void LabelToolPlugin::drawRect(QPointF point_a, QPointF point_b)
{
clearScene();
drawImage();
qreal width = point_b.x() - point_a.x();
qreal height = point_b.y() - point_a.y();
QPen pen_line(Qt::red);
pen_line.setWidth(4);
scene_->addRect(point_a.x(), point_a.y(), width, height, pen_line);
}
void qtvplugin_grid::cb_paintEvent( QPainter * pImage )
{
int step_level[10] = {20,20,10,10,5,5,2,1,1,1};
double dstep_level[10] = {0.5,0.2,0.1,0.05,0.02,0.01,0.005,0.002,0.001,0.0005};
if (!m_pVi || m_bVisible==false)
return ;
QRect rect = m_pVi->windowRect();
//Get current viewport pos, in LLA
double lat_top,lon_left;
double lat_bottom,lon_right;
m_pVi->CV_DP2LLA(
rect.left(),
rect.top(),
&lat_top,&lon_left
);
if (lat_top >=85) lat_top = 85;
m_pVi->CV_DP2LLA(
rect.right(),
rect.bottom(),
&lat_bottom,&lon_right
);
if (lat_bottom <=-85) lat_bottom = -85;
QPen pen_line(QColor(0,0,0,96)), pen_area(QColor(255,0,0,96));
pen_area.setWidth(4);
QPen oldpen = pImage->pen();
pImage->setPen(pen_line);
char str[1024];
if (m_pVi->level()<9)
{
int step = step_level[m_pVi->level()];
for (int lat=int(lat_bottom/10.0-1.5)*10;lat<=int(lat_top/10.0+1.5)*10&&m_pVi->level()>0;lat+=step)
{
if (lat>=85 || lat<=-85)
continue;
int DP_left,DP_top,DP_right,DP_bottom;
if (false==m_pVi->CV_LLA2DP(lat,lon_left,&DP_left,&DP_top))
continue;
if (false==m_pVi->CV_LLA2DP(lat,lon_right,&DP_right,&DP_bottom))
continue;
pImage->drawLine(DP_left,DP_top,DP_right,DP_bottom);
sprintf(str,"%-3d",lat);
pImage->drawText(DP_left,DP_top-8,str);
}
for (int lon=int(lon_left/10.0-1.5)*10;lon<=(lon_right/10.0+1.5)*10&&m_pVi->level()>0;lon+=step)
{
int DP_left,DP_top,DP_right,DP_bottom;
if (false==m_pVi->CV_LLA2DP(lat_top,lon,&DP_left,&DP_top))
continue;
if (false==m_pVi->CV_LLA2DP(lat_bottom,lon,&DP_right,&DP_bottom))
continue;
pImage->drawLine(DP_left,DP_top,DP_right,DP_bottom);
//warpping
int nLon = lon;
while (nLon<-180)
nLon+=360;
while (nLon>180)
nLon-=360;
sprintf(str,"%-4d",nLon);
pImage->drawText(DP_left,DP_bottom-16,str);
}
}
else
{
double step = dstep_level[m_pVi->level()-9];
for (double lat=int(lat_bottom*(1/step)-1.5)*step;
lat<=int(lat_top*(1/step)+1.5)*step&&m_pVi->level()>0;lat+=step)
{
if (lat>=85 || lat<=-85)
continue;
int DP_left,DP_top,DP_right,DP_bottom;
if (false==m_pVi->CV_LLA2DP(lat,lon_left,&DP_left,&DP_top))
continue;
if (false==m_pVi->CV_LLA2DP(lat,lon_right,&DP_right,&DP_bottom))
continue;
pImage->drawLine(DP_left,DP_top,DP_right,DP_bottom);
sprintf(str,"%-8.3f",lat);
pImage->drawText(DP_left,DP_top-8,str);
}
for (double lon=int(lon_left*(1/step)-1.5)*step;lon<=int(lon_right*(1/step)+1.5)*step&&m_pVi->level()>0;lon+=step)
{
//if (lon>=180 || lon<=-180)
// continue;
int DP_left,DP_top,DP_right,DP_bottom;
if (false==m_pVi->CV_LLA2DP(lat_top,lon,&DP_left,&DP_top))
continue;
if (false==m_pVi->CV_LLA2DP(lat_bottom,lon,&DP_right,&DP_bottom))
continue;
