FlightSim-Streaming/XPlaneConnectCSP
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sendPOSI command change (double for lat/lon/h) (#111)

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* Updated POSI to use doubles for lat/lon/alt, as step size for floats was unacceptably large at high longitudes.
This commit is contained in:
Jan Zwiener
2017-06-28 21:04:59 +02:00
committed by Jason Watkins
parent 48656f2b4c
commit 0e493920fa
27 changed files with 201 additions and 143 deletions
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23
Java/src/XPlaneConnect.java
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@@ -549,7 +549,7 @@ public class XPlaneConnect implements AutoCloseable
* @return An array containing control surface data in the same format as {@code sendPOSI}.
* @throws IOException If the command cannot be sent or a response cannot be read.
*/
public float[] getPOSI(int ac) throws IOException
public double[] getPOSI(int ac) throws IOException
{
// Send request
ByteArrayOutputStream os = new ByteArrayOutputStream();
@@ -570,7 +570,7 @@ public class XPlaneConnect implements AutoCloseable
}
// Parse response
float[] result = new float[7];
double[] result = new double[7];
ByteBuffer bb = ByteBuffer.wrap(data);
bb.order(ByteOrder.LITTLE_ENDIAN);
for(int i = 0; i < 7; ++i)
@@ -600,13 +600,13 @@ public class XPlaneConnect implements AutoCloseable
* </p>
* @throws IOException If the command can not be sent.
*/
public void sendPOSI(float[] values) throws IOException
public void sendPOSI(double[] values) throws IOException
{
sendPOSI(values, 0);
}
/**
* Sets the position of the specified ac.
* Sets the position of the specified ac with double precision coordinates.
*
* @param values <p>An array containing position elements as follows:</p>
* <ol>
@@ -626,7 +626,7 @@ public class XPlaneConnect implements AutoCloseable
* @param ac The ac to set. 0 for the player ac.
* @throws IOException If the command can not be sent.
*/
public void sendPOSI(float[] values, int ac) throws IOException
public void sendPOSI(double[] values, int ac) throws IOException
{
//Preconditions
if(values == null)
@@ -644,15 +644,22 @@ public class XPlaneConnect implements AutoCloseable
//Pad command values and convert to bytes
int i;
ByteBuffer bb = ByteBuffer.allocate(28);
ByteBuffer bb = ByteBuffer.allocate(40);
bb.order(ByteOrder.LITTLE_ENDIAN);
for(i = 0; i < values.length; ++i)
{
bb.putFloat(i * 4, values[i]);
if(i<3) /* lat/lon/height as double */
{
bb.putDouble(values[i]);
}
else
{
bb.putFloat((float)values[i]);
}
}
for(; i < 7; ++i)
{
bb.putFloat(i * 4, -998);
bb.putFloat(-998);
}
//Build and send message