com.nchart3d.NChart.NChartLODSeries Class Reference

The NChartLODSeries class provides a compound series that switches its graphical representation and dataset according to the zoom level. More...

Inheritance diagram for com.nchart3d.NChart.NChartLODSeries:

Public Member Functions
void	removeLOD (NChartLOD lod)
	Remove LOD. More...
NChartLOD[]	getLods ()
	Array of LODs.
NChartLOD	getCurrentLOD ()
	Current LOD that corresponds to the current chart zoom.
Public Member Functions inherited from com.nchart3d.NChart.NChartSeries
NChartPoint[]	getPoints ()
	Array of points.
Bitmap	getImage ()
	Image that is displayed in the legend. More...
Bitmap	getDisabledImage ()
	Image that is displayed in the legend when the series is hidden (aka disabled). More...
String	getName ()
	Name of the series.
int	getNameColor ()
	Get color of the series name displayed in the legend. More...
void	setNameColor (int color)
	For details see getNameColor().
int	getDisabledNameColor ()
	Get color of the series name displayed in the legend when the series is hidden (aka disabled). More...
void	setDisabledNameColor (int color)
	For details see getDisabledNameColor().
float	getLegendMarkerSize ()
	Size of default series' marker in legend in pixels. More...
void	setLegendMarkerSize (float legendMarkerSize)
	For details see getLegendMarkerSize().
NChartBrushScale	getScale ()
	Brush scale of the series used to color the map.
void	setScale (NChartBrushScale scale)
	For details see getScale().
int	getTag ()
	Tag of the series. More...
void	setTag (int tag)
	For details see getTag().
boolean	isVisible ()
	Flag that determines if the series is visible or not. More...
void	setVisible (boolean visible)
	For details see isVisible().
boolean	getHostsOnSX ()
	Flag that determines if the series is hosted on the secondary X-axis. More...
void	setHostsOnSX (boolean hostsOnSX)
	For details see getHostsOnSX().
boolean	getHostsOnSY ()
	Flag that determines if the series is hosted on the secondary Y-axis. More...
void	setHostsOnSY (boolean hostsOnSY)
	For details see getHostsOnSY().
boolean	getHostsOnSZ ()
	Flag that determines if the series is hosted on the secondary Z-axis. More...
void	setHostsOnSZ (boolean hostsOnSZ)
	For details see getHostsOnSZ().
NChartSeriesDataSource	getDataSource ()
	Data source for the series. More...
void	setDataSource (NChartSeriesDataSource dataSource)
	For details see getDataSource().
NChartDataSmoother	getDataSmoother ()
	Data smoother used. More...
void	setDataSmoother (NChartDataSmoother dataSmoother)
	For details see getDataSmoother().
boolean	isForceAbsolute ()
	Flag that determines if the series forces absolute value axis. More...
void	setForceAbsolute (boolean forceAbsolute)
	For details see isForceAbsolute().
boolean	isPointSelectionEnabled ()
	Flag determining if the chart points can be selected by tap (true) or not (false). More...
void	setPointSelectionEnabled (boolean pointSelectionEnabled)
	For details see isPointSelectionEnabled().
boolean	isNeedsSeparateSums ()
	Flag determining if in the additive value axis mode (when valueAxesType = NChartValueAxesType.Additive) positive and negative values are added separately, so all positives are above zero and all negatives are below zero (true), or all the values are just added together (false). More...
void	setNeedsSeparateSums (boolean needsSeparateSums)
	For details see isNeedsSeparateSums().
boolean	isUpdateAllowed ()
	Flag providing a hint that the series has no modifications and should not be updated by the next NChart#rebuildSeries() or NChart#updateSeries() call (false) or it should be updated as normal (true). More...
void	setUpdateAllowed (boolean updateAllowed)
	For details see isUpdateAllowed().
Public Member Functions inherited from com.nchart3d.NChart.NChartObject
boolean	isVisible ()
	Flag that determines if the object is visible or not. More...
void	setVisible (boolean visible)
	For details see isVisible().
NChart	getChart ()
	Chart the object belongs to. More...

Detailed Description

The NChartLODSeries class provides a compound series that switches its graphical representation and dataset according to the zoom level.

Use it when you want to present different levels of detail (LODs) of your data.
For example, let's say you have a dataset with 100M points. It is by far too much for any plot to handle, and even if it would be possible, it would not be really informative for a user to show that full amount at once. More logically is to use LODs here: at the zoom level of 1.0 (full overview), only a rough view is shown, say, 1k of points (each 100k-th point, or maybe some smart aggregation, if you have resources to do it). This is LOD0. You may want to show it as an area series, for example. As the user zooms in, only a subset of the data becomes visible, and the plot gets replaced by another one, representing this subset in more details.
To achieve the above, you should create an NChartLODSeries instance, attach a data source object to it that will supply the data for each LOD and each data window, and add the desired LOD levels to it. You don't need to attach data sources to the internal series, just to the NChartLODSeries.

Member Function Documentation

void com.nchart3d.NChart.NChartLODSeries.removeLOD ( NChartLOD  lod )

inline

Remove LOD.

Parameters

lod	- LOD to remove.