### Author Topic: Truss Calculators  (Read 355531 times)

0 Members and 1 Guest are viewing this topic.

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1000 on: June 17, 2021, 11:14:08 PM »
Version 2.8.6 - 06.18.2021
- Added a "Regen" context menu item for all rafter roof assemblies (eg. Gable, Hip, Shed etc...)
- Streamlined and improved the organization and naming convention of hip rafter roofs.

I originally coded the initial hip rafter roof module in Dec. of 2015, I then augmented this module with the asymmetric logic in May of 2019.  As I was reviewing the code to determine how best to implement the Medeek Estimator with this type of roof it occurred to me that the symmetric variant of a hip roof is just a special case within the more complicated set of asymmetric roofs.  I then condensed my code to only use the newer asymmetric roof modules when creating the geometry for the symmetric case (should have done it this way from the start).

Less code, simplified, efficient and now more organized.  Also my statistical code will be the same regardless of the hip roof geometry so that just decreased my work by a half.  Sometimes it pays to work smart and not hard.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1001 on: June 18, 2021, 02:42:46 PM »
Version 2.8.6b - 06.18.2021
- Streamlined and improved the organization and naming convention of gable rafter roofs.
- Enabled subtractive geometry for hip and gable rafter roofs.

Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1002 on: June 18, 2021, 09:39:48 PM »
Tutorial 20: Custom and Subtractive Geometry (17:18 min.)

https://youtu.be/AnCOlUnGKyU
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1003 on: June 22, 2021, 07:52:20 PM »
First look at the Medeek Estimator giving rafter lengths for gable and hip roofs:

Even a small hip roof has a lot of parts and pieces, I couldn't even fit the list of jack rafters within one screen shot.  The lengths on the hip rafters may not be exact but they should be within about an inch, so for estimating purposes that should be adequate for now.

There is still a lot more data that can be reported on (eg. soffit, fascia, sub-fascia, gutter, outlookers etc...)

*Note:  If you trim one of the rafters, it will give you the longest member length within that group for now, I still haven't figured out what I am going to do when a rafter is cut into two or more pieces.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1004 on: June 23, 2021, 12:31:39 AM »
First look at "Rafter Labels" for a gable roof.  Note that the dimensions are given in inches rather than feet:

Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1005 on: June 23, 2021, 10:43:02 AM »
First look at a hip roof with rafter labels applied:

Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1006 on: June 23, 2021, 02:18:51 PM »
Version 2.8.7 - 06.23.2021
- Added stats (roof cladding, sheathing, drip edge, hip & ridge, rafters) for gable and hip rafter roofs which can be analyzed within the Medeek Estimator (Wall Extension) module.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1007 on: June 23, 2021, 06:15:40 PM »
About two years ago I brought the asymmetric gable and hip roofs online and there was quite a bit discussion at this time about the positioning of the ridge board when the pitches are asymmetrical:

https://forums.sketchup.com/t/medeek-truss/16452/846

As I'm looking at this now my feeling is that the correct way to handle this is NOT to have the ridge board center up on the sheathing, so essentially I think I have it WRONG, or at least not configured the way I think it should be.

I will be giving this some more thought, I really hate for the plugin to be incorrect or wrong, it just doesn't sit well with me.  Maybe I'm not entirely wrong with the way I currently have it but there are two ways to handle this situation, and I am now liking the other way a bit more.

To clarify I've shown the two possible framing configurations for an asymmetric gable below:

Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1008 on: June 24, 2021, 08:12:32 PM »
Version 2.8.8 - 06.24.2021
- Added a "Regen" context menu item for all I-joist and lumber floor assemblies.
- Enabled subtractive geometry for I-joist and lumber floors.
- Enabled the "Edit Floor Assembly" function for lumber floors.

View model here:

https://3dwarehouse.sketchup.com/model/5de5b38f-9265-48ea-90e0-4e39a04592f5/Subtraction-Floor-Framing
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1009 on: June 26, 2021, 12:12:43 AM »
Version 2.8.9 - 06.26.2021
- Enabled subtractive and custom geometry for floor truss assemblies.
- Enabled the edit function for floor truss assemblies.

Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1010 on: June 26, 2021, 10:21:12 PM »
The last year or so I have been focusing a lot of my efforts on the Wall plugin even though I have released many updates for the other plugins along the way.

That being said I am still surprised out how far behind I am with a lot of stuff within the Truss plugin.  For one thing the various (truss) hip sets are still not parametric nor do they have labels enabled.  There is still an incredible amount of work that needs to be done with this extension/plugin and that is in addition to the complex roof module and all that it entails.

The last few days you may have noticed that I have been doing a little house cleaning and enabling edit menus and subtractive geometry for the various assemblies within the plugin.  The list of incomplete truss and rafters types is still large so much work remains to be done.

The current TODO list is the following:

1.) The valley set module has not been updated in many months/years and needs a parametric update as well as other options such as a rafter framed option (California Valley Set).

