text

Web3D/VR

[] readme course preface 1 2 3 4 5 6 7 reference examples resources

proto


  
  PROTO TextElement [
      exposedField SFString elementType "TEXTELEMENT"
  
      exposedField SFInt32  startLevel -1
      exposedField SFInt32  endLevel   -1
  
      exposedField SFFloat  width       1
      exposedField SFFloat  height      1
      exposedField SFBool   linebreak   FALSE
      
      exposedField SFBool     absolute    FALSE
      exposedField SFBool    nochange    FALSE
  
      exposedField MFString string      []  
  
      exposedField SFVec3f  position    0 0 0 
      exposedField SFColor  color       1 1 1
      exposedField SFFloat  alpha       0
      exposedField SFColor  bgColor        0 0 1
      exposedField SFFloat  bgTransparency 1
  
      exposedField SFVec3f    location    0 0 0
      exposedField SFRotation rotation    0 1 0 0
      exposedField SFVec3f    scale       1 1 1
  
      exposedField MFString justify     [ "BEGIN" ]
      exposedField MFString family      [ "SERIF" ]
      exposedField SFString style       "PLAIN"
  
      exposedField SFString href        ""
      exposedField MFString parameters  []
  ] {

body


      DEF TRANSFORMXX Transform {
          translation IS position
      children [
      DEF TRANSFORM Transform {
          translation IS location
          rotation IS rotation
          scale IS scale 
          children [
              DEF BOXTRANSFORM Transform {
                  translation 0 0 -0.015
              }
              Shape {
                  appearance Appearance {
                      material Material {
                          diffuseColor 0 0 0
                          specularColor 0 0 0
                          emissiveColor IS color
                          transparency IS alpha
                      }
                  }
                  geometry DEF TEXT Text {
                      string IS string
                      fontStyle FontStyle {
                          size    IS height
                          family  IS family
                          style   IS style
                          justify [ "BEGIN" ]
                          topToBottom TRUE
                          leftToRight TRUE
                      }
                  }
              }
          ]
      } ] }

script


      DEF SCRIPT Script {
          mustEvaluate TRUE
          directOutput TRUE
          field    SFNode   boxTransform   USE BOXTRANSFORM
          field    SFNode   transform      USE TRANSFORM
          field    SFNode   me             USE SCRIPT
  
          field    MFString family         IS  family
          field    SFFloat  size           IS  height
          eventIn  MFString set_string     IS  string
          field    MFString string         IS  string
          field    MFString justify        IS  justify
          field    SFFloat  length         IS  width
          eventOut SFFloat  length_changed IS  width
  
          field SFColor    bgColor        IS bgColor     
          field SFFloat    bgTransparency IS bgTransparency
  
          field SFString   href IS href                    
          field MFString   parameters IS parameters
          eventIn SFTime touched

functions


          url "vrmlscript:
              function initialize() {
                  // guess length...
                  var factor = 1;
                  if(family[0]=='TYPEWRITER') {
                      factor = 0.6;
                  } else if(family[0]=='SANS') {
                      factor = 0.5;
                  } else if(family[0]=='SERIF') {
                      factor = 0.38;
                  }
                  length         = string[0].length * factor * size;
                  length_changed = length;
  
                  // Setup backgroundBox to be size widthXheight
                  boxTransform.translation = new SFVec3f(length/2,size/2,-0.015);
                  var bgBox = Browser.createVrmlFromString('  Shape { appearance Appearance { material Material { diffuseColor  0 0 0 specularColor 0 0 0 emissiveColor ' + bgColor + ' transparency ' +  bgTransparency + ' } } geometry Box { size ' + length + ' ' + size + ' 0.01 } } ');
                  boxTransform.children = bgBox;
  
                  if(href != '') {
                   var touch = Browser.createVrmlFromString(' TouchSensor{} ');
                   transform.addChildren = touch;
                   Browser.addRoute(touch[0],'touchTime',me,'touched');
                  }
              }
              function set_string(v,t) {
                  string = v;
                  initialize();
              }
              function touched(v,t) {
                  Browser.loadURLrel(href,parameter);
                  // Change, this for absolute URLs
                  // Browser.loadURL(href,parameter);
  
              }
          "
      }
  }

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