This routine is a simplified version of the Polygon Processor command. It uses closed polylines that enclose text. Each text label is used as the data value for the enclosing polyline. The text and polyline must have the same layer name and together they define one layer or topology. This command processes multiple layers by overlaying the layers and finding all the sub-areas. For example, one layer could be used for property boundaries with the property name inside the closed polylines. Another layer could be for soil types. This command could then be used to find all of the different areas broken out by property and soil type (Property 1-Soil 1, Property 1-Soil 2, etc.).
There is an option to draw closed polylines for the resulting
sub-areas. You can also label each sub-area with the layer data
values for the area (i.e. Property 1/Soil 1). The program also
generates a report of the sub-areas, including the data values for
each layer, the area and the perimeter. The Report Formatter is
used to choose the fields to include in the report and the report
layout. There is no explicit link to a database, but the Report
Formatter will print and/or save a file of the displayed
information, or export the data to Microsoft® Excel and Microsoft®
Access.
The function prompts you for a selection set containing the closed
polylines and text to be processed. The layer list is formed from
the selection set, and you have to specify the sequence in which
layers will be processed.
Select objects:
choose selection set
Draw resulting polylines
[No/<Yes>]? press
Enter
Draw name labels
[No/<Yes>]? press
Enter
Layer name for resulting polylines
: Property
Select a Layer processing sequence
dialog specify the
sequence
Report
Formatter Options dialog customize as needed
Two-Layer Example:
Two properties (Johnson and Hayes) straddle Soil A, Soil B and Soil
C. Note that some of the Hayes property extends beyond the soil
polygons. If the properties are "cut" against the Soils, portions
of the properties that extend where there are no soil zones will
get a blank designation for the soils layer. This command offers a
quick method of distinguishing every category of property. In our
2-layer example, the text "Soil A", "Soil B" and "Soil C" are in
the same layer as the soil perimeters, and the text "Hayes" and
"Johnson" are in the same layer as the property perimeters. Note
also that "Soil C" is located inside both the soil and property
perimeters. This is OK since it is associated only with the soil
polygon because the text and polygon share the same "soil"
layer.
PROPERTY SOILS Area Perimeter
Hayes 2,713.8 265.12
Hayes SOIL A 80,925.3 1,161.56
Hayes SOIL B 6.9 12.69
Hayes SOIL C 3,960.4 330.70
Johnson SOIL A 2,229.6 229.38
Johnson SOIL B 9,072.0 521.80
Johnson SOIL C 89,665.2 1,276.69
—— Grand Total ——————————
188,573.1 3,797.95
Pulldown Menu Location: GIS Tools
Keyboard Command: layertopo
Prerequisite: None