# include <simgear_config.h>
#endif
+#include <vector>
+
+#include <osg/StateSet>
+#include <osg/Geode>
+#include <osg/Geometry>
+#include <osg/Group>
+
#include <simgear/debug/logstream.hxx>
#include <simgear/math/sg_types.hxx>
-#include <simgear/scene/tgdb/leaf.hxx>
+#include <simgear/scene/material/Effect.hxx>
+#include <simgear/scene/material/EffectGeode.hxx>
+#include <simgear/scene/material/mat.hxx>
+#include <simgear/scene/material/matlib.hxx>
#include "apt_signs.hxx"
+#define SIGN "OBJECT_SIGN: "
+#define RWY "OBJECT_RUNWAY_SIGN: "
-ssgBranch *sgMakeTaxiSign( SGMaterialLib *matlib,
- const string path, const string content )
-{
- // for demo purposes we assume each element (letter) is 1x1 meter.
- // Sign is placed 0.25 meters above the ground
+using std::vector;
+using namespace simgear;
- ssgBranch *object = new ssgBranch();
- object->setName( (char *)content.c_str() );
-
- double offset = content.length() / 2.0;
-
- for ( unsigned int i = 0; i < content.length(); ++i ) {
- string material;
-
- char item = content[i];
- if ( item == '<' ) {
- material = "ArrowL.rgb";
- } else if ( item == '>' ) {
- material = "ArrowR.rgb";
- } else if ( item >= 'A' && item <= 'Z' ) {
- material = "Letter";
- material += item;
- material += ".rgb";
- } else if ( item >= 'a' && item <= 'z' ) {
- int tmp = item - 'a';
- char c = 'A' + tmp;
- material = "Black";
- material += c;
- material += ".rgb";
- } else {
- SG_LOG( SG_TERRAIN, SG_ALERT,
- "Unknown taxi sign code = '" << item << "' !!!!" );
- return NULL;
- }
-
- point_list nodes; nodes.clear();
- point_list normals; normals.clear();
- point_list texcoords; texcoords.clear();
- int_list vertex_index; vertex_index.clear();
- int_list normal_index; normal_index.clear();
- int_list tex_index; tex_index.clear();
-
- nodes.push_back( Point3D( -offset + i, 0, 0.25 ) );
- nodes.push_back( Point3D( -offset + i + 1, 0, 0.25 ) );
- nodes.push_back( Point3D( -offset + i, 0, 1.25 ) );
- nodes.push_back( Point3D( -offset + i + 1, 0, 1.25 ) );
-
- normals.push_back( Point3D( 0, -1, 0 ) );
-
- texcoords.push_back( Point3D( 0, 0, 0 ) );
- texcoords.push_back( Point3D( 1, 0, 0 ) );
- texcoords.push_back( Point3D( 0, 1, 0 ) );
- texcoords.push_back( Point3D( 1, 1, 0 ) );
-
- vertex_index.push_back( 0 );
- vertex_index.push_back( 1 );
- vertex_index.push_back( 2 );
- vertex_index.push_back( 3 );
-
- normal_index.push_back( 0 );
- normal_index.push_back( 0 );
- normal_index.push_back( 0 );
- normal_index.push_back( 0 );
-
- tex_index.push_back( 0 );
- tex_index.push_back( 1 );
- tex_index.push_back( 2 );
- tex_index.push_back( 3 );
-
- ssgLeaf *leaf = sgMakeLeaf( path, GL_TRIANGLE_STRIP, matlib, material,
- nodes, normals, texcoords,
- vertex_index, normal_index, tex_index,
- false, NULL );
-
- object->addKid( leaf );
+// for temporary storage of sign elements
+struct element_info {
+ element_info(SGMaterial *m, Effect *s, SGMaterialGlyph *g, double h)
+ : material(m), state(s), glyph(g), height(h)
+ {
+ scale = h * m->get_xsize()
+ / (m->get_ysize() < 0.001 ? 1.0 : m->get_ysize());
}
-
- return object;
-}
-
-
-ssgBranch *sgMakeRunwaySign( SGMaterialLib *matlib,
- const string path, const string name )
+ SGMaterial *material;
+ Effect *state;
+ SGMaterialGlyph *glyph;
+ double height;
+ double scale;
+};
+
+
+// standard panel height sizes
+const double HT[5] = {0.460, 0.610, 0.760, 1.220, 0.760};
+
+
+// translation table for "command" to "glyph name"
+struct pair {
+ const char *keyword;
+ const char *glyph_name;
+} cmds[] = {
+ {"@u", "^u"},
+ {"@d", "^d"},
+ {"@l", "^l"},
+ {"@lu", "^lu"},
+ {"@ul", "^lu"},
+ {"@ld", "^ld"},
+ {"@dl", "^ld"},
+ {"@r", "^r"},
+ {"@ru", "^ru"},
+ {"@ur", "^ru"},
+ {"@rd", "^rd"},
+ {"@dr", "^rd"},
+ {0, 0},
+};
+
+
+// see $FG_ROOT/Docs/README.scenery
+//
+osg::Node*
+SGMakeSign(SGMaterialLib *matlib, const string& path, const string& content)
{
- // for demo purposes we assume each element (letter) is 1x1 meter.
