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Object Data has been a part of AutoCAD Map (in one form or
another) for several years. MapTools V6 includes a number of new Object Data
oriented functions and capabilities. As is the case with All MapTools v6
functions, these work with all versions of AutoCAD Map from V3 (based on
R14) to V7 (based on R16).
PolyTools Maintain Object
Data
Manipulate Linework without loosing
Object Data
Now.you can manipulate
linework (break, join, connect, insert new vertices, create and modify bulge
segments, straighten, reverse, etc.) without loosing the Object Data. In fact,
when you Join or Connect linework with Object Data attached, the new entity
will have Joined Object Data.
Linework Annotation using Object
Data
Create new "linked" Text Labels from
Object Data
This.new function is
incredibly useful for creating Text labels from the contents of Object Data
fields. It offers so many
setup
options you can create practically any
style
of labeling you can think of, directly from Object Data attached to Line
and Polylines.
Text Annotation can be created from Character fields AND
Numeric fields. Using PET, you can even assemble new labels using multiple
Object Data fields and freeform text such as this
waterline
label (assembled from an Integer "Size" field and a Character "material"
field with a " inserted between them).
Labels are created as plain Text
entities using the Layer, Style and Height setting you choose. Each new Text
label is created with an identical copy of the Object Data attached to
the linework. Text can be positioned relative to either end of the linework and
the appropriate Text Justification is always used (it will still look right
even when you change the text height).
Object Data Search and
Replace
PET now include Object Data as
Search and Replace Criteria All
PET
V6 menus include Object Data capability for both Search and Replace
operations. A number of special operations are also available for Object Data
including: *.Search
Character Object Data using Wildcards *.Search Numeric Object Data using
Ranging *.Replace
Character Object Data using Prefixing and Suffixing *.Replace Numeric Data using
Setting, Scaling, Offsetting and Rounding *.Calculate and Store Length, Area
and Start/Insertion Points in Object Data Fields
Combine multiple operations using MapTools
Commander Many Object.Data Search and
Replace operations can be combined and performed as a group using
MapTools Commander. This.example
shows a water distribution map that uses color to distinguish pipe size
and material
(Click
here for a close-up view). The first operation searches for linework based
on its color and sets Object Data for both Pipe Size and Type
(material). Since.PET allows you to Search
based on Any Combination of Properties, the possibilities for setting
Object Data based on Layer, Color, Linetype, Elevation, etc are practically
limitless. To.fully process this example, a
MapTools Commander operation runs PET 12 times (once for each color and Object
Data setting). After all map entities have been set, the linework colors are
all set to Bylayer. Here's a view of the map
after
all changes are complete and the
Object
Data has been set. Next.we run another
MapTools Commander operation to Search for linework based on Object Data
settings. We
change
the Linework Width based on the Object Data Pipe Size and the change the
Linework Color based on the Object Data Pipe Type.(a
close-up view)
New Rubbersheeting
Capabilities
Adding Rubbersheeting
Calibration using GPS Data Adjust V6.can
automatically
create calibration data using Attribute Blocks and Points with Object
Data. Attribute.Blocks are commonly used to
represent map features, such as water valves. In many cases, these blocks
contain at least one attribute to store some form of unique identifier. When
GPS field data is collected for these type features, it can be imported into
AutoCAD Map and stored as Points with Object Data. If the same unique
identifier is entered when collecting the GPS field data, Adjust can
automatically create calibration pairs using Block Attribute data as the
From point and the GPS Point with the same identifier as the To
point.
Convert Points with Object Data to
Attribute Blocks
ODATT. is a
new function in MapTools V6. It creates attribute block representations of
Points that have Object Data attached. A new attribute block is created in your
drawing that contains one Invisible Attribute for each Field in the chosen
Object Data Table. Here's an example of a
Point
with Object Data and the equivalent
Attribute
Block created by ODATT.
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