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| private void readPolyline(boolean filled) throws IOException
{
// skip bounding box.
double xMin = readDouble();
double yMin = readDouble();
double xMax = readDouble();
double yMax = readDouble();
double x, y;
// Read number of parts in the current shape.
int nParts = readInt();
// Read total number of points in the current shape.
int nPoints = readInt();
// Read start index for each part
int parts[] = new int[nParts];
for(int i = 0; i < nParts; i++)
{
parts[i] = readInt();
}
// Compute the corresponding number of points for each part
int nums[] = new int[nParts];
for(int i = 0; i < nParts; i++)
{
if(i != nParts - 1)
{
nums[i] = parts[i + 1] - parts[i];
}
else
{
nums[i] = nPoints - parts[i];
}
}
// Array for points to read
double xi[] = null;
double yi[] = null;
int currentPart = 0;
int p = 0;
// Color col = new Color((float)Math.random(), (float)Math.random(), (float)Math.random());
// Read until the total number of points has been read.
for(int i = 0; i < nPoints; )
{
// Starting points of a part
if(i == parts[currentPart])
{
// Number of points for that part
int np = nums[currentPart];
if(np <= 0)
{
continue;
}
// Read all points
xi = new double[np];
yi = new double[np];
for(int j = 0; j < np; j++)
{
x = readDouble();
y = readDouble();
if(j == 0)
{
xMin = x;
yMin = y;
xMax = x;
yMax = y;
}
else
{
xMin = Math.min(x, xMin);
yMin = Math.min(y, yMin);
xMax = Math.max(x, xMax);
yMax = Math.max(y, yMax);
}
if(_projection != null)
{
if((x > 180) || (x < -180))
{
xi[j] = x;
yi[j] = y;
}
else
{
_projection.project(xToRadians(x), yToRadians(y), _projected);
xi[j] = _projected.x;
yi[j] = _projected.y;
}
}
else
{
xi[j] = x;
yi[j] = y;
}
i++; // increment the number of points we've read
}
// Create Polyline or Polylgon
if(filled)
{
GISPolyline poly = new GISPolyline.Double(xi, yi, LxGisPolyline.FILLED_POLY);
_data.addObject(poly, _currentLayerIndex, 0);
// poly.setStatus(col);
poly.setID(new Integer(_currentShape));
_shapes.addElement(poly);
if(_isLabellized)
{
poly.setType(GISPolyline.HIDDEN_POLY);
}
}
else
{
GISPolyline poly = new GISPolyline.Double(xi, yi, GISPolyline.OPENED_POLY);
_data.addObject(poly, _currentLayerIndex, 0);
_shapes.addElement(poly);
poly.setID(new Integer(_currentShape));
if(_isLabellized)
{
poly.setType(GISPolyline.HIDDEN_POLY);
}
}
// Next part
currentPart++;
}
}
} |
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