- // Sign is placed 0.25 meters above the ground
-
- ssgBranch *object = new ssgBranch();
- object->setName( (char *)name.c_str() );
-
- double width = name.length() / 3.0;
-
- string material = name + ".rgb";
-
- point_list nodes; nodes.clear();
- point_list normals; normals.clear();
- point_list texcoords; texcoords.clear();
- int_list vertex_index; vertex_index.clear();
- int_list normal_index; normal_index.clear();
- int_list tex_index; tex_index.clear();
-
- nodes.push_back( Point3D( -width, 0, 0.25 ) );
- nodes.push_back( Point3D( width + 1, 0, 0.25 ) );
- nodes.push_back( Point3D( -width, 0, 1.25 ) );
- nodes.push_back( Point3D( width + 1, 0, 1.25 ) );
+ double sign_height = 1.0; // meter
+ bool lighted = true;
+ string newmat = "BlackSign";
+
+ vector<element_info *> elements;
+ element_info *close = 0;
+ double total_width = 0.0;
+ bool cmd = false;
+ int size = -1;
+ char oldtype = 0, newtype = 0;
+
+ osg::Group* object = new osg::Group;
+ object->setName(content);
+
+ SGMaterial *material = 0;
+ Effect *lighted_state = 0;
+ Effect *unlighted_state = 0;
+
+ // Part I: parse & measure
+ for (const char *s = content.data(); *s; s++) {
+ string name;
+ string value;
+
+ if (*s == '{') {
+ if (cmd)
+ SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "unexpected { in sign contents");
+ cmd = true;
+ continue;
+
+ } else if (*s == '}') {
+ if (!cmd)
+ SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "unexpected } in sign contents");
+ cmd = false;
+ continue;
+
+ } else if (!cmd) {
+ name = *s;
+
+ } else {
+ if (*s == ',')
+ continue;
+
+ for (; *s; s++) {
+ name += *s;
+ if (s[1] == ',' || s[1] == '}' || s[1] == '=')
+ break;
+ }
+ if (!*s) {
+ SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "unclosed { in sign contents");
+ } else if (s[1] == '=') {
+ for (s += 2; *s; s++) {
+ value += *s;
+ if (s[1] == ',' || s[1] == '}')
+ break;
+ }
+ if (!*s)
+ SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "unclosed { in sign contents");
+ }
+
+ if (name == "@size") {
+ sign_height = strtod(value.data(), 0);
+ continue;
+ }
+
+ if (name == "@light") {
+ lighted = (value != "0" && value != "no" && value != "off" && value != "false");
+ continue;
+ }
+
+ if (name == "@material") {
+ newmat = value.data();
+ continue;
+
+ } else if (name.size() == 2 || name.size() == 3) {
+ string n = name;
+ if (n.size() == 3 && n[2] >= '1' && n[2] <= '5') {
+ size = n[2] - '1';
+ n = n.substr(0, 2);
+ }
+
+ if (n == "@Y") {
+ if (size < 3) {
+ sign_height = HT[size < 0 ? 2 : size];
+ newmat = "YellowSign";
+ newtype = 'Y';
+ continue;
+ }
+
+ } else if (n == "@R") {
+ if (size < 3) {
+ sign_height = HT[size < 0 ? 2 : size];
+ newmat = "RedSign";
+ newtype = 'R';
+ continue;
+ }
+
+ } else if (n == "@L") {
+ if (size < 3) {
+ sign_height = HT[size < 0 ? 2 : size];
+ newmat = "FramedSign";
+ newtype = 'L';
+ continue;
+ }
+
+ } else if (n == "@B") {
+ if (size < 0 || size == 3 || size == 4) {
+ sign_height = HT[size < 0 ? 3 : size];
+ newmat = "BlackSign";
+ newtype = 'B';
+ continue;
+ }
+ }
+ }
+
+ for (int i = 0; cmds[i].keyword; i++) {
+ if (name == cmds[i].keyword) {
+ name = cmds[i].glyph_name;
+ break;
+ }
+ }
+
+ if (name[0] == '@') {
+ SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "ignoring unknown command `" << name << '\'');
+ continue;
+ }
+ }
+
+ if (newmat.size()) {
+ SGMaterial *m = matlib->find(newmat);
+ if (!m) {
+ // log error, but keep using previous material to at least show something
+ SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "ignoring unknown material `" << newmat << '\'');
+ } else {
+ material = m;
+ // set material states (lighted & unlighted)
+ lighted_state = material->get_effect();
+ newmat.append(".unlighted");
+
+ m = matlib->find(newmat);
+ if (m) {
+ unlighted_state = m->get_effect();
+ } else {
+ SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "ignoring unknown material `" << newmat << '\'');
+ unlighted_state = lighted_state;
+ }
+ }
+ newmat.clear();
+ }
+
+ // This can only happen if the default material is missing.
+ // Error has been already logged in the block above.
+ if (!material) continue;
+
+ SGMaterialGlyph *glyph = material->get_glyph(name);
+ if (!glyph) {
+ SG_LOG( SG_TERRAIN, SG_ALERT, SIGN "unsupported glyph `" << *s << '\'');
+ continue;
+ }
+
+ // in managed mode push frame stop and frame start first
+ Effect *state = lighted ? lighted_state : unlighted_state;
+ element_info *e;
+ if (newtype && newtype != oldtype) {
+ if (close) {
+ elements.push_back(close);
+ total_width += close->glyph->get_width() * close->scale;
+ close = 0;
+ }
+ oldtype = newtype;
+ SGMaterialGlyph *g = material->get_glyph("stop-frame");
+ if (g)
+ close = new element_info(material, state, g, sign_height);
+ g = material->get_glyph("start-frame");
+ if (g) {
+ e = new element_info(material, state, g, sign_height);
+ elements.push_back(e);
+ total_width += e->glyph->get_width() * e->scale;
+ }
+ }
+ // now the actually requested glyph
+ e = new element_info(material, state, glyph, sign_height);
+ elements.push_back(e);
+ total_width += e->glyph->get_width() * e->scale;
+ }
- normals.push_back( Point3D( 0, -1, 0 ) );
+ // in managed mode close frame
+ if (close) {
+ elements.push_back(close);
+ total_width += close->glyph->get_width() * close->scale;
+ close = 0;
+ }
- texcoords.push_back( Point3D( 0, 0, 0 ) );
- texcoords.push_back( Point3D( 1, 0, 0 ) );
- texcoords.push_back( Point3D( 0, 1, 0 ) );
- texcoords.push_back( Point3D( 1, 1, 0 ) );
- vertex_index.push_back( 0 );
- vertex_index.push_back( 1 );
- vertex_index.push_back( 2 );
- vertex_index.push_back( 3 );
+ // Part II: typeset
+ double hpos = -total_width / 2;
+ const double dist = 0.25; // hard-code distance from surface for now
+
+ for (unsigned int i = 0; i < elements.size(); i++) {
+ element_info *element = elements[i];
+
+ double xoffset = element->glyph->get_left();
+ double height = element->height;
+ double width = element->glyph->get_width();
+ double abswidth = width * element->scale;
+
+ // vertices
+ osg::Vec3Array* vl = new osg::Vec3Array;
+ vl->push_back(osg::Vec3(0, hpos, dist));
+ vl->push_back(osg::Vec3(0, hpos + abswidth, dist));
+ vl->push_back(osg::Vec3(0, hpos, dist + height));
+ vl->push_back(osg::Vec3(0, hpos + abswidth, dist + height));
+
+ // texture coordinates
+ osg::Vec2Array* tl = new osg::Vec2Array;
+ tl->push_back(osg::Vec2(xoffset, 0));
