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优化曲线

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2020-07-07 18:02:33 +08:00
parent 198e5c168f
commit 892cd0bf1e
4 changed files with 124 additions and 34 deletions
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opmap/mapwidget/AltitudeItem.cpp
+110 -22
View File
@@ -51,10 +51,17 @@ void AltitudeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *opti
Q_UNUSED(option);
Q_UNUSED(widget);
painter->setRenderHint(QPainter::Antialiasing, true);
QPen ePen;
ePen.setWidth(1);
QFont font;
font.setPixelSize(15);//不随着屏幕分辨率改变而改变
font.setFamily("Arial");//非衬线
painter->setFont(font);
//画底部
painter->save();
ePen.setColor(QColor("#a39d9c"));
@@ -117,27 +124,26 @@ void AltitudeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *opti
if(max != min)
{
V_scale = (float)160.0 / (max - min);
qDebug() << V_scale << max << min;
}
//画坐标数据
if((max != -999999)&&(min != 999999))
{
painter->save();
ePen.setColor(QColor("#ffcc00"));
ePen.setColor(QColor("#FFFFFF"));
painter->setPen(ePen);
painter->translate(20,180);
painter->drawText(QRectF(-20,-180,100,20),Qt::AlignVCenter|Qt::AlignLeft, QString::number(max));
painter->drawText(QRectF(-20, 0,100,20),Qt::AlignVCenter|Qt::AlignLeft, QString::number(min));
painter->restore();
}
float size = Elevation.size();
float step = 360/(size - 1);
QPainterPath Elepath;
QPainterPath Altpath;
//画地形
@@ -149,23 +155,28 @@ void AltitudeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *opti
if(!Elevation.isEmpty())
{
int stepcount = 0;
QPainterPath path;
//QPainterPath path;
Elepath.moveTo(0,0);
QPointF sp;
for (QMap<int, float>::iterator i = Elevation.begin();i != Elevation.end(); ++i)
{
if(i.key() == 0)
{
path.moveTo(stepcount * step, (-i.value() + min) * V_scale);
}
else
{
path.lineTo(stepcount * step, (-i.value() + min) * V_scale);
}
QPointF ep = QPointF(stepcount * step, (-i.value() + min) * V_scale);
QPointF c1 = QPointF((sp.x() + ep.x()) / 2, sp.y());
QPointF c2 = QPointF((sp.x() + ep.x()) / 2, ep.y());
sp = QPointF(stepcount * step, (-i.value() + min) * V_scale);
Elepath.cubicTo(c1, c2, ep);
stepcount++;
}
Elepath.lineTo(360,0);
Elepath.closeSubpath();
painter->drawPath(path);
painter->fillPath(Elepath,QColor("#ffcc00"));
painter->drawPath(Elepath);
}
painter->restore();
@@ -178,28 +189,105 @@ void AltitudeItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *opti
if(!Altitude.isEmpty())
{
int stepcount = 0;
QPainterPath path;
//QPainterPath path;
QPointF sp;
for (QMap<int, float>::iterator i = Altitude.begin();i != Altitude.end(); ++i)
{
if(i.key() == 0)
{
path.moveTo(stepcount * step, (-i.value() + min) * V_scale);
Altpath.moveTo(stepcount * step, (-i.value() + min) * V_scale);
}
else
{
path.lineTo(stepcount * step, (-i.value() + min) * V_scale);
//path.lineTo(stepcount * step, (-i.value() + min) * V_scale);
// 控制点的 x 坐标为 sp 与 ep 的 x 坐标和的一半
// 第一个控制点 c1 的 y 坐标为起始点 sp 的 y 坐标
// 第二个控制点 c2 的 y 坐标为结束点 ep 的 y 坐标
