Here is the Process Summary
1.Read the entire lab summary through briefly to get a feel for what I’ll be working on.
2.Started again, this time reading more in depth
3.Answered Q1
4.Went to the Labins.org site and saved the bookmark both on my local machine and virtual desktop
5.Clicked on DOQQ
6.Clicked on the 2004 RGB Albers Units:MT MrSID link
7.I looked at all the information on this screen and even see that the agency I work at provided some Metadata for this
8.Click on the Quad Name Locator link
9.Read the info on this page
10. Clicked on the “Florida Quad Map Link” to pull up the map
11. Opened the PDF tools to have easier access to the zoom tools
12. Zoomed in on Escambia county
13. I found the Cantonment quad and saw that the number for it was 5359
14. Went back to the previous web screen where I could click on the “Enter FTP Site” link and did so.
15. Opened up “g53”…. The lab instructions had a typo that said it would be “q53”
16. Created a folder called: “S:\Aerials”
17. Here are the files that I downloaded to S:\Aerials
| s:\aerials\q5359se.sdw |
| s:\aerials\q5359ne.sdw |
| s:\aerials\q5359ne.sid |
| s:\aerials\q5359nw.sdw |
| s:\aerials\q5359nw.sid |
| s:\aerials\q5359se.sid |
| s:\aerials\q5359sw.sdw |
| s:\aerials\q5359sw.sid |
18. Opened ArcMap
19. Dragged one of the aerials to the map and did get the error message that was expected.
20. Pressed OK to continue
21. Notice that the Scale is grayed out since we haven’t told it what the projection is.
22. Looked back at the http://data.labins.org/2003/MappingData/DOQQ/doqq_04_alb_sid.cfm web page to see the Datum and Units
23. Shows as follows:
24.
25. Removed the aerial from the MXD
26. Opened ArcCatalog Pane
27. Navigated to s:\aerials\5359ne.sid and opened its properties
28. Noticed that the Spatial Reference is “Undefined” It might as well say “Unacceptable” because that is how we will treat it
29. Read about the HPGN and HARM relation. This is one of those issues I see at my office when talking to the GIS folks where I was always unclear about what HARN was. This is the reason I am taking these classes is to learn more about things like this.
30. Set the Spatial Reference Property to NAD_1983_HARN_Florida_GDL_Albers (Meters) on each of the 4 files.
31. Created a new MXD
32. Added the four images to the MXD and then zoomed to extent
33. At this level I now DO see a scale set of 1:67,668 for full extent and 1:33,854 for one of the quads
34. Made sure that the cursor coordinates were showing Meters
35. Added the Bing Aerial Map as a Basemap
36. It seems to line up very well with the quads. Roads all line up for example.
37. Answered Question #2
38. Went back to the Labins.org home page.
39. Clicked on the DRG
40. Clicked on the “State Plane - NAD83 - Collars Removed” link
41. Read the info about the DRG and noted the following:
| Projection: | State Plane | |
| Datum: | NAD83 | |
| Units: | Feet | |
| Graphics Type: | TIFF | |
| World File: | TFW | |
| Collar Status: | Removed |
42. Entered the FTP site
43. Answered Question 3
44. I also got this information about the Florida North Zone
45.
