Extract by Attributes, Circle, Mask, Points, Polygon, Rectangle, Multi Values to Points and Sample Tools
Extract by Attributes
How to use Extract by Attributes Tool in Arc Toolbox ArcMap ArcGIS??
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| Extract by Attributes |
Path to access the tool
:
Extract
by Attributes Tool, Extraction Toolset, Spatial
Analyst Tools Toolbox
Extract by Attributes
Extracts the cells of a
raster based on a logical query.
1. Input raster
The input raster from
which cells will be extracted.
2. Where clause
A logical expression
that selects a subset of raster cells.
The Where clause follows
the general form of an SQL expression.It can be entered directly, for example,
VALUE > 100. To use a text attribute field, use single quotes around the
values, for example, landuse = 'urban'. It can also be created in the Query
Builder dialog box that results from clicking on the SQL button.
3. Output raster
The output raster
containing the cell values extracted from the input raster.
Extract by Circle
How to use Extract by Circle Tool in Arc Toolbox ArcMap ArcGIS??
 |
| Extract by Circle |
Path to access the tool
:
Extract
by Circle Tool, Extraction Toolset, Spatial Analyst Tools Toolbox
Extract by Circle
Extracts the cells of a
raster based on a circle by specifying the circle's center and radius.
1. Input raster
The input raster from
which cells will be extracted.
2. Center point
Center coordinate (x,y)
of circle defining the area to be extracted.
The coordinates are
specified in the same map units as the input raster.
3. Radius
Radius of the circle
defining the area to be extracted.
The radius is specified
in map units and is in the same units as the input raster.
4. Output raster
The output raster
containing the cell values extracted from the input raster.
5. Extraction area (optional)
Identifies whether to extract cells inside or outside the input circle.
- INSIDE—A keyword specifying that the cells inside the input circle should be selected and written to the output raster. All cells outside the circle will receive NoData values on the output raster.
- OUTSIDE—A keyword specifying that the cells outside the input circle should be selected and written to the output raster. All cells inside the circle will receive NoData values on the output raster.
Extract by Mask
How to use Extract by Mask Tool in Arc Toolbox ArcMap ArcGIS??
 |
| Extract by Mask |
Path to access the tool
:
Extract
by Mask Tool, Extraction Toolset, Spatial Analyst Tools Toolbox
Extract by Mask
Extracts the cells of a
raster that correspond to the areas defined by a mask.
1. Input raster
The input raster from
which cells will be extracted.
2. Input raster or feature mask data
Input mask data defining
areas to extract.
It can be a raster or
feature dataset.
When the input mask data
is a raster, NoData cells on the mask will be assigned NoData values on the
output raster.
When the input mask is
feature data, cells in the input raster whose center falls within the perimeter
of the feature will be included in the output, while cells whose center falls
outside it will receive NoData.
3. Output raster
The output raster
containing the cell values extracted from the input raster.
Extract by Points
How to use Extract by Points Tool in Arc Toolbox ArcMap ArcGIS??
 |
| Extract by Points |
Path to access the tool
:
Extract
by Points Tool, Extraction Toolset, Spatial Analyst Tools Toolbox
Extract by Points
Extracts the cells of a
raster based on a set of coordinate points.
1. Input raster
The input raster from
which cells will be extracted.
2. Input points
The points where values
will be extracted from the raster.
The points are specified
as x,y coordinate pairs in the same map units as the input raster.
3. Output raster
The output raster
containing the cell values extracted from the input raster.
4. Extraction area (optional)
Identifies whether to extract cells based on the specified point locations (inside) or outside the point locations (outside).
- INSIDE—A keyword specifying that the cell in which the selected point falls will be written to the output raster. All cells outside the box will receive NoData on the output raster.
- OUTSIDE—A keyword specifying that the cells outside the input points should be selected and written to the output raster.
Extract by Polygon
How to use Extract by Polygon Tool in Arc Toolbox ArcMap ArcGIS??
 |
| Extract by Polygon |
Path to access the tool
:
Extract
by Polygon Tool, Extraction Toolset, Spatial
Analyst Tools Toolbox
Extract by Polygon
Extracts the cells of a
raster based on a polygon by specifying the polygon's vertices.
1. Input raster
The input raster from
which cells will be extracted.
2. Polygon
A polygon (or polygons)
defined by a series of vertices (x,y point coordinates) that identify the area
of the input raster to be extracted. The last coordinate of a polygon part
should be the same as the first in order to close a polygon.
When specifying multiple
polygons, they must be contiguous. Enter the series of coordinates polygon by
polygon. Be sure to close each part by defining the last coordinate the same as
the first one.
The points are in the
same map units as the input raster.
3. Output raster
The output raster
containing the cell values extracted from the input raster.
4. Extraction area (optional)
Identifies whether to extract cells inside or outside the input polygon.
- INSIDE—A keyword specifying that only the cells inside the input polygon should be selected and written to the output raster. All cells outside the polygon will receive NoData values on the output raster.
- OUTSIDE—A keyword specifying that the cells outside the input polygon should be selected and written to the output raster. All cells inside the polygon will receive NoData.
