Transcript Using AutoCad Map 3D to create a shapefile

Using AutoMap 3D to create a
shapefile
Using RAM 148
Daryl Hines
The Source CAD File
•It is your decision whether to make any changes to the layer structure in your
current CAD template.
•The object is to select and attribute only a few elements from your CAD drawing
and export them as a shapefile.
•If placing these features on different layers, renaming layers, or establishing any
other standards that facilitate an eventual export, copy, or save down into this
separate DWG will speed or enhance this process, then you might make these
types of modifications to your CAD workflow.
•Your challenge is to make this process as seamless and easy as possible.
•How you, as CAD operators, get to this point is up to you, as only you know what
will work best within the CAD framework and software you operate with.
•Today is a good time to share your expertise and experience with others.
Considerations before
beginning
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Export to Kentucky Single Zone Coordinate System
Contain only the following:
• Proposed Boundary
• Current Approved Boundary
• Fills
• Permanent Impoundments
• Haul Roads
• Bonding Increment Boundaries (if applicable)
All export features must be closed polygon elements.
For haul roads, the polygon area would be the right of way
edges but if the roads are polylines these could be buffered
into polygons.
Need to exclude non-permitted areas (create donuts).
Create or use template provided for object data table?
Assign Coordinate System

Because if you will be exporting to Ky Single
Zone (ft) the software needs to know your
current coordinate system

ADESETCRDSYS
Assign Coordinate System

ADESETCRDSYS
Assign your Coordinate System
(for this drawing KY83F)

ADESETCRDSYS
Assign your Coordinate System to your drawing
(remember this does not transform the drawing)

ADESETCRDSYS
next
 The
exported features need to be closed
polygons
Closing features


The exported features need to be
closed polygons….
In PROPERTIES are polylines set
to “closed”?
next
 If
there are areas within the permit
boundary that are not permitted then
they need to be excluded
Creating polygon with islands, holes,
or discontinuous polygons


Use PROXYGRAPHICS, GROUP, and
MAPPOLYLINETOPOLYGON
commands
1st Set the PROXYGRAPHICS system
variable to 0 (does not save image
with the drawing; a bounding box is
displayed instead)
Creating polygon with islands, holes,
or discontinuous polygons




Select inner and outer polygons to
group
Use Group command
Name Group
Select polygons
Creating polygon with islands, holes,
or discontinuous polygons

Select the group and then;
MAPPOLYLINETOPOLYGON
Looking back and
moving along
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
Assign current coordinate system (ADESETCRDSYS)
The exported features need to be closed polygons
(PROPERTIES)
If there are areas within the permit boundary that are not
permitted then they need to be excluded (PROXYGRAPHICS,
GROUP, and MAPPOLYLINETOPOLYGON)
 Attributes
need to be assigned. Use
template or create object data table?
 We will look at creating a new one first.
ADEDEFDATA
So, we need to end up with a table that
looks like this within GIS software..
Define Object Data
Command ADEDEFDATA
ADEDEFDATA
Table name is up to you
ADEDEFDATA
Table name is up to you
ADEATTACHDATA
 Now
that we have the object table’s
fields it’s time to select the objects and
attach the table
ADEEDITDATA

At least two ways to
edit object data, to
add permit
information.
ADEEDITDATA
 Select
all of the objects that will be
attributed
ADEDITDATA
In the value box type in the appropriate
information for each field that applies.
Second method is to use
the PROPERTIES
command.
Select object and type in
values.
This is a good way to
attribute many objects at
one time!
Add object data.
Hit the enter key
after each update
RAM 148-
MAPEXPORT

Now that we have attributed the objects
it’s time to export them out as a
shapefile..

1st name it correctly;

example (8605607_NW or 8605607_AM_3)
and .shp extension
MAPEXPORT
2st choose polygon
MAPEXPORT
NAD 83 Kentucky Single Zone US Feet


3rd Coordinate
conversion if
necessary. Type in
KY83F if not already
in KY83F.
4th Treat closed
polylines as
polygons? May be
useful to your
business needs.


Select objects
to export
Several
options;
choose the
one that is
best for you.
Check your work..
Use free ArcGIS Explorer to
check work?

http://www.esri.com/software/arcgis/expl
orer/index.html
ArcGIS Explorer (free)
Add your shapefile
data here
Right mouse click
for “Properties”
Mouse click on map
to open table
Using a template with the
object table



Open map template
Use INSERT command to add your
drawing
Use “locate using Geographic Data”
option
Attach Object Data (supplied
with the template)


Use
ADEATTACHDATA
command
Select objects to
attach
Now you are ready to edit object
data using ADEEDITDATA back in
slide 24…