bool RArcData::moveReferencePoint(const RVector& referencePoint, const RVector& targetPoint) {
bool ret = false;
if (referencePoint.equalsFuzzy(center)) {
center = targetPoint;
ret = true;
} else if (referencePoint.equalsFuzzy(getStartPoint())) {
moveStartPoint(targetPoint);
ret = true;
} else if (referencePoint.equalsFuzzy(getEndPoint())) {
moveEndPoint(targetPoint);
ret = true;
}
else if (referencePoint.equalsFuzzy(center + RVector(radius, 0)) ||
referencePoint.equalsFuzzy(center + RVector(0, radius)) ||
referencePoint.equalsFuzzy(center - RVector(radius, 0)) ||
referencePoint.equalsFuzzy(center - RVector(0, radius))) {
radius = center.getDistanceTo(targetPoint);
ret = true;
}
else if (referencePoint.equalsFuzzy(getMiddlePoint())) {
moveMiddlePoint(targetPoint);
ret = true;
}
return ret;
}
bool REllipseData::moveReferencePoint(const RVector& referencePoint,
const RVector& targetPoint) {
RVector startPoint = getStartPoint();
RVector endPoint = getEndPoint();
if (!isFullEllipse()) {
if (referencePoint.equalsFuzzy(startPoint)) {
moveStartPoint(targetPoint, true);
return true;
}
if (referencePoint.equalsFuzzy(endPoint)) {
moveEndPoint(targetPoint, true);
return true;
}
}
if (referencePoint.equalsFuzzy(center+majorPoint)) {
double minorRadius = getMinorRadius();
majorPoint = targetPoint-center;
setRatio(minorRadius / getMajorRadius());
return true;
}
if (referencePoint.equalsFuzzy(center-majorPoint)) {
double minorRadius = getMinorRadius();
majorPoint = -(targetPoint-center);
setRatio(minorRadius / getMajorRadius());
return true;
}
if (referencePoint.equalsFuzzy(center+getMinorPoint())) {
setMinorPoint(targetPoint-center);
return true;
}
if (referencePoint.equalsFuzzy(center-getMinorPoint())) {
setMinorPoint(-(targetPoint-center));
return true;
}
if (referencePoint.equalsFuzzy(center)) {
center = targetPoint;
return true;
}
return false;
}
bool RArc::stretch(const RPolyline& area, const RVector& offset) {
bool ret = false;
if (area.contains(getStartPoint()) && area.contains(getEndPoint())) {
return move(offset);
}
if (area.contains(getStartPoint())) {
moveStartPoint(getStartPoint() + offset);
ret = true;
}
else if (area.contains(getEndPoint())) {
moveEndPoint(getEndPoint() + offset);
ret = true;
}
return ret;
}
