677ec873be
the ascii scenery file format has actually worked in quite some time, and the ADA runway light code has been supersceded by a slightly different mechanism.
741 lines
20 KiB
C++
741 lines
20 KiB
C++
// model.cxx - manage a 3D aircraft model.
|
||
// Written by David Megginson, started 2002.
|
||
//
|
||
// This file is in the Public Domain, and comes with no warranty.
|
||
|
||
#ifdef HAVE_CONFIG_H
|
||
# include <config.h>
|
||
#endif
|
||
|
||
#include <string.h> // for strcmp()
|
||
|
||
#include <plib/sg.h>
|
||
#include <plib/ssg.h>
|
||
#include <plib/ul.h>
|
||
|
||
#include <simgear/compiler.h>
|
||
#include <simgear/debug/logstream.hxx>
|
||
#include <simgear/math/interpolater.hxx>
|
||
#include <simgear/math/point3d.hxx>
|
||
#include <simgear/math/sg_geodesy.hxx>
|
||
#include <simgear/misc/exception.hxx>
|
||
#include <simgear/misc/sg_path.hxx>
|
||
#include <simgear/props/condition.hxx>
|
||
#include <simgear/props/props_io.hxx>
|
||
#include <simgear/scene/model/location.hxx>
|
||
|
||
#include "model.hxx"
|
||
#include "panelnode.hxx"
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Static utility functions.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
/**
|
||
* Callback to update an animation.
|
||
*/
|
||
static int
|
||
animation_callback (ssgEntity * entity, int mask)
|
||
{
|
||
((Animation *)entity->getUserData())->update();
|
||
return true;
|
||
}
|
||
|
||
|
||
/**
|
||
* Locate a named SSG node in a branch.
|
||
*/
|
||
static ssgEntity *
|
||
find_named_node (ssgEntity * node, const char * name)
|
||
{
|
||
char * node_name = node->getName();
|
||
if (node_name != 0 && !strcmp(name, node_name))
|
||
return node;
|
||
else if (node->isAKindOf(ssgTypeBranch())) {
|
||
int nKids = node->getNumKids();
|
||
for (int i = 0; i < nKids; i++) {
|
||
ssgEntity * result =
|
||
find_named_node(((ssgBranch*)node)->getKid(i), name);
|
||
if (result != 0)
|
||
return result;
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/**
|
||
* Splice a branch in between all child nodes and their parents.
|
||
*/
|
||
static void
|
||
splice_branch (ssgBranch * branch, ssgEntity * child)
|
||
{
|
||
int nParents = child->getNumParents();
|
||
branch->addKid(child);
|
||
for (int i = 0; i < nParents; i++) {
|
||
ssgBranch * parent = child->getParent(i);
|
||
parent->replaceKid(child, branch);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Set up the transform matrix for a spin or rotation.
|
||
*/
|
||
static void
|
||
set_rotation (sgMat4 &matrix, double position_deg,
|
||
sgVec3 ¢er, sgVec3 &axis)
|
||
{
|
||
float temp_angle = -position_deg * SG_DEGREES_TO_RADIANS ;
|
||
|
||
float s = (float) sin ( temp_angle ) ;
|
||
float c = (float) cos ( temp_angle ) ;
|
||
float t = SG_ONE - c ;
|
||
|
||
// axis was normalized at load time
|
||
// hint to the compiler to put these into FP registers
|
||
float x = axis[0];
|
||
float y = axis[1];
|
||
float z = axis[2];
|
||
|
||
matrix[0][0] = t * x * x + c ;
|
||
matrix[0][1] = t * y * x - s * z ;
|
||
matrix[0][2] = t * z * x + s * y ;
|
||
matrix[0][3] = SG_ZERO;
|
||
|
||
matrix[1][0] = t * x * y + s * z ;
|
||
matrix[1][1] = t * y * y + c ;
|
||
matrix[1][2] = t * z * y - s * x ;
|
||
matrix[1][3] = SG_ZERO;
|
||
|
||
matrix[2][0] = t * x * z - s * y ;
|
||
matrix[2][1] = t * y * z + s * x ;
|
||
matrix[2][2] = t * z * z + c ;
|
||
matrix[2][3] = SG_ZERO;
|
||
|
||
// hint to the compiler to put these into FP registers
|
||
x = center[0];
|
||
y = center[1];
|
||
z = center[2];
|
||
|
||
matrix[3][0] = x - x*matrix[0][0] - y*matrix[1][0] - z*matrix[2][0];
|
||
matrix[3][1] = y - x*matrix[0][1] - y*matrix[1][1] - z*matrix[2][1];
|
||
matrix[3][2] = z - x*matrix[0][2] - y*matrix[1][2] - z*matrix[2][2];
|
||
matrix[3][3] = SG_ONE;
|
||
}
|
||
|
||
/**
|
||
* Set up the transform matrix for a translation.
