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LinearFunction.cpp
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LinearFunction.cpp
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#include "LinearFunction.h"
LinearFunction::LinearFunction() {
//printf(" > Linear Function created\n");
LinearFunction("no_name");
}
LinearFunction::LinearFunction(const std::string& name)
{
this->name = name;
}
//bounded both-sided
Domain* LinearFunction::setDomain(bool flagLowerBoundaryExist, float lowerBoundary, bool flagUpperBoundaryExist, float upperBoundary) {
if (flagLowerBoundaryExist && flagUpperBoundaryExist && upperBoundary >= lowerBoundary) {
domain.setBoundaries(lowerBoundary, upperBoundary);
//printf("%f - %f\n", domain.getLowerBoundary(), domain.getUpperBoundary());
return &domain;
}
return NULL;
}
//bounded below
Domain* LinearFunction::setDomain(bool flagLowerBoundaryExist, float lowerBoundary, bool flagUpperBoundaryExist) {
if (flagLowerBoundaryExist && !flagUpperBoundaryExist) {
domain.setLowerBoundary(lowerBoundary);
//printf("%f - oo\n", domain.getLowerBoundary());
return &domain;
}
return NULL;
}
//bounded above
Domain* LinearFunction::setDomain(bool flagLowerBoundaryExist, bool flagUpperBoundaryExist, float upperBoundary) {
if (!flagLowerBoundaryExist && flagUpperBoundaryExist) {
domain.setUpperBoundary(upperBoundary);
//printf("oo - %f\n", domain.getUpperBoundary());
return &domain;
}
return NULL;
}
Domain* LinearFunction::setDomain(bool flagLowerBoundaryExist, bool flagUpperBoundaryExist) {
if (!flagLowerBoundaryExist && !flagUpperBoundaryExist) {
domain.unsetBoundaries();
return &domain;
}
return NULL;
}
Domain* LinearFunction::getDomain() {
return &domain;
}
std::string LinearFunction::getName()
{
return this->name;
}
bool LinearFunction::setKandD(float k, float d) {
this->k = k;
this->d = d;
return true;
}
bool LinearFunction::setKandD(float x1, float y1, float x2, float y2) {
if (x1 < x2) {
k = (y2 - y1) / (x2 - x1);
}
else if (x2 < x1) {
k = (y1 - y2) / (x1 - x2);
}
else {
k = 1;
d = 0;
return false;
}
d = y1 - k*x1;
return true;
}
float LinearFunction::getK() {
return k;
}
float LinearFunction::getD() {
return d;
}
float LinearFunction::getY(float x) {
float y;
y = k*x + d;
return y;
}

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LinearFunction.cpp (2 KB)

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