WellCAD Basics - Advanced Logic Technology

APPENDIX A - 305
WellCAD. LTH libraries are also used in CoreDesc, Analysis and Percentage Logs
to display for example graphical patterns of lithology composition, minerals or
sedimentary structure. A default library is loaded if a new Lithology Log is created
(see Default Settings below).
To load a new symbol library
� Click the Change button.
� Use the file open dialog box to browse to the folder containing your
symbol libraries and load the desired file. (WellCAD sample libraries can be
found in the …\WellCAD\Dictionaries folder of the installation
directory.)
Using the associated color: When designing a lithology pattern in LithCAD the user
has the possibility to define a solid color independent from the pattern itself. The
solid color can be used instead of the lithology pattern to fill a litho bed if required.
When working on a scale where graphical patterns become hard to distinguish a
solid color fill might be more meaningful. Also, when printing large Borehole
Documents, a solid color fill using the associated color might provide a better
performance. Tick the Use Associated Color option to switch from graphical
pattern to solid color filling.
Hiding the symbol background: It is common practice to superimpose Lithology
Logs showing non-repeated symbols (e.g. lithology accessories) to Lithology Logs
using repeated patterns (e.g. dominant lithology). To get the symbols display
enhanced the user can check the Hide Symbol Background option. Symbols will
no longer be drawn with a transparent background and will cover the information
already in place.
Left: Symbols drawn on top of repeated pattern. Right: Same Symbols drawn on top of repeated pattern with
option to hide the background enabled.
Symbol Scale: Symbols and patterns are created of a fixed size in LithCAD. To
increase or decrease the size of the displayed pattern or symbol without recreating
the library, the user can select a new scale factor from the Symbol Scale drop down
list or simply enter a new scale value. A value of 100% reflects the original size.