(beta);
+ ArrayList<Coordinate> result = new ArrayList<Coordinate>();
+ double beta = DgnUtility.converRotationToRadian(-getRotationAngle());
double startAngle = getStartAngle();
- double endAngle = getSweepAngle();
- double steps = Math.abs(startAngle - endAngle) / pts;
- int i = 0;
- for (double current = startAngle; current < endAngle; current += steps)
+ double sweepAngle = getSweepAngle();
+ double endAngle = startAngle + sweepAngle;
+ double steps = sweepAngle / pts;
+ double current;
+ if (sweepAngle < 0)
{
- if (i < pts)
+ for (current = startAngle; current > endAngle; current += steps)
{
- Coordinate pt = new Coordinate();
- double alpha = Utility.converRotationToRadian(current);
- double sinalpha = Math.sin(alpha);
- double cosalpha = Math.cos(alpha);
- pt.x = getOrigin().x + (getPrimary() * cosalpha * cosbeta -
- getSecondary() * sinalpha * sinbeta);
- pt.y = getOrigin().y + (getPrimary() * cosalpha * sinbeta +
- getSecondary() * sinalpha * cosbeta);
- result[i] = pt;
- i++;
+ Coordinate pt = computePointOnArcByAngle(beta, current);
+ result.add(pt);
+ }
+
+ } else
+ {
+ for (current = startAngle; current < endAngle; current += steps)
+ {
+ Coordinate pt = computePointOnArcByAngle(beta, current);
+ result.add(pt);
}
}
- return result;
+
+ Coordinate pt = computePointOnArcByAngle(beta, endAngle);
+ result.add(pt);
+
+ return result.toArray(new Coordinate[result.size()]);
+ }
+
+ private Coordinate computePointOnArcByAngle(double beta, double current)
+ {
+ double sinbeta = Math.sin(beta);
+ double cosbeta = Math.cos(beta);
+ Coordinate pt = new Coordinate();
+ double alpha = DgnUtility.converRotationToRadian(current);
+ double sinalpha = Math.sin(alpha);
+ double cosalpha = Math.cos(alpha);
+ pt.x = getOrigin().x + (getPrimary() * cosalpha * cosbeta -
+ getSecondary() * sinalpha * sinbeta);
+ pt.y = getOrigin().y + (getPrimary() * cosalpha * sinbeta +
+ getSecondary() * sinalpha * cosbeta);
+ return pt;
}
public static class ElementHandler extends Element.ElementHandler
--
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