Dimensions on Isometric drawing

Use this forum to ask questions about how to do things in QCAD version 3

Moderator: andrew

Dimensions on Isometric drawing

Postby katad0t1s » Sat Aug 03, 2013 1:46 pm

I really like the projection tools and the Isometric grid to create Isometric drawings.

However, I have not been able to find out how to add text and dimensions that would look correct in
these drawings.

In autocad, I used Oblique angle for the text properties and rotated as required. What shoud I do here?

For reference, see my example drawing below. I would like the text to follow the isometric lines and perhaps
add dimensions showing the length of the pipe line.

Thanks in advance.

ball_valve_stem.png
ball_valve_stem.png (31.5 KiB) Viewed 1394 times
katad0t1s
Newbie Member
 
Posts: 6
Joined: Sat Aug 03, 2013 12:52 pm

Re: Dimensions on Isometric drawing

Postby Clive » Sun Aug 04, 2013 12:33 pm

Based on QCAD 3.1.6 pro.

When placing text in the normal manner you are presented with the option to enter your required angle!

Text Angle options.png
Text Angle options.png (24.28 KiB) Viewed 1379 times


Again in QCAD pro, you can add 'Aligned' dimensions.

(These options may only be available in QCAD Pro).
User avatar
Clive
Moderator
 
Posts: 819
Joined: Thu Aug 25, 2011 9:28 pm
Location: UK

Re: Dimensions on Isometric drawing

Postby katad0t1s » Sun Aug 04, 2013 4:25 pm

clive wrote:Based on QCAD 3.1.6 pro.

When placing text in the normal manner you are presented with the option to enter your required angle!

The attachment Text Angle options.png is no longer available


Again in QCAD pro, you can add 'Aligned' dimensions.

(These options may only be available in QCAD Pro).



I see what you mean. However, this is not correct for annotating isometric drawings. The numbers do not have the "correct" isometric perspective.

To see what the end result should look like, see the pic attached below which show dimensions placed on an isometric piping drawing. Text and dimensions
have to be placed horizontally, or vertically with the proper isometric perspective and orientation (you can google more examples if you wish to do so). So far, I have not found a way to do this in Qcad.

ps In this example the annotation "Grooved End" follows your solution but it is not correct.

iso.jpg
iso.jpg (120.69 KiB) Viewed 1367 times
katad0t1s
Newbie Member
 
Posts: 6
Joined: Sat Aug 03, 2013 12:52 pm

Re: Dimensions on Isometric drawing

Postby andrew » Sun Aug 04, 2013 6:48 pm

You can project anything you draw 'flat' into an isomtric view using the isometric projection tool of QCAD. For example:

- Draw a dimension / text / ... as they would look from a top, side or front perspective
- Select the entities you have drawn
- Modify - Isometric projection
- Choose reference point
- Choose projection in the top tool bar
- Place projected entities in your isometric drawing
User avatar
andrew
Site Admin
 
Posts: 2370
Joined: Fri Mar 30, 2007 6:07 am

Re: Dimensions on Isometric drawing

Postby katad0t1s » Sun Aug 04, 2013 7:24 pm

andrew wrote:You can project anything you draw 'flat' into an isomtric view using the isometric projection tool of QCAD. For example:

- Draw a dimension / text / ... as they would look from a top, side or front perspective
- Select the entities you have drawn
- Modify - Isometric projection
- Choose reference point
- Choose projection in the top tool bar
- Place projected entities in your isometric drawing



@andrew yes that would work but it would require me to draw every pipe run in front view first and the project it. Moreover, the dimension gets exploded once it gets projected ie it can not be edited.

In my field of work (I am a piping engineer) we use the isometric grid to draw our piping layout and then add annotations (dimensions, text, etc) as necessary. Doing it otherwise would complicate things
greatly I am afraid. Same would go for mechanical parts as well, I imagine.
katad0t1s
Newbie Member
 
Posts: 6
Joined: Sat Aug 03, 2013 12:52 pm

Re: Dimensions on Isometric drawing

Postby andrew » Sun Aug 04, 2013 7:42 pm

I understand. The isometric tools of QCAD are not really suitable for drawing directly in isometric space.
They are rather meant to produce an isometric drawing once the top / side / front views have been drawn already.
User avatar
andrew
Site Admin
 
Posts: 2370
Joined: Fri Mar 30, 2007 6:07 am

Re: Dimensions on Isometric drawing

Postby katad0t1s » Sun Aug 04, 2013 7:55 pm

@andrew I see.

Well, hopefully, this could be a feature to be added in the future perhaps. Thanks for all the answers mate.
katad0t1s
Newbie Member
 
Posts: 6
Joined: Sat Aug 03, 2013 12:52 pm


Return to QCAD 3 'How Do I' Questions

Who is online

Users browsing this forum: No registered users and 2 guests