// scaxis
// Adapted from SU source codes
// CREDITS
// CWP/SU
@SuppressWarnings("empty-statement")
private void scaxis(double x1, double x2, AuxSCAxis aux) {
int n, i, iloga;
double d, f, eps, a, b, xmin, xmax;
double rdint[] = new double[4];
/* Set readable intervals */
rdint[0] = 1.0;
rdint[1] = 2.0;
rdint[2] = 5.0;
rdint[3] = 10.0;
/* Handle x1 == x2 as a special case */
if (x1 == x2) {
aux.nxnum = 1;
aux.dxnum = 1.0f;
aux.fxnum = x1;
return;
}
/* determine minimum and maximum */
xmin = (x1 < x2) ? x1 : x2;
xmax = (x1 > x2) ? x1 : x2;
/* get desired number of numbered values */
n = aux.nxnum;
n = (2 > n) ? 2 : n;
/* determine output parameters, adjusted for roundoff */
a = (xmax - xmin) / (double) (n - 1);
iloga = (int) Math.log10((double) a);
if (a < 1.0) {
iloga = iloga - 1;
}
b = a / Math.pow(10.0, (double) iloga);
for (i = 0; i < 3 && b >= Math.sqrt(rdint[i] * rdint[i + 1]); i++) {;
}
d = rdint[i] * Math.pow(10.0, (double) iloga);
f = ((int) (xmin / d)) * d - d;
eps = 0.0001 * (xmax - xmin);
while (f < (xmin - eps)) {
f += d;
}
n = 1 + (int) ((xmax + eps - f) / d);
/* set output parameters before returning */
aux.nxnum = n;
aux.dxnum = d;
aux.fxnum = f;
}
private void drawHorizontalAxis(java.awt.Graphics g, int pX, int pY, int pWidth, int pHeight) {
float xbeg = m_xmin;
float xend = m_xmax;
float pbeg = m_pbeg;
float pend = m_pend;
double amin = (xbeg < xend) ? xbeg : xend;
double amax = (xbeg > xend) ? xbeg : xend;
amin += pbeg;
amax += pend;
// if (m_dxtic == 0.0) {
AuxSCAxis sc = new AuxSCAxis();
sc.dxnum = 1.0;
sc.fxnum = 0.0;
sc.nxnum = pWidth / (8 * getLabelsCW(g));
scaxis(amin, amax, sc);
double dtic = m_dtic;
double ntic = m_ntic;
double fnum = m_fnum;
dtic = sc.dxnum;
ntic = sc.nxnum;
fnum = sc.fxnum;
// }
double scale = pWidth / (amax - amin);
double base = pX - scale * (amin);
int tw;
int xa;
int ya = pY;
int yt = pY;
/* determine tic size */
int ticsize = AXIS_TICSIZE;
int labelca = ticsize;
int labelch = getLabelsCH(g);
int ticb = 0;
int numb = 0;
int labelb = 0;
switch (m_axisSide) {
case AXIS_TOP:
ticb = -ticsize;
numb = ticb - AXIS_TICSIZE / 2;
labelb = numb;
ya = pY;
yt = ya + labelb - labelch - AXIS_TICSIZE / 2;
break;
case AXIS_BOTTOM:
ticb = ticsize;
numb = ticb;
labelb = numb + labelch;
ya = pY + pHeight;
yt = ya + labelb + labelch;
break;
}
boolean grided = false;
java.awt.Graphics2D g2 = (java.awt.Graphics2D) g;
double azero = 0.0001 * (amax - amin);
String str;
int lstr;
double dnum = dtic;
for (double anum = fnum; anum <= amax; anum += dnum) {
if (anum < amin) {
continue;
}
xa = (int) (base + scale * anum);
g2.setColor(m_axisColor);
g2.drawLine(xa, ya, xa, ya + ticb);
if (anum > -azero && anum < azero) {
str = String.format("%1.0f", 0.0);
} else {
str = String.format("%1.0f", anum);
}
lstr = str.length();
tw = lstr * getLabelsCW(g);
g2.setColor(m_labelColor);
g2.drawString(str, xa - tw / 2, ya + labelb);
}
g2.setStroke(new java.awt.BasicStroke(1));
g2.setColor(m_axisColor);
double dtic2 = dnum / ntic;
for (double atic = fnum - ntic * dtic2 - dtic2; atic <= amax; atic += dtic2) {
if (atic < amin) {
continue;
}
xa = (int) (base + scale * atic);
g2.drawLine(xa, ya, xa, ya + ticb / 2);
}
g2.setColor(m_titleColor);
lstr = m_title.length();
tw = lstr * getAxisTitleCW(g);
g2.drawString(m_title, pX + pWidth / 2 - tw / 2, yt);
}
private void drawVerticalAxis(java.awt.Graphics g, int pX, int pY, int pWidth, int pHeight) {
float xbeg = m_xmin;
float xend = m_xmax;
float pbeg = m_pbeg;
float pend = m_pend;
double amin = (xbeg < xend) ? xbeg : xend;
double amax = (xbeg > xend) ? xbeg : xend;
// if (m_dytic == 0.0) {
AuxSCAxis sc = new AuxSCAxis();
sc.dxnum = 1.0f;
sc.fxnum = 0.0f;
sc.nxnum = pHeight / (8 * getLabelsCW(g));
scaxis(xbeg, xend, sc);
double dtic = sc.dxnum;
int ntic = sc.nxnum;
double fnum = sc.fxnum;
// }
double dnum = dtic;
double scale = pHeight / (xend + pend - xbeg - pbeg);
double base = pY - scale * (xbeg + pbeg);
int tw;
int xa = pX;
int ya = pY;
/* determine tic size */
int ticsize = AXIS_TICSIZE;
int labelca = ticsize;
int labelch = getLabelsCH(g);
int ticb = -ticsize;
int numb = ticb - ticsize / 4;
int labelb = 0;
if (m_style == AXIS_NORMAL) {
scale = -pHeight / (xend + pend - xbeg - pbeg);
base = pY + pHeight - scale * (xbeg + pbeg);
}
boolean grided = false;
java.awt.Graphics2D g2 = (java.awt.Graphics2D) g;
double azero = 0.0001 * (amax - amin);
String str;
int lstr;
for (double anum = fnum; anum <= amax; anum += dnum) {
if (anum < amin) {
continue;
}
ya = (int) (base + scale * anum);
g2.setColor(m_axisColor);
g2.drawLine(xa, ya, xa + ticb, ya);
if (anum > -azero && anum < azero) {
str = String.format("%1.2f", 0.0);
} else {
str = String.format("%1.2f", anum);
}
lstr = str.length();
tw = lstr * getLabelsCW(g);
g2.setColor(m_labelColor);
g2.drawString(str, xa + numb - tw, ya + labelca / 4);
}
g2.setStroke(new java.awt.BasicStroke(1));
g2.setColor(m_axisColor);
double dtic2 = dnum / ntic;
for (double atic = fnum - ntic * dtic2 - dtic2; atic <= amax; atic += dtic2) {
if (atic < amin) {
continue;
}
ya = (int) (base + scale * atic);
g2.drawLine(xa, ya, xa + ticb / 2, ya);
}
g2.setColor(m_titleColor);
lstr = m_title.length();
tw = lstr * getAxisTitleCW(g);
java.awt.geom.AffineTransform t = g2.getTransform();
g2.translate(pX - getLabelsCW(g) * 5 + numb, pY + pHeight / 2 + tw / 2);
g2.rotate(-Math.PI / 2.0);
g2.drawString(m_title, 0, 0);
g2.setTransform(t);
}
