edu.mit.sketch.ddg
Class AspectRatioConstraint

java.lang.Object
  edu.mit.sketch.ddg.Constraint
      edu.mit.sketch.ddg.PropertyConstraint
          edu.mit.sketch.ddg.AspectRatioConstraint

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class AspectRatioConstraint
extends PropertyConstraint
implements java.io.Serializable

This class represents aspect ratio properties of ellipses and groups. (like "elongated"). If the property holds, the primitive will have a self loop in the constraint graph - the constraint holds between the primitive and itself.

AspectRatioConstraint.java Created: Sat Nov 21 18:26:00 2001

Author:

Olya Veselova

See Also:

Serialized Form

Field Summary

static int	ELONGATED
static int	NON_ELONGATED
static int	NUM_CONSTRAINTS Total number of possible constraints (to allow iterating over the names).
static int	VERY_ELONGATED

Constructor Summary

AspectRatioConstraint()
Constructs an empty constraint graph and initializes the name to "unknown".

AspectRatioConstraint(int name)
Constructs an empty constraint graph with a given name

Method Summary

void	addConstraints(java.util.HashMap primToGeomParts) Infer the constraints for individual primitives from the user's stroke geometric parts and record add them to the constraint graph.
void	addConstraints(java.util.HashMap primToGeomParts, GroupingTree group, ConnectsConstraint connects, IntersectsConstraint intersects) Infer the constraints for groups from the user's stroke geometric parts and record add them to the constraint graph.
java.lang.Object	clone() Clone the constraint
static double	constraintConfidence(DrawnObject object, int name) Returns the confidence that a given (by the name) constraint holds for a drawn object consisting of a group of primitives
static double	constraintConfidence(Ellipse e, int name) Returns the confidence that a given (by the name) constraint holds for an ellipse
java.lang.String	name() Name of the constraint type.
boolean	orientationInvariant() Returns true if the constraint is orinetation invariant

Methods inherited from class edu.mit.sketch.ddg.Constraint

constraintGraph, labelledEdgeList, mergeIn, print, removeLowConfidence, removeLowRelevance, renamePrimitives, sameAs, setConstraintGraph, subgraph

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ELONGATED

public static final int ELONGATED

See Also:

Constant Field Values

VERY_ELONGATED

public static final int VERY_ELONGATED

See Also:

Constant Field Values

NON_ELONGATED

public static final int NON_ELONGATED

See Also:

Constant Field Values

NUM_CONSTRAINTS

public static final int NUM_CONSTRAINTS

Total number of possible constraints (to allow iterating over the names). Assign the numbers to the constraint names in order starting from 0 and without gaps.

See Also:

Constant Field Values

Constructor Detail

AspectRatioConstraint

public AspectRatioConstraint()

Constructs an empty constraint graph and initializes the name to "unknown".

AspectRatioConstraint

public AspectRatioConstraint(int name)

Constructs an empty constraint graph with a given name

Method Detail

orientationInvariant

public boolean orientationInvariant()

Returns true if the constraint is orinetation invariant

Specified by:

orientationInvariant in class PropertyConstraint

addConstraints

public void addConstraints(java.util.HashMap primToGeomParts)

Infer the constraints for individual primitives from the user's stroke geometric parts and record add them to the constraint graph. HashMap: type of key: Primitive, type of value: GeometricObject

addConstraints

public void addConstraints(java.util.HashMap primToGeomParts,
                           GroupingTree group,
                           ConnectsConstraint connects,
                           IntersectsConstraint intersects)

Infer the constraints for groups from the user's stroke geometric parts and record add them to the constraint graph. HashMap: type of key: Primitive, type of value: GeometricObject Look for elongation only on groups that are closed contours

constraintConfidence

public static double constraintConfidence(Ellipse e,
                                          int name)

Returns the confidence that a given (by the name) constraint holds for an ellipse

constraintConfidence

public static double constraintConfidence(DrawnObject object,
                                          int name)

Returns the confidence that a given (by the name) constraint holds for a drawn object consisting of a group of primitives

name

public java.lang.String name()

Name of the constraint type.

Specified by:

name in class PropertyConstraint

clone

public java.lang.Object clone()

Clone the constraint

Specified by:

clone in class PropertyConstraint