+ else if ( type == "backsurface" ) {
+ // backface color can be defined in several ways
+ // - in old versions, it is set as rgb triple r:g:b - this was is unsupported now
+ // - in latest versions, it is set as delta coefficient
+ bool rgbOk = false, deltaOk;
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ int delta = colors[i+1].toInt( &deltaOk );
+ i++; // shift index
+ if ( i+1 < colors.count() ) // index is shifted to 1
+ g = colors[i+1].toDouble( &rgbOk );
+ if ( rgbOk ) i++; // shift index
+ if ( rgbOk && i+1 < colors.count() ) // index is shifted to 2
+ b = colors[i+1].toDouble( &rgbOk );
+ if ( rgbOk ) i++;
+ // - as currently there's no way to set directly backsurface color as it was before,
+ // we ignore old dump where r,g,b triple was set
+ // - also we check that delta parameter is set properly
+ if ( !rgbOk && deltaOk )
+ deltaF = delta;
+ }
+ else if ( type == "volume" ) {
+ // volume color is set by 4 values r:g:b:delta, where
+ // - r,g,b - is a normal volume rgb color components
+ // - delta - is a reversed volume color delta coefficient
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+2 >= colors.count() ) break; // format error
+ g = colors[i+2].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+3 >= colors.count() ) break; // format error
+ b = colors[i+3].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+4 >= colors.count() ) break; // format error
+ int delta = colors[i+4].toInt( &bOk );
+ if ( !bOk ) break; // format error
+ volumeColor.setRgbF( r, g, b );
+ deltaV = delta;
+ i += 4;
+ }
+ else if ( type == "edge" ) {
+ // edge color is set by 3 values r:g:b, where
+ // - r,g,b - is rgb color components
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+2 >= colors.count() ) break; // format error
+ g = colors[i+2].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+3 >= colors.count() ) break; // format error
+ b = colors[i+3].toDouble( &bOk ); if ( !bOk ) break; // format error
+ edgeColor.setRgbF( r, g, b );
+ i += 3;
+ }
+ else if ( type == "node" ) {
+ // node color is set by 3 values r:g:b, where
+ // - r,g,b - is rgb color components
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+2 >= colors.count() ) break; // format error
+ g = colors[i+2].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+3 >= colors.count() ) break; // format error
+ b = colors[i+3].toDouble( &bOk ); if ( !bOk ) break; // format error
+ nodeColor.setRgbF( r, g, b );
+ i += 3;
+ }
+ else if ( type == "elem0d" ) {
+ // 0d element color is set by 3 values r:g:b, where
+ // - r,g,b - is rgb color components
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+2 >= colors.count() ) break; // format error
+ g = colors[i+2].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+3 >= colors.count() ) break; // format error
+ b = colors[i+3].toDouble( &bOk ); if ( !bOk ) break; // format error
+ elem0dColor.setRgbF( r, g, b );
+ i += 3;
+ }
+ else if ( type == "ball" ) {
+ // ball color is set by 3 values r:g:b, where
+ // - r,g,b - is rgb color components
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+2 >= colors.count() ) break; // format error
+ g = colors[i+2].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+3 >= colors.count() ) break; // format error
+ b = colors[i+3].toDouble( &bOk ); if ( !bOk ) break; // format error
+ ballColor.setRgbF( r, g, b );
+ i += 3;
+ }
+ else if ( type == "outline" ) {
+ // outline color is set by 3 values r:g:b, where
+ // - r,g,b - is rgb color components
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+2 >= colors.count() ) break; // format error
+ g = colors[i+2].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+3 >= colors.count() ) break; // format error
+ b = colors[i+3].toDouble( &bOk ); if ( !bOk ) break; // format error
+ outlineColor.setRgbF( r, g, b );
+ i += 3;
+ }
+ else if ( type == "orientation" ) {
+ // orientation color is set by 3 values r:g:b, where
+ // - r,g,b - is rgb color components
+ if ( i+1 >= colors.count() ) break; // format error
+ r = colors[i+1].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+2 >= colors.count() ) break; // format error
+ g = colors[i+2].toDouble( &bOk ); if ( !bOk ) break; // format error
+ if ( i+3 >= colors.count() ) break; // format error
+ b = colors[i+3].toDouble( &bOk ); if ( !bOk ) break; // format error
+ orientationColor.setRgbF( r, g, b );
+ i += 3;