2. From AutoCAD to Arcview
Purpose
Display a site plan drawn in AutoCad on a view
drawn in ArcView
Given
Campus site plan drawing based on an assumed
origin with survey monuments
ArcView view of the United States in geographic
coordinates (degrees)
Data sets of wetlands and aquifers in other
coordinate systems
3. From AutoCAD
Given:
Campus plan with assumed coordinate system
Units are in feet
Property line survey monuments are shown in
New York State plane coordinate system
Monument 1
Northing 1,129,290.14 Easting 761,886.75
Monument 25
Northing 1,133,064.73 Easting 758,358.74
4. From AutoCAD
Assumed:
Campus map was in 1927 state plane
coordinates, New York west
Monument northings and eastings are in
feet
5. From AutoCAD
Procedure
Use AutoCAD world coordinate system
Because AutoCAD user coordinate system did not
translate to ArcView
Use AutoCAD “move command”
to move all the drawing elements from assumed
coordinates to northing and easting coordinates
Use AutoCAD “rotate command”
To align drawing to true north and south
6. From AutoCAD
Procedure (continued)
Save AutoCAD drawing
As Campus.DWG
Create and save a “world file” for ArcView
to use when creating a theme of the
Campus map
Open text editor (notepad.exe)
Anticipate bringing the campus map into an
ArcView view already projected to State Plane
1927 New York,west
7. From AutoCAD
If the Campus map is on New York west
and ArcView view is projected to New York
west then the text file that coordinates
between the two is:
0,0 0,0
This one line text file should be saved in the
same folder as the AutoCAD drawing
This file should have the same name as the
AutoCAD drawing and a .wld extension
In our example: Campus.wld
8. In general terms
Select a point with known coordinates
in both the AutoCAD drawing and the
new “shape file”.
The .WLD (world file) will tell Arcview
which point to line up.
The concept: X1,Y1= X2,Y2
The syntax: X1,Y1 X2,Y2
AutoCAD coordinates
State plane
coordinates “new
Shape file”
coordinates
space
9. Coordinate Transformation
.WLD file holds the transformation
information
.WLD file is a text file
.WLD file is in the same folder as the
.DWG file
.WLD file format is:
X,Y<space>newX,newY
10. Example
Locate the AutoCAD drawing of the
campus of Monroe Community College
in Monroe County, New York
STUDENT
STUDENT
LOT D
STUDENT
LOT E
LOT C
STUDENT
A
B
LOT
LOT F
ADMIN/
PARKING
VISITOR
STUDENT
LOT M
LOT K LOT J
STUDENT
LOT H
STUDENT
STUDENT
LOT G
10
20
9
11
12
1
3
2
8
7
21
22
4
6
5
EMPLOYEE
EMPLOYEE
STUDENT
LOT M1
ESL
SPORTS
CENTRE
9M
LOT
Area C
approximately
7 acres
Area B
approximately
12 acres
Area A
approximately
12 acres
25. From AutoCAD to ArcView
The AutoCAD drawing
Is in state plane coordinates
.wld file is in the same folder
ArcView
Placed in state plane projection
Campus.dwg inported into ArcView view
Campus saved as a theme
Theme projected to geographic coordinates
