Kstars

satellitenode.cpp
1/*
2 SPDX-FileCopyrightText: 2016 Artem Fedoskin <afedoskin3@gmail.com>
3 SPDX-License-Identifier: GPL-2.0-or-later
4*/
5
6#include "satellitenode.h"
7
8#include "ksutils.h"
9#include "labelnode.h"
10#include "linelist.h"
11#include "Options.h"
12#include "satellite.h"
13#include "nodes/pointnode.h"
14#include "nodes/polynode.h"
15#include "../rootnode.h"
16#include "../labelsitem.h"
17
18#include <QSGFlatColorMaterial>
19
20SatelliteNode::SatelliteNode(Satellite *sat, RootNode *rootNode)
21 : m_sat(sat), m_rootNode(rootNode)
22{
23}
24
25void SatelliteNode::initLines()
26{
27 if (m_point)
28 {
29 delete m_point;
30 m_point = 0;
31 }
32 if (!m_lines)
33 {
34 m_lines = new QSGGeometryNode;
35 m_geometry = new QSGGeometry(QSGGeometry::defaultAttributes_Point2D(), 0);
36 m_lines->setGeometry(m_geometry);
37 m_lines->setFlag(QSGNode::OwnsGeometry);
38 m_geometry->setDrawingMode(GL_LINES);
39
40 m_material = new QSGFlatColorMaterial;
41 m_lines->setOpaqueMaterial(m_material);
42 m_lines->setFlag(QSGNode::OwnsMaterial);
43 addChildNode(m_lines);
44
45 m_geometry->allocate(8);
46 QSGGeometry::Point2D *vertex = m_geometry->vertexDataAsPoint2D();
47
48 vertex[0].set(-0.5, -0.5);
49 vertex[1].set(0.5, -0.5);
50 vertex[2].set(0.5, -0.5);
51 vertex[3].set(0.5, 0.5);
52 vertex[4].set(0.5, 0.5);
53 vertex[5].set(-0.5, 0.5);
54 vertex[6].set(-0.5, 0.5);
55 vertex[7].set(-0.5, -0.5);
56
57 m_lines->markDirty(QSGNode::DirtyGeometry);
58 m_lines->markDirty(QSGNode::DirtyMaterial);
59 }
60}
61
62void SatelliteNode::initPoint()
63{
64 if (m_lines)
65 {
66 delete m_lines;
67 m_lines = 0;
68 }
69 if (!m_point)
70 {
71 m_point = new PointNode(m_rootNode, 'B', 3.5);
72 addChildNode(m_point);
73 }
74}
75
76void SatelliteNode::update()
77{
78 if (m_sat->selected())
79 {
80 KStarsData *data = KStarsData::Instance();
81 const Projector *m_proj = SkyMapLite::Instance()->projector();
82 QPointF pos;
83
84 bool visible = false;
85
86 m_sat->HorizontalToEquatorial(data->lst(), data->geo()->lat());
87
88 pos = m_proj->toScreen(m_sat, true, &visible);
89
90 if (!visible || !m_proj->onScreen(pos))
91 {
92 hide();
93 return;
94 }
95 show();
96
97 if (Options::drawSatellitesLikeStars())
98 {
99 initPoint();
100 }
101 else
102 {
103 QColor color;
104 initLines();
105 if (m_sat->isVisible())
106 color = data->colorScheme()->colorNamed("VisibleSatColor");
107 else
108 color = data->colorScheme()->colorNamed("SatColor");
109
110 m_material->setColor(color);
111 }
112
113 changePos(pos);
114
115 if (Options::showSatellitesLabels())
116 {
117 if (!m_label)
118 {
119 m_label = SkyMapLite::rootNode()->labelsItem()->addLabel(m_sat, LabelsItem::label_t::SATELLITE_LABEL);
120 }
121 m_label->setLabelPos(pos);
122 }
123 }
124 else
125 {
126 hide();
127 }
128}
129
130void SatelliteNode::hide()
131{
132 SkyNode::hide();
133 if (m_label)
134 m_label->hide();
135}
136
137void SatelliteNode::changePos(QPointF pos)
138{
139 //QSizeF size = m_point->size();
140 QMatrix4x4 m(1, 0, 0, pos.x(), 0, 1, 0, pos.y(), 0, 0, 1, 0, 0, 0, 0, 1);
141 //m.translate(-0.5*size.width(), -0.5*size.height());
142
143 setMatrix(m);
144 markDirty(QSGNode::DirtyMatrix);
145}
ColorScheme::colorNamed
QColor colorNamed(const QString &name) const
Retrieve a color by name.
