protected void _initChart() throws Exception {
/* already initialized? */
if (this.didInitChart) {
return;
}
/* axis tick counts */
int yTickCnt = this.getTemperatureTickCount();
int xTickCnt = this.getDateTickCount();
/* horizontal grid */
this.setGrid(0, yTickCnt);
/* Y-axis labels */
StringBuffer ya = new StringBuffer();
double deltaC = this.maxTempC - this.minTempC;
for (int y = 0; y <= yTickCnt; y++) {
double C = this.minTempC + (deltaC * ((double) y / (double) yTickCnt));
double v = (this.dispUnits == TEMP_C) ? C : C2F(C);
ya.append("|").append(StringTools.format(v, "0.0"));
}
if ((this.maxTempC > 0.0) && (this.minTempC < 0.0)) {
double sep = Math.abs(this.minTempC) / (this.maxTempC - this.minTempC);
this.addShapeMarker(
"r,AA4444,0,"
+ StringTools.format(sep, "0.000")
+ ","
+ StringTools.format(sep + 0.002, "0.000"));
}
/* X-axis labels */
StringBuffer xat = new StringBuffer();
StringBuffer xad = new StringBuffer();
double deltaTS = (double) (this.maxDateTS - this.minDateTS);
long lastDN = 0L;
for (int x = 0; x <= xTickCnt; x++) {
long ts = this.minDateTS + Math.round(deltaTS * ((double) x / (double) xTickCnt));
DateTime dt = new DateTime(ts, this.timeZone);
long dn = DateTime.getDayNumberFromDate(dt);
xat.append("|").append(dt.format(this.getTimeFormat()));
xad.append("|").append(dt.format(this.getDateFormat()));
if (dn != lastDN) {
long ds = dt.getDayStart();
if (ds > this.minDateTS) {
double sep = (double) (ds - this.minDateTS) / deltaTS;
this.addShapeMarker(
"R,444444,0,"
+ StringTools.format(sep, "0.000")
+ ","
+ StringTools.format(sep + 0.001, "0.000"));
}
lastDN = dn;
}
}
/* axis labels */
this.setAxisLabels(
"y,x,x", "0:" + ya.toString() + "|1:" + xad.toString() + "|2:" + xat.toString());
/* did init */
this.didInitChart = true;
}
