Create Constant, Normal and Random Raster Tools
Create Constant Raster
How to use Create Constant Raster Tool in Arc Toolbox??
 |
| Create Constant Raster |
Path to access the tool
:
Create
Constant Raster Tool, Raster Creation Toolset, Spatial Analyst Tools Toolbox
Create Constant Raster
Creates a raster of a
constant value within the extent and cell size of the analysis window.
1. Output raster
The output raster for
which each cell will have the specified constant value.
2. Constant value
The constant value with
which to populate all the cells in the output raster.
3. Output data type (optional)
Data type of the output raster dataset.
- INTEGER—An integer raster will be created.
- FLOAT—A floating-point raster will be created.
If the specified data
type is FLOAT, the values of the cells in the output raster will only be
accurate to the constant value of 7 decimal places, regardless of the output
format.
4. Output cell size (optional)
The cell size of the
output raster that will be created.
This parameter can be
defined by a numeric value or obtained from an existing raster dataset. If the
cell size hasn't been explicitly specified as the parameter value, the
environment cell size value will be used if specified; otherwise, additional
rules will be used to calculate it from the other inputs. See the usage for
more detail.
5. Output extent (optional)
The extent for the
output raster dataset.
The extent will be the
value in the environment if specifically set. If not specifically set, the
default is 0, 0, 250, 250.
Create Normal Raster
How to use Create Normal Raster Tool in Arc Toolbox??
 |
| Create Normal Raster |
Path to access the tool
:
Create
Normal Raster Tool, Raster Creation Toolset,
Spatial Analyst Tools Toolbox
Create Normal Raster
Creates a raster of
random floating-point values between 0.0 and 1.0 within the extent and cell
size of the analysis window.
1. Output raster
The output raster of
randomly distributed values with a range of 0.0 to 1.0
2. Seed value (optional)
A value to be used to
reseed the random number generator.
This may be an integer
or floating-point number. Rasters are not permitted as input.
The random number
generator is automatically seeded with the current value of the system clock
(seconds since January 1, 1970). The range of permissible values for the seed
value is -231+1 to 231 (or -2,147,483,647 to 2,147,483,648).
3. Output cell size (optional)
The cell size of the
output raster that will be created.
This parameter can be
defined by a numeric value or obtained from an existing raster dataset. If the
cell size hasn't been explicitly specified as the parameter value, the
environment cell size value will be used if specified; otherwise, additional
rules will be used to calculate it from the other inputs. See the usage for
more detail.
4. Output extent (optional)
The extent for the
output raster dataset.
The extent will be the
value in the environment if specifically set. If not specifically set, the
default is 0, 0, 250, 250.
Create Random Raster
How to use Create Random Raster Tool in Arc Toolbox??
 |
| Create Random Raster |
Path to access the tool
:
Create
Random Raster Tool, Raster Creation Toolset,
Spatial Analyst Tools Toolbox
Create Random Raster
Creates a raster of
random floating-point values between 0.0 and 1.0 within the extent and cell
size of the analysis window.
1. Output raster
The output raster of
randomly distributed values with a range of 0.0 to 1.0
2. Seed value (optional)
A value to be used to
reseed the random number generator.
This may be an integer
or floating-point number. Rasters are not permitted as input.
The random number
generator is automatically seeded with the current value of the system clock
(seconds since January 1, 1970). The range of permissible values for the seed
value is -231+1 to 231 (or -2,147,483,647 to 2,147,483,648).
3. Output cell size (optional)
The cell size of the
output raster that will be created.
This parameter can be
defined by a numeric value or obtained from an existing raster dataset. If the
cell size hasn't been explicitly specified as the parameter value, the
environment cell size value will be used if specified; otherwise, additional
rules will be used to calculate it from the other inputs. See the usage for
more detail.
4. Output extent (optional)
The extent for the
output raster dataset.
The extent will be the value in the environment if specifically set. If not specifically set, the default is 0, 0, 250, 250.
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