These should help with the completion of the map in ArcMap.

This page, on making map layouts, may be helpful: http://courses.washington.edu/gis250/lessons/map_layouts/exercise/index.html

  1. You don't need to map any drives (those instructions are specific to the ESRM 250 materials).

  2. Once you have your coordinates in a text file or Excel spreadsheet in this form (where the ellipses indicate additional data columns you might want stored with each point):

    sta,x,y,measured_interior_angle,corrected_interior_angle,...
    1,x1,y1,ma1,ca1,...
    2,x2,y2,ma2,ca2,...
    3,x3,y3,ma3,ca3,...
    4,x4,y4,ma4,ca4,...

    you can create an event layer.

    To create an event layer see this:

    http://courses.washington.edu/gis250/lessons/arcmap_basics/exercise/index.html#add_event_theme

    if your data are stored on a USB thumb drive you will probably need to connect to the drive as shown.

    This event layer should draw in the correct location atop the campus aerial photo.

    Once you have created the event layer you will need to export the event layer to a shapefile or geodatabase feature class in order to use it in the GIS.

    To export the event layer as a regular GIS data source see this:

    http://courses.washington.edu/gis250/lessons/create_f_datasets/exercise/index.html#conv_set_to_shapefile

    you don't need to make a selection as the instructions show, just right click and then Data > Export Data to create a new shapefile.

  3. You will need to create a line and polygon data set. See

    http://courses.washington.edu/gis250/lessons/create_f_datasets/exercise/index.html#create_new_poly_theme

    If you create geodatabase feature classes, their tabular records will automatically contain the fields "shape_area" and "shape_length" which will contain the area (in sq ft) and the length or perimeter (in ft) of each feature. That way you can get the GIS-processed measurements of the area of the traversed area and length of each side easily.

    It will help to set the snapping environment to use the point feature vertices, so that when you create line or polygon features, the vertices of these new features will "snap" to the existing points.

    Also, because we are asking to display the lines with some measurements, it will help to add fields and calculate values for the lines (e.g., I have a field called meas_len that contains the measured lengths of each side. That, with the automatic shape_length field can be used for labeling the sides.

    I added a field to the polygon table, area_ac to contain the area in acres, also for display of a label in the center of the polygon.


  4. Finally, once you have created the point, line, and polygon data, you will create two maps. In the first map we are asking for you to display measured data and in the second, corrected data, or data calculated from the GIS.

    For example, to display the points with labels as I have in the example (http://gis.washington.edu/phurvitz/courses/esrm304/lectures/2009/Hurvitz/example/images/map1.gif), the label expression was

    [sta] & vbNewLine & round([x],1) & vbNewLine & round([y],1) & vbNewLine & [measured_interior_angle]

    which translates to "display the station number, then a return (to display on the next line), then the X value rounded to 1 decimal place, then another return, then the Y value rounded to 1 decimal place, then another return, then the measured interior angle." We did not specifically say to show only 1 decimal place of precision, but it makes the map less crowded.

    This shows how to label points, and labeling the polygon or lines is about identical:

    http://courses.washington.edu/gis250/lessons/arcmap_basics/exercise/index.html#label_cities

    Following what you see in the labeling instructions above, you can click the "Expression" button to enter similar code in the sample label expression.

    For the sides, an expression like this shows the measured lengths:

    round([meas_len], 1)

    and this shows lengths calculated automatically by the GIS:

    round( [SHAPE_Length] , 1)

    and this shows the area of the survey course at the center of the polygon:

    round([area_ac],3) & " ac"