Definition colorscheme.cpp:89
GeoLocation::lat
const CachingDms * lat() const
Definition geolocation.h:70
KStarsData
KStarsData is the backbone of KStars.
Definition kstarsdata.h:74
KStarsData::lst
CachingDms * lst()
Definition kstarsdata.h:226
KStarsData::colorScheme
ColorScheme * colorScheme()
Definition kstarsdata.h:174
KStarsData::geo
GeoLocation * geo()
Definition kstarsdata.h:232
LabelNode::setLabelPos
void setLabelPos(QPointF pos)
set the position of label with the given offset from SkyObject's position and makes the label visible...
Definition labelnode.cpp:123
LabelsItem::addLabel
LabelNode * addLabel(SkyObject *skyObject, label_t labelType)
Create LabelNode with given skyObject and append it to LabelTypeNode that corresponds to type.
Definition labelsitem.cpp:111
PointNode
SkyOpacityNode derived class that represents stars and planets using cached QSGTexture.
Definition pointnode.h:25
Projector
The Projector class is the primary class that serves as an interface to handle projections.
Definition projector.h:58
Projector::toScreen
QPointF toScreen(const SkyPoint *o, bool oRefract=true, bool * const
This is exactly the same as toScreenVec but it returns a QPointF.
Definition projector.cpp:93
Projector::onScreen
bool onScreen(const QPointF &p) const
Check whether the projected point is on-screen.
Definition projector.cpp:98
RootNode
A QSGClipNode derived class used as a container for holding pointers to nodes and for clipping.
Definition rootnode.h:60
SatelliteNode::changePos
virtual void changePos(QPointF pos) override
changes the position of SkyNode on SkyMapLite.
Definition satellitenode.cpp:137
SatelliteNode::initLines
void initLines()
Initialize m_lines (if not already) to draw satellite with lines.
Definition satellitenode.cpp:25
SatelliteNode::hide
virtual void hide() override
hides all child nodes (sets opacity of m_opacity to 0)
Definition satellitenode.cpp:130
SatelliteNode::SatelliteNode
SatelliteNode(Satellite *sat, RootNode *rootNode)
Constructor.
Definition satellitenode.cpp:20
SatelliteNode::initPoint
void initPoint()
Initialize m_point (if not already) to draw satellite as a star.
Definition satellitenode.cpp:62
SatelliteNode::update
virtual void update() override
Update position and visibility of satellite.
Definition satellitenode.cpp:76
Satellite
Represents an artificial satellites.
Definition satellite.h:23
Satellite::isVisible
bool isVisible()
Definition satellite.cpp:1294
Satellite::selected
bool selected()
Definition satellite.cpp:1299
SkyMapLite::projector
const Projector * projector() const
Get the current projector.
Definition skymaplite.h:323
SkyNode::show
virtual void show()
shows all child nodes (sets opacity of m_opacity to 1)
Definition skynode.cpp:27
SkyNode::hide
virtual void hide()
hides all child nodes (sets opacity of m_opacity to 0)
Definition skynode.cpp:21
SkyNode::visible
bool visible()
Definition skynode.cpp:44
SkyPoint::HorizontalToEquatorial
void HorizontalToEquatorial(const dms *LST, const dms *lat)
Determine the (RA, Dec) coordinates of the SkyPoint from its (Altitude, Azimuth) coordinates,...
Definition skypoint.cpp:143
QPointF::x
qreal x() const const
QPointF::y
qreal y() const const
QSGBasicGeometryNode::setGeometry
void setGeometry(QSGGeometry *geometry)
QSGFlatColorMaterial::setColor
void setColor(const QColor &color)
QSGGeometry::Point2D::set
void set(float x, float y)
QSGGeometry::allocate
void allocate(int vertexCount, int indexCount)
QSGGeometry::defaultAttributes_Point2D
const AttributeSet & defaultAttributes_Point2D()
QSGGeometry::setDrawingMode
void setDrawingMode(unsigned int mode)
QSGGeometry::vertexDataAsPoint2D
Point2D * vertexDataAsPoint2D()
QSGGeometryNode::setOpaqueMaterial
void setOpaqueMaterial(QSGMaterial *material)
QSGNode::markDirty
void markDirty(DirtyState bits)
QSGNode::setFlag
void setFlag(Flag f, bool enabled)
QSGTransformNode::setMatrix
void setMatrix(const QMatrix4x4 &matrix)
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