|
||
*/
|
||
static void
|
||
set_translation (sgMat4 &matrix, double position_m, sgVec3 &axis)
|
||
{
|
||
sgVec3 xyz;
|
||
sgScaleVec3(xyz, axis, position_m);
|
||
sgMakeTransMat4(matrix, xyz);
|
||
}
|
||
|
||
|
||
/**
|
||
* Make an offset matrix from rotations and position offset.
|
||
*/
|
||
static void
|
||
make_offsets_matrix (sgMat4 * result, double h_rot, double p_rot, double r_rot,
|
||
double x_off, double y_off, double z_off)
|
||
{
|
||
sgMat4 rot_matrix;
|
||
sgMat4 pos_matrix;
|
||
sgMakeRotMat4(rot_matrix, h_rot, p_rot, r_rot);
|
||
sgMakeTransMat4(pos_matrix, x_off, y_off, z_off);
|
||
sgMultMat4(*result, pos_matrix, rot_matrix);
|
||
}
|
||
|
||
|
||
/**
|
||
* Read an interpolation table from properties.
|
||
*/
|
||
static SGInterpTable *
|
||
read_interpolation_table (SGPropertyNode_ptr props)
|
||
{
|
||
SGPropertyNode_ptr table_node = props->getNode("interpolation");
|
||
if (table_node != 0) {
|
||
SGInterpTable * table = new SGInterpTable();
|
||
vector<SGPropertyNode_ptr> entries = table_node->getChildren("entry");
|
||
for (unsigned int i = 0; i < entries.size(); i++)
|
||
table->addEntry(entries[i]->getDoubleValue("ind", 0.0),
|
||
entries[i]->getDoubleValue("dep", 0.0));
|
||
return table;
|
||
} else {
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
make_animation (ssgBranch * model,
|
||
const char * name,
|
||
vector<SGPropertyNode_ptr> &name_nodes,
|
||
SGPropertyNode *prop_root,
|
||
SGPropertyNode_ptr node,
|
||
double sim_time_sec )
|
||
{
|
||
Animation * animation = 0;
|
||
const char * type = node->getStringValue("type", "none");
|
||
if (!strcmp("none", type)) {
|
||
animation = new NullAnimation(node);
|
||
} else if (!strcmp("range", type)) {
|
||
animation = new RangeAnimation(node);
|
||
} else if (!strcmp("billboard", type)) {
|
||
animation = new BillboardAnimation(node);
|
||
} else if (!strcmp("select", type)) {
|
||
animation = new SelectAnimation(prop_root, node);
|
||
} else if (!strcmp("spin", type)) {
|
||
animation = new SpinAnimation(prop_root, node, sim_time_sec );
|
||
} else if (!strcmp("timed", type)) {
|
||
animation = new TimedAnimation(node);
|
||
} else if (!strcmp("rotate", type)) {
|
||
animation = new RotateAnimation(prop_root, node);
|
||
} else if (!strcmp("translate", type)) {
|
||
animation = new TranslateAnimation(prop_root, node);
|
||
} else {
|
||
animation = new NullAnimation(node);
|
||
SG_LOG(SG_INPUT, SG_WARN, "Unknown animation type " << type);
|
||
}
|
||
|
||
if (name != 0)
|
||
animation->setName((char *)name);
|
||
|
||
ssgEntity * object;
|
||
if (name_nodes.size() > 0) {
|
||
object = find_named_node(model, name_nodes[0]->getStringValue());
|
||
if (object == 0) {
|
||
SG_LOG(SG_INPUT, SG_WARN, "Object " << name_nodes[0]->getStringValue()
|
||
<< " not found");
|
||
delete animation;
|
||
animation = 0;
|
||
}
|
||
} else {
|
||
object = model;
|
||
}
|
||
|
||
ssgBranch * branch = animation->getBranch();
|
||
splice_branch(branch, object);
|
||
|
||
for (unsigned int i = 1; i < name_nodes.size(); i++) {
|
||
const char * name = name_nodes[i]->getStringValue();
|
||
object = find_named_node(model, name);
|
||
if (object == 0) {
|
||
SG_LOG(SG_INPUT, SG_WARN, "Object " << name << " not found");
|
||
delete animation;
|
||
animation = 0;
|
||
}
|
||
ssgBranch * oldParent = object->getParent(0);
|
||
branch->addKid(object);
|
||
oldParent->removeKid(object);
|
||
}
|
||
|
||
animation->init();
|
||
branch->setUserData(animation);
|
||
branch->setTravCallback(SSG_CALLBACK_PRETRAV, animation_callback);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Global functions.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