2.) The floor truss module needs an option to disable the chase or even better the ability to enable any number of chases.

3.) Hip sets (trusses) should also be able to be asymmetric, which is actually a huge undertaking to program.

4.) The complex roof module is begging for my attention and really needs the rafter framing module completed.

5.) A lot of the more exotic truss types have yet to be completed and advanced options and parametrics are still waiting.

6.)  The dormer module is still mostly incomplete by anyone's standards.

7.) Subtractive and additive geometry needs to be enabled for all roof and floor assemblies.

8.) Stats and integration with the Medeek Estimator needs to be setup for every roof, dormer and floor assembly.

9.)  The floor truss module needs an option for configurations other than the Mod Warren.

10.)  I would like to add TriForce's Open Joist to the floor module.

11.)  Labels and other annotations (framing callouts) need to be enabled for every assembly, some are done but many are not.

12.) Soffit and Fascia options need to be enabled for truss hip sets and all other applicable assemblies.

13.)  A gypsum ceiling option might be nice for floor assemblies.

14.)  3D materials as defined in the Wall plugin need to be made available in the Truss plugin for gable wall cladding.

15.)  I have a lot of people asking for language options, for all the plugins, but mostly for the Truss plugin.

16.)  Ridge cap option for valley sets.

17.)  Many of the current menus can be switch to more attractive HTML menus and should be switched.

18.)  More parameters and defaults need to be exposed in the global settings.  Notice how much more expansive the Wall plugin's global settings is in comparison.  I could easily spend two or three months just updating this part of the plugin.

This list is by no means exhaustive but it does highlight the most obvious deficiencies with the plugin.

I'm really not sure how long it will take me to get all of this done but it does need to get done, and I can push out an update about two to three times a week.

Please feel free to chime in and add to this list if you see I am missing something that is a major thorn in your side or even something that would drastically improve your workflow.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1011 on: July 02, 2021, 05:24:32 PM »
Version 2.9.0 - 07.02.2021
- Enabled subtractive and custom geometry for hip truss set assemblies.
- Enabled the edit function for hip truss sets.
- Labels and callouts added to hip truss sets.
- Added an "inset" parameter for hurricane ties into the global settings.

Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1012 on: July 02, 2021, 10:26:30 PM »
The valley truss set was one of the first features I programmed when I created this plugin about 5 years ago, however it has been sorely neglected and in its current state is a crude and ineffectual tool.

The current tool/assembly is not parametric and needs to take care of additional integration details with regards to blending with the main roof and the sub-roof.  I will be spending a few days working out some of these details which will also help me better formulate my game plane for the upcoming complex truss roof module.

It also needs some additional options/features such as:

1.) Ridge cap
2.) SUBTRACT and CUSTOM geometry
3.) Non-orthogonal algorithm (not a high priority but I will be considering it)
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1013 on: July 07, 2021, 06:41:13 PM »
First look at the HTML edit menu for valley truss sets:

Feels like I'm driving a new car.  I've just got to finish adding in the ridge cap module and I'll make this update live.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1014 on: July 08, 2021, 12:25:03 AM »
First look at the subtraction feature applied to a valley truss set:

Note that ridge caps will now be available for valley truss sets.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1015 on: July 08, 2021, 03:11:27 AM »
Version 2.9.1 - 07.08.2021
- Enabled subtractive and custom geometry for valley truss set assemblies.
- Enabled HTML draw and edit menus for valley truss sets.
- Labels and callouts added to valley truss sets.
- Enabled the ridge cap option for valley truss sets.

View model here:

https://3dwarehouse.sketchup.com/model/675e163e-597b-4f5e-b385-2ff1d2eb41fe/Valley-Set-Example
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1016 on: July 13, 2021, 08:03:20 AM »
Version 2.9.3 - 07.13.2021
- Added the option for adjusting the angle or pitch within the edit menu for common trusses.
- Enabled the following 3D wall cladding materials for gable walls of common trusses: Board and Batten, Metal, Lap, Shiplap, and Log.
- Added both horizontal and vertical offset parameters for wall cladding materials for common trusses.

These were much needed additions for gable truss roofs.  I still need to enable these options for the other 25 truss types but progress has been made.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1017 on: July 14, 2021, 05:53:13 PM »
Version 2.9.4 - 07.14.2021
- Improved the organization of the advanced options within the edit menu for common trusses.
- Enabled the following 3D roof cladding material for common trusses: Metal.
- Added a horizontal offset parameter for the 3D metal roof cladding material for common trusses.

Now I just need to enable this feature for all of the various truss sets and rafter roofs.

To create this particular standing seam roof my metal roof name is called out as:

metal_12.0_0.5_1.0_90
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1018 on: July 16, 2021, 03:15:17 AM »
Version 2.9.5 - 07.16.2021
- Improved the organization of the advanced options within the edit menu for gable rafter roofs.
- Enabled the following 3D roof cladding material for gable rafter roofs: Metal.
- Added a horizontal offset parameter for the 3D metal roof cladding material for gable rafter roofs.
- Added the option for adjusting the angle or pitch within the edit menu for gable rafter roofs.

