  | | | Boolean action problems ? - Whys and resolves (maybe) to | Boolean action problems ? - Whys and resolves (maybe) to 2005-07-07 - By Johnny Walker
Back Hello David,
This is a very interesting method and useful with practical purposes on finished and complex or high density objects. A Boolean subtraction simulation
An example is to demonstrate repairs to: among many others. A building structure - where an explosion has damaged part of it A ships ribbing - the same as above A human or animal anatomy part - torn vessels, nerves, muscle tissues. etc.
The idea is to expose the damaged area using the boolean separation process. Once done met up an extracted area with a visual insertion piece depicting the repairing parts.
Determine the area of damage and use a replacement object which defines the repair formation and insert it. The separation process exposes the inside of the object and allows for the new repair to be defined. This helps to quantify and qualify the repair method for effectiveness proposals, time and costs in real terms as well. JW
David <hawksridge@(protected)> wrote:Hello list,
Boolean problems may be eliminated or reduced with the following questions and answers. For your consideration and response.
Questions which required answers: 1): What doe the boolean action do and what happens to an object in the process? 2): Does the pace of workflow have anything to do with the problem?: 3): How to resolve this with answers to the above two questions ?
First, What booleans do: 1): Booleans act on an and change an objects face. 2): An objects meshes must reform to get the face to conform to new angles and an exact (not) similar mesh as its existing body. 3): The process of boolean action involves a lengthy calculation process to exact just how the meshes will attach.
Proposed Resolve: A,B,C A): One resolve is to eliminate item #3. as the problem. Why ? If a calculation is still in process when exacting the boolean operation then the objects future state reference (from calculations) may not be resolved. This defeats the objects reform noted in #2. To check this : read the performance meter found in the task manager (XP) and if the cpu is still occupied then something is still going on in the calculation process. Wait a bit to clear the cpu processing activity before doing the boolean operation .
B): The other is that other workspace actions may occur too soon after the boolean action has been performed which may interfere with some value required to resolve the mesh due to processing and referencing errors. This may be a motherboard or video card processing limitation. Again wait for the computer to cool down.
C): Think about your meshes before doing them. Just what this means may or may not have any value.
I like A and B and (eliminate C for the most part) to resolve or at least minimize the problem.
These are my thoughts which may or may not be correct but I hope shed some light on the subject towards complete resolve. Other suggestions towards this resolve either way will be helpful.
Thanks
David
__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ______ **************************************************************************** ******** This message has been checked for all known viruses by the Cable & Wireless E-mail Virus Protection service, powered by MessageLabs.
To purchase this service, please contact your Cable & Wireless Account Manager. **************************************************************************** ********
__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ______ **************************************************************************** ******** This message has been checked for all known viruses by the Cable & Wireless E-mail Virus Protection service, powered by MessageLabs.
To purchase this service, please contact your Cable & Wireless Account Manager. **************************************************************************** ******** <DIV>Hello David,<BR><BR>This is a very interesting method and useful with practical purposes on finished and complex or high density objects. A Boolean subtraction simulation<BR> <BR>An example is to demonstrate repairs to: among many others. <BR>A building structure - where an explosion has damaged part of it<BR>A ships ribbing - the same as above<BR>A human or animal anatomy part - torn vessels, nerves, muscle tissues. etc.<BR> <BR>The idea is to expose the damaged area using the boolean separation process. Once done met up an extracted area with a visual insertion piece depicting the repairing parts.<BR> <BR>Determine the area of damage and use a replacement object which defines the repair formation and insert it. The separation process exposes the inside of the object and allows for the new repair to be defined. This helps to quantify and qualify the repair method for effectiveness <BR >proposals, time and costs in real terms as well.<BR>JW<BR><BR><BR><B><I>David <hawksridge@(protected)></I></B> wrote: <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER -LEFT: #1010ff 2px solid"> <DIV>Hello list,</DIV> <DIV> </DIV> <DIV>Boolean problems may be eliminated or reduced with the following questions and answers. For your consideration and response. </DIV> <DIV> </DIV> <DIV>Questions which required answers:<BR>1): What doe the boolean action do and what happens to an object in the process?</DIV> <DIV>2): Does the pace of workflow have anything to do with the problem?:</DIV> <DIV>3): How to resolve this with answers to the above two questions ?</DIV> <DIV> </DIV> <DIV>First, What booleans do:</DIV> <DIV>1): Booleans act on an and change an objects face. 2): An objects meshes must reform to get the face to conform to new angles and an exact (not) similar mesh as its existing body. <BR>3): The process of boolean action involves a lengthy calculation process to exact just how the meshes will attach.</DIV> <DIV> </DIV> <DIV>Proposed Resolve: A,B,C<BR>A): One resolve is to eliminate item #3. as the problem. Why ? If a calculation is still in process when exacting the boolean operation then the objects future state reference (from calculations) may not be resolved. This defeats the objects reform noted in #2. To check this : read the performance meter found in the task manager (XP) and if the cpu is still occupied then something is still going on in the calculation process. Wait a bit to clear the cpu processing activity before doing the boolean operation .</DIV> <DIV> </DIV> <DIV>B): The other is that other workspace actions may occur too soon after the boolean action has been performed which may interfere with some value required to resolve the mesh due to processing and referencing errors. This may be a motherboard or video card processing limitation. Again wait for the computer to cool down.</DIV> <DIV> </DIV> <DIV>C): Think about your meshes before doing them. Just what this means may or may not have any value. </DIV> <DIV> </DIV> <DIV>I like A and B and (eliminate C for the most part) to resolve or at least minimize the problem.</DIV> <DIV> </DIV> <DIV>These are my thoughts which may or may not be correct but I hope shed some light on the subject towards complete resolve. Other suggestions towards this resolve either way will be helpful.</DIV> <DIV> </DIV> <DIV>Thanks </DIV> <DIV><BR>David</DIV> <DIV> </DIV> <DIV> </DIV><BR>__ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ _____ __ ____ ___<BR>***************************************************************** ***********<BR>********<BR>This message has been checked for all known viruses by the Cable & Wireless<BR>E-mail Virus Protection service, powered by MessageLabs.<BR><BR>To purchase this service, please contact your Cable & Wireless Account<BR>Manager.<BR>*********************************************** *****************************<BR>********<BR></BLOCKQUOTE></DIV>
<BR> __ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ______<BR> ****************************************************************************<BR> ********<BR> This message has been checked for all known viruses by the Cable & Wireless<BR> E-mail Virus Protection service, powered by MessageLabs.<BR> <BR> To purchase this service, please contact your Cable & Wireless Account<BR> Manager.<BR> ****************************************************************************<BR> ********<BR>
|
|
 |