WellCAD Basics - Advanced Logic Technology

460 - APPENDIX A
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Grid:
You can edit the maximum (dip angle) scale for the diagram in order to spread out
points accumulating around the center of the diagram; the minimum scale is always
set to zero. In order to display radial and circular grid lines and grid labels check the
corresponding option and adjust the frequencies (step). The font style for the grid
labels can be changed by clicking on the Font button.
Contours: Allows the display of the data as density plot using contour lines or color
palettes to indicate local maxima and minima. To select contouring algorithm and
counting options click the Settings button to open the Contouring dialog box.
Method:
If the Schmidt option has been selected a counting circle comprising one percent of
the total area is used to make density estimates at the nodes of a regular grid. The
grid is contoured in in units of percent per one percent area.
Using the Kamb algorithm (default) the contours represent standard deviations away
from the expected density of a random sample drawn from a standard distribution.
While contours derived from the Schmidt algorithm depend strongly on the sample
size, Kamb’s algorithm reduces the effect of sample size on contours allowing
comparison of data sets with different sample sizes.
Display:
For contour line display check the Contours options and choose the preferred line
thickness.
For a color fill derived from a selected color palette (click on Palette to design a
new color scheme) check this option.
Options:
Smoothing: Different weighting functions can be applied when counting the data.