public void setOflowColor(double frac) {
int fc = cminfo.getFirstColor();
int lc = cminfo.getLastColor();
int color = (int) (fc + frac * (lc - fc) + 0.5);
cminfo.setOflowColor(color);
colorLookupTable.setOflowColor(color);
}
/**
* Construct a Polyline that represents a graph of the Vs function.
*
* @param x0 The X-coordinate of the left side of the graph (pixels).
* @param y0 The Y-coordinate of the top of the graph (pixels).
* @param width The width of the graph (pixels).
* @param height The height of the graph (pixels).
*/
public Polyline getGraph(int x0, int y0, int width, int height) {
if (!getCltUpToDate()) {
updateLookupTable();
}
// if (graphX == x0 && graphY == y0 &&
// graphWidth == width && graphHeight == height)
// {
// return curve;
// }
int i;
int j;
double ficol5 = cminfo.getFirstColor() - 0.5;
int ncols = cminfo.getNumColors();
double fncols = ncols;
double fh1 = height - 1;
double fw1 = width - 1;
int[] tbl = colorLookupTable.getTable();
int tsize = tbl.length;
double ftsize = tsize;
// Need 2 pts on each color. In worst case, lookup
// table could change color with every table entry.
Polyline curve = new Polyline(tsize * 2);
int[] x = curve.x;
int[] y = curve.y;
int col = tbl[0];
x[0] = x0;
y[0] = y0 + (int) (fh1 - fh1 * (col - ficol5) / fncols + 0.5);
for (i = j = 1; i < tsize; i++) {
if (tbl[i] != col) {
x[j] = x0 + (int) ((fw1 * i) / ftsize + 0.5);
y[j] = y[j - 1];
j++;
col = tbl[i];
x[j] = x[j - 1];
y[j] = y0 + (int) (fh1 - fh1 * (col - ficol5) / fncols + 0.5);
j++;
}
}
x[j] = x0 + width - 1;
y[j] = y[j - 1];
curve.length = j + 1;
if (cminfo.getNegative()) {
for (i = 0; i < curve.length; i++) {
y[i] = height - y[i];
}
}
return curve;
}
public void setTopColorToUse(double frac) {
topFrac = frac;
int fc = cminfo.getFirstColor();
int lc = cminfo.getLastColor();
topColorToUse = (int) (fc + frac * (lc - fc) + 0.5);
}
public void setBottomColorToUse(double frac) {
bottomFrac = frac;
int fc = cminfo.getFirstColor();
int lc = cminfo.getLastColor();
bottomColorToUse = (int) (fc + frac * (lc - fc) + 0.5);
}