org.gvsig.labeling.symbol

Class SymbolUtils

java.lang.Object

org.gvsig.labeling.symbol.SymbolUtils

public class SymbolUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
SymbolUtils()

Method Summary

Modifier and Type

Method and Description

static double

getCartographicLength(org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport cartographicElement, double length, org.gvsig.fmap.mapcontext.ViewPort viewPort, double dpi) Calculates the distance in pixels corresponding to the provided length, according to the current rendering context (output dpi, map scale, map units) and the symbol cartographic settings (unit, size, and unit reference system).

Methods inherited from class java.lang.Object

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

Constructor Detail

SymbolUtils

public SymbolUtils()

Method Detail

getCartographicLength

public static double getCartographicLength(org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport cartographicElement,
                                           double length,
                                           org.gvsig.fmap.mapcontext.ViewPort viewPort,
                                           double dpi)

Calculates the distance in pixels corresponding to the provided length, according to the current rendering context (output dpi, map scale, map units) and the symbol cartographic settings (unit, size, and unit reference system).

Parameters:

cartographicElement - CartographicSupport object which contains the reference system and the measuring units for the provided length

length - The length to be computed in pixels. The length is supposed to be provided in the units defined in the cartographicElement

viewPort - The viewport, which defines the relationship between pixels and maps units

dpi - The resolution (dots per inch) of the target display device (printer, screen, etc)

Returns:

The distance in pixels corresponding to the provided length