ssgBranch *
|
||
fgLoad3DModel( const string &fg_root, const string &path,
|
||
SGPropertyNode *prop_root,
|
||
double sim_time_sec )
|
||
{
|
||
ssgBranch * model = 0;
|
||
SGPropertyNode props;
|
||
|
||
// Load the 3D aircraft object itself
|
||
SGPath xmlpath;
|
||
SGPath modelpath = path;
|
||
if ( ulIsAbsolutePathName( path.c_str() ) ) {
|
||
xmlpath = modelpath;
|
||
}
|
||
else {
|
||
xmlpath = fg_root;
|
||
xmlpath.append(modelpath.str());
|
||
}
|
||
|
||
// Check for an XML wrapper
|
||
if (xmlpath.str().substr(xmlpath.str().size() - 4, 4) == ".xml") {
|
||
readProperties(xmlpath.str(), &props);
|
||
if (props.hasValue("/path")) {
|
||
modelpath = modelpath.dir();
|
||
modelpath.append(props.getStringValue("/path"));
|
||
} else {
|
||
if (model == 0)
|
||
model = new ssgBranch;
|
||
}
|
||
}
|
||
|
||
// Assume that textures are in
|
||
// the same location as the XML file.
|
||
if (model == 0) {
|
||
ssgTexturePath((char *)xmlpath.dir().c_str());
|
||
model = (ssgBranch *)ssgLoad((char *)modelpath.c_str());
|
||
if (model == 0)
|
||
throw sg_exception("Failed to load 3D model");
|
||
}
|
||
|
||
// Set up the alignment node
|
||
ssgTransform * alignmainmodel = new ssgTransform;
|
||
alignmainmodel->addKid(model);
|
||
sgMat4 res_matrix;
|
||
make_offsets_matrix(&res_matrix,
|
||
props.getFloatValue("/offsets/heading-deg", 0.0),
|
||
props.getFloatValue("/offsets/roll-deg", 0.0),
|
||
props.getFloatValue("/offsets/pitch-deg", 0.0),
|
||
props.getFloatValue("/offsets/x-m", 0.0),
|
||
props.getFloatValue("/offsets/y-m", 0.0),
|
||
props.getFloatValue("/offsets/z-m", 0.0));
|
||
alignmainmodel->setTransform(res_matrix);
|
||
|
||
// Load panels
|
||
unsigned int i;
|
||
vector<SGPropertyNode_ptr> panel_nodes = props.getChildren("panel");
|
||
for (i = 0; i < panel_nodes.size(); i++) {
|
||
SG_LOG(SG_INPUT, SG_DEBUG, "Loading a panel");
|
||
FGPanelNode * panel = new FGPanelNode(panel_nodes[i]);
|
||
if (panel_nodes[i]->hasValue("name"))
|
||
panel->setName((char *)panel_nodes[i]->getStringValue("name"));
|
||
model->addKid(panel);
|
||
}
|
||
|
||
// Load animations
|
||
vector<SGPropertyNode_ptr> animation_nodes = props.getChildren("animation");
|
||
for (i = 0; i < animation_nodes.size(); i++) {
|
||
const char * name = animation_nodes[i]->getStringValue("name", 0);
|
||
vector<SGPropertyNode_ptr> name_nodes =
|
||
animation_nodes[i]->getChildren("object-name");
|
||
make_animation( model, name, name_nodes, prop_root, animation_nodes[i],
|
||
sim_time_sec);
|
||
}
|
||
|
||
// Load sub-models
|
||
vector<SGPropertyNode_ptr> model_nodes = props.getChildren("model");
|
||
for (i = 0; i < model_nodes.size(); i++) {
|
||
SGPropertyNode_ptr node = model_nodes[i];
|
||
ssgTransform * align = new ssgTransform;
|
||
sgMat4 res_matrix;
|
||
make_offsets_matrix(&res_matrix,
|
||
node->getFloatValue("offsets/heading-deg", 0.0),
|
||
node->getFloatValue("offsets/roll-deg", 0.0),
|
||
node->getFloatValue("offsets/pitch-deg", 0.0),
|
||
node->getFloatValue("offsets/x-m", 0.0),
|
||
node->getFloatValue("offsets/y-m", 0.0),
|
||
node->getFloatValue("offsets/z-m", 0.0));
|
||
align->setTransform(res_matrix);
|
||
|
||
ssgBranch * kid = fgLoad3DModel( fg_root, node->getStringValue("path"),
|
||
prop_root, sim_time_sec );
|
||
align->addKid(kid);
|
||
model->addKid(align);
|
||
}
|
||
|
||
return alignmainmodel;
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of Animation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
Animation::Animation (SGPropertyNode_ptr props, ssgBranch * branch)
|
||
: _branch(branch)
|
||
{
|
||
_branch->setName(props->getStringValue("name", 0));
|
||
}
|
||
|
||
Animation::~Animation ()
