com.esri.arcgis.geoprocessing.tools.spatialanalysttools
Class KernelDensity

java.lang.Object
  extended by com.esri.arcgis.geoprocessing.AbstractGPTool
      extended by com.esri.arcgis.geoprocessing.tools.spatialanalysttools.KernelDensity
All Implemented Interfaces:
GPTool

public class KernelDensity
extends AbstractGPTool

Calculates a magnitude per unit area from point or polyline features using a kernel function to fit a smoothly tapered surface to each point or polyline. The Kernel Density tool is contained in the Spatial Analyst Tools tool box.

Usage tips:


Field Summary
 
Fields inherited from class com.esri.arcgis.geoprocessing.AbstractGPTool
vals
 
Constructor Summary
KernelDensity()
          Creates the Kernel Density tool with defaults.
KernelDensity(Object inFeatures, Object populationField, Object outRaster)
          Creates the Kernel Density tool with the required parameters.
 
Method Summary
 String getAreaUnitScaleFactor()
          Returns the Area units parameter of this tool .
 Object getCellSize()
          Returns the Output cell size parameter of this tool .
 Object getInFeatures()
          Returns the Input point or polyline features parameter of this tool .
 Object getOutRaster()
          Returns the Output raster parameter of this tool .
 Object getPopulationField()
          Returns the Population field parameter of this tool .
 double getSearchRadius()
          Returns the Search radius parameter of this tool .
 String getToolboxAlias()
          Returns the alias of the tool box containing this tool.
 String getToolboxName()
          Returns the name of the tool box containing this tool.
 String getToolName()
          Returns the name of this tool.
 void setAreaUnitScaleFactor(String areaUnitScaleFactor)
          Sets the Area units parameter of this tool .
 void setCellSize(Object cellSize)
          Sets the Output cell size parameter of this tool .
 void setInFeatures(Object inFeatures)
          Sets the Input point or polyline features parameter of this tool .
 void setOutRaster(Object outRaster)
          Sets the Output raster parameter of this tool .
 void setPopulationField(Object populationField)
          Sets the Population field parameter of this tool .
 void setSearchRadius(double searchRadius)
          Sets the Search radius parameter of this tool .
 
Methods inherited from class com.esri.arcgis.geoprocessing.AbstractGPTool
getParameterValues, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

KernelDensity

public KernelDensity()
Creates the Kernel Density tool with defaults.

Initializes the array of tool parameters with the default values specified when the tool was created.


KernelDensity

public KernelDensity(Object inFeatures,
                     Object populationField,
                     Object outRaster)
Creates the Kernel Density tool with the required parameters.

Initializes the array of tool parameters with the values as specified for the required parameters and with the default values for the other parameters.

Parameters:
inFeatures - the input features (point or line) for which to calculate the density.
populationField - field denoting population values for each feature. The Population field is the count or quantity to be spread across the landscape to create a continuous surface. values in the population field may be integer or floating point. use Shape if input features contains Z. use None if no item or special value will be used and each feature will be counted once. otherwise, the default field is POPULATION. Further to this:
  • If there is no POPULATION field, but there is a POPULATIONxxxx field, this is used by default. The "xxxx" can be any valid character, such as POPULATION6, POPULATION1974, or POPULATIONROADTYPE.
  • If there is no POPULATION field or POPULATIONxxxx field, but there is a POP field, this is used by default.
  • If there is no POPULATION field, POPULATIONxxxx field, or POP field, but there is a POPxxxx field, this is used by default.
  • If there is no POPULATION field, POPULATIONxxxx field, POP field, or POPxxxx field, NONE is used by default.
outRaster - the output kernel density raster. it is always a floating point raster.
Method Detail

getInFeatures

public Object getInFeatures()
Returns the Input point or polyline features parameter of this tool . This parameter is the input features (point or line) for which to calculate the density. This is a required parameter.

Returns:
the Input point or polyline features

setInFeatures

public void setInFeatures(Object inFeatures)
Sets the Input point or polyline features parameter of this tool . This parameter is the input features (point or line) for which to calculate the density. This is a required parameter.

Parameters:
inFeatures - the input features (point or line) for which to calculate the density.

getPopulationField

public Object getPopulationField()
Returns the Population field parameter of this tool . This parameter is field denoting population values for each feature. The Population field is the count or quantity to be spread across the landscape to create a continuous surface. values in the population field may be integer or floating point. use Shape if input features contains Z. use None if no item or special value will be used and each feature will be counted once. otherwise, the default field is POPULATION. Further to this: This is a required parameter.

Returns:
the Population field

setPopulationField

public void setPopulationField(Object populationField)
Sets the Population field parameter of this tool . This parameter is field denoting population values for each feature. The Population field is the count or quantity to be spread across the landscape to create a continuous surface. values in the population field may be integer or floating point. use Shape if input features contains Z. use None if no item or special value will be used and each feature will be counted once. otherwise, the default field is POPULATION. Further to this: This is a required parameter.

