3D Analyst Tools ArcToolbox

Lookup, Reclass by ASCII File, Reclass by Table and Reclassify Tools

Lookup

How to use Lookup Tool in Arc Toolbox??

Lookup Tool

Path to access the tool

:

Lookup Tool, Reclass Toolset, Spatial Analyst Tools Toolbox

 

Lookup

Creates a new raster by looking up values found in another field in the table of the input raster.

1. Input raster

The input raster that contains a field from which to create a new raster.

2. Lookup field

Field containing the desired values for the new raster.

It can be a numeric or string type.

3. Output raster

The output raster whose values are determined by the specified field of the input raster.

Reclass by ASCII File

How to use Reclass by ASCII File Tool in Arc Toolbox??

Reclass by ASCII File

Path to access the tool

:

Reclass by ASCII File Tool, Reclass Toolset, Spatial Analyst Tools Toolbox

 

Reclass by ASCII File

Reclassifies (or changes) the values of the input cells of a raster using an ASCII remap file.

1. Input raster

The input raster to be reclassified.

2. Input ASCII remap file

ASCII remap file defining the single values or ranges to be reclassified and the values they will become.

Allowed extensions for the ASCII remap files are .rmp, .txt, and .asc.

3. Output raster

The output reclassified raster.

The output will always be of integer type.

4. Change missing values to NoData (optional)

Denotes whether missing values in the reclass file retain their value or get mapped to NoData.

1. Unchecked—Signifies that if any cell location on the input raster contains a value that is not present or reclassed in the remap file, the value should remain intact and be written for that location to the output raster. This is the default.
2. Checked—Signifies that if any cell location on the input raster contains a value that is not present or reclassed in the remap file, the value will be reclassed to NoData for that location on the output raster.

Reclass by Table

How to use Reclass by Table Tool in Arc Toolbox??

Reclass by Table

Path to access the tool

:

Reclass by Table Tool, Reclass Toolset, Spatial Analyst Tools Toolbox

 

Reclass by Table

Reclassifies (or changes) the values of the input cells of a raster using a remap table.

1. Input raster

The input raster to be reclassified.

2. Input remap table

Table holding fields defining value ranges to be reclassified and the values they will become.

3. From value field

Field holding the beginning value for each value range to be reclassified.

This is a numeric field of the input remap table.

4. To value field

Field holding the ending value for each value range to be reclassified.

This is a numeric field of the input remap table.

5. Output value field

Field holding the integer values to which each range should be changed.

This is an integer field of the input remap table.

6. Output raster

The output reclassified raster.

The output will always be of integer type.

7. Change missing values to NoData (optional)

Denotes whether missing values in the reclass table retain their value or get mapped to NoData.

1. Unchecked—Signifies that if any cell location on the input raster contains a value not present or reclassed in a remap table, the value should remain intact and be written for that location to the output raster. This is the default.
2. Checked—Signifies that if any cell location on the input raster contains a value not present or reclassed in a remap table, the value will be reclassed to NoData for that location on the output raster.

Reclassify

How to Reclassify Tool in Arc Toolbox ArcMap ArcGIS??

Reclassify Tool

Path to access the tool

:

Reclassify Tool, Reclass Toolset, Spatial Analyst Tools Toolbox

 

Reclassify

Reclassifies (or changes) the values in a raster.

1. Input raster

The input raster to be reclassified.

2. Reclass field

Field denoting the values that will be reclassified.

3. Reclassification

A remap table that defines how the values will be reclassified.

1. Old values—The ranges of values of cells in the input raster. Acceptable settings are a single value, a range of values, a string, or NoData. A list of single values can be specified by separating each with a semicolon (;). A range of values can be specified by using a hyphen (-) as the range separator.
2. New values—The new value to assign the values or ranges of values. Only integer values are supported.
3. Classify—Opens the dialog box allowing the classification Method to be specified. The options are Manual, Equal Interval, Defined Interval, Quantile, Natural Breaks (Jenks), Geometrical Interval, and Standard Deviation.
4. Unique—Reclassifies the input raster into unique values (lowest cell value of input will be value 1; next lowest input value will be 2; and so on).
5. Add Entry—Adds a blank entry to the reclassification.
6. Delete Entries—Deletes selected entries from the reclassification.
7. Load—Loads a previously created remap table.
8. Save—Saves the specified remap table.
9. Reverse New Values—Re-sorts the New values list (for example, 1,2,3 becomes 3,2,1).
10. Precision—Controls the numerical precision of the reclassification values.

4. Output raster

The output reclassified raster.

The output will always be of integer type.

5. Change missing values to NoData (optional)

Denotes whether missing values in the reclass table retain their value or get mapped to NoData.

1. Unchecked—Signifies that if any cell location on the input raster contains a value that is not present or reclassed in a remap table, the value should remain intact and be written for that location to the output raster. This is the default.
2. Checked—Signifies that if any cell location on the input raster contains a value that is not present or reclassed in a remap table, the value will be reclassed to NoData for that location on the output raster.