Presentation is loading. Please wait.

Presentation is loading. Please wait.

From AutoCAD to ArcView. From AutoCAD to Arcview Purpose Display a site plan drawn in AutoCad on a view drawn in ArcView Given Campus site plan drawing.

Similar presentations


Presentation on theme: "From AutoCAD to ArcView. From AutoCAD to Arcview Purpose Display a site plan drawn in AutoCad on a view drawn in ArcView Given Campus site plan drawing."— Presentation transcript:

1 From AutoCAD to ArcView

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: X 1,Y 1 = X 2,Y 2 The syntax: X 1,Y 1 X 2,Y 2 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 newX,newY

10 Example Locate the AutoCAD drawing of the campus of Monroe Community College in Monroe County, New York

11

12 from AutoCAD

13 Check assumed coordinate system origin

14 from AutoCAD 0,0 is in the lower left corner of the map

15 from AutoCAD Zoom in on monument 25 in lower left

16 from AutoCAD Object snap helps to get right on the point

17 from AutoCAD Use zoom extents to find the drawing after the move

18 from AutoCAD Check coordinates to show move

19 from AutoCAD Rotate using reference angle North straight up

20 from AutoCAD Zoom in to monument 1 for reference angle end point

21 Pick monument 1 as second point of reference angle Type in coordinates of monument 1 as the “new angle”

22 from AutoCAD Zoom extents to find drawing rotated to true north Save

23 WARNING For many ArcView users the most difficult aspect of working with data in a GIS environment is the concept of map projections.

24 theme to geographic coordinates

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

26 theme to geographic coordinates

27 Turn on extentions

28 theme to geographic coordinates For CAD Reader

29 theme to geographic coordinates And Projection Utility Wizard

30 theme to geographic coordinates

31 Start a new view

32 Theme to geographic coordinates Add the drawing as a theme

33 theme to geographic coordinates

34 Save the theme As a shape file Convert the saved shape file From state plane coordinates To geographic coordinates

35 theme to geographic coordinates Start the projection utility from the “File” on the menu bar

36 theme to geographic coordinates Sometimes it is hard to remember where the shape file was saved

37 theme to geographic coordinates Specify the state plane coordinates

38 theme to geographic coordinates Yes to save the coordinate info

39 theme to geographic coordinates For the new system, click the geographic radio button

40 theme to geographic coordinates Select no

41 theme to geographic coordinates Make a note of the file location Pick a better file name

42 theme to geographic coordinates

43 Display the new theme over top of the old theme

44 theme to geographic coordinates Or the new theme can be added the regular way

45 From AutoCAD to Arcview To demonstrate Display Arcview view of the counties of United States Add the campus theme

46 ArcView Add theme of campus on geographic coordinates

47 ArcView Select campus map in geographic coordinates

48 Arcview Theme needs to be clicked on

49 Arcview Campus in geographic coordinates Next add other themes in geographic coordinates

50 Arcview Check the values of the geographic coordinates

51 Arcview Add the quadrangle wetlands, NY state aquifers, 50 states, and world themes

52 Arcview Turn the themes on after reordering

53 Arcview Campus theme should be on top

54 Arcview The new world order

55 Arcview Click the themes on Notice wetlands indicated on campus

56 Arcview Use the zoom out button

57 Arcview Aquifers Wetlands quad

58 Arcview Zoom back

59 Arcview Zoom back

60 Arcview Zoom back

61 Arcview Zoom back

62 Arcview Change the coordinate system from geographic properties

63 Arcview projection

64 Arcview Change projections

65 Arcview Scroll down

66 Arcview Scroll down to the world from space

67 Arcview Nice view, and it still contains the campus map

68 Arcview Zoom way in

69 Arcview And check the coordinaates

70 Arcview Change units to feet

71 Arcview And change coordinates to state plane 1927 New York, west

72 Arcview Check coordinates Change units from meters to feet

73 AutoCAD to ArcView Campus drawing in ArcView

74 If none of this works.... Check to see if you turned on the extensions

75 The end


Download ppt "From AutoCAD to ArcView. From AutoCAD to Arcview Purpose Display a site plan drawn in AutoCad on a view drawn in ArcView Given Campus site plan drawing."

Similar presentations


Ads by Google