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
File Name: \lsp\mineutil.arx