public void preupdate() {
if (dataChanged && data != null) {
for (int el = 0, i = 0, m = data.length; i < m; i++) {
for (int j = 0, n = data[0].length; j < n; j++) {
for (int k = 0, p = data[0][0].length; k < p; k++, el++) {
Element element = arrows[el];
element.setX(data[i][j][k][0]);
element.setY(data[i][j][k][1]);
element.setZ(data[i][j][k][2]);
element.setSizeX(data[i][j][k][3] * zoom);
element.setSizeY(data[i][j][k][4] * zoom);
element.setSizeZ(data[i][j][k][5] * zoom);
magnitude[el] = data[i][j][k][6];
}
}
}
if (autoscaleMagnitude) computeMagnitudeExtrema();
dataChanged = false;
colorChanged = true;
}
if (colorChanged) {
if (levels > 0)
for (int i = 0, n = arrows.length; i < n; i++) {
Color color = magToColor(magnitude[i]);
if (color == null) {
arrows[i].setVisible(false);
continue;
}
arrows[i].setVisible(true);
arrows[i].getStyle().setLineColor(color);
arrows[i].getStyle().setFillColor(color);
}
else
for (int i = 0, n = arrows.length; i < n; i++) {
arrows[i].setVisible(true);
arrows[i].getStyle().setLineColor(minColor);
arrows[i].getStyle().setFillColor(minColor);
}
}
colorChanged = false;
}