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web3d-example-clock-proto.vr

web3d-example-clock-proto.vr (wrl ) [ flux / bitmanagement / cortona / octaga ]

Web3D/VR

EXTERNPROTO MetaData [ exposedField MFString instructions exposedField MFString name exposedField MFString description exposedField MFString interface ] "@vr-web3d-example-metadata-proto.wrl" MetaData { name ["ClockMechanism"] description [ "simulates a clock motor--" "generates rotation values for clock hands." ] interface [ "EXTERNPROTO ClockMechanism [" " eventIn SFInt32 set_hour" " eventIn SFInt32 set_minute" " eventIn SFInt32 set_second" " field SFBool autoClock " " field SFInt32 hour" " field SFInt32 minute" " field SFInt32 second" " field SFVec3f hourHandAxis" " field SFVec3f minuteHandAxis" " field SFVec3f secondHandAxis" " field SFBool twentyFourHours" " eventOut SFInt32 hour_changed" " eventOut SFInt32 minute_changed" " eventOut SFInt32 second_changed" " eventOut SFRotation hourHand_changed" " eventOut SFRotation minuteHand_changed" " eventOut SFRotation secondHand_changed" "]\"@vr-example-clock-proto.wrl\"" ] } <h4>

#</h4>

PROTO ClockMechanism [ eventIn SFInt32 set_hour eventIn SFInt32 set_minute eventIn SFInt32 set_second field SFBool autoClock TRUE field SFInt32 hour 12 field SFInt32 minute 0 field SFInt32 second 0 field SFVec3f hourHandAxis 0 0 1 field SFVec3f minuteHandAxis 0 0 1 field SFVec3f secondHandAxis 0 0 1 field SFBool twentyFourHours FALSE eventOut SFInt32 hour_changed eventOut SFInt32 minute_changed eventOut SFInt32 second_changed eventOut SFRotation hourHand_changed eventOut SFRotation minuteHand_changed eventOut SFRotation secondHand_changed ] { Group { children [ DEF TS TimeSensor { loop TRUE } DEF SCRIPT Script { eventIn SFInt32 set_hour IS set_hour eventIn SFInt32 set_minute IS set_minute eventIn SFInt32 set_second IS set_second eventIn SFTime set_time field SFInt32 hr IS hour field SFInt32 min IS minute field SFInt32 sec IS second field SFVec3f hrAx IS hourHandAxis field SFVec3f minAx IS minuteHandAxis field SFVec3f secAx IS secondHandAxis field SFBool do24 IS twentyFourHours field SFBool auto IS autoClock field SFBool first TRUE eventOut SFRotation hourHand_changed IS hourHand_changed eventOut SFRotation minuteHand_changed IS minuteHand_changed eventOut SFRotation secondHand_changed IS secondHand_changed url["javascript: // private: function autoSetTime() { currentDate = new Date(); hr = currentDate.getHours(); min = currentDate.getMinutes(); sec = currentDate.getSeconds(); } function time2Rot() { // set some constants PIPI = Math.PI * 2; numHrs = 12; if(do24) { numHrs = 24; } // find radians (what portion of a full circle-- x * 2PI; x: 0 -> 1) secRad = (sec / 60) * PIPI; minRad = (min / 60) * PIPI; hrRad = (hr / numHrs) * PIPI; // adjust minute and hour hands for smooth interpolation minRad += secRad / 60; hrRad += minRad / numHrs; // create the new rotations secondHand_changed = new SFRotation(secAx, -secRad); minuteHand_changed = new SFRotation(minAx, -minRad); hourHand_changed = new SFRotation(hrAx, -hrRad); } function initialize() { if(auto) { autoSetTime(); } } // public: function set_time(tickTock) { if(first || TRUE) { first = FALSE; // get time from computer, if autoClock is on if(auto) { autoSetTime(); } // or keep our own time else { sec ++; if(sec > 59) { sec = 0; min++; } if(min > 59) { min = 0; hr++; } if(do24) { if(hr > 23) { hr = 0; } } else { if(hr > 11) { hr = 0; } } } time2Rot(); hour_changed = hr; minute_changed = min; second_changed = sec; } else { first = TRUE; } } function set_hour(h) { hr = h; } function set_minute(m) { min = m; } function set_second(s) { sec = s; } "] } ] } ROUTE TS.cycleTime TO SCRIPT.set_time }

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(C) A. Eliëns 21/5/2007

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