From 2595f91f4aae3020cee3e0b4022aca6d9bc15fe6 Mon Sep 17 00:00:00 2001
From: ?? ? <ulysseskao@ximple.com.tw>
Date: Tue, 13 May 2008 18:07:49 +0800
Subject: [PATCH] update for EOFM-83
---
xdgnjobs/ximple-dgnio/src/main/java/com/ximple/io/dgn7/ArcElement.java | 136 ++++++++++++++++++++++++++++-----------------
1 files changed, 84 insertions(+), 52 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 0e0a507..70bd380 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
@@ -20,6 +20,40 @@
super(raw);
}
+ public double getStartAngle()
+ {
+ int angle = (raw[18] << 16 & 0xffff0000);
+
+ angle += raw[19] & 0x0000ffff;
+
+ return Utility.ConverIntToRotation(angle);
+ }
+
+ public void setStartAngle(double value)
+ {
+ int angle = Utility.ConverRotatioToInt(value);
+
+ raw[18] = (short) (angle >>> 16 & 0x0000ffff);
+ raw[19] = (short) (angle & 0x0000ffff);
+ }
+
+ public double getSweepAngle()
+ {
+ int angle = (raw[20] << 16 & 0xffff0000);
+
+ angle += raw[21] & 0x0000ffff;
+
+ return Utility.ConverIntToRotation(angle);
+ }
+
+ public void setSweepAngle(double value)
+ {
+ int angle = Utility.ConverRotatioToInt(value);
+
+ raw[20] = (short) (angle >> 16 & 0x0000ffff);
+ raw[21] = (short) (angle & 0x0000ffff);
+ }
+
public double getPrimary()
{
short[] primary = new short[4];
@@ -54,6 +88,23 @@
System.arraycopy(secondary, 0, raw, 26, 4);
}
+ public double getRotationAngle()
+ {
+ int rotation = (raw[30] << 16 & 0xffff0000);
+
+ rotation += raw[31] & 0x0000ffff;
+
+ return Utility.ConverIntToRotation(rotation);
+ }
+
+ public void setRotationAngle(double value)
+ {
+ int angle = Utility.ConverRotatioToInt(value);
+
+ raw[30] = (short) (angle >> 16 & 0x0000ffff);
+ raw[31] = (short) (angle & 0x0000ffff);
+ }
+
public Coordinate getOrigin()
{
short[] x = new short[4];
@@ -83,60 +134,41 @@
System.arraycopy(y, 0, raw, 36, 4);
}
- public double getStartAngle()
- {
- int angle = (int) (raw[18] << 16 & 0xffff0000);
-
- angle += raw[19] & 0x0000ffff;
-
- return Utility.ConverIntToRotation(angle);
- }
-
- public void setStartAngle(double value)
- {
- int angle = Utility.ConverRotatioToInt(value);
-
- raw[18] = (short) (angle >>> 16 & 0x0000ffff);
- raw[19] = (short) (angle & 0x0000ffff);
- }
-
- public double getSweepAngle()
- {
- int angle = (int) (raw[20] << 16 & 0xffff0000);
-
- angle += raw[21] & 0x0000ffff;
-
- return Utility.ConverIntToRotation(angle);
- }
-
- public void setSweepAngle(double value)
- {
- int angle = Utility.ConverRotatioToInt(value);
-
- raw[20] = (short) (angle >> 16 & 0x0000ffff);
- raw[21] = (short) (angle & 0x0000ffff);
- }
-
- public double getRotationAngle()
- {
- int rotation = (int) (raw[30] << 16 & 0xffff0000);
-
- rotation += raw[31] & 0x0000ffff;
-
- return Utility.ConverIntToRotation(rotation);
- }
-
- public void setRotationAngle(double value)
- {
- int angle = Utility.ConverRotatioToInt(value);
-
- raw[30] = (short) (angle >> 16 & 0x0000ffff);
- raw[31] = (short) (angle & 0x0000ffff);
- }
-
public Geometry toGeometry(GeometryFactory factory)
{
- return null; // To change body of implemented methods use File | Settings | File Templates.
+ double temp = Math.abs(getStartAngle() - getSweepAngle());
+ temp /= 4;
+ int pts = (temp < 3) ? 3 : (int) temp;
+ return factory.createLineString(convertToLineString(pts));
+ }
+
+ private Coordinate[] convertToLineString(int pts)
+ {
+ Coordinate[] result = new Coordinate[pts];
+ double beta = -getRotationAngle() / 180 * Math.PI;
+ double sinbeta = Math.sin(beta);
+ double cosbeta = Math.cos(beta);
+ double startAngle = getStartAngle();
+ double endAngle = getSweepAngle();
+ double steps = Math.abs(startAngle - endAngle) / pts;
+ int i = 0;
+ for (double current = startAngle; current < endAngle; current += steps)
+ {
+ if (i < pts)
+ {
+ Coordinate pt = new Coordinate();
+ double alpha = current / 180 * Math.PI;
+ 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++;
+ }
+ }
+ return result;
}
public static class ElementHandler extends Element.ElementHandler
--
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