Identity, Intersect Tools
Identity
How to use Identity Tool in ArcToolbox ArcMap ArcGIS??
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| Identity Tool |
Identity Tool, Overlay
Toolset, Analysis Toolbox
Identity
Computes a geometric
intersection of the input features and identity features. The input features or
portions thereof that overlap identity features will get the attributes of
those identity features.
1. Input Features
The input feature class
or layer.
2. Identity Features
The identity feature
class or layer. Must be polygons or the same geometry type as the input
features.
3. Output Feature Class
The feature class that
will be created and to which the results will be written.
4. Join Attributes (optional)
Determines what
attributes will be transferred to the output feature class.
· ALL—All the attributes
(including FIDs) from the input features, as well as the identity features,
will be transferred to the output features. If no intersection is found the
identity feature values will not be transferred to the output (their values
will be set to empty strings or 0) and the identity feature FID will be -1.
This is the default.
· NO_FID—All the
attributes except the FID from the input features and identity features will be
transferred to the output features. If no intersection is found the identity
feature values will not be transferred to the output (their values will be set
to empty strings or 0).
· ONLY_FID—All the attributes from the input features but only the FID from the identity features will be transferred to the output features. The identity features FID attribute value in the output will be -1 if no intersection is found.
5. XY Tolerance (optional)
The minimum distance separating all feature coordinates (nodes and vertices) as well as the distance a coordinate can move in X or Y (or both).
6. Keep relationships (optional)
Choose if you want
additional spatial relationships between the Input Features and Identity
Features to be written to the output. This only applies when the Input Features
are lines and the Identity Features are polygons.
· Unchecked—No additional
spatial relationship will be determined.
· Checked—The output line features will contain two additional fields, LEFT_poly and RIGHT_poly. These fields contain the feature ID of the Identity Features on the left and right side of the line feature.
Intersect
How to use Intersect Tool in ArcToolbox ArcMap ArcGIS??
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| Intersect Tool |
Intersect Tool, Overlay Toolset, Analysis Toolbox
Intersect
Computes a geometric
intersection of the input features. Features or portions of features which
overlap in all layers and/or feature classes will be written to the output
feature class.
1. Input Features
A list of the input
feature classes or layers. When the distance between features is less than the
cluster tolerance, the features with the lower rank will snap to the feature
with the higher rank. The highest rank is one.
2. Output Feature Class
The output feature
class.
3. Join Attributes (optional)
Determines which
attributes from the input features will be transferred to the output feature
class.
· ALL—All the attributes
from the input features will be transferred to the output feature class. This
is the default.
· NO_FID—All the
attributes except the FID from the input features will be transferred to the
output feature class.
· ONLY_FID—Only the FID
field from the input features will be transferred to the output feature class.
4. XY Tolerance (optional)
The minimum distance separating all feature coordinates (nodes and vertices) as well as the distance a coordinate can move in X or Y (or both).
5. Output Type (optional)
Choose what type of
intersection you want to find.
· INPUT—The intersections
returned will be the same geometry type as the input features with the lowest
dimension geometry. If all inputs are polygons, the output feature class will
contain polygons. If one or more of the inputs are lines and none of the inputs
are points, the output will be line. If one or more of the inputs are points,
the output feature class will contain points. This is the default.
· LINE—Line intersections
will be returned. This is only valid if none of the inputs are points.
· POINT—Point intersections will be returned. If the inputs are line or polygon, the output will be a multipoint feature class.
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