AUGI (Autodesk User Group International)

AUGI에서 오토데스크사의 제품 정보 및 사용시 어려웠던 점 등을 포럼을 통해서

http://www.augi.com/

Autodesk Navisworks Animated Construction

Showcase workflow with Revit. 

Versari 에 대해서 알아볼까요?

호주와 뉴질랜드에서 BIM에 관한 Standard를 

http://www.anzrs.org/blog/ 

Roof Framing extensions for Autodesk subscribe users.

http://www.youtube.com/<wbr />watch?v=YMJoYcBhhRc

아직 우리나라 가구회사나 디자인 회사에서 레빗 파일을 현실화하여 사용하는 것은 드문 일이다.

삼성, LG, 현대 등등 세계에서도 알아주는 일등급 전자회사들이 우리나라를 기원으로 하고 있지만, 아직까지 REVIT 패밀리 라이버리 하나 얻기 힘든 것이 실정이다. 

2, 3차 산업이 주산업이 아닌 호주지만, 전등부터 문짝까지 자국의 생산품들의 REVIT 패밀리를 소개하고 있다.

Revit을 어느정도 사용한 고급 유저의 경우 패밀리 파일을 직접 만들어서 사용하게 된다.

Valid Formula Syntax and Abbreviations

Formulas support the following arithmetic operations: addition, subtraction, multiplication, division,exponentiation, logarithms, and square roots. Formulas also support the following trigonometric functions:

sine, cosine, tangent, arcsine, arccosine, and arctangent.

The valid formula abbreviations for arithmetic operations and trigonometric functions are

■ Addition— +

■ Subtraction— -

■ Multiplication—*

■ Division—/

■ Exponentiation—^: x^y, x raised to the power of y

■ Logarithm—log

■ Square root—sqrt: sqrt(16)

■ Sine—sin

■ Cosine—cos

■ Tangent—tan

■ Arcsine—asin

■ Arccosine—acos

■ Arctangent—atan

■ e raised to an x power—exp

■ Absolute Value—abs

You can enter integers, decimals, and fractional values in formulas, using normal mathematical syntax, as shown in the examples below:

■ Length = Height + Width + sqrt(Height*Width)

■ Length = Wall 1 (11000mm)+ Wall 2 (15000mm)

■ Area = Length (500mm) * Width (300mm)

■ Volume = Length (500mm) * Width (300mm) * Height (800 mm)

■ Width = 100m * cos(angle)

■ x = 2*abs(a) + abs(b/2)

■ ArrayNum = Length/Spacing

Parameter names in formulas are case sensitive. For example, if a parameter name begins with a capital letter, such as Width, you must enter it in the formula with an initial capital letter. If you enter it in a formula using lower-case letters instead, for example, width * 2, the software will not recognize the formula.

Conditional Statements in Formulas

You can use conditional statements in formulas to define actions in a family that depend on the state of other parameters. With conditional statements, the software enters values for a parameter based on whether a specified condition is satisfied. Conditional statements are useful in certain circumstances; however, they make families more complex and should be used only when necessary.

For most type parameters, conditional statements are unnecessary because the type parameter itself is like a conditional statement: If this is the type, then set this parameter to a specified value. Instance parameters are a more productive place to use conditional statements, particularly when they are used to set a parameter that does not vary continuously.

Syntax for Conditional Statements

A conditional statement uses this structure: IF (<condition>, <result-if-true>, <result-if-false>) This means that the values entered for the parameter depend on whether the condition is satisfied (true) or not satisfied (false). If the condition is true, the software returns the true value. If the condition is false, it returns the false value.

Conditional statements can contain numeric values, numeric parameter names, and Yes/No parameters. You can use the following comparisons in a condition: <, >, =. You can also use Boolean operators with a conditional statement: AND, OR, NOT. Currently, <= and >= are not implemented. To express such a comparison, you can use a logical NOT. For example, a<=b can be entered as NOT(a>b).

The following are sample formulas that use conditional statements.

Simple IF: =IF (Length < 3000mm, 200mm, 300mm)

IF with a text parameter: =IF (Length > 35', “String1”, “String2”)

IF with logical AND: =IF ( AND (x = 1 , y = 2), 8 , 3 )

IF with logical OR: =IF ( OR ( A = 1 , B = 3 ) , 8 , 3 )

Embedded IF statements: =IF ( Length < 35' , 2' 6" , IF ( Length < 45' , 3' , IF ( Length < 55' , 5' , 8' ) ) )

IF with Yes/No condition: =Length > 40 (Note that both the condition and the results are implied.)

Examples of Conditional Statement Usage

Typical uses for conditional statements in formulas include calculating array values and controlling an element’s visibility based on a parameter value. For example, you can use conditional statements to

■ Prevent an array parameter from taking a value less than 2.

In Revit Architecture, arrays can only have an integer value of 2 or greater. In some situations, it may be useful to create a conditional formula that maintains an array parameter of 2 even if the calculated value is 1 or 0. With such a formula, if the calculated array value is 2 or greater, the formula retains the value. However, if the calculated value is 1 or 0, the formula changes the value to 2. 

Formula: Array number = IF (Arrayparam < 2, 2, Arrayparam)

■ Make muntins visible only when the number of window lights is greater than 1.

For example, if you have a Lights parameter that you want to use to control the visibility of muntin geometry, you can create a Yes/No parameter like MuntinVis, and assign it to the Visible parameter in the Element Properties dialog of the muntin geometry. Because the MuntinVis parameter is a Yes/No (or Boolean) operation, both the condition (IF) and the results are implied. In this example, when the condition is met (true), the MuntinVis parameter value is selected, and the muntin geometry is visible.

Conversely, when the condition is not met (false), the MuntinVis parameter is cleared, and the muntin geometry is not visible. 

Formula: MuntinVis = Lights > 1

BIM의 개념을 확실하게 정리한 웹사이트

Building Information Modeling Case Study from the Marshall Space Flight Center

REVIT을 건축디자인에만 사용하는 것 아니였나? REVIT은 어디까지나 디자인을 하고 설계를 하는 일종의 툴 (Tool)일 뿐이다. 즉, 어떻게 활용하고 어디에 사용해야 하는지에 대한 특정한 룰 (Rule)이라는 생각은 버리자. 아래의 리스트는 REVIT을 사용하여 영화 3차원 현장을 작업한 영화들이다. 영화도 보면서 어떻게 레빗 모델링이 영화에 적용되었는지 찾아보자.

1. Fantastic Four: Rise of the Silver Surfer

http://www.youtube.com/<wbr />watch?v=74oUIzqhwVQ

2. i, Robot

http://www.youtube.com/<wbr />watch?v=s0f3JeDVeEo

3. Watchmen

http://www.youtube.com/<wbr />watch?v=R3orQKBxiEg