|
||
{
|
||
}
|
||
|
||
void
|
||
Animation::init ()
|
||
{
|
||
}
|
||
|
||
void
|
||
Animation::update ()
|
||
{
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of NullAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
NullAnimation::NullAnimation (SGPropertyNode_ptr props)
|
||
: Animation(props, new ssgBranch)
|
||
{
|
||
}
|
||
|
||
NullAnimation::~NullAnimation ()
|
||
{
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of RangeAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
RangeAnimation::RangeAnimation (SGPropertyNode_ptr props)
|
||
: Animation(props, new ssgRangeSelector)
|
||
{
|
||
float ranges[] = { props->getFloatValue("min-m", 0),
|
||
props->getFloatValue("max-m", 5000) };
|
||
((ssgRangeSelector *)_branch)->setRanges(ranges, 2);
|
||
|
||
}
|
||
|
||
RangeAnimation::~RangeAnimation ()
|
||
{
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of BillboardAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
BillboardAnimation::BillboardAnimation (SGPropertyNode_ptr props)
|
||
: Animation(props, new ssgCutout(props->getBoolValue("spherical", true)))
|
||
{
|
||
}
|
||
|
||
BillboardAnimation::~BillboardAnimation ()
|
||
{
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of SelectAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
SelectAnimation::SelectAnimation( SGPropertyNode *prop_root,
|
||
SGPropertyNode_ptr props )
|
||
: Animation(props, new ssgSelector),
|
||
_condition(0)
|
||
{
|
||
SGPropertyNode_ptr node = props->getChild("condition");
|
||
if (node != 0)
|
||
_condition = fgReadCondition(prop_root, node);
|
||
}
|
||
|
||
SelectAnimation::~SelectAnimation ()
|
||
{
|
||
delete _condition;
|
||
}
|
||
|
||
void
|
||
SelectAnimation::update ()
|
||
{
|
||
if (_condition != 0 && _condition->test())
|
||
((ssgSelector *)_branch)->select(0xffff);
|
||
else
|
||
((ssgSelector *)_branch)->select(0x0000);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of SpinAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
SpinAnimation::SpinAnimation( SGPropertyNode *prop_root,
|
||
SGPropertyNode_ptr props,
|
||
double sim_time_sec )
|
||
: Animation(props, new ssgTransform),
|
||
_prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
|
||
_factor(props->getDoubleValue("factor", 1.0)),
|
||
_position_deg(props->getDoubleValue("starting-position-deg", 0)),
|
||
_last_time_sec( sim_time_sec /* globals->get_sim_time_sec() */ )
|
||
{
|
||
_center[0] = props->getFloatValue("center/x-m", 0);
|
||
_center[1] = props->getFloatValue("center/y-m", 0);
|
||
_center[2] = props->getFloatValue("center/z-m", 0);
|
||
_axis[0] = props->getFloatValue("axis/x", 0);
|
||
_axis[1] = props->getFloatValue("axis/y", 0);
|
||
_axis[2] = props->getFloatValue("axis/z", 0);
|
||
sgNormalizeVec3(_axis);
|
||
}
|
||
|
||
SpinAnimation::~SpinAnimation ()
|
||
{
|
||
}
|
||
|
||
void
|
||
SpinAnimation::update( double sim_time_sec )
|
||
{
|
||
double dt = sim_time_sec - _last_time_sec;
|
||
_last_time_sec = sim_time_sec;
|
||
|
||
float velocity_rpms = (_prop->getDoubleValue() * _factor / 60.0);
|
||
_position_deg += (dt * velocity_rpms * 360);
|
||
while (_position_deg < 0)
|
||
_position_deg += 360.0;
|
||
while (_position_deg >= 360.0)
|
||
_position_deg -= 360.0;
|
||
set_rotation(_matrix, _position_deg, _center, _axis);
|
||
((ssgTransform *)_branch)->setTransform(_matrix);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of TimedAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
TimedAnimation::TimedAnimation (SGPropertyNode_ptr props)
|
||
: Animation(props, new ssgSelector),
|
||
_duration_sec(props->getDoubleValue("duration-sec", 1.0)),
|
||
_last_time_sec(0),
