org.mapfish.print.processor.map.scalebar

Class ScalebarGraphic

java.lang.Object

org.mapfish.print.processor.map.scalebar.ScalebarGraphic

public class ScalebarGraphic
extends java.lang.Object

Creates a scalebar graphic.

Constructor Summary

Constructors

Constructor and Description
ScalebarGraphic()

Method Summary

Modifier and Type	Method and Description
protected static java.lang.String	createLabelText(DistanceUnit scaleUnit, double value, DistanceUnit intervalUnit) Format the label text.
protected static int	getBarSize(ScaleBarRenderSettings settings) Get the bar size.
protected static int	getLabelDistance(ScaleBarRenderSettings settings) Get the label distance..
protected static java.awt.Dimension	getMaxLabelSize(ScaleBarRenderSettings settings) Get the maximum width and height of the labels.
protected static double	getNearestNiceValue(double value, DistanceUnit scaleUnit, boolean lockUnits) Reduce the given value to the nearest smaller 1 significant digit number starting with 1, 2 or 5.
protected static java.awt.Dimension	getSize(ScalebarAttribute.ScalebarAttributeValues scalebarParams, ScaleBarRenderSettings settings, java.awt.Dimension maxLabelSize) Get the size of the painting area required to draw the scalebar with labels.
java.net.URI	render(MapfishMapContext mapContext, ScalebarAttribute.ScalebarAttributeValues scalebarParams, java.io.File tempFolder, Template template) Render the scalebar.

Methods inherited from class java.lang.Object

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

Constructor Detail

ScalebarGraphic

public ScalebarGraphic()

Method Detail

render

public final java.net.URI render(MapfishMapContext mapContext,
                                 ScalebarAttribute.ScalebarAttributeValues scalebarParams,
                                 java.io.File tempFolder,
                                 Template template)
                          throws java.io.IOException,
                                 javax.xml.parsers.ParserConfigurationException

Render the scalebar.

Parameters:

mapContext - The context of the map for which the scalebar is created.

scalebarParams - The scalebar parameters.

tempFolder - The directory in which the graphic file is created.

template - The template that containts the scalebar processor

Throws:

java.io.IOException

javax.xml.parsers.ParserConfigurationException

getSize

protected static java.awt.Dimension getSize(ScalebarAttribute.ScalebarAttributeValues scalebarParams,
                                            ScaleBarRenderSettings settings,
                                            java.awt.Dimension maxLabelSize)

Get the size of the painting area required to draw the scalebar with labels.

Parameters:

scalebarParams - Parameters for the scalebar.

settings - Parameters for rendering the scalebar.

maxLabelSize - The max. size of the labels.

getMaxLabelSize

protected static java.awt.Dimension getMaxLabelSize(ScaleBarRenderSettings settings)

Get the maximum width and height of the labels.

Parameters:

settings - Parameters for rendering the scalebar.

createLabelText

protected static java.lang.String createLabelText(DistanceUnit scaleUnit,
                                                  double value,
                                                  DistanceUnit intervalUnit)

Format the label text.

Parameters:

scaleUnit - The unit used for the scalebar.

value - The scale value.

intervalUnit - The scaled unit for the intervals.

getNearestNiceValue

protected static double getNearestNiceValue(double value,
                                            DistanceUnit scaleUnit,
                                            boolean lockUnits)

Reduce the given value to the nearest smaller 1 significant digit number starting with 1, 2 or 5.

Parameters:

value - the value to find a nice number for.

scaleUnit - the unit of the value.

lockUnits - if set, the values are not scaled to a "nicer" unit.

getBarSize

protected static int getBarSize(ScaleBarRenderSettings settings)

Get the bar size.

Parameters:

settings - Parameters for rendering the scalebar.

getLabelDistance

protected static int getLabelDistance(ScaleBarRenderSettings settings)

Get the label distance..

Parameters:

settings - Parameters for rendering the scalebar.