+ tl->push_back(osg::Vec2(xoffset + width, 0));
+ tl->push_back(osg::Vec2(xoffset, 1));
+ tl->push_back(osg::Vec2(xoffset + width, 1));
+
+ // normals
+ osg::Vec3Array* nl = new osg::Vec3Array;
+ nl->push_back(osg::Vec3(0, -1, 0));
+
+ // colors
+ osg::Vec4Array* cl = new osg::Vec4Array;
+ cl->push_back(osg::Vec4(1, 1, 1, 1));
+
+ osg::Geometry* geometry = new osg::Geometry;
+ geometry->setVertexArray(vl);
+ geometry->setNormalArray(nl);
+ geometry->setNormalBinding(osg::Geometry::BIND_OVERALL);
+ geometry->setColorArray(cl);
+ geometry->setColorBinding(osg::Geometry::BIND_OVERALL);
+ geometry->setTexCoordArray(0, tl);
+ geometry->addPrimitiveSet(new osg::DrawArrays(GL_TRIANGLE_STRIP, 0, vl->size()));
+ EffectGeode* geode = new EffectGeode;
+ geode->addDrawable(geometry);
+ geode->setEffect(element->state);
+
+ object->addChild(geode);
+ hpos += abswidth;
+ delete element;
+ }
- normal_index.push_back( 0 );
- normal_index.push_back( 0 );
- normal_index.push_back( 0 );
- normal_index.push_back( 0 );
- tex_index.push_back( 0 );
- tex_index.push_back( 1 );
- tex_index.push_back( 2 );
- tex_index.push_back( 3 );
+ // minimalistic backside
+ osg::Vec3Array* vl = new osg::Vec3Array;
+ vl->push_back(osg::Vec3(0, hpos, dist));
+ vl->push_back(osg::Vec3(0, hpos - total_width, dist));
+ vl->push_back(osg::Vec3(0, hpos, dist + sign_height));
+ vl->push_back(osg::Vec3(0, hpos - total_width, dist + sign_height));
+
+ osg::Vec2Array* tl = new osg::Vec2Array;
+ for (int i = 0; i < 4; ++i)
+ tl->push_back(osg::Vec2(0.0, 0.0));
+ osg::Vec3Array* nl = new osg::Vec3Array;
+ nl->push_back(osg::Vec3(0, 1, 0));
+ osg::Vec4Array* cl = new osg::Vec4Array;
+ cl->push_back(osg::Vec4(0.0, 0.0, 0.0, 1.0));
+ osg::Geometry* geometry = new osg::Geometry;
+ geometry->setVertexArray(vl);
+ geometry->setNormalArray(nl);
+ geometry->setNormalBinding(osg::Geometry::BIND_OVERALL);
+ geometry->setTexCoordArray(0, tl);
+ geometry->setColorArray(cl);
+ geometry->setColorBinding(osg::Geometry::BIND_OVERALL);
+ geometry->addPrimitiveSet(new osg::DrawArrays(GL_TRIANGLE_STRIP, 0, vl->size()));
+ EffectGeode* geode = new EffectGeode;
+ geode->addDrawable(geometry);
+ SGMaterial *mat = matlib->find("BlackSign");
+ if (mat)
+ geode->setEffect(mat->get_effect());
+ object->addChild(geode);
- ssgLeaf *leaf = sgMakeLeaf( path, GL_TRIANGLE_STRIP, matlib, material,
- nodes, normals, texcoords,
- vertex_index, normal_index, tex_index,
- false, NULL );
+ return object;
+}
- object->addKid( leaf );
+osg::Node*
+SGMakeRunwaySign(SGMaterialLib *matlib, const string& path, const string& name)
+{
+ // for demo purposes we assume each element (letter) is 1x1 meter.
+ // Sign is placed 0.25 meters above the ground
- return object;
+ float width = name.length() / 3.0;
+
+ osg::Vec3 corner(-width, 0, 0.25f);
+ osg::Vec3 widthVec(2*width + 1, 0, 0);
+ osg::Vec3 heightVec(0, 0, 1);
+ osg::Geometry* geometry;
+ geometry = osg::createTexturedQuadGeometry(corner, widthVec, heightVec);
+ EffectGeode* geode = new EffectGeode;
+ geode->setName(name);
+ geode->addDrawable(geometry);
+ SGMaterial *mat = matlib->find(name);
+ if (mat)
+ geode->setEffect(mat->get_effect());
+
+ return geode;
}
projects / simgear.git / blobdiff