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Fix error in Angle Dimension arc

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This commit is contained in:
WandererFan 2016-12-08 12:55:55 -05:00
parent 867c6e1341
commit 5b630c0e36
1 changed files with 66 additions and 82 deletions
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148
src/Mod/TechDraw/Gui/QGIViewDimension.cpp
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@ -156,7 +156,6 @@ QGIViewDimension::QGIViewDimension() :
//centerMark = new QGICMark();
//addToGroup(centerMark);
// connecting the needed slots and signals
QObject::connect(
datumLabel, SIGNAL(dragging()),
@ -188,7 +187,7 @@ void QGIViewDimension::setViewPartFeature(TechDraw::DrawViewDimension *obj)
setViewFeature(static_cast<TechDraw::DrawView *>(obj));
// Set the QGIGroup Properties based on the DrawView
float x = obj->X.getValue();
float x = obj->X.getValue(); //(0,0)?
float y = obj->Y.getValue();
datumLabel->setPosFromCenter(x, y);
@ -1019,14 +1018,15 @@ void QGIViewDimension::draw()
double labelangle = atan2(-labelVec.y, labelVec.x);
double startangle = atan2(dir1.y,dir1.x);
double range = atan2(-dir1.y*dir2.x+dir1.x*dir2.y,
dir1.x*dir2.x+dir1.y*dir2.y);
double startangle = atan2(dir1.y,dir1.x); //whichever edge was clicked first
double range = atan2(-dir1.y*dir2.x+dir1.x*dir2.y, //atan2(dir1.cross(dir2), dir1.dot(dir2)) =
dir1.x*dir2.x+dir1.y*dir2.y); // angle between dir1,dir2
double endangle = startangle + range;
// Obtain the Label Position and measure the length between intersection
Base::Vector3d lblCenter(datumLabel->X(), datumLabel->Y(), 0);
// Obtain the Label Position
Base::Vector3d lblCenter(datumLabel->X(), datumLabel->Y(), 0); //(0,0) at creation
float bbX = datumLabel->boundingRect().width();
float bbY = datumLabel->boundingRect().height();
@ -1046,6 +1046,55 @@ void QGIViewDimension::draw()
p1 += (p1-p0).Normalize() * 5.;
p2 += (p2-p0).Normalize() * 5.;
double l = labelangle;
double s = startangle;
double e = endangle;
//map angles onto [0,2PI]
if (l < 0.0) {
l += 2.0 * M_PI;
}
if (s < 0.0) {
s += 2.0 * M_PI;
}
if (e < 0.0) {
e += 2.0 * M_PI;
}
double low = std::min(s,e);
double high = std::max(s,e);
double offset;
offset = -low; //rotate low number to 0*
//double offLow = low + offset; //sb always zero
double offHigh = high + offset;
double offLabel = l + offset;
if (offLabel < 0.0) { //make sure offLabel is [0,2PI]
offLabel += 2.0 * M_PI;
}
//where to draw the arc
double arcDir;
double arcRange;
if ((offLabel <= offHigh) &&
(offLabel >= 0.0)) {
arcRange = high - low;
arcDir = 1.0;
} else { //offhigh <= offLabel <= 2PI
arcRange = 2.0 * M_PI - (high - low);
arcDir = -1.0;
}
//flip the arrow heads?
