Wiki Page Content

Show Topo Charts

Objective

The Show Topo Chart function displays topo charts based upon the topography information recorded for the panels.

Processing

The first page displays the list of surveys in the database that have topography data. The column labeled Number of Panels with Topo Data excludes panels that are used as a primary datum. If topo data was collected for B, C, D... panels, these panels are included in the count. If no topography data was collected, the survey will not be listed.

Hyperlinks include: Area (see ShowMaps).

To continue, select a survey by clicking on the Ref Nbr of a survey.

The second page displays the topo chart or charts for the survey selected.

The recorder may have customized the chart with the Customized Topo Charts function. In this case the topo chart will have been separated or broken into smaller charts. Surveys with multiple topo charts with a common origin will have an overview topo chart. If present, the overview topo chart will be the first topo chart displayed. Overview charts show cluster numbers only for datum and secondary datums. All other clusters are indicated by an "X" character.

One customization option is to shrink the length of a bearing line. If this has been done, a box with the actual length will appear over the bearing line. A second option is to split the topo charts into multiple parts. If this has been done, the secondary datum points used to split the chart will be enclosed in "()" characters.

Bearing lines connect each cluster to its datum point. In some cases, only one panel per cluster will have topography data recorded - other panels of the same cluster are assumed to be nearby and easily located. In other cases, all panels will have topography data recorded -- in these cases the A panel of the cluster is frequently used as a datum point for the additional panels of the cluster.

The upper left hand corner of the topo chart has a legend showing the grid scale and the east to west, north to south dimensions in meters. The presence of shrunken grid lines on the chart do not effect the dimension calculations. The dimensions are not made smaller because there is a shrunken grid line.

The lower left hand corner displays the icons used to indicate the facing and inclination of the panels. A filled circle without a pointer indicates the panel inclination is less than or equal to 15 degrees or greater than 165 degrees (cave ceiling or overhang). A semi-circle with a direction pointer indicates the panel inclination is between 16 and 30 degrees inclusive or 150 to 165 degrees inclusive. A chord with a pointer indicates the inclination is between 31 and 149 degrees inclusive.

If panel facing and inclination data has been included, icons will appear around the cluster number. Darker colored indicators indicate the dominate "A" panel, lighter colored indicators indicate the "B", "C", etc. panels. Facing icons are not shown on overview charts.

Hyperlinks include: Cluster (see ElementCaptions).

The topo chart(s) is followed by a table displaying the panel topography detail including Cluster Number/Panel Letter, Datum, Distance from Datum in meters, Bearing from Datum in degrees, Elevation change from Datum in degrees, panel Facing in degrees, panel Inclination in degrees, panel Width in meters, panel Height in meters, Total Number of Elements and distribution of elements by rock art class.

Clicking on a rock art class in the table heading will redisplay the page with the clusters containing elements of the selected rock art class highlighted in red and enclosed within "=" characters. Click on the same rock class to redisplay the page without highlights or click a different rock art class to redisplay the page with the new rock art class highlighted.

Hyperlinks include: Cluster (see ElementCaptions).

Buttons

  • Change Survey: takes you to the first page displaying a list of surveys.

  • Menu: takes you to the Main menu.

ShowTopoCharts (last edited 2011-11-04 20:00:12 by RogerHaase)

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