Navigation:  WebOffice clients > WebOffice core Client > Structure > Ribbons > Tools > Analysis >

Spatial Analysis Tools

Previous pageReturn to chapter overviewNext page

 

spatial_analysis_tools_toolbox

 

Since ArcGIS version 10.4, the spatial analysis tools can be used in the system dictionary of an ArcGIS Server which is federated with Portal for ArcGIS. These spatial analysis tools contain a variety of geoprocessing tasks. Using WebOffice 10.8 SP2, selected tasks can be directly integrated with the WebOffice core client and can accordingly be used in common procedures, e.g. usage based on query results.. The following geoprocessing tasks can be currently used with WebOffice core client:

 

Create Buffers
This geoprocessing task creates (multiple) polygons which cover a predefined distance starting at a point, line or polygon feature.

 
spatial_analysis_tools_createbuffers

createbuffers

 

Property

Description

Target layer

Feature with point, line or polygon geometry which is used as the source of the buffer creation.

Distance by

Specifies whether a list of distances ('Distance') or the value of a certain field ('Field') is used to create the buffer.

Distances

 

 

 

 

 

 

 

 

 

Distance field

 

If 'Distance' was chosen in the field Distance by, this field takes the values to create the buffer. This distances have to be written within squared brackets.
 
Examples:
Simple Buffer: [100]

Multiple Buffer (Creation of multiple buffer circles): [100,200,300]

Usage of decimal places: [100.5]

 

If 'Field' was chosen in the field Distance by, this field specifies which attribute value is taken to create the buffer.

Unit

Specifies the linear unit for the distance values.

Dissolve type

Determines whether adjacent buffer areas should be overlapping  ('None') or dissolved ('Dissolve'). There is also an additional option called 'Split', which avoids overlapping by delimiting adjacent buffer areas along the imaginary center line of their overlap.

Note: Please consider that 'Split' is only available if point geometries are used as target layer.

Buffer type

Determines the type of the buffer area. This is especially important for the calculation of multiple buffers. 'Rings' creates separated, non-overlapping rings, while 'Disks' creates overlapping circles.

sideType

Determines whether the feature, which is used as the source of the buffer creation, is integrated into the buffer area ('Full') or not ('Outside').

Note: Please note that the sideType 'Outside' is only applicable to simple buffers.

Result layer name

Defines the name of the result layer, which is also displayed in the Table of Contents.

Properties of Create Buffers

 

 

Find HotSpots

This tool analyses point data to identify statistical significant spatial clusters with high values / densities (Hot Spots) and low values / densities (Cold Spots).
 

 

spatial_analysis_tools_findhotspots

findhotspots

 

Property

Description

Target Layer

Point or polygon layer which is used as source of the hotspot calculation.

Find clusters of

Determines the numeric field in the analyzed target layer. Either a specific field is selected, or the 'Point Counts' mode is used.

Count points within

 

If the target layer contains points and no specific field was selected via Find clusters of, a polygon layer can be chosen which is used as basis for the aggregation and analysis of the points. All points inside of a polygon feature are summarized to one result value.

Define where points are possible

If the target layer contains points and no specific field was selected via Find clusters of, a polygon layer can be chosen where events are possible. All points, which are not inside this polygons, are ignored.

Result layer name

Defines the name of the result layer, which is also displayed in the Table of Contents.

Properties of Find HotSpots

 

 

Aggregate Points
This tool works with point and polygon features and calculates, which points are contained by which polygons. The result can be used for further, field specific statistics.

 

spatial_analysis_tools_aggregatepoints

 

aggregatepoints

 

 

 

Property

Description

Target Layer

Point features, which are aggregated within a specific polygon.

Polygon Layer

Polygon layer in which the point features are aggregated.

Keep areas with no points

 

Specifies whether polygons, which contain no points, are returned.

Add Statistics

Further field specific statistical analyses can be determined for all points inside a polygon. The following statistics are provided:

 

Sum - Calculates the total value of all points inside every polygon.

Mean - Calculates the mean value of all points inside every polygon.

Min - Returns the smallest value of all points inside every polygon.

Max - Returns the largest value of all points inside every polygon.

Stddev - Returns the standard deviation of all points inside every polygon.

Group by field

Specifies the field name of the point layer, which is used to group the points.

Result layer name

Defines the name of the result layer, which is also displayed in the Table of Contents.

Properties of Aggregate Points

 

Note: If you use the spatial analysis tools based on a query result, only the selected objects are used for the analysis. If the spatial analysis tools are opened via the toolbox, the spatial analysis is based on all objects of the target layer.

Note: For details about the configuration of this tools, see chapter Spatial Analysis.

Note: For details about the configuration of this tools in query results, see chapter Spatial Analysis Tools.