////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Tests whether the geometries of the two <code>Area</code> objects
* are equal.
* This method will return false if the argument is null.
* @param other the <code>Area</code> to be compared to this
* <code>Area</code>
* @return <code>true</code> if the two geometries are equal;
* <code>false</code> otherwise.
*/
public bool Equals(Area other)
{
// REMIND: A *much* simpler operation should be possible...
// Should be able to do a curve-wise comparison since all Areas
// should evaluate their curves in the same top-down order.
if (other == this)
{
return(true);
}
if (other == null)
{
return(false);
}
ArrayList c = new AreaOp.XorOp().Calculate(_curves, other._curves);
return(c.Count == 0);
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Sets the shape of this <code>Area</code> to be the combined area
* of its current shape and the shape of the specified <code>Area</code>,
* minus their intersection.
* The resulting shape of this <code>Area</code> will include
* only areas that were contained in either this <code>Area</code>
* or in the specified <code>Area</code>, but not in both.
* <pre>
* // Example:
* Area a1 = new Area([triangle 0,0 => 8,0 => 0,8]);
* Area a2 = new Area([triangle 0,0 => 8,0 => 8,8]);
* a1.exclusiveOr(a2);
*
* a1(before) xor a2 = a1(after)
*
* ################ ################
* ############## ############## ## ##
* ############ ############ #### ####
* ########## ########## ###### ######
* ######## ######## ################
* ###### ###### ###### ######
* #### #### #### ####
* ## ## ## ##
* </pre>
* @param rhs the <code>Area</code> to be exclusive ORed with this
* <code>Area</code>.
* @throws NullPointerException if <code>rhs</code> is null
*/
public void ExclusiveOr(Area rhs)
{
_curves = new AreaOp.XorOp().Calculate(_curves, rhs._curves);
InvalidateBounds();
}
////////////////////////////////////////////////////////////////////////////
//--------------------------------- REVISIONS ------------------------------
// Date Name Tracking # Description
// --------- ------------------- ------------- ----------------------
// 13JUN2009 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////
/**
* Tests whether the geometries of the two <code>Area</code> objects
* are equal.
* This method will return false if the argument is null.
* @param other the <code>Area</code> to be compared to this
* <code>Area</code>
* @return <code>true</code> if the two geometries are equal;
* <code>false</code> otherwise.
*/
public bool Equals(Area other)
{
// REMIND: A *much* simpler operation should be possible...
// Should be able to do a curve-wise comparison since all Areas
// should evaluate their curves in the same top-down order.
if (other == this)
{
return true;
}
if (other == null)
{
return false;
}
ArrayList c = new AreaOp.XorOp().Calculate(_curves, other._curves);
return c.Count == 0;
}
