com.luciad.view.lightspeed.style

LuciadLightspeedClass TLspScaleBasedStylerBuilder

java.lang.Object

com.luciad.view.lightspeed.style.TLspScaleBasedStylerBuilder

public final class TLspScaleBasedStylerBuilder
extends java.lang.Object

Builder to create a styler that supports Level-of-Detail styling. Delegate ILspStylers configured via this builder are used for the styling at the defined map scale intervals. For intervals that have no styles defined, nothing will be painted.

Overlapping scale ranges

It is allowed to specify overlapping scale ranges. For example

   TLspScaleBasedStylerBuilder builder = TLspScaleBasedStylerBuilder.newBuilder();
   ALspStyler scaleBasedStyle =
     builder.addContent( 1e-5, 1e-7, iconStyle1 )
            .addContent( FULLY_ZOOMED_OUT, FULLY_ZOOMED_IN, iconStyle2 )
            .build();
 

defines overlapping styles for the interval [1e-5, 1e-7[. In that interval, both the iconStyle1 and iconStyle2 are used to style the objects on the map.

Example

  ALspStyle iconStyle1 = TLspIconStyle.newBuilder()
                                      .icon(new TLcdSymbol(TLcdSymbol.FILLED_CIRCLE, 20, Color.RED))
                                      .build();
  ALspStyle iconStyle2 = TLspIconStyle.newBuilder()
                                      .icon(new TLcdSymbol(TLcdSymbol.FILLED_TRIANGLE, 20, Color.GREEN))
                                      .build();

  ALspStyler scaleBasedStyle = TLspScaleBasedStylerBuilder.newBuilder()
                                                          .styles(FULLY_ZOOMED_OUT, 1e-7, iconStyle1)
                                                          .styles(1e-7, FULLY_ZOOMED_IN, iconStyle2)
                                                          .build();
 

Note: The scale dependent styler created with this builder, has no influence on which data is loaded by a layer. To filter objects in a layer TLcdModelQueryConfiguration must be used, which can be configured on the layer via TLspLayer.setModelQueryConfiguration(com.luciad.view.TLcdModelQueryConfiguration).

Since:

2017.1

Field Summary

Fields

Modifier and Type	Field and Description
static double	FULLY_ZOOMED_IN Scale value corresponding to a view which is completely zoomed in (= a scale of Double.MAX_VALUE).
static double	FULLY_ZOOMED_OUT Scale value corresponding to a view which is completely zoomed out (= a scale of 0.0)

Method Summary

Modifier and Type	Method and Description
ALspStyler	build() Returns a new ALspStyler instance.
static TLspScaleBasedStylerBuilder	newBuilder() Create a new builder instance
TLspScaleBasedStylerBuilder	styler(double aMinScale, double aMaxScale, ALspStyler aStyler) Adds a styler for the specified scale range.
TLspScaleBasedStylerBuilder	styles(double aMinScale, double aMaxScale, ALspStyle... aStyles) Adds styles for the specified scale range.

Methods inherited from class java.lang.Object

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

Field Detail

FULLY_ZOOMED_IN

public static final double FULLY_ZOOMED_IN

Scale value corresponding to a view which is completely zoomed in (= a scale of Double.MAX_VALUE).

See Also:

Constant Field Values

FULLY_ZOOMED_OUT

public static final double FULLY_ZOOMED_OUT

Scale value corresponding to a view which is completely zoomed out (= a scale of 0.0)

See Also:

Constant Field Values

Method Detail

newBuilder

public static TLspScaleBasedStylerBuilder newBuilder()

Create a new builder instance

Returns:

a new builder instance

styles

public TLspScaleBasedStylerBuilder styles(double aMinScale,
                                          double aMaxScale,
                                          ALspStyle... aStyles)

Adds styles for the specified scale range. Scale ranges are allowed to overlap with previously specified scale ranges. If the current scale of the view is within multiple scale ranges, all associated styles will be applied. The order in which the scale ranges and their associated styles are defined has no effect. Consult the class javadoc of TLspScaleBasedStylerBuilder for more information on how overlapping scale ranges are interpreted.

The scales are expressed as a unitless scale. For example specifying a scale of "1/5000" means that one centimetre on the map equals 5000 centimetres in reality. Valid scale values go from FULLY_ZOOMED_OUT (=0.0) to FULLY_ZOOMED_IN (=Double.MAX_VALUE).

Note: To filter objects and minimize data loading in a layer TLcdModelQueryConfiguration should be used.

Parameters:

aMinScale - The minimum scale (inclusive).

aMaxScale - The maximum scale (exclusive).

aStyles - the styles to be used for the defined scale interval.

Returns:

this builder

styler

public TLspScaleBasedStylerBuilder styler(double aMinScale,
                                          double aMaxScale,
                                          ALspStyler aStyler)

Adds a styler for the specified scale range. Scale ranges are allowed to overlap with previously specified scale ranges. If the current scale of the view is within multiple scale ranges, all associated stylers will be applied. The order in which the scale ranges and their associated stylers are defined has no effect. Consult the class javadoc of TLspScaleBasedStylerBuilder for more information on how overlapping scale ranges are interpreted.

The scales are expressed as a unitless scale. For example specifying a scale of "1/5000" means that one centimetre on the map equals 5000 centimetres in reality. Valid scale values go from FULLY_ZOOMED_OUT (=0.0) to FULLY_ZOOMED_IN (=Double.MAX_VALUE).

Note: To filter objects and minimize data loading in a layer TLcdModelQueryConfiguration should be used.

Parameters:

aMinScale - The minimum scale (inclusive).

aMaxScale - The maximum scale (exclusive).

aStyler - the styler to be used for the defined scale interval.

Returns:

this builder

build

public ALspStyler build()

Returns a new ALspStyler instance.

Returns:

a new ALspStyler.