bool isOutside = true;
if (offHigh <= M_PI) { // end is in top half
if (offLabel <= offHigh ) { //label between 0 and offhigh
isOutside = false;
}
} else { //offHigh > M_PI //en is in bottom half
if (offLabel >= offHigh) { //label between offHigh and 0/360
isOutside = false;
}
}
Base::Vector3d ar1Pos = p0;
Base::Vector3d ar2Pos = p0;
@ -1068,72 +1117,9 @@ void QGIViewDimension::draw()
path.lineTo(p2.x, p2.y);
}
bool isOutside = true;
// TODO find a better solution for this. Addmitedely not tidy
// ###############
// Treat zero as positive to be consistent for horizontal lines
if(std::abs(startangle) < FLT_EPSILON)
startangle = 0;
if(std::abs(endangle) < FLT_EPSILON)
endangle = 0;
if(startangle >= 0 && endangle >= 0) {
// Both are in positive side
double langle = labelangle;
if(labelangle < 0)
langle += M_PI * 2;
if(endangle - startangle > 0) {
if(langle > startangle && langle < endangle)
isOutside = false;
} else {
if(langle < startangle && langle > endangle)
isOutside = false;
}
} else if(startangle < 0 && endangle < 0) {
// Both are in positive side
double langle = labelangle;
if(labelangle > 0)
langle -= M_PI * 2;
if(endangle - startangle < 0) {
if(langle > endangle && langle < startangle) // clockwise
isOutside = false;
} else {
if(langle < endangle && langle > startangle) // anticlockwise
isOutside = false;
}
} else if(startangle >= 0 && endangle < 0) {
if(labelangle < startangle && labelangle > endangle) // clockwise
isOutside = false;
} else if(startangle < 0 && endangle >= 0) {
// Both are in positive side
if(labelangle > startangle && labelangle < endangle) // clockwise
isOutside = false;
}
QRectF arcRect(p0.x - length, p0.y - length, 2. * length, 2. * length);
path.arcMoveTo(arcRect, endangle * 180 / M_PI);
if(isOutside) {
if(labelangle > endangle)
{
path.arcTo(arcRect, endangle * 180 / M_PI, (labelangle - endangle) * 180 / M_PI); // chosen a nominal value for 10 degrees
path.arcMoveTo(arcRect,startangle * 180 / M_PI);
path.arcTo(arcRect, startangle * 180 / M_PI, -10);
} else {
path.arcTo(arcRect, endangle * 180 / M_PI, 10); // chosen a nominal value for 10 degrees
path.arcMoveTo(arcRect,startangle * 180 / M_PI);
path.arcTo(arcRect, startangle * 180 / M_PI, (labelangle - startangle) * 180 / M_PI);
}
} else {
path.arcTo(arcRect, endangle * 180 / M_PI, -range * 180 / M_PI);
}
path.arcMoveTo(arcRect, low * 180 / M_PI);
path.arcTo(arcRect, low * 180 / M_PI, arcDir * arcRange * 180 / M_PI);
dimLines->setPath(path);
aHead1->flip(true);
@ -1151,7 +1137,7 @@ void QGIViewDimension::draw()
aHead1->setPos(ar1Pos.x,ar1Pos.y );
aHead2->setPos(ar2Pos.x,ar2Pos.y );
float ar1angle = atan2(-norm1.y, -norm1.x) * 180 / M_PI;
float ar1angle = atan2(-norm1.y, -norm1.x) * 180 / M_PI; //TODO: arrow dir sb tangent to arc.
float ar2angle = atan2(norm2.y, norm2.x) * 180 / M_PI;
if(isOutside) {
@ -1163,19 +1149,17 @@ void QGIViewDimension::draw()
}
// Set the angle of the datum text
Base::Vector3d labelNorm(-labelVec.y, labelVec.x, 0.);
double lAngle = atan2(labelNorm.y, labelNorm.x);
if (lAngle > M_PI_2+M_PI/12) {
lAngle -= M_PI;
} else if (lAngle <= -M_PI_2+M_PI/12) {
lAngle += M_PI;
double angLabelNorm = atan2(labelNorm.y, labelNorm.x);
//if label moves above/below horizontal, flip it right side up
if (angLabelNorm > M_PI_2-M_PI/12) { // label norm angle > 90 - 15 = 85
angLabelNorm -= M_PI; // angLabelNorm - 180 Flip
} else if (angLabelNorm <= -M_PI_2-M_PI/12) { // < -90 - 15 = - 105
angLabelNorm += M_PI; // angLabelNorm + 180 Flip
}
datumLabel->setTransformOriginPoint(bbX / 2., bbY /2.);
datumLabel->setRotation(lAngle * 180 / M_PI);
datumLabel->setRotation(angLabelNorm * 180 / M_PI);
} else {
throw Base::Exception("FVD::draw - Invalid reference for dimension type (4)");