Changeset 4297 for trunk/packages

Timestamp:

Mar 28, 2014, 10:56:40 PM (10 years ago)

Author:

ldelgass

Message:

Add methods to query map layers (optionally by type)

Location:

trunk/packages/vizservers/geovis

Files:

• Renderer.h (modified) (3 diffs)
• RendererCmd.cpp (modified) (2 diffs)

trunk/packages/vizservers/geovis/Renderer.h

@@ -172 +172 @@
     }
 
+    void getImageLayerNames(std::vector<std::string>& names)
+    {
+        if (_map.valid()) {
+            osgEarth::ImageLayerVector layerVector;
+            _map->getImageLayers(layerVector);
+            osgEarth::ImageLayerVector::const_iterator itr;
+            for (itr = layerVector.begin(); itr != layerVector.end(); ++itr) {
+                //osgEarth::UID uid = (*itr)->getUID();
+                names.push_back((*itr)->getName());
+            }
+        }
+    }
+
     void addImageLayer(const char *name, osgEarth::TileSourceOptions& opts,
                        bool makeShared = false, bool visible = true);
@@ -194 +207 @@
     }
 
+    void getElevationLayerNames(std::vector<std::string>& names)
+    {
+        if (_map.valid()) {
+            osgEarth::ElevationLayerVector layerVector;
+            _map->getElevationLayers(layerVector);
+            osgEarth::ElevationLayerVector::const_iterator itr;
+            for (itr = layerVector.begin(); itr != layerVector.end(); ++itr) {
+                //osgEarth::UID uid = (*itr)->getUID();
+                names.push_back((*itr)->getName());
+            }
+        }
+    }
+
     void addElevationLayer(const char *name, osgEarth::TileSourceOptions& opts);
 
@@ -207 +233 @@
     {
         return (_map.valid() ? _map->getNumModelLayers() : 0);
+    }
+
+    void getModelLayerNames(std::vector<std::string>& names)
+    {
+        if (_map.valid()) {
+            osgEarth::ModelLayerVector layerVector;
+            _map->getModelLayers(layerVector);
+            osgEarth::ModelLayerVector::const_iterator itr;
+            for (itr = layerVector.begin(); itr != layerVector.end(); ++itr) {
+                //osgEarth::UID uid = (*itr)->getUID();
+                names.push_back((*itr)->getName());
+            }
+        }
     }
 

trunk/packages/vizservers/geovis/RendererCmd.cpp

@@ -733 +733 @@
 
 static int
+MapLayerNamesOp(ClientData clientData, Tcl_Interp *interp, int objc, 
+                Tcl_Obj *const *objv)
+{
+    std::vector<std::string> layers;
+    if (objc < 4) {
+        g_renderer->getImageLayerNames(layers);
+        g_renderer->getElevationLayerNames(layers);
+        g_renderer->getModelLayerNames(layers);
+    } else {
+        char *type = Tcl_GetString(objv[3]);
+        if (type[0] == 'i' && strcmp(type, "image") == 0) {
+            g_renderer->getImageLayerNames(layers);
+        } else if (type[0] == 'e' && strcmp(type, "elevation") == 0) {
+            g_renderer->getElevationLayerNames(layers);
+        } else if (type[0] == 'm' && strcmp(type, "model") == 0) {
+            g_renderer->getModelLayerNames(layers);
+        } else {
+            Tcl_AppendResult(interp, "uknown type \"", type,
+                         "\": must be image, elevation or model", (char*)NULL);
+            return TCL_ERROR;
+        }
+    }
+    std::ostringstream oss;
+    size_t len = 0;
+    oss << "nv>dataset names {";
+    len += 18;
+    for (size_t i = 0; i < layers.size(); i++) {
+        oss << "\"" << layers[i] << "\"";
+        len += 2 + layers[i].length();
+        if (i < layers.size() - 1) {
+            oss << " ";
+            len++;
+        }
+    }
+    oss << "}\n";
+    len += 2;
+#ifdef USE_THREADS
+    queueResponse(oss.str().c_str(), len, Response::VOLATILE);
+#else 
+    ssize_t bytesWritten = SocketWrite(oss.str().c_str(), len);
+
+    if (bytesWritten < 0) {
+        return TCL_ERROR;
+    }
+#endif /*USE_THREADS*/
+    return TCL_OK;
+}
+
+static int
 MapLayerVisibleOp(ClientData clientData, Tcl_Interp *interp, int objc, 
                   Tcl_Obj *const *objv)
@@ -753 +802 @@
     {"delete",  1, MapLayerDeleteOp,    3, 4, "?name?"},
     {"move",    1, MapLayerMoveOp,      5, 5, "pos name"},
+    {"names",   1, MapLayerNamesOp,     3, 4, "?type?"},
     {"opacity", 1, MapLayerOpacityOp,   5, 5, "opacity ?name?"},
     {"visible", 1, MapLayerVisibleOp,   5, 5, "bool ?name?"},