/* Returns a named property value. Depending on the source and
destination unit the actual value is converted. */
double transline::getProperty (const char * prop, int type, int dstunit) {
int srcunit = translateUnit (getUnit (prop));
double value = getProperty (prop);
if (type == UNIT_LENGTH)
return value * conv_length[srcunit][dstunit];
else if (type == UNIT_RES)
return value * conv_res[srcunit][dstunit];
else if (type == UNIT_ANG)
return value * conv_ang[srcunit][dstunit];
else if (type == UNIT_FREQ)
return value * conv_freq[srcunit][dstunit];
return value;
}
/* Sets a named property to a given value. Depending on the source
and destination unit the value gets previously converted. */
void transline::setProperty (const char * prop, double value, int type,
int srcunit) {
int dstunit = translateUnit (getUnit (prop));
if (type == UNIT_LENGTH)
value *= conv_length[srcunit][dstunit];
else if (type == UNIT_RES)
value *= conv_res[srcunit][dstunit];
else if (type == UNIT_ANG)
value *= conv_ang[srcunit][dstunit];
else if (type == UNIT_FREQ)
value *= conv_freq[srcunit][dstunit];
setProperty (prop, value);
}
/**
* Transform number to base units
* @param context
* @param unit text representation of unit
* @param len length of text representation
* @param value preparsed numeric value
* @return TRUE if value parameter was converted to base units
*/
scpi_bool_t SCPIParser::transformNumber(const char * unit, size_t len, scpi_number_t * value) {
size_t s;
const scpi_unit_def_t * unitDef;
s = skipWhitespace(unit, len);
if (s == len) {
value->unit = SCPI_UNIT_NONE;
return TRUE;
}
unitDef = translateUnit(context.units, unit + s, len - s);
if (unitDef == NULL) {
SCPI_ErrorPush(SCPI_ERROR_INVALID_SUFFIX);
return FALSE;
}
value->value *= unitDef->mult;
value->unit = unitDef->unit;
return TRUE;
}