|
||
_step(-1)
|
||
{
|
||
}
|
||
|
||
TimedAnimation::~TimedAnimation ()
|
||
{
|
||
}
|
||
|
||
void
|
||
TimedAnimation::update( double sim_time_sec )
|
||
{
|
||
if ((sim_time_sec - _last_time_sec) >= _duration_sec) {
|
||
_last_time_sec = sim_time_sec;
|
||
_step++;
|
||
if (_step >= getBranch()->getNumKids())
|
||
_step = 0;
|
||
((ssgSelector *)getBranch())->selectStep(_step);
|
||
}
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of RotateAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
RotateAnimation::RotateAnimation( SGPropertyNode *prop_root,
|
||
SGPropertyNode_ptr props )
|
||
: Animation(props, new ssgTransform),
|
||
_prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
|
||
_offset_deg(props->getDoubleValue("offset-deg", 0.0)),
|
||
_factor(props->getDoubleValue("factor", 1.0)),
|
||
_table(read_interpolation_table(props)),
|
||
_has_min(props->hasValue("min-deg")),
|
||
_min_deg(props->getDoubleValue("min-deg")),
|
||
_has_max(props->hasValue("max-deg")),
|
||
_max_deg(props->getDoubleValue("max-deg")),
|
||
_position_deg(props->getDoubleValue("starting-position-deg", 0))
|
||
{
|
||
_center[0] = props->getFloatValue("center/x-m", 0);
|
||
_center[1] = props->getFloatValue("center/y-m", 0);
|
||
_center[2] = props->getFloatValue("center/z-m", 0);
|
||
_axis[0] = props->getFloatValue("axis/x", 0);
|
||
_axis[1] = props->getFloatValue("axis/y", 0);
|
||
_axis[2] = props->getFloatValue("axis/z", 0);
|
||
sgNormalizeVec3(_axis);
|
||
}
|
||
|
||
RotateAnimation::~RotateAnimation ()
|
||
{
|
||
delete _table;
|
||
}
|
||
|
||
void
|
||
RotateAnimation::update()
|
||
{
|
||
if (_table == 0) {
|
||
_position_deg = _prop->getDoubleValue() * _factor + _offset_deg;
|
||
if (_has_min && _position_deg < _min_deg)
|
||
_position_deg = _min_deg;
|
||
if (_has_max && _position_deg > _max_deg)
|
||
_position_deg = _max_deg;
|
||
} else {
|
||
_position_deg = _table->interpolate(_prop->getDoubleValue());
|
||
}
|
||
set_rotation(_matrix, _position_deg, _center, _axis);
|
||
((ssgTransform *)_branch)->setTransform(_matrix);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of TranslateAnimation
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
TranslateAnimation::TranslateAnimation( SGPropertyNode *prop_root,
|
||
SGPropertyNode_ptr props )
|
||
: Animation(props, new ssgTransform),
|
||
_prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
|
||
_offset_m(props->getDoubleValue("offset-m", 0.0)),
|
||
_factor(props->getDoubleValue("factor", 1.0)),
|
||
_table(read_interpolation_table(props)),
|
||
_has_min(props->hasValue("min-m")),
|
||
_min_m(props->getDoubleValue("min-m")),
|
||
_has_max(props->hasValue("max-m")),
|
||
_max_m(props->getDoubleValue("max-m")),
|
||
_position_m(props->getDoubleValue("starting-position-m", 0))
|
||
{
|
||
_axis[0] = props->getFloatValue("axis/x", 0);
|
||
_axis[1] = props->getFloatValue("axis/y", 0);
|
||
_axis[2] = props->getFloatValue("axis/z", 0);
|
||
sgNormalizeVec3(_axis);
|
||
}
|
||
|
||
TranslateAnimation::~TranslateAnimation ()
|
||
{
|
||
delete _table;
|
||
}
|
||
|
||
void
|
||
TranslateAnimation::update ()
|
||
{
|
||
if (_table == 0) {
|
||
_position_m = (_prop->getDoubleValue() + _offset_m) * _factor;
|
||
if (_has_min && _position_m < _min_m)
|
||
_position_m = _min_m;
|
||
if (_has_max && _position_m > _max_m)
|
||
_position_m = _max_m;
|
||
} else {
|
||
_position_m = _table->interpolate(_prop->getDoubleValue());
|
||
}
|
||
set_translation(_matrix, _position_m, _axis);
|
||
((ssgTransform *)_branch)->setTransform(_matrix);
|
||
}
|
||
|
||
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
// Implementation of FGModelPlacement.
