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Fix #84

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This commit is contained in:
Magnus Persson 2022-07-03 13:20:24 +02:00
parent 8b4b89ba20
commit a992e90bc3
1 changed files with 10 additions and 12 deletions
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22
src/calc.cpp
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@ -175,16 +175,15 @@ double calculateGravity(double angle, double temp, const char *tempFormula) {
//
// Source: https://homebrewacademy.com/hydrometer-temperature-correction/
//
double gravityTemperatureCorrectionC(double gravity, double tempC,
double gravityTemperatureCorrectionC(double gravitySG, double tempC,
double calTempC) {
#if LOG_LEVEL == 6 && !defined(CALC_DISABLE_LOGGING)
Log.verbose(F("CALC: Adjusting gravity based on temperature, gravity %F, "
"temp %F, calTemp %F." CR),
gravity, tempC, calTempC);
gravitySG, tempC, calTempC);
#endif
// float tempF = convertCtoF(tempC);
// float calTempF = convertCtoF(calTempC);
double tempF = convertCtoF(tempC);
double calTempF = convertCtoF(calTempC);
const char *formula =
"gravity*((1.00130346-0.000134722124*temp+0.00000204052596*temp^2-0."
"00000000232820948*temp^3)/"
@ -193,7 +192,7 @@ double gravityTemperatureCorrectionC(double gravity, double tempC,
// Store variable names and pointers.
te_variable vars[] = {
{"gravity", &gravity}, {"temp", &tempC}, {"cal", &calTempC}};
{"gravity", &gravitySG}, {"temp", &tempF}, {"cal", &calTempF}};
int err;
// Compile the expression with variables.
@ -203,11 +202,10 @@ double gravityTemperatureCorrectionC(double gravity, double tempC,
double g = te_eval(expr);
te_free(expr);
#if LOG_LEVEL == 6 && !defined(CALC_DISABLE_LOGGING)
char s[10];
snprintf(&s[0], sizeof(s), "%.8f", g);
Log.verbose(F("CALC: Corrected gravity is %s." CR), &s[0]);
#endif
char s[80];
snprintf(&s[0], sizeof(s), "Corrected gravity=%.8f, input gravity=%.8f", g,
gravitySG);
Log.notice(F("CALC: %s." CR), &s[0]);
return g;
}
@ -215,7 +213,7 @@ double gravityTemperatureCorrectionC(double gravity, double tempC,
errLog.addEntry(
"CALC: Failed to parse expression for gravity temperature correction " +
String(err));
return gravity;
return gravitySG;
}
// EOF