Parameters:
populationField - field denoting population values for each feature. The Population field is the count or quantity to be spread across the landscape to create a continuous surface. values in the population field may be integer or floating point. use Shape if input features contains Z. use None if no item or special value will be used and each feature will be counted once. otherwise, the default field is POPULATION. Further to this:
  • If there is no POPULATION field, but there is a POPULATIONxxxx field, this is used by default. The "xxxx" can be any valid character, such as POPULATION6, POPULATION1974, or POPULATIONROADTYPE.
  • If there is no POPULATION field or POPULATIONxxxx field, but there is a POP field, this is used by default.
  • If there is no POPULATION field, POPULATIONxxxx field, or POP field, but there is a POPxxxx field, this is used by default.
  • If there is no POPULATION field, POPULATIONxxxx field, POP field, or POPxxxx field, NONE is used by default.

getOutRaster

public Object getOutRaster()
Returns the Output raster parameter of this tool . This parameter is the output kernel density raster. it is always a floating point raster. This is a required parameter.

Returns:
the Output raster

setOutRaster

public void setOutRaster(Object outRaster)
Sets the Output raster parameter of this tool . This parameter is the output kernel density raster. it is always a floating point raster. This is a required parameter.

Parameters:
outRaster - the output kernel density raster. it is always a floating point raster.

getCellSize

public Object getCellSize()
Returns the Output cell size parameter of this tool . This parameter is the cell size for the output raster dataset. this is the value in the environment if specifically set. If the environment is not set, then cell size is the shorter of the width or height of the extent of the input features, in the output spatial reference, divided by 250. This is an optional parameter.

Returns:
the Output cell size

setCellSize

public void setCellSize(Object cellSize)
Sets the Output cell size parameter of this tool . This parameter is the cell size for the output raster dataset. this is the value in the environment if specifically set. If the environment is not set, then cell size is the shorter of the width or height of the extent of the input features, in the output spatial reference, divided by 250. This is an optional parameter.

Parameters:
cellSize - the cell size for the output raster dataset. this is the value in the environment if specifically set. If the environment is not set, then cell size is the shorter of the width or height of the extent of the input features, in the output spatial reference, divided by 250.

getSearchRadius

public double getSearchRadius()
Returns the Search radius parameter of this tool . This parameter is the search radius within which to calculate density. Units are based on the linear unit of the projection of the output spatial reference. for example, if the units are in meters, to include all features within in a one mile neighbourhood, set the search radius equal to 1609.344 (1 mile = 1609.344 meters). the default is the shortest of the width or height of the extent of the input features in the output spatial reference, divided by 30. This is an optional parameter.

Returns:
the Search radius

setSearchRadius

public void setSearchRadius(double searchRadius)
Sets the Search radius parameter of this tool . This parameter is the search radius within which to calculate density. Units are based on the linear unit of the projection of the output spatial reference. for example, if the units are in meters, to include all features within in a one mile neighbourhood, set the search radius equal to 1609.344 (1 mile = 1609.344 meters). the default is the shortest of the width or height of the extent of the input features in the output spatial reference, divided by 30. This is an optional parameter.

Parameters:
searchRadius - the search radius within which to calculate density. Units are based on the linear unit of the projection of the output spatial reference. for example, if the units are in meters, to include all features within in a one mile neighbourhood, set the search radius equal to 1609.344 (1 mile = 1609.344 meters). the default is the shortest of the width or height of the extent of the input features in the output spatial reference, divided by 30.

getAreaUnitScaleFactor

public String getAreaUnitScaleFactor()
Returns the Area units parameter of this tool . This parameter is the desired area units of the output density values. a default unit is selected based on the linear unit of the projection of the output spatial reference. You can change this to the appropriate unit if you wish to convert the density output. Values for line density convert the units of both length and area. for example, if your input units are meters the default output area density units will be square kilometers for point features or kilometers per square kilometer for polyline features. the default density units based on the input feature units are: This is an optional parameter.

Returns:
the Area units

setAreaUnitScaleFactor

public void setAreaUnitScaleFactor(String areaUnitScaleFactor)
Sets the Area units parameter of this tool . This parameter is the desired area units of the output density values. a default unit is selected based on the linear unit of the projection of the output spatial reference. You can change this to the appropriate unit if you wish to convert the density output. Values for line density convert the units of both length and area. for example, if your input units are meters the default output area density units will be square kilometers for point features or kilometers per square kilometer for polyline features. the default density units based on the input feature units are: This is an optional parameter.

Parameters:
areaUnitScaleFactor - the desired area units of the output density values. a default unit is selected based on the linear unit of the projection of the output spatial reference. You can change this to the appropriate unit if you wish to convert the density output. Values for line density convert the units of both length and area. for example, if your input units are meters the default output area density units will be square kilometers for point features or kilometers per square kilometer for polyline features. the default density units based on the input feature units are:

getToolName

public String getToolName()
Returns the name of this tool.

Returns:
the tool name

getToolboxName

public String getToolboxName()
Returns the name of the tool box containing this tool.

Returns:
the tool box name

getToolboxAlias

public String getToolboxAlias()
Returns the alias of the tool box containing this tool.

Returns:
the tool box alias