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
FGModelPlacement::FGModelPlacement ()
|
||
: _lon_deg(0),
|
||
_lat_deg(0),
|
||
_elev_ft(0),
|
||
_roll_deg(0),
|
||
_pitch_deg(0),
|
||
_heading_deg(0),
|
||
_selector(new ssgSelector),
|
||
_position(new ssgTransform),
|
||
_location(new FGLocation)
|
||
{
|
||
}
|
||
|
||
FGModelPlacement::~FGModelPlacement ()
|
||
{
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::init( const string &fg_root,
|
||
const string &path,
|
||
SGPropertyNode *prop_root,
|
||
double sim_time_sec )
|
||
{
|
||
ssgBranch * model = fgLoad3DModel( fg_root, path, prop_root, sim_time_sec );
|
||
if (model != 0)
|
||
_position->addKid(model);
|
||
_selector->addKid(_position);
|
||
_selector->clrTraversalMaskBits(SSGTRAV_HOT);
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::update( const Point3D scenery_center )
|
||
{
|
||
_location->setPosition( _lon_deg, _lat_deg, _elev_ft );
|
||
_location->setOrientation( _roll_deg, _pitch_deg, _heading_deg );
|
||
|
||
sgCopyMat4( POS, _location->getTransformMatrix(scenery_center) );
|
||
|
||
sgVec3 trans;
|
||
sgCopyVec3(trans, _location->get_view_pos());
|
||
|
||
for(int i = 0; i < 4; i++) {
|
||
float tmp = POS[i][3];
|
||
for( int j=0; j<3; j++ ) {
|
||
POS[i][j] += (tmp * trans[j]);
|
||
}
|
||
}
|
||
_position->setTransform(POS);
|
||
}
|
||
|
||
bool
|
||
FGModelPlacement::getVisible () const
|
||
{
|
||
return (_selector->getSelect() != 0);
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setVisible (bool visible)
|
||
{
|
||
_selector->select(visible);
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setLongitudeDeg (double lon_deg)
|
||
{
|
||
_lon_deg = lon_deg;
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setLatitudeDeg (double lat_deg)
|
||
{
|
||
_lat_deg = lat_deg;
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setElevationFt (double elev_ft)
|
||
{
|
||
_elev_ft = elev_ft;
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setPosition (double lon_deg, double lat_deg, double elev_ft)
|
||
{
|
||
_lon_deg = lon_deg;
|
||
_lat_deg = lat_deg;
|
||
_elev_ft = elev_ft;
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setRollDeg (double roll_deg)
|
||
{
|
||
_roll_deg = roll_deg;
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setPitchDeg (double pitch_deg)
|
||
{
|
||
_pitch_deg = pitch_deg;
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setHeadingDeg (double heading_deg)
|
||
{
|
||
_heading_deg = heading_deg;
|
||
}
|
||
|
||
void
|
||
FGModelPlacement::setOrientation (double roll_deg, double pitch_deg,
|
||
double heading_deg)
|
||
{
|
||
_roll_deg = roll_deg;
|
||
_pitch_deg = pitch_deg;
|
||
_heading_deg = heading_deg;
|
||
}
|
||
|
||
// end of model.cxx
|