Jump to content
  • 6
Kevin McAllister

Fix dashed hidden line rendering - what a mess!

Question

Please fix dashed hidden line rendering mode.

I almost always use a combination of Custom Renderworks for background rendering and Hidden Line for foreground rendering on Sheet Layer viewports. Once and a while I want to show some of the structure behind and switch to Dashed Hidden Line for foreground rendering instead. If an object is complex I'm instantly reminded of how unusable this mode can be. The reasons why -

- the dashed lines should not override the solid outlines of the object. I have no idea why this happens but it just makes the drawing look like the printer ran out of ink. The dashed lines should always be behind the solid lines and never obscure them.

- the line weight of the dashed lines should be adjustable. Currently they are the same weight as the solid lines. Yes, you can adjust their greyness but conventions call for more than this. I'm not sure why the greyness/dash style isn't by class much like section style. Making it by class would also allow for overriding the line weight.

- some degree of control over what is included. Often there are so many dashed hidden lines the drawing becomes a mass of unreadable lines.

Thanks,

Kevin

  • Like 1

Share this post


Link to post

22 answers to this question

Recommended Posts

  • 1

+1

Also, speaking of dashed lines, the dash setting in the hybrid object does not work at all. Although you have the tick on, it does not show as dashed (just grey). I would also ask for the settings mentioned above for the hybrid object.

Share this post


Link to post
  • 1

^

I realized that too an hour ago ....

Seems like all settings get ignored in VW 2016.

(Had not much experience with it before now though)

Share this post


Link to post
  • 1
Please fix dashed hidden line rendering mode.

I almost always use a combination of Custom Renderworks for background rendering and Hidden Line for foreground rendering on Sheet Layer viewports. Once and a while I want to show some of the structure behind and switch to Dashed Hidden Line for foreground rendering instead. If an object is complex I'm instantly reminded of how unusable this mode can be. The reasons why -

- the dashed lines should not override the solid outlines of the object. I have no idea why this