public void replace_scene(String scene_desc) {
String clean_desc;
int crt = 0;
int pos;
if (scene_desc == null) {
System.err.println("\nreplace_scene() scene_desc = null\n");
return;
}
int lng = scene_desc.length();
// user_interface.addInfo("\n scene_desc length=");
// user_interface.addInfo(lng);
// user_interface.addInfo("\n---" + scene_desc.substring(0,5) + "---\n");
// user_interface.addInfo("\n===" + scene_desc.substring(lng-6) + "===\n");
plug_in.replaceScene(scene_desc);
// user_interface.addInfo("!\n End of replace\n");
scene_desc = null;
// scene = null;
// Runtime.getRuntime().gc(); // force immediate gc
}
public void new_scene(String content) {
int pos, begin_pos;
String vrml_camera;
vrml_camera = null;
begin_pos = content.indexOf("DEF World");
if (begin_pos > 0) // ViewPoint message present
{
pos = content.indexOf('}');
vrml_camera = content.substring(begin_pos, pos + 1);
// content = content.substring(pos+1);
}
replace_scene(content);
if (vrml_camera != null) plug_in.set_viewpoint(vrml_camera);
plug_in.bind_view();
}
public void start() {
plug_in = new PlugIn();
plug_in.init();
scene_graph = new SceneGraph();
scene_graph.init();
www_conn = new WWWConnection();
www_conn.init();
update_users();
set_dynamic_usr();
// if(hostsrv != null) user_interface.printInfo(hostsrv);
// user_interface.addInfo(http_port);
}
public void set_viewpoint(String view) {
String position;
String[] position_el;
String orientation;
String[] orientation_el;
String fieldOfView;
int begin_pos, pos, i;
Float tmp_f;
float[] pos_val = null;
float[] or_val = null;
float fv_val = -1;
// user_interface.addInfo(view);
begin_pos = view.indexOf("position");
if (begin_pos > 0) {
position_el = new String[4];
pos_val = new float[3];
position = view.substring(begin_pos);
begin_pos = 0;
// user_interface.addInfo("\n position_el: ");
pos = position.indexOf('\t', begin_pos);
// position_el[0] = position.substring(begin_pos,pos);
// user_interface.addInfo(position_el[0]);
// user_interface.addInfo("|");
begin_pos = pos + 1;
for (i = 0; i < 3; i++) {
pos = position.indexOf(" ", begin_pos);
position_el[i] = position.substring(begin_pos, pos);
tmp_f = Float.valueOf(position_el[i]);
pos_val[i] = tmp_f.floatValue();
// user_interface.addInfo(pos_val[i]);
// user_interface.addInfo("|");
begin_pos = pos + 1;
}
}
begin_pos = view.indexOf("orientation");
if (begin_pos > 0) {
orientation_el = new String[5];
or_val = new float[4];
orientation = view.substring(begin_pos);
begin_pos = 0;
// user_interface.addInfo("\n orientation_el: ");
pos = orientation.indexOf('\t', begin_pos);
// orientation_el[0] = orientation.substring(begin_pos,pos);
// user_interface.addInfo(orientation_el[0]);
// user_interface.addInfo("|");
begin_pos = pos + 1;
for (i = 0; i < 3; i++) {
pos = orientation.indexOf(" ", begin_pos);
orientation_el[i] = orientation.substring(begin_pos, pos);
tmp_f = Float.valueOf(orientation_el[i]);
or_val[i] = tmp_f.floatValue();
// user_interface.addInfo(or_val[i]);
// user_interface.addInfo("|");
begin_pos = pos + 1;
}
pos = orientation.indexOf(" ", begin_pos + 1);
orientation_el[3] = orientation.substring(begin_pos, pos);
tmp_f = Float.valueOf(orientation_el[3]);
or_val[3] = tmp_f.floatValue();
// user_interface.addInfo(or_val[3]);
// user_interface.addInfo("|");
begin_pos = pos + 1;
}
begin_pos = view.indexOf("fieldOf");
if (begin_pos > 0) {
fieldOfView = view.substring(begin_pos);
begin_pos = fieldOfView.indexOf(" ");
pos = fieldOfView.indexOf(" ", begin_pos + 1);
tmp_f = Float.valueOf(fieldOfView.substring(begin_pos, pos));
fv_val = tmp_f.floatValue();
// user_interface.addInfo("\nfieldOfView = ");
// user_interface.addInfo(fv_val);
// user_interface.addInfo("|\n");
}
// user_interface.addInfo("\n======================\n");
plug_in.set_viewpoint(pos_val, or_val, fv_val);
}
public void load_URL(String id) {
plug_in.load_URL(id);
}
public void init_scene() {
scene_graph.ClearScene();
plug_in.init_scene();
}
public void update_xxx() {
plug_in.set_timestep(0);
}