void Plane::MakeGizmo()
{
float lineSegmentLength = 300;
glm::vec3 planeNormal(normal.x, normal.y, normal.z);
glm::vec3 parallel1(0, 0, 0);
glm::vec3 parallel2(0, 0, 0);
if (planeNormal == glm::vec3(0, 0, 1))
parallel1 = glm::vec3(0, 1, 0);
else
parallel1 = glm::vec3(0, 0, 1);
//get vectors that are perpendecular to the plan
parallel1 = glm::cross(planeNormal, parallel1);
parallel2 = glm::cross(planeNormal, parallel1);
glm::vec3 centrePoint = planeNormal * normal.w;
parallel1 = glm::normalize(parallel1);
parallel2 = glm::normalize(parallel2);
glm::vec3 start = centrePoint + parallel1 * lineSegmentLength;
glm::vec3 end = centrePoint - parallel1 * lineSegmentLength;
Gizmos::addLine(start, end, color);
start = centrePoint + parallel2 * lineSegmentLength;
end = centrePoint - parallel2 * lineSegmentLength;
Gizmos::addLine(start, end, color);
}
/**
* Creates a line parallel to the given line e.
* Out of the 2 possible parallels, the one closest to
* the given coordinate is returned.
*
* @param coord Coordinate to define which parallel we want (typically a
* mouse coordinate).
* @param distance Distance of the parallel.
* @param number Number of parallels.
* @param e Original entity.
*
* @return Pointer to the first created parallel or nullptr if no
* parallel has been created.
*/
RS_Line* RS_Creation::createParallelLine(const RS_Vector& coord,
double distance, int number,
RS_Line* e) {
if (e==nullptr) {
return nullptr;
}
double ang = e->getAngle1() + M_PI_2;
RS_Vector p1, p2;
RS_LineData parallelData;
RS_Line* ret = nullptr;
if (document && handleUndo) {
document->startUndoCycle();
}
for (int num=1; num<=number; ++num) {
// calculate 1st parallel:
p1.setPolar(distance*num, ang);
p1 += e->getStartpoint();
p2.setPolar(distance*num, ang);
p2 += e->getEndpoint();
RS_Line parallel1(nullptr, RS_LineData(p1, p2));
// calculate 2nd parallel:
p1.setPolar(distance*num, ang+M_PI);
p1 += e->getStartpoint();
p2.setPolar(distance*num, ang+M_PI);
p2 += e->getEndpoint();
RS_Line parallel2(nullptr, RS_LineData(p1, p2));
double dist1 = parallel1.getDistanceToPoint(coord);
double dist2 = parallel2.getDistanceToPoint(coord);
double minDist = std::min(dist1, dist2);
if (minDist<RS_MAXDOUBLE) {
if (dist1<dist2) {
parallelData = parallel1.getData();
} else {
parallelData = parallel2.getData();
}
RS_Line* newLine = new RS_Line(container, parallelData);
if (ret==nullptr) {
ret = newLine;
}
setEntity(newLine);
}
}
if (document && handleUndo) {
document->endUndoCycle();
}
return ret;
}
/**
* Creates a line parallel to the given line e.
* Out of the 2 possible parallels, the one closest to
* the given coordinate is returned.
*
* @param coord Coordinate to define which parallel we want (typically a
* mouse coordinate).
* @param distance Distance of the parallel.
* @param number Number of parallels.
* @param e Original entity.
*
* @return Pointer to the first created parallel or NULL if no
* parallel has been created.
*/
RS_Line* RS_Creation::createParallelLine(const RS_Vector& coord,
double distance, int number,
RS_Line* e) {
if (e==NULL) {
return NULL;
}
double ang = e->getAngle1() + M_PI/2.0;
RS_Vector p1, p2;
RS_LineData parallelData;
RS_Line* ret = NULL;
if (document!=NULL && handleUndo) {
document->startUndoCycle();
}
for (int num=1; num<=number; ++num) {
// calculate 1st parallel:
p1.setPolar(distance*num, ang);
p1 += e->getStartpoint();
p2.setPolar(distance*num, ang);
p2 += e->getEndpoint();
RS_Line parallel1(NULL, RS_LineData(p1, p2));
// calculate 2nd parallel:
p1.setPolar(distance*num, ang+M_PI);
p1 += e->getStartpoint();
p2.setPolar(distance*num, ang+M_PI);
p2 += e->getEndpoint();
RS_Line parallel2(NULL, RS_LineData(p1, p2));
double dist1 = parallel1.getDistanceToPoint(coord);
double dist2 = parallel2.getDistanceToPoint(coord);
double minDist = std::min(dist1, dist2);
if (minDist<RS_MAXDOUBLE) {
if (dist1<dist2) {
parallelData = parallel1.getData();
} else {
parallelData = parallel2.getData();
}
RS_Line* newLine = new RS_Line(container, parallelData);
newLine->setLayerToActive();
newLine->setPenToActive();
if (ret==NULL) {
ret = newLine;
}
if (container!=NULL) {
container->addEntity(newLine);
}
if (document!=NULL && handleUndo) {
document->addUndoable(newLine);
//document->endUndoCycle();
}
if (graphicView!=NULL) {
graphicView->drawEntity(newLine);
}
}
}
if (document!=NULL && handleUndo) {
document->endUndoCycle();
}
return ret;
}