Possible to change dimension extensions in TechDraw?

[benjaminwharton]

Does anyone know if it's possible to edit or remove extension lines for TechDraw dimensions, like you can the Draft type? I've taken a look at the documentation on the various TechDraw dimensions (ie. TechDraw Dimension Length) but haven't managed to find anything.

[wandererfan]

Does anyone know if it's possible to edit or remove extension lines for TechDraw dimensions, like you can the Draft type? I've taken a look at the documentation on the various TechDraw dimensions (ie. TechDraw Dimension Length) but haven't managed to find anything.

Not possible. Is this a commonly used convention (in Architecture maybe?)?

[babaroga]

I thing it is. For years, I was working in contractor business, you know, furniture for Hotels, restaurants, offices. From architects, you allways get drawings like this.

Screenshot_20190426_141534.png (21.59 KiB) Viewed 2730 times

There is a file for reference.

[benjaminwharton]

That's exactly it, I'm doing some architectural drawings to apply for a building permit. I have the layout and building done in FreeCAD already so it's simple to transfer it to a TechDraw page and add dimensions, but the dimensions look ugly with their long extension lines.

This is the sort of thing I need to be able to do:

plan.jpg (289.66 KiB) Viewed 2712 times

[vocx]

Not possible. Is this a commonly used convention (in Architecture maybe?)?

Basically everything you can do in the Draft Workbench, in this case with Draft Dimension, should be implemented by TechDraw tools. As Yorik is an architect, most of his development in Draft was done thinking about architectural needs.

[vocx]

...
This is the sort of thing I need to be able to do:plan.jpg

Do you know that it's possible to add Draft Dimensions to the model directly, and then use Arch SectionPlanes, and then TechDraw NewArch to get the drawing?

This workflow is essentially what Yorik, an architect, has used since the beginning. It's kind of the most reliable way of showing floor plans and their dimensions. Of course, it is a bit of work because in this case you have to draw each Draft Dimension in the model itself. The TechDraw advantage is that it calculates the distances automatically, but personally I think this works better for mechanical parts than for architectural plans.

See the tutorial https://www.freecadweb.org/wiki/Manual:BIM_modeling

[benjaminwharton]

Basically everything you can do in the Draft Workbench, in this case with Draft Dimension, should be implemented by TechDraw tools. As Yorik is an architect, most of his development in Draft was done thinking about architectural needs.

I've tried Draft Dimensions in the past but they never had the correct alignment when imported into a TechDraw page; although come to think of it that was before I understood how TechDraw elements are centered.

This workflow is essentially what Yorik, an architect, has used since the beginning. It's kind of the most reliable way of showing floor plans and their dimensions. Of course, it is a bit of work because in this case you have to draw each Draft Dimension in the model itself. The TechDraw advantage is that it calculates the distances automatically, but personally I think this works better for mechanical parts than for architectural plans.

See the tutorial https://www.freecadweb.org/wiki/Manual:BIM_modeling

Ah that's interesting to know. I'll give that tutorial a look, thanks!

[vocx]

Ah that's interesting to know. I'll give that tutorial a look, thanks!

I just noticed that tutorial uses the deprecated Drawing Workbench. Of course, you should avoid it, and use TechDraw instead.

See this: Tutorial_for_open_windows#Making_a_floor_plan_of_the_building. It's basically the same procedure to obtain the floor plan.

Don't forget to take a look at the rest of the tutorials.

[wandererfan]

That's exactly it, I'm doing some architectural drawings to apply for a building permit. I have the layout and building done in FreeCAD already so it's simple to transfer it to a TechDraw page and add dimensions, but the dimensions look ugly with their long extension lines.

I can add a property to control draw/don't draw extension lines, but I would like to have a selector "Drawing Standard - pick one of ISO, ASME, GOSS, Architecture, ...". Currently the individual settings for arrows, section line format, multiview convention, etc are all separate.

Not being a draughtsman, I don't know what changes when switching standards. Maybe a table?

[vocx]

I can add a property to control draw/don't draw extension lines, but I would like to have a selector "Drawing Standard - pick one of ISO, ASME, GOSS, Architecture, ...".

Do you want to enforce using these standards? I think having the possibility of using them is nice, but the user should have the freedom of choosing the individual options that he or she wishes.

In particular, I'm not sure if there is an architectural standard, in the way there are ISO standards. I think when it comes to architecture, it's more like "conventions" or usual practices.