netcharts.pro.common.image
Class NFImageOutput

java.lang.Object
  netcharts.pro.common.image.NFImageOutput

All Implemented Interfaces:

NFImageExtension

Direct Known Subclasses:

NFPDFImageOutput, NFRasterImageOutput, NFSVGImageOutput

public abstract class NFImageOutput
extends java.lang.Object
implements NFImageExtension

Base implementation for image rendering.

Method Summary

abstract NFImageParams	getImageParamsInstance() Returns a default NFImageParams instance specific to this image generation extension.
java.lang.String	getMimeType() Returns the MIME type of the image generation implementation.
NFServerGeneratedImage	getServerGeneratedImage(NFGraph graph, NFImageParams properties) Generates an image of the given chart using the specified image generation parameters.

Methods inherited from class java.lang.Object

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

Method Detail

getMimeType

public java.lang.String getMimeType()

Returns the MIME type of the image generation implementation.

Returns:

String containing the MIME type of the image generation implementation.

getServerGeneratedImage

public NFServerGeneratedImage getServerGeneratedImage(NFGraph graph,
                                                      NFImageParams properties)
                                               throws java.lang.Exception

Generates an image of the given chart using the specified image generation parameters.

Specified by:

getServerGeneratedImage in interface NFImageExtension

Parameters:

graph - The chart instance to render to an image.

properties - The parameters of the image generation.

Returns:

NFServerGeneratedImage instance containing the image and related metadata.

Throws:

java.lang.Exception - If there was an exception generating the image

getImageParamsInstance

public abstract NFImageParams getImageParamsInstance()

Description copied from interface: NFImageExtension

Returns a default NFImageParams instance specific to this image generation extension.

Specified by:

getImageParamsInstance in interface NFImageExtension

Returns:

NFImageParams instance containing default image generation parameters.