Extract by Rectangle
How to use Extract by Rectangle Tool in Arc Toolbox ArcMap ArcGIS??
 |
| Extract by Rectangle |
Path to access the tool
:
Extract
by Rectangle Tool, Extraction Toolset, Spatial
Analyst Tools Toolbox
Extract by Rectangle
Extracts the cells of a
raster based on a rectangle by specifying the rectangle's extent.
1. Input raster
The input raster from
which cells will be extracted.
2. Extent
A rectangle that defines
the area to be extracted.
Left and Bottom define
the lower-left coordinate of the area to be extracted, with Right and Top
defining the upper-right coordinate.
The coordinates are
specified in the same map units as the input raster.
The coordinates are
specified in the same map units as the input raster.
3. Output raster
The output raster
containing the cell values extracted from the input raster.
4. Extraction area (optional)
Identifies whether to extract cells inside or outside the input rectangle.
- INSIDE— A keyword specifying that the cells inside the input rectangle should be selected and written to the output raster. All cells outside the rectangle will receive NoData values on the output raster.
- OUTSIDE—A keyword specifying that the cells outside the input rectangle should be selected and written to the output raster. All cells inside the rectangle will receive NoData values on the output raster.
Extract Multi Values to Points
How to use Extract Multi Values to Points Tool in Arc Toolbox ArcMap ArcGIS??
 |
| Extract Multi Values to Points |
Path to access the tool
:
Extract
Multi Values to Points Tool, Extraction Toolset, Spatial
Analyst Tools Toolbox
Extract Multi Values to Points
Extracts cell values at
locations specified in a point feature class from one or more rasters and
records the values to the attribute table of the point feature class.
1. Input point features
The input point features
to which you want to add raster values.
2. Input rasters
The input raster (or
rasters) values you want to extract based on the input point feature location.
Optionally, you can
supply the name for the field to store the raster value. By default, a unique
field name will be created based on the input raster dataset name.
3. Bilinear interpolation of values at point locations (optional)
Specifies whether or not interpolation will be used.
- Unchecked—No interpolation will be applied; the value of the cell center will be used. This is the default.
- Checked—The value of the cell will be calculated from the adjacent
cells with valid values using bilinear interpolation. NoData values will be
ignored in the interpolation unless all adjacent cells are NoData.
Extract Values to Points
How to use Extract Values to Points Tool in Arc Toolbox ArcMap ArcGIS??
 |
Extract Values to Points |
Path to access the tool
:
Extract
Values to Points Tool, Extraction Toolset, Spatial
Analyst Tools Toolbox
Extract Values to Points
Extracts the cell values
of a raster based on a set of point features and records the values in the
attribute table of an output feature class.
1. Input point features
The input point features
defining the locations from which you want to extract the raster cell values.
2. Input raster
The raster dataset whose
values will be extracted.
It can be an integer or
floating-point type raster.
3. Output point features
The output point feature
dataset containing the extracted raster values.
4. Interpolate values at the point locations (optional)
Specifies whether or not interpolation will be used.
- Unchecked—No interpolation will be applied; the value of the cell center will be used. This is the default.
- Checked—The value of the cell will be calculated from the adjacent cells with valid values using bilinear interpolation. NoData values will be ignored in the interpolation unless all adjacent cells are NoData.
5. Append all the input raster attributes to the output point features (optional)
Determines if the raster attributes are written to the output point feature dataset.
- Unchecked—Only the value of the input raster is added to the point attributes. This is the default.
- Checked—All the fields from the input raster (except Count) will be added to the point attributes.
Sample
How to use Sample Tool in Arc Toolbox ArcMap ArcGIS??
 |
| Sample Tool |
Path to access the tool
:
Sample Tool, Extraction Toolset, Spatial Analyst Tools Toolbox
Sample
Creates a table that
shows the values of cells from a raster, or set of rasters, for defined
locations. The locations are defined by raster cells or by a set of points.
The input rasters can be
two-dimensional or multidimensional. The structure of the output table changes
when the input rasters are multidimensional.
1. Input rasters
The rasters whose values
will be sampled based on the input location data.
2. Input location raster or point features
Data identifying
positions at which you want a sample taken.
This can be a raster or
a point feature dataset.
3. Output table
Output table holding the
sampled cell values.
The format of the table
is determined by the output location and path. By default, the output will be a
geodatabase table. If the path is not in a geodatabase, the format is
determined by the extension. If the extension is .dbf, it will be in dBASE
format. If no extension is specified, the output will be an INFO table.
4. Resampling technique (optional)
Resampling algorithm used when sampling a raster.
- NEAREST—Nearest neighbor assignment
- BILINEAR—Bilinear interpolation
- CUBIC—Cubic convolution
5. Unique ID field (optional)
A field containing a
different value for every location or feature in the input location raster or
point features.
6. Process as multidimensional (optional)
Determines how the input rasters are processed.
- Unchecked—Samples will be taken from the current slice of a multidimensional dataset. This is the default.
- Checked—Samples will be taken for all dimensions (such as time or depth) of a multidimensional dataset.
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