Monday, June 11, 2012

CATIA Knowledgeware: Using Geometrical Parameters

There are periods when a aspect has to be solid enough to deal with several versions of style functions and/or versions. This would be the situation when you develop begin areas or expert designs that provide the developer a beginning for a complex style. A expert style is crucial if the areas you style always have the same primary functions, but information of those functions differ. The most apparent situation would be a menu that has varying duration, size and size, as well as perhaps having a few gaps whose places or styles might modify where each of the can be motivated by international factors. What happens when you need to modify the geometry of a system or function but don't want to have recurring style functions or you want to prevent a complex shrub structure? You use a geometric parameter of course! This content will move you through the use of these geometric factors to fix this issue.

Note: To be able to reproduce this work out your CATIA program will need to have the Knowledgeware Consultant (KWA) work bench. It will also be an supposition that you know how to quickly create geometric places, factors, treatments and guidelines.

The example described is a easy smooth go twist which will have different go kinds or device spots. It indicates a Flat, Phillips, Hex, Celebrity and a unique swirl appearance to demonstrate the excessive versions that can be designed.

To begin with, it is believed you already have an current aspect designed, but do not have the capability to add much difference to that aspect without a lot of style time or adjustment. The very first factor you will need to add is a varying to lead to the modify you want to create. In the example, a Sequence parameter known as "PROFILE" was designed with several principles (Flat, Phillips, Hex, Torx and Swirl-E-Bob). The different principles of this parameter will decide which draw is used to fill the bend parameter, but let's not get too far prior to ourselves!

The next parameter that needs to be designed is a CURVE parameter. This parameter can be discovered near the end of the parameter record and is enclosed by the other geometric factors such as Exterior, Aircraft, Group, Range and Factor. A geometric parameter is like any other parameter and can be believed of as an clear placeholder of a particular device. Generally, a parameter is not very useful until it has a value specified. In the situation of a geometric parameter, the value or device is a way of geometry; therefore a curve parameter's value can be a draw, spline, polyline or any other way of wire form geometry.

Now that the lead to and the placeholder have been designed, the of the bend parameter need to be designed. These principles will be images in the twist example, but can be anything that can be described as a curve. Five images were designed and each known as according to the information being designed - Immediately, Combination, Hexagon, Celebrity and Swirl. The labeling is done to help you to recognize the information and I would suggest labeling them practically, but is not necessary as each draw has its own exclusive name by standard.

Once the are designed, the bend parameter needs to be booming with the (Sketches) you designed. You will need to change to the Knowledgeware Consultant (KWA) work bench and create a guideline. In the guideline, you will need to create a depending declaration that will generate the bend parameter. The format of a depending declaration in KWA is as follows:

If varying == value

{action}

Else if varying == different value

{another action}

This can be designed upon with extra stacked circumstances, but for simpleness we will only use one situation and one outcome. In the example, the guideline flows as follows:

IF PROFILE == "Flat"
{
ProfilesShape = ProfilesStraight
}

ELSE IF PROFILE == "Phillips"
{
ProfilesShape = ProfilesCross
}

ELSE IF PROFILE == "Hex"
{
ProfilesShape = ProfilesHexagon
}

ELSE IF PROFILE == "Torx"
{
ProfilesShape = ProfilesStar
}

ELSE IF PROFILE == "Swirl-E-Bob"
{
ProfilesShape = ProfilesSwirl
}

To crack this down, we will look at each distinct the first situation.

"PROFILE" is the name of the Sequence parameter that was designed for the lead to.
"==" indicates "is similar to." "<>" can also be used if you are identifying whether something "is NOT equivalent."
"Flat" is one of the five several principles of "PROFILE" that was allocated to decide which draw would be used to assess the bend parameter.Shape" is the name of the bend parameter and "Profiles" is the name of the geometric set that maintains all the geometry, so the name is ProfilesShape.
"Straight" is the name of the draw that refers with the "Flat" twist go kind. It is also in the "Profiles" geometric set, so the name is ProfilesStraight.
Now that the bend parameter is booming, you will find the symbol modified to that of an equation and is willing to be used to develop geometry. In the twist example, it was used as the draw information of a pad which was cut with a rhythm function and those functions were placed into a individual aspect system, with that system being taken out of the primary twist aspect system. Appears to be complex right? You can basically use your curve parameter as the information of a pad, wallet or any variety of aspect or area functions you need to create. This is just one of many methods a valuated curve parameter can be used.

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