pImage->drawLine(DP_left,DP_top,DP_right,DP_bottom);
//Warpping
float dLon = lon;
while (dLon<-180)
dLon+=360;
while (dLon>180)
dLon-=360;
sprintf(str,"%-8.3f",(float)dLon);
pImage->drawText(DP_left,DP_bottom-16,str);
}
}
int x1,y1,x2,y2;
int sz = m_list_points.size();
QPen pen_text(QColor(0,0,255));
for (int i=0;i<sz-1;++i)
{
m_pVi->CV_LLA2DP(m_list_points[i].x(),m_list_points[i].y(),&x1,&y1);
m_pVi->CV_LLA2DP(m_list_points[i+1].x(),m_list_points[i+1].y(),&x2,&y2);
pImage->setPen(pen_area);
pImage->drawLine(x1,y1,x2,y2);
double sita;
double dis = CalDistance(m_list_points[i].x(),m_list_points[i+1].x(),m_list_points[i].y(),m_list_points[i+1].y(), &sita);
sprintf(str,"%.2lfkm",dis/1000.0);
pImage->setPen(pen_text);
QPointF pos = QLineF(x1,y1,x2,y2).pointAt(i*0.8 / sz+0.1);
pImage->drawText(pos,str);
}
if (bFinished==false && sz>0)
{
m_pVi->CV_LLA2DP(m_list_points.last().x(),m_list_points.last().y(),&x1,&y1);
m_pVi->CV_LLA2DP(m_pt_end.x(),m_pt_end.y(),&x2,&y2);
pImage->setPen(pen_area);
pImage->drawLine(x1,y1,x2,y2);
double sita;
double dis = CalDistance(m_list_points.last().x(),m_pt_end.x(),m_list_points.last().y(),m_pt_end.y(), &sita);
sprintf(str,"%.1lfkm",dis/1000.0);
pImage->setPen(pen_text);
QPointF pos = QLineF(x1,y1,x2,y2).pointAt(1*0.8 / sz+0.1);
pImage->drawText(pos,str);
}
pImage->setPen(oldpen);
}
void LabelToolPlugin::drawQtPolygon(bool connect)
{
//delete everything from scene
clearScene();
// add img to scene
if(!img_with_polygons_.empty())
drawImage();
if(selected_points_.size() == 1)
{
// draw point
double rad = 1;
QPen pen(Qt::blue);
QBrush brush(Qt::SolidPattern);
scene_->addEllipse(selected_points_[0].x() - rad,
selected_points_[0].y() - rad ,
rad * 5.0, rad * 5.0, pen, brush);
}
else
{
if(!connect)
{
QPen pen_point(Qt::blue);
QBrush brush_point(Qt::SolidPattern);
QPen pen_line(Qt::red);
pen_line.setWidth(4);
double rad = 1;
for(int idx = 0; idx < (selected_points_.size() - 1); idx++)
{
scene_->addEllipse(selected_points_[idx].x() - rad,
selected_points_[idx].y() - rad ,
rad * 5.0, rad * 5.0, pen_point, brush_point);
scene_->addLine(selected_points_[idx].x(), selected_points_[idx].y(),
selected_points_[idx + 1].x(), selected_points_[idx + 1].y(),
pen_line);
}
scene_->addEllipse(selected_points_[selected_points_.size() - 1].x() - rad,
selected_points_[selected_points_.size() - 1].y() - rad ,
rad * 5.0, rad * 5.0, pen_point, brush_point);
}
else
{
QPen pen_line(Qt::green);
pen_line.setWidth(4);
for(int idx = 0; idx < (selected_points_.size() - 1); idx++)
{
scene_->addLine(selected_points_[idx].x(), selected_points_[idx].y(),
selected_points_[idx + 1].x(), selected_points_[idx + 1].y(),
pen_line);
}
scene_->addLine(selected_points_[0].x(), selected_points_[0].y(),
selected_points_[selected_points_.size() - 1].x(), selected_points_[selected_points_.size() - 1].y(),
pen_line);
}
}
ui_.graphicsView->show();
ui_.graphicsView->viewport()->repaint();
}