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# collectViewpoints.awk
# A simple script to collect the parameters of all Viewpoints
# to a VRML file with a Transform animation of all Viewpoints.
# This script do not support the collections of Viewpoints which
# are moved/rotated/scaled etc. by Transform nodes.
# Important: You need to load and store to a different file with the program
# white_dune before use, this script depends on white_dune layout
# example usage:
# awk -f collectViewpoints.awk inputfile.wrl > outputfile.wrl
# Copyright (C) 2003 J. "MUFTI" Scheurich
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program (see the file "COPYING" for details); if
# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
# Cambridge, MA 02139, USA.
BEGIN {
posIndex = 0;
orientIndex = 0;
viewPointIndex = 0;
routeIndex = 0;
lineIndex = 0;
}
/Viewpoint/ {
viewPointFlag = 1;
viewPointIndex++;
}
/}/ {
if (viewPointFlag == 1)
{
viewPointFlag = 0;
if (orientIndex < viewPointIndex)
{
orientList[orientIndex,0]=0;
orientList[orientIndex,1]=0;
orientList[orientIndex,2]=1;
orientList[orientIndex,3]=0;
orientIndex++;
}
if (posIndex < viewPointIndex)
{
posList[posIndex,0]=0;
posList[posIndex,1]=0;
posList[posIndex,2]=-10;
posIndex++;
}
}
}
/orientation/ {
if (viewPointFlag)
{
orientList[orientIndex,0]=$2;
orientList[orientIndex,1]=$3;
orientList[orientIndex,2]=$4;
orientList[orientIndex,3]=-$5;
orientIndex++;
}
}
/position/ {
if (viewPointFlag)
{
posList[posIndex,0]=-$2;
posList[posIndex,1]=-$3;
posList[posIndex,2]=-$4;
posIndex++;
}
}
/^/ {
if ($1 == "ROUTE")
route[routeIndex++] = $0;
else
line[lineIndex++] = $0;
}
END {
print("#VRML V2.0 utf8");
print("Viewpoint");
print(" {");
print(" position 0 0 0");
print(" }");
print("DEF POS PositionInterpolator");
print(" {");
print(" key");
print(" [");
for (i=0;i<posIndex;i++)
print(" " i/(posIndex-1));
print(" ]");
print(" keyValue");
print(" [");
for (i=0;i<posIndex;i++)
printf(" %f %f %f\n",
posList[i,0],posList[i,1],posList[i,2]);
print(" ]");
print(" }");
print("DEF ORIENT OrientationInterpolator");
print(" {");
print(" key");
print(" [");
for (i=0;i<orientIndex;i++)
print(" " i/(orientIndex-1));
print(" ]");
print(" keyValue");
print(" [");
for (i=0;i<orientIndex;i++)
printf(" %f %f %f %f\n",
orientList[i,0],orientList[i,1],orientList[i,2],
orientList[i,3]);
print(" ]");
print(" }");
print("DEF TIME TimeSensor");
print(" {");
print(" loop TRUE");
print(" cycleInterval 10");
print(" }");
print("DEF TRANSFORM1 Transform");
print(" {");
print(" children DEF TRANSFORM2 Transform");
print(" {");
print(" children");
print(" [");
for (i=0;i<lineIndex;i++)
print(" " line[i]);
print(" ]");
print(" }");
print(" }");
for (i=0;i<routeIndex;i++)
print(route[i]);
print("ROUTE TIME.fraction_changed TO ORIENT.set_fraction");
print("ROUTE ORIENT.value_changed TO TRANSFORM1.rotation");
print("ROUTE TIME.fraction_changed TO POS.set_fraction");
print("ROUTE POS.value_changed TO TRANSFORM2.translation");
}
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