add egg-crop

pandatool/src/eggprogs/Sources.pp

@@ -15,6 +15,14 @@
 
 #end bin_target
 
+#begin bin_target
+  #define TARGET egg-crop
+
+  #define SOURCES \
+    eggCrop.cxx eggCrop.h
+
+#end bin_target
+
 #begin bin_target
   #define TARGET egg-texture-cards
 

pandatool/src/eggprogs/eggCrop.cxx

@@ -0,0 +1,139 @@
+// Filename: eggCrop.cxx
+// Created by:  drose (10Jun02)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// [email protected] .
+//
+////////////////////////////////////////////////////////////////////
+
+#include "eggCrop.h"
+
+#include "eggGroupNode.h"
+#include "eggPrimitive.h"
+#include "eggVertex.h"
+#include "dcast.h"
+
+////////////////////////////////////////////////////////////////////
+//     Function: EggCrop::Constructor
+//       Access: Public
+//  Description:
+////////////////////////////////////////////////////////////////////
+EggCrop::
+EggCrop() {
+  set_program_description
+    ("egg-crop strips out all parts of an egg file that fall outside of an "
+     "arbitrary bounding volume, specified with a minimum and maximum point "
+     "in world coordinates.");
+
+  add_option
+    ("min", "x,y,z", 0,
+     "Specify the minimum point.",
+     &EggCrop::dispatch_double_triple, &_got_min, &_min[0]);
+
+  add_option
+    ("max", "x,y,z", 0,
+     "Specify the maximum point.",
+     &EggCrop::dispatch_double_triple, &_got_max, &_max[0]);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: EggCrop::post_command_line
+//       Access: Public, Virtual
+//  Description: This is called after the command line has been
+//               completely processed, and it gives the program a
+//               chance to do some last-minute processing and
+//               validation of the options and arguments.  It should
+//               return true if everything is fine, false if there is
+//               an error.
+////////////////////////////////////////////////////////////////////
+bool EggCrop::
+post_command_line() {
+  if (!_got_min || !_got_max) {
+    nout << "You must specify both a minimum and a maximum bounds.\n";
+    return false;
+  }
+    
+  return true;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: EggCrop::run
+//       Access: Public
+//  Description:
+////////////////////////////////////////////////////////////////////
+void EggCrop::
+run() {
+  int num_removed = strip_prims(&_data);
+  cerr << "Removed " << num_removed << " primitives.\n";
+
+  _data.remove_unused_vertices();
+  write_egg_file();
+}
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: EggCrop::strip_prims
+//       Access: Private
+//  Description: Recursively walks the scene graph, looking for
+//               primitives that exceed the specified bounding volume,
+//               and removes them.  Returns the number of primitives
+//               removed.
+////////////////////////////////////////////////////////////////////
+int EggCrop::
+strip_prims(EggGroupNode *group) {
+  int num_removed = 0;
+
+  EggGroupNode::iterator ci;
+  ci = group->begin();
+  while (ci != group->end()) {
+    EggNode *child = (*ci);
+    bool all_in = true;
+
+    if (child->is_of_type(EggPrimitive::get_class_type())) {
+      EggPrimitive *prim = DCAST(EggPrimitive, child);
+      EggPrimitive::iterator vi;
+      for (vi = prim->begin(); vi != prim->end() && all_in; ++vi) {
+        EggVertex *vert = (*vi);
+        LPoint3d pos = vert->get_pos3();
+
+        all_in = (pos[0] >= _min[0] && pos[0] <= _max[0] &&
+                  pos[1] >= _min[1] && pos[1] <= _max[1] &&
+                  pos[2] >= _min[2] && pos[2] <= _max[2]);
+          
+      }
+    }
+
+    if (!all_in) {
+      // Reject this primitive.
+      ci = group->erase(ci);
+      num_removed++;
+    } else {
+      // Keep this primitive.
+      if (child->is_of_type(EggGroupNode::get_class_type())) {
+        EggGroupNode *group_child = DCAST(EggGroupNode, child);
+        num_removed += strip_prims(group_child);
+      }
+      ++ci;
+    }
+  }
+
+  return num_removed;
+}
+
+
+int main(int argc, char *argv[]) {
+  EggCrop prog;
+  prog.parse_command_line(argc, argv);
+  prog.run();
+  return 0;
+}

pandatool/src/eggprogs/eggCrop.h

@@ -0,0 +1,49 @@
+// Filename: eggCrop.h
+// Created by:  drose (10Jun02)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// [email protected] .
+//
+////////////////////////////////////////////////////////////////////
+
+#ifndef EGGCROP_H
+#define EGGCROP_H
+
+#include "pandatoolbase.h"
+
+#include "eggFilter.h"
+
+class EggGroupNode;
+
+////////////////////////////////////////////////////////////////////
+//       Class : EggCrop
+// Description : A program to read an egg file and write an equivalent
+//               egg file, possibly performing some minor operations
+//               along the way.
+////////////////////////////////////////////////////////////////////
+class EggCrop : public EggFilter {
+public:
+  EggCrop();
+
+  virtual bool post_command_line();
+  void run();
+
+private:
+  int strip_prims(EggGroupNode *group);
+
+  bool _got_min, _got_max;
+  LVecBase3d _min, _max;
+};
+
+#endif
+

pandatool/src/eggprogs/eggTrans.h

@@ -19,9 +19,9 @@
 #ifndef EGGTRANS_H
 #define EGGTRANS_H
 
-#include <pandatoolbase.h>
+#include "pandatoolbase.h"
 
-#include <eggFilter.h>
+#include "eggFilter.h"
 
 ////////////////////////////////////////////////////////////////////
 //       Class : EggTrans