Class IlcRCTextureTargetI

IlcRCTextureTargetI is the implementation class for the target start time individual texture curve. This individual curve represents the individual demand of the associated resource constraint for its resource based on the assumption that it will start at an externally defined target start time. The points used in the texture curve can be seen in the example code below.

For more information, see Texture Measurements.

This protected constructor creates an instance of IlcRCTextureTargetI for resource constraint rc and the resource texture resTexture. The created class represents the individual contribution of rc to the aggregate curve of resTexture. As this constructor is protected, it should only be called from subclasses of IlcRCTextureTargetI or from the IlcRCTextureTargetFactoryI friend class.

This virtual, protected function updates all the data points on which the curve is calculated.

Example

Here is an example of how the updateDataPoints() method might be written.

 IlcBool IlcRCTextureTargetI::updateDataPoints() {
   IlcResourceConstraint rc = getResourceConstraint();
   IlcFloat newAltWeight = calcAltWeight();
   IlcInt dur, cap;
   IlcFloat startMin = getStartTime();

   IlcAltResConstraint altRct = rc.getAlternative();
   if (0 != altRct.getImpl()) {
     IlcResource res = rc.getResource();
     dur = altRct.getDurationMax(res);
     cap = altRct.getCapacityMax(res);
   }

   else {
     IlcActivity act = rc.getActivity();
     dur = act.getDurationMax();
     cap = (rc.isVariableResourceConstraint() ?
 	   rc.getCapacityVariable().getMax() :
 	   rc.getCapacity());
   }

   IlcBool changed = IlcFalse;
   if ((getStartMin() != startMin) ||
       (getDuration() != dur) ||
       (getCapacity() != cap) ||
       (getAltWeight() != newAltWeight)) {
     changed = IlcTrue;

     setStart(startMin);
     setDuration(dur);
     setEnd(startMin + dur);
     setCapacity(cap);
     setAltWeight(newAltWeight);
   }

   return changed;
 }