>
> Out of an Ascii-file, currently I am just trying to load the ascii in
> ArcView so that I can see, if VisAD or my application is missing values or
> the ascii data set.
>
Ok in the meantime I checked
the data set has about 300 000 points, and i am reading 300 000 lines in
my application. so the coordinate arrays have a lenght about 300 000
columns = 1000 and rows = 834
1000*834=834000 ( the missing points included)
I am putting this in a Linear2DSet and the result is the shape you can see
at pictures, I approximately countet the points in the shape in the
wireframe modus, which results in approximately 3000 points. So whats
wrong? I would have expected about 300 000 points! Is Linear2DSet somehow
interpolating? Where am I loosing my points?
Thanks Desiree
eastValues = RealType.getRealType("eastValues");
northValues = RealType.getRealType("northValues");
heightValues = RealType.getRealType("heightValues");
try {
//domain_tuple = new RealTupleType(northValues,eastValues);
domain_tuple = new RealTupleType(eastValues,northValues);
// Create a FunctionType (domain_tuple -> range_tuple);
func_en_h = new FunctionType(domain_tuple, heightValues);
//System.out.println("nCols "+nCols);
//System.out.println("nRows "+nRows);
domain_set = new
Linear2DSet(domain_tuple,northMin,northMax,nRows,eastMin, eastMax, nCols);
// Get the Set samples to facilitate the calculations
//float[][] set_samples = domain_set.getSamples( true );
// We create another array, with the same number of elements
of
// altitude and temperature, but organized as
// float[2][ number_of_samples ]
float[][] flat_samples = new float[1][nCols * nRows];
// ...and then we fill our 'flat' array with the generated
values
// by looping over NCOLS and NROWS
// specifiy height
for(int c = 0; c < nRows; c++){
for(int r = 0; r < nCols; r++){
//flat_samples[0][c*nRows+r] = height[c*nRows+r];
flat_samples[0][c*nCols+r] = heightNaN[c*nCols+r];
}
}
System.out.println("fsl "+flat_samples[0].length);
// Create a FlatField
// Use FlatField(FunctionType type, Set domain_set)
vals_ff = new FlatField( func_en_h, domain_set);
// ...and put the values above into it
// Note the argument false, meaning that the array won't be
copied
vals_ff.setSamples( flat_samples , false );
// Create Display and its maps
// A 2D display
display = new DisplayImplJ3D("display1");
// Create the ScalarMaps: latitude to XAxis, longitude to
YAxis and
// altitude to RGB and temperature to IsoContour
// Use ScalarMap(ScalarType scalar, DisplayRealType
display_scalar)
eastMap = new ScalarMap( eastValues, Display.YAxis );
northMap = new ScalarMap( northValues, Display.XAxis );
heightMap = new ScalarMap(heightValues,Display.ZAxis);
eastMap.setRange(-1.0, 1.0);
northMap.setRange(-1.0, 1.0);
heightMap.setRange(-1.0, 1.0);
// Add maps to display
display.addMap( eastMap );
display.addMap( northMap );
display.addMap( heightMap );
// Create a data reference and set the FlatField as our data
data_ref = new DataReferenceImpl("data_ref");
data_ref.setData( vals_ff );
renderer = new DefaultRendererJ3D();
// Add reference to display
display.addReferences(renderer,data_ref);
display.addDisplayListener(listener);
