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Use method distSq and MM:: definitions for vertex selection.

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Tats
2014-05-03 13:29:30 -04:00
parent ca78874387
commit d98eb516f4
1 changed files with 4 additions and 3 deletions
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MapperGLCanvas.cpp
+4 -3
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@@ -89,7 +89,9 @@ void MapperGLCanvas::mousePressEvent(QMouseEvent* event)
int i, dist, maxdist, mindist;
int xmouse = event->x();
int ymouse = event->y();
maxdist = mindist = 50;
const QPointF& mousePos = event->posF();
// Note: we compare with the square value for fastest computation of the distance
maxdist = mindist = MM::VERTEX_SELECT_RADIUS * MM::VERTEX_SELECT_RADIUS;
if (event->buttons() & Qt::LeftButton)
{
Shape* shape = getCurrentShape();
@@ -97,8 +99,7 @@ void MapperGLCanvas::mousePressEvent(QMouseEvent* event)
{
for (i = 0; i < shape->nVertices(); i++)
{
const QPointF& p = shape->getVertex(i);
dist = qAbs(xmouse - p.x()) + qAbs(ymouse - p.y());
dist = distSq(mousePos, shape->getVertex(i)); // squared distance
if (dist < maxdist && dist < mindist)
{
_active_vertex = i;