47. Downloaded the two files to:
48. S:\aerials\mrg5358.tfw and s:\aerials\mrg5358.tif
49. Set the projection property to be “NAD 1983 StatePlane Florida North FIPS 0903 (US Feet).prj”
50. Added the file to the MXD and select YES to build the pyramids
51. Added a Bing Maps Road basemap to the mxd
52. It looks like the roads are lining up nicely.
53. Closed ArcMap
54. Opened the link to http://www.fgdl.org/metadataexplorer/explorer.jsp and saved it on my home PC as well as virtual lab PC
55. Searched for cntbnd and found several results
56. Downloaded the County Boundaries and unzipped them to “S:\IntroGIS\Projections-Part2\cntbnd_jun11”
57. Opened ArcCatalog
58. Checked the properties on the shapefile
a. Name: cntbnd_jun11
b. Projection: Albers
c. Linear Unit: Meter (1.000000)
d. Geographic Coordinate System: GCS_North_American_1983_HARN
e. Datum: D_North_American_1983_HARN
59. Found the Quad Index and save to S:\IntroGIS\Projections-Part2\qd24
a. Name: qd24
b. Projection: Albers
c. Linear Unit: Meter (1.000000)
d. Geographic Coordinate System: GCS_North_American_1983_HARN
e. Datum: D_North_American_1983_HARN
60. Found and downloaded the data for “FLORIDA DEPARTMENT OF TRANSPORTATION MAJOR ROADS IN FLORIDA (RCI DERIVED) - FEBRUARY 2011” to “S:\IntroGIS\Projections-Part2\majrds_feb11”
a. Name: majrds_feb11
b. Projection: Albers
c. Linear Unit: Meter (1.000000)
d. Geographic Coordinate System: GCS_North_American_1983_HARN
e. Datum: D_North_American_1983_HARN
61. Answered Question #4
62. Looked at the “BALD EAGLE NESTING TERRITORIES - FLORIDA 2009” info from the web site
63. Examined the Full Metadata
64. Answered Question #5
65. Opened up Microsoft Excel
66. Set the column headings to show
| point_id | lat | long | xdegrees | xminutes | xseconds | xcoord | ydegrees | yminutes | yseconds | ycoord |
67. Set up the data as shown in the lab
68. Set the X Coordinate function to be : =-(D2+(E2/60)+(F2/3600))
69. Set the Y Coordinate function to be : =(H2+(I2/60)+(J2/3600))
70. Saved Excel file as S:\IntroGIS\Projections-Part2\tabular.xls
71. Answered Question # 6
72. Opened a new ArcMap document
73. Selected File> Add Data > Add XY Data
74. Set the Coordinate system to be: GCS_WGS_1984
75. Answered Question #7
76. I added the data to the map using the settings listed
77. Clicked OK to continue
78. The points were added to the map
79. Exported it to S:\IntroGIS\Projections-Part2\EagleNests.shp
80. Added a Base map of imagery and changed the symbology to see where the Eagles were located
81. Part 3 – Project Assignment – Created a directory S:\IntroGIS\Projections-Part2\MainAssignment
82. Went to the Labins web site
83. Opened the Florida Quad Map an saw the files I wanted to get were 5258 and 5259
84. Downloaded the following files:
· q5258ne.aux
· q5258ne.sdw
· q5258ne.sid
· q5258nw.aux
· q5258nw.sdw
· q5258nw.sid
· q5258se.aux
· q5258se.sdw
· q5258se.sid
· q5258sw.aux
· q5258sw.sdw
· q5258sw.sid
· q5259ne.aux
· q5259ne.sdw
· q5259ne.sid
· q5259nw.aux
· q5259nw.sdw
· q5259nw.sid
· q5259se.aux
· q5259se.sdw
· q5259se.sid
· q5259sw.aux
· q5259sw.sdw
· q5259sw.sid
85. The details on this data are as follows:
| Projection: | State Plane | |
| Datum: | NAD83 | |
| Units: | Feet | |
| Graphics Type: | MrSID | |
| World File: | sdw | |
| Resolution: | 1-Meter | |
| Color: | "True Color" (not CIR) | |
| | | |
86. Copied the folder for the County Boundary, Major Roads, and Quad Index to S:\IntroGIS\Projections-Part2\MainAssignment
87. Looking at the DOQQ I see they are in State Plane, NAD 83 Feet. My other layers are in Albers with GCS_North_American_1983_HARN. Some Reprojection will be necessary.
88. Opened up ArcMap and used the Toolbox to go to the Projections and Transformations Toolset. Selected Features and used the Project Tool to set it to “NAD_1983_HARN_StatePlane_Florida_North_FIPS_0903_Feet”
89. Set this on all 3 layers (County Boundary, Major Roads, Quad Indexes)
90. Got the Excel file from the R: drive and unzipped it here: S:\IntroGIS\Projections-Part2\MainAssignment\ProjectionsPartII
91. Added the two columns for the ycoord = =(L2+(M2/60)+(N2/3600)) and xcoord as =-(O2+(P2/60)+(Q2/3600))
92. After I pulled in the XY data as GCS_WGS_1984 I exported it to a shapefile before reprojection
93. Here’s my transformation screen for the XY Data:
94.
95. After I did each reprojection, I exported the data to a shapefile in my project directory so that I can work with it more easily.
96. Now created a new MXD and brought together all of the necessary shapefiles
97. Worked on cleaning up the map for a couple of hours
98. Submitted my project to Dropbox and Blog
No comments:
Post a Comment