Detect Feature Changes, Feature and File Compare Tools
Detect Feature Changes
How to use Detect Feature
Changes Tool in ArcToolbox ArcMap ArcGIS??Detect Feature Changes
Path to access the tool
:
Detect
Feature Changes Tool, Data Comparison Toolset, Data Management Tools Toolbox
Detect Feature Changes
Finds where the update
line features spatially match the base line features and detects spatial
changes, attribute changes, or both, as well as no change, and creates an
output feature class containing matched update features with information about
their changes, unmatched update features, and unmatched base features.
1. Update Features
Line features to compare
to the base features.
2. Base Features
Line features to be
compared with update features for change detection.
3. Output Feature Class
Output line feature
class with change information. The output contains all participating update
features (matched and unmatched) and any unmatched base features.
4. Search Distance
The distance used to
search for match candidates. A distance must be specified and it must be
greater than zero. You can choose a preferred unit; the default is the feature
unit.
5. Match Fields (optional)
Lists of fields from
update and base features. If specified, each pair of fields are checked for
match candidates to help determine the right match.
6. Output Match Table (optional)
The output table
containing complete feature matching information.
7. Change Tolerance (optional)
The distance used to
determine if there is a spatial change. All matched update features and base
features are checked against this tolerance. If any portions of update or base
features fall outside the zone around the matched feature, it is considered a
spatial change. A distance can be equal to or greater than zero.
The default is
0. When a value greater than zero is specified, the output will include the
LEN_PCT and LEN_ABS fields. You can choose a preferred unit; the default is the
feature unit.
8. Compare Fields (optional)
Fields to determine if
there is an attribute change between matched update and base features.
9. Compare line direction (optional)
Specifies whether or not to compare line directions for matched features.
- Unchecked—Line directions will not be compared for matched features. This is the default.
- Checked—Line directions will be compared for matched features.
Feature Compare
How to use Feature Compare Tool in ArcToolbox ArcMap ArcGIS??Feature Compare
Path
to access the toolFeature Compare
:
Feature
Compare Tool, Data Comparison Toolset, Data Management Tools
Toolbox
Feature Compare
Compares two feature
classes or layers and returns the comparison results.
1. Input Base Features
The Input Base Features
are compared with the Input Test Features. Input Base Features refers to data
that you have declared valid. This base data has the correct geometry
definitions, field definitions, and spatial reference.
2. Input Test Features
The Input Test Features
are compared against the Input Base Features. Input Test Features refers to
data that you have made changes to by editing or compiling new features.
3. Sort Field
The field or fields used
to sort records in the Input Base Features and the Input Test Features. The
records are sorted in ascending order. Sorting by a common field in both the
Input Base Features and the Input Test Features ensures that you are comparing
the same row from each input dataset.
4. Compare Type (optional)
The comparison type. The default is All, which will compare all properties of the features being compared.
- ALL—All properties of the feature classes will be compared. This is the default.
- GEOMETRY_ONLY—Only the geometries of the feature classes will be compared.
- ATTRIBUTES_ONLY—Only the attributes and their values will be compared.
- SCHEMA_ONLY—Only the schema of the feature classes will be compared.
- SPATIAL_REFERENCE_ONLY—Only the spatial references of the two feature classes will be compared.
5. Ignore Options (optional)
These properties will not be compared.
- IGNORE_M—Do not compare measure properties.
- IGNORE_Z—Do not compare elevation properties.
- IGNORE_POINTID—Do not compare point ID properties.
- IGNORE_EXTENSION_PROPERTIES—Do not compare extension properties.
- IGNORE_SUBTYPES—Do not compare subtypes.
- IGNORE_RELATIONSHIPCLASSES—Do not compare relationship classes.
- IGNORE_REPRESENTATIONCLASSES—Do not compare representation classes.
- IGNORE_FIELDALIAS—Do not compare field aliases.
6. XY Tolerance (optional)
The distance that determines the range in which
features are considered equal. To minimize error, the value you choose for the
compare tolerance should be as small as possible. By default, the compare
tolerance is the XY tolerance of the input base features.
7. M Tolerance (optional)
The measure tolerance is
the minimum distance between measures before they are considered equal.
8. Z Tolerance (optional)
The Z Tolerance is the
minimum distance between z coordinates before they are considered equal.
9. Attribute Tolerance (optional)
The numeric value that
determines the range in which attribute values are considered equal. This only
applies to numeric field types.
10. Omit Fields (optional)
The field or fields that
will be omitted during comparison. The field definitions and the tabular values
for these fields will be ignored.
11. Continue Comparison (optional)
Indicates whether to compare all properties after encountering the first mismatch.
- Unchecked—Stops after encountering the first mismatch. This is the default.
- Checked—Compares other properties after encountering the first mismatch.
12. Output Compare File (optional)
This file will contain all similarities and differences between
the Input Base Features and the Input Test Features. This file is a
comma-delimited text file that can be viewed and used as a table in ArcGIS.
This file will contain all similarities and differences between
the in_base_features and the in_test_features. This file is a comma-delimited
text file that can be viewed and used as a table in ArcGIS.
File Compare
How to use File Compare Tool
in ArcToolbox ArcMap ArcGIS??File Compare
Path to access the tool
:
File
Compare Tool, Data Comparison Toolset, Data Management Tools Toolbox
File Compare
Compares two files and returns the comparison results.
1. Input Base File
The Input Base File is
compared with the Input Test File. The Input Base File refers to a file that
you have declared valid. This base file has the correct content and
information.
2. Input Test File
The Input Test File is
compared against the Input Base File. The Input Test File refers to a file that
you have made changes to by editing or compiling new information.
3. File Type (optional)
The type of files being compared.
- ASCII —Compare using ASCII characters. This is the default.
- BINARY —Perform a binary compare.
4. Continue Comparison (optional)
Indicates whether to compare all properties after encountering the first mismatch.
- Unchecked—Stops after encountering the first mismatch. This is the default.
- Checked—Compares other properties after encountering the first mismatch.
5. Output Compare File (optional)
This file will contain all similarities and differences between the Input Base File and the Input Test File. This file is a comma-delimited text file which can be viewed and used as a table in ArcGIS.
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