Package org.gvsig.symbology.fmap.mapcontext.rendering.symbol.impl

Class CartographicSupportToolkit

java.lang.Object

org.gvsig.symbology.fmap.mapcontext.rendering.symbol.impl.CartographicSupportToolkit

public class CartographicSupportToolkit
extends Object

Author:

jaume dominguez faus - jaume.dominguez@iver.es

Field Summary

Fields

Modifier and Type	Field	Description
static int	DefaultMeasureUnit	The unit that will be used when creating new symbols. Factory defaults to pixel.
static int	DefaultReferenceSystem	The reference system that will be used when creating new symbols. Factory defaults to pixel.

Constructor Summary

Constructors

Constructor	Description
CartographicSupportToolkit()

Method Summary

Modifier and Type	Method	Description
static CartographicSupport.CartographicContext	createCartographicContext(ViewPort viewPort, double dpi, org.gvsig.fmap.geom.Geometry geom)
static double	getCartographicLength(CartographicSupport cartographicElement, double length, double dist1Pixel, int mapUnits, 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).
static double	getCartographicLength(CartographicSupport cartographicElement, double length, CartographicSupport.CartographicContext ctx)
static double	getCartographicLength(CartographicSupport cartographicElement, double length, ViewPort viewPort, double dpi)
static double	getScreenDpi()
static void	setScreenDpi(double dpi)

Methods inherited from class java.lang.Object

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

Field Details

DefaultMeasureUnit

public static int DefaultMeasureUnit

The unit that will be used when creating new symbols.
Factory defaults to pixel.

DefaultReferenceSystem

public static int DefaultReferenceSystem

The reference system that will be used when creating new symbols.
Factory defaults to pixel.

Constructor Details

CartographicSupportToolkit

public CartographicSupportToolkit()

Method Details

createCartographicContext

public static CartographicSupport.CartographicContext createCartographicContext(ViewPort viewPort,
 double dpi,
 org.gvsig.fmap.geom.Geometry geom)

getCartographicLength

public static double getCartographicLength(CartographicSupport cartographicElement,
 double length,
 double dist1Pixel,
 int mapUnits,
 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

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

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

Returns:

The distance in pixels corresponding to the provided length

getCartographicLength

public static double getCartographicLength(CartographicSupport cartographicElement,
 double length,
 ViewPort viewPort,
 double dpi)

getCartographicLength

public static double getCartographicLength(CartographicSupport cartographicElement,
 double length,
 CartographicSupport.CartographicContext ctx)

setScreenDpi

public static void setScreenDpi(double dpi)

getScreenDpi

public static double getScreenDpi()