View model here:

https://3dwarehouse.sketchup.com/model/61d4af0c-7144-4f41-abf3-637909c50b2a/Metal-Roof-3D-Asymmetric-Rafter-Roof
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1019 on: July 16, 2021, 09:32:23 PM »
Version 2.9.6 - 07.17.2021
- Improved the organization of the advanced options within the edit menu for hip rafter roofs.
- Enabled the following 3D roof cladding material for hip rafter roofs: Metal.
- Added a horizontal offset parameter for the 3D metal roof cladding material for hip rafter roofs.
- Added the option for adjusting the angle or pitch within the edit menu for hip rafter roofs.

View model here:

https://3dwarehouse.sketchup.com/model/46eda814-c7dd-48ac-8576-4e06054df14c/Metal-Hip-Rafter-Roof-3D
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1020 on: July 18, 2021, 12:31:09 AM »
Version 2.9.7 - 07.18.2021
- Improved the organization of the advanced options within the edit menu for valley and hip truss sets.
- Enabled the following 3D roof cladding material for valley and hip truss sets: Metal.
- Added a horizontal offset parameter for the 3D metal roof cladding material for valley and hip truss sets.
- Added the option for adjusting the angle or pitch within the edit menu for valley and hip truss sets.

View model here:

https://3dwarehouse.sketchup.com/model/127abc90-bf91-4c0c-9c3c-302efd16421e/Hip-Set-with-3D-Metal-Roof

The next roof type I would like to add the 3D metal roof cladding option to is the complex roof.  The only problem I see with this is that with a rather large (complex) roof the algorithm that generates the 3D geometry is going to slow things down significantly.  In order to make this more feasible and ultimately more usable I will probably need to move that chunk of code to the SketchUp C API however it does not appear that one can modify an open model with the C API.  Any thoughts in this regard would be greatly appreciated.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1021 on: July 20, 2021, 04:01:34 AM »
First look at the "Valley Set Check" for truss roofs.  (Note that this feature is currently being tested only with common trusses):

By default the check is toggled off for a new truss assembly.  However if the user places truss valley sets against a truss roof as shown, this option can then be toggled on and the regenerated roof will automatically remove the cladding beneath the valley set.  This will also update the net area calculated by the Medeek Estimator so that the correct cladding area is given.

Additional automation in dealing with the actual trusses (clipped heels) and soffit, fascia, sub-fascia, gutter etc... is being considered however I still need to give all of those considerations further thought and determine to what level of automation can or should be achieved.

Currently the best option for dealing with "complex" truss roofs will be the use of the CUSTOM and SUBTRACT features combined with this new "Valley Set" feature.
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1022 on: July 21, 2021, 04:43:22 AM »
Version 2.9.8 - 07.21.2021
- Improved the organization of the advanced options within the edit menu for complex rafter roofs.
- Enabled the following 3D roof cladding material for complex rafter roofs: Metal.
- Added a horizontal offset parameter for the 3D metal roof cladding material for complex rafter roofs.
- Added the option for adjusting the angle or pitch within the edit menu for complex rafter roofs.
- Added a "Valley Set Check" option for common truss roofs (roof cladding trim only).

Now I just need to figure out the hip and ridge algorithm, I got about halfway into it and then slammed into a brick way when it came to figuring out the junction of a ridge and a flying hip where the flying hip meets a lower ridge.

View model here:

https://3dwarehouse.sketchup.com/model/cc22ea9c-4c6d-4fb3-9780-fbe41cb2f742/3D-Metal-Complex-Roof
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1023 on: July 24, 2021, 09:05:47 AM »
Making progress on the complex rafter framing algorithm, but still a long ways to go:

Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

#### Medeek

• Journeyman
• Posts: 2,033
• Structural Engineering
##### Re: Truss Calculators
« Reply #1024 on: July 25, 2021, 08:12:49 AM »
Well the basics are more or less there but now the details...

Notice that the hip, flying hip and valley rafters are still missing, that algorithm is going to be fun.

Lots of little details that still need to be addressed to really make this usable in my opinion, especially when asymmetric roof planes are present within a roof assembly.

View model here:

https://3dwarehouse.sketchup.com/model/005fd8fe-4252-4d3d-8dbf-45c3e58eca37/Complex-Roof-Rafter-Framing
Nathaniel P. Wilkerson, P.E.
Designer, Programmer and Engineer

Templates: 4: index (default), Ads (default), Display (default), GenericControls (default).
Language files: 2: index+Modifications.english (default), Ads.english (default).
Style sheets: 0: .
Files included: 29 - 813KB. (show)
Cache hits: 11: 0.00106s for 38,962 bytes (show)
Queries used: 24.

[Show Queries]