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Volume 22, Number 11, December 2006

2006/2007 Training Schedule... page 1124th Annual Mintec Seminar... page 12

Current Affairs:How to Use Filtering in Drillole Viewsin MineSight v.3.60... page 2

Mintec Directory... page 5Tips from Tech Support:

MineSight Operations Tips andTricks... page 7

Trade Shows and Seminars... page 12Web-based Training... page 11

Inside This Issue:

In MineSight 3-D v.3.60 the method you use to lter items in Drillhole Views was reworked to be moreversatile. You can now lter on multiple drillhole items and have multiple conditions by using Python-likeexpressions.

Item ltering is available on both the Drillhole View Properties Intervals and Geotech tabs. To use lter -ing, toggle ON the Filtering checkbox the ltering expression to be applied. Once the ltering expression hasbeen written and the Filtering option toggled ON, the changes will take effect after clicking on Apply .

How to Use Filtering in Drillhole Views in MineSight 3-D v.3.60

(continued on page 3)Figure 1

Current Affairs

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MineSight Foreground i n t h e

(How to Use Filtering in Drillhole Views in MineSight 3-D v.3.60 continued from page 2)

The Drillhole Properties | Intervals tab dialog is shown in Figure 1 with the Item Filtering section outlinedin red. To the right, two drillholes are displayed that have item ltering applied.

Figure 2

The Drillhole Properties | Geotech tab dialog is shown in Figure 2, on the left, and the two Item Filtering sections on this dialog are outlined in red. A ltered drillhole view, using the criteria shown in the dialog, isdisplayed to the right of the dialog and a non- ltered view of the same drillhole is shown in the picture to thefar right.

Item ltering is accomplished by applying the Boolean true/false results of the lter expression entered inthe lter box. The lter expression is written using operators, functions, constants, and items from the Drill-hole View in Python-like syntax.

In order to reference a drillhole item in the ltering expression, the proper syntax is to surround the itemname with $( ) . For example, item CU is referenced as $(CU) . The name must be a valid item name in theDrillhole View .

The operators used to form the expression are similar to those used in Python. In addition, functions fromthe Python math module can be used in the expression.

After applying item lter(s), only the data that passes the ltering criteria will be displayed in the DrillholeView as shown.

(continued on page 4)

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December 20064

(How to Use Filtering in Drillhole Views in MineSight 3-D v.3.60 continued from page 3)

Display with no fltering applied. Filtering used in this case: Filtering used in this case:

Figure 3

As illustrated in Figure 3, from L - R, the same two drillholes are shown using different ltering criteria. Inall three cases, the intervals are color-coded by CU cutoffs. The interval values shown on the left side of thedrillhole trace are the CU values and the values on the right side are ROCK values. In the drillhole view shownon the left, no ltering is applied and in that case, all of the intervals in the two drillholes are displayed. Thedrillhole view in the middle is ltered to display only those intervals with a CU value greater than .5. Finally,in the drillhole view on the right, the drillholes are ltered to display only those intervals that have both CUvalues greater than .5 and ROCK values equal to 2.

(continued on page 5)

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(How to Use Filtering in Drillhole Views in MineSight 3-D v.3.60 continued from page 4)

The following is a list of operators and functions that can be used to build ltering expressions inMineSight 3-D v.3.60:

Operators ExampleMathematical:

+ addition $(CU) + $(CU2) > 3.0- subtraction $(CU) - $(CU2) < 0* multiplication $(CU) * 0.03 > 0.15** exponential $(XTR1) ** 2 != $(XTR2)/ division $(RAW)/0.50 > $(AG2)// oor division ($CU)//1) != 3% modulus $(ROCK)%10 = 0 displays values equal to 0, 10, 20...

Comparison:< strictly less than $(CU) < 3.0 3.0>= greater than or equal $(CU2) >= 3.0= equal $(CU2) = $(CU)!= not equal $(CU2) != $(CU) not equal (antiquated)

Logical:or x or y $(MO) > 0.02 or $(CU) > 2.1and x and y $(cu) > 0 and $(mo) != 0.050not not x: if x is False, then True, else

Falsenot $(LNGTH)

Membership in Sequence:in is a member in a sequence $(IROCK) in (1,3,5)not in is not a member in a sequence $(ROCK) not in (soft, med)

Indexing:X[i] A character at position i in an

alpha-numeric value (positions arecounted from 0)

$(RTYPE)[4] = 1The string ROCK1 will s atisfy the above condition

Slicing:X[i:j] A substring of j characters

starting at position i in an alpha-numeric value (positions arecounted from 0)

$(RTYPE)(0:4) = ROCK Any s tr ing s tar ting wi th ROCK wi ll sat isfy the abovecondition

(continued on page 6)

Functions calls from Python math modu le:ceil(x) Return the ceiling of x as a oat.

This is t he smallestinteger value >=x.

ceil ($(CU)) = 3

fabs(x) Return the absolute value of the oatx.

fabs($(PITM)) > 3 and fabs($(PITM)) < 3.5

oor(x) Return the oor of x as a oat.This is t he largest integer value

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MineSight Foreground i n t h e

December 20066

Acc oun tin g/Bi ll ing Diane Hanna Aida Molina

Myrna Azares acct@mintec.om

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Contracts and Shirley DeslauriersProposals Ida Cole Laurie Goble

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Arr angem ents

Newsletter Editor Robert Ashbaugh

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Functions calls from Python math module:hypot(x,y) Return the Euclidean distance,

sqrt (x*x + y*y).log(x) The natural logarithm of x.l og10(x) The b ase 10 l ogar it hm of x .modf (x) Ret ur n t he f ract ion al and int eger

parts of x. Both results carry t hesign of x. The integer part i s returnedas real.

pow(x ,y ) Return x**y (x to the power of y).sqrt(x) Return the square root of x.

Trigonometric function calls:acos (x) arc cosine (measured in radians) of x.asi n(x ) ar c s ine (m eas ur ed i n r adi ans) of x.atan(x) arc tangent (measured in radians) of x.atan2(y/x) arc tangent (measured in radians) of

y/x.cos(x) cosine of x (measured in radians).cosh(x) hyberbolic cosine of x.sin(x) sine of x (measured in radians).sinh(x) hyberbolic sine of x.tan(x) tangent of x (measured in radians).tanh(x) hyberbolic tangent of x.

(How to Use Filtering in Drillhole Views in MineSight 3-D v.3.60 continued from page 5)