- Then from button menu, click on Draw Point Tool  (it’s a dot at right edge of buttons).

- You will use the Draw Point Tool to a add a few dots  to this theme,

Before you click to place these dots, you should know what building each dot represents.    Place each dot roughly in center of building.

                Carol put dots on for Weyerhaouser, Hungry Mind, and 77 Mac.  

Refer to your fieldwork--sketch map.

                *If necessary, you can enlarge the view window  or

                                enlarge the area of interest using zoom tool (+).

- When you are done placing dots, go to top menu and click on

 Theme – Stop Editing

  and Save your edits.

Having “digitized” the dot locations, we now focus on the Table window.

   - First, make the Table window active.  Do so by clicking on

               the top of  Attributes of  Mybuildings.shp table.

                - Do you remember seeing that a Theme and its Table are linked in ArcView?

__ Be sure that the theme Mybuildings.shp is active (raised up).

__Click on a record in the Table and review what happens in the View.

__Definitely, click on each of your newly added points and see what happens

                in the View.

   - Carol’s original points have id codes, but your new points do not.  Next, you will enter

       id  codes for your new points.   From top menu, click on

Table – Start Editing

Then, use the Edit tool (middle, I with arrow)  to enter  a code number in

   place of  the zeros for your recently digitized points.

            -  Notice the field called "owner-type". 

      __ Finish filling in this column for your recently digitized points.

   - Your next task is to add one new field to this table.  From top menu, click on

                                Edit – Add Field

                                In the Field Definition dialog window, deal with two entries:

                                                Name:   a word or short phrase that briefly describes your field

                                                Type:   Choose Number if the data is a quantity

                OR

                                                 Choose String  from the arrow pull down if the data is

 a type (nominal quality or code name),  not a quantity.

Click OK after you’ve filled in Name and Type.

     - Next, use the Edit tool  (middle, I with arrow)  to enter information into your

   new field    --either a  number  or a  type  for each newly digitized point.

                                          --optional:  entering data for Carol's points

     - Finally, from top menu, click on Table – Stop Editing   and Save edits.

Click on the View so it is active.

- The Identify tool looks like a lower case Ai@ in a circle.  You can only use it on the

    active theme.  To make a theme active, click on the name so its gray box raises up.

- Make “Mybuildings.shp” theme active, and click on the identify tool.

Click on each of your newly added points, and see what information appears. 

Your fieldwork and data gathering can serve a problem-solving purpose.

We'd like you to do a query about the buildings theme.

Building a query is a fundamental skill.

      Purpose of querying:   You want to select features in a theme that meet special criteria.       For example, you might want to select all buildings with a particular “use”  or  you might       want to select all buildings that equal or exceed a particular numerical value. 

Be sure that the theme that you want to query is active.

Try a query for the Mybuildings.shp theme.    Ask for help if needed.

__ First, clear any selected points in the active theme. 

Use the        Clear selected features tool   so no points are selected as yellow.

__ Start a query by clicking on the Hammer with ? (query tool).

__ [owner-type} = "college"  and say New Set

__ Notice that the appropriate points turn yellow on both view and Table!

After doing a query, we often make the set of selected features into a new theme!

                Suppose Carol wants all of the "college" buildings" to be a separate theme.

                From the top menu, choose

Theme – Convert to Shapefile  to create a new, separate theme

 for the selected features.

You name the new theme and say yes to adding it to the View.

Can you think of your own query?

                First, be sure to clear any previous selections! (Clear selected features tool)

Do the query.

                Use the query's selected features to create a new shapefile. 

                                (Theme-Convert to Shapefile)

Seeing the spatial distribution of your “field” data also may be enlightening for making  decisions.

                Your goal is to display one field as categories where each category looks different.

You can use the Legend Editor to display different categories.

Do you remember how to make the Legend Editor appear?  Just ask; we'll help.

Are you able to classify a “number” field (quantitative data)?

                                                HINT:  Use “graduated color or graduated symbol”.

OR  Are you able to classify a “quality”  field (nominal data

        which is not numerical)?

                                                 HINT:  Use “unique value”.

When you are done working with this project, exit it carefully:    

File – Save Project AS    and under file name, put your name in place of “student”

                                                For example,  Henry-p1.apr

            Also, be sure to record what you named the file  AND where you put it.                 

                        _____________________          __________________________

                        We'd be happy to help with this, if it's new to you.

            Does everyone know what the extension  .apr  stands for?

                                    _______________________________________________

Reflections/questions:  for discussion

  About ArcView – new or interesting insights?

  About "flying the plane yourself" -- what would you like to know that has not been reveal yet?