Hello...
I have some data values coming from a function of type (x, y, z) -> w. The
domain values (R^3) are stored in an array of the form
float[3][7]. The range values are stored in an array float[1][7]. My goals
is to get the range value in each picked or chosen point, and
view the surface as a 3d surface, w represented by color.
The following program does not give me the range value, and all I see is the
reference box and the colored cursor.
Could anybody give a hint?
Thanks,
Elin.
//Declarations
x = RealType.getRealType("gridx", SI.meter, null);
y = RealType.getRealType("gridy", SI.meter, null);
z = RealType.getRealType("gridz", SI.meter, null);
w = RealType.getRealType("gridw", SI.kelvin, null);
domain = new RealTupleType(x, y, z);
grid_type = new FunctionType(domain, w);
//Cursor
cursorCoords = new RealTuple(domain, new double[]{0.50, 0.50, 0.50});
cursorDataRef = new DataReferenceImpl("cursorDataRef");
cursorDataRef.setData(cursorCoords);
DelaunayWatson delan = new DelaunayWatson(threeDSamples);
domain_set = new Irregular3DSet(grid_type.getDomain(), threeDSamples,
null, null, null, delan);
vals_ff = new FlatField(grid_type, domain_set);
vals_ff.setSamples(fi_Samples, false);
//Create a data reference and set the FlatField as our data
data_ref = new DataReferenceImpl("data_ref");
data_ref.setData( vals_ff );
CellImpl cell = new CellImpl(){
public void doAction() throws RemoteException, VisADException{
RealTuple coords = (RealTuple) cursorDataRef.getData();
Real lon = (Real)coords.getComponent(0);
Real lat = (Real)coords.getComponent(1);
Real alt = (Real)coords.getComponent(2);
double x = lon.getValue();
double y = lat.getValue();
double z = alt.getValue();
System.out.println("Cursor at: (" + x + ", " +
y + ", " +
z +")");
Linear3DSet new3DSet = new Linear3DSet(-20.0, 13.0, 33, 0.0,
45.0, 45, -16.0, 16.0, 32);
int resampMode = Data.NEAREST_NEIGHBOR;
int errorMode = Data.NO_ERRORS;
FlatField temporField = (FlatField)vals_ff.resample(new3DSet,
resampMode, errorMode);
double[][] tem1 = temporField.getValues();
System.out.println("TEM1 " + tem1[0][0]);
Real tem2 = (Real)vals_ff.evaluate(coords, resampMode,
errorMode);
//System.out.println("RANGE " + tem2.getValue());
System.out.println("RANGE " + tem2);
}
};
cell.addReference(cursorDataRef);
// Create Display and its maps
// A 2D display
display = new DisplayImplJ3D("display1");
// Get display's graphics mode control and draw scales
GraphicsModeControl dispGMC
(GraphicsModeControl)display.getGraphicsModeControl();
dispGMC.setScaleEnable(true);
// Create the ScalarMaps: y to YAxis, x to XAxis and
// z to ZAxis and temperature to RGB
// Use ScalarMap(ScalarType scalar, DisplayRealType display_scalar)
xMap = new ScalarMap(x, Display.XAxis);
yMap = new ScalarMap(y, Display.YAxis);
zMap = new ScalarMap(z, Display.ZAxis);
wMap = new ScalarMap(w, Display.RGB);
// Add maps to display
display.addMap(xMap);
display.addMap(yMap);
display.addMap(zMap);
display.addMap(wMap);
ConstantMap[] cMaps = { new ConstantMap(1.0f, Display.Red),
new ConstantMap(0.0f, Display.Green),
new ConstantMap(0.0f, Display.Blue),
new ConstantMap(5.0f, Display.PointSize) };
//Add reference to display
display.addReferences( new DirectManipulationRendererJ3D(),
cursorDataRef, cMaps);
display.addReference( data_ref );
---------------------------------------------------------------------
From: Elin R. Sivertsen---Elin.Sivertsen@xxxxxx
Title: CandScient
Place: IFE/OECD Halden Reactor Project
Department: Halden VR Centre