QPointF ep = QPointF(stepcount * step, (-i.value() + min) * V_scale);
QPointF c1 = QPointF((sp.x() + ep.x()) / 2, sp.y());
QPointF c2 = QPointF((sp.x() + ep.x()) / 2, ep.y());
qDebug() << c1 << c2 << sp << ep;
sp = QPointF(stepcount * step, (-i.value() + min) * V_scale);
Altpath.cubicTo(c1, c2, ep);
}
stepcount++;
}
painter->drawPath(Altpath);
}
painter->restore();
//画填充
painter->save();
ePen.setColor(QColor("#ffcc00"));
painter->setPen(ePen);
painter->translate(20,180);
//Altpath.moveTo(Elepath);
//Altpath.addPath(Elepath);
//Altpath.moveTo(0,0);
painter->restore();
//test
//Bezier(painter);
}
void AltitudeItem::Bezier(QPainter *painter)
{
// 曲线上的点
static QList<QPointF> points = QList<QPointF>() << QPointF(0, 0) << QPointF(100,-100) << QPointF(200,-120)
<< QPointF(300,-100) << QPointF(330,-90) << QPointF(350, -70);
QPainterPath path(points[0]);
for (int i = 0; i < points.size() - 1; ++i) {
// 控制点的 x 坐标为 sp 与 ep 的 x 坐标和的一半
// 第一个控制点 c1 的 y 坐标为起始点 sp 的 y 坐标
// 第二个控制点 c2 的 y 坐标为结束点 ep 的 y 坐标
QPointF sp = points[i];
QPointF ep = points[i+1];
QPointF c1 = QPointF((sp.x() + ep.x()) / 2, sp.y());
QPointF c2 = QPointF((sp.x() + ep.x()) / 2, ep.y());
path.cubicTo(c1, c2, ep);
}
painter->save();
painter->setRenderHint(QPainter::Antialiasing, true);
painter->setPen(QPen(Qt::black, 2));
// 绘制 path
painter->translate(40, 130);
painter->drawPath(path);
// 绘制曲线上的点
painter->setBrush(Qt::gray);
for (int i = 0; i < points.size(); ++i) {
painter->drawEllipse(points[i], 4, 4);
}
painter->restore();
}
void AltitudeItem::RefreshPos()
{
this->setPos(this->x(),
opmap/mapwidget/AltitudeItem.h
+2
View File
@@ -62,6 +62,8 @@ private:
QPointF pos_old;
void Bezier(QPainter *painter);
protected:
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
opmap/mapwidget/opmapwidget.cpp
+1 -1
View File
@@ -81,7 +81,7 @@ OPMapWidget::OPMapWidget(QWidget *parent, Configuration *config) : QGraphicsView
altitudeitem = new AltitudeItem(map,Qt::red);
altitudeitem->setParentItem(map);
altitudeitem->setPos(0,this->height() - altitudeitem->boundingRect().height());
altitudeitem->setPos(0,(this->height() - altitudeitem->boundingRect().height())/2);
}
opmap/mapwidget/waypointitem.cpp
+4 -4
View File
@@ -672,7 +672,7 @@ void WayPointItem::setWPProperty(float param1,float param2,float param3,float pa
ElevationTrig();
emit AltitudeChanged(this->Number(),property.z);
}
}
@@ -736,7 +736,7 @@ void WayPointItem::SetDefault(double lat,double lng,float alt,uint16_t seq)
ElevationTrig();
emit AltitudeChanged(this->Number(),property.z);
//emit AltitudeChanged(this->Number(),property.z);
//...
}
@@ -775,7 +775,7 @@ void WayPointItem::SetAlt(float value)
{
property.z = value;
emit AltitudeChanged(this->Number(),property.z);
//emit AltitudeChanged(this->Number(),property.z);
}
@@ -867,7 +867,7 @@ void WayPointItem::ElevationUpdate(QNetworkReply *reply)
qDebug() << "Seq:" << this->Number() << "Elevation" << Elevation;
emit ElevationChanged(this->Number(),Elevation);
emit AltitudeChanged(this->Number(),property.z);
update();
}