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This charting library ${project.artifactId}- is an extension
in the spirit of Oracle's XYChart and performance/time-proven JDataViewer charting functionalities.
Emphasis was put on plotting performance for both large number of data points and real-time displays,
as well as scientific accuracies leading to error bar/surface plots, and other scientific plotting
features (parameter measurements, fitting, multiple axes, zoom, ...).
package de.gsi.chart.axes.spi;
/**
* Metric prefixes and conversions according to ISO/IEC 80000
* N.B. the 'deca' and 'deci' are omitted/deprecated
*
* @author rstein
*/
public enum MetricPrefix {
YOTTA("yotta", "Y", 1e24),
ZETTA("zetta", "Z", 1e21),
EXA("exa", "E", 1e18),
PETA("peta", "P", 1e15),
TERA("tera", "T", 1e12),
GIGA("giga", "G", 1e9),
MEGA("mega", "M", 1e6),
KILO("kilo", "k", 1e3),
HECTO("hecto", "h", 1e2),
// DECA("deca", "da", 1e1),
NONE("", "", 1e0),
// DECI("deci", "d", 1e-1),
CENTI("centi", "c", 1e-2),
MILLI("milli", "m", 1e-3),
MICRO("micro", "\u03BC", 1e-6),
NANO("nano", "n", 1e-9),
PICO("pico", "p", 1e-12),
FEMTO("femto", "f", 1e-15),
ATTO("atto", "a", 1e-18),
ZEPTO("zepto", "z", 1e-21),
YOCTO("yocto", "y", 1e-24);
final String longPrefix;
final String shortPrefix;
final double power;
MetricPrefix(final String longPrefix, final String shortPrefix, final double power) {
this.longPrefix = longPrefix;
this.shortPrefix = shortPrefix;
this.power = power;
}
public String getLongPrefix() {
return longPrefix;
}
public String getShortPrefix() {
return shortPrefix;
}
public double getPower() {
return power;
}
public static MetricPrefix getNearestMatch(final double scaling) {
for (final MetricPrefix e : MetricPrefix.values()) {
if (scaling >= e.getPower()) {
return e;
}
}
return NONE;
}
public static String getShortPrefix(final double scaling) {
for (final MetricPrefix e : MetricPrefix.values()) {
if (scaling == e.getPower()) {
return e.getShortPrefix();
}
}
return scaling + "*";
}
public static String getLongPrefix(final double scaling) {
for (final MetricPrefix e : MetricPrefix.values()) {
if (scaling == e.getPower()) {
return e.getLongPrefix();
}
}
return scaling + "*";
}
}