com.luciad.util

LuciadLightspeedClass TLcdHaloAlgorithm

java.lang.Object

com.luciad.util.TLcdHaloAlgorithm

All Implemented Interfaces:

Serializable

public final class TLcdHaloAlgorithm
extends Object
implements Serializable

Type safe enumeration representing the algorithms that are available for rendering halo's around a shape.

The choice of the halo algorithm may have a major impact on the performance of the halo rendering. The following general rules apply when choosing an appropriate halo algorithm:

• Convolution performs better than shifting for large halo thicknesses.
• Convolution performs better than shifting for shapes which are expensive to render.
• Shifting performs better for shapes with large dimensions.

Note that convolution supports translucent halo colors, whereas shifting does not.

Since:

8.4

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static TLcdHaloAlgorithm	CONVOLUTION This algorithm uses a convolutional filter to create halo's.
static TLcdHaloAlgorithm	SHIFTING This algorithm creates halo's by rendering the shapes to be haloed multiple times, each time shifted with a different offset around the actual position.

Method Summary

Modifier and Type	Method and Description
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CONVOLUTION

public static final TLcdHaloAlgorithm CONVOLUTION

This algorithm uses a convolutional filter to create halo's.

SHIFTING

public static final TLcdHaloAlgorithm SHIFTING

This algorithm creates halo's by rendering the shapes to be haloed multiple times, each time shifted with a different offset around the actual position.

Method Detail

toString

public String toString()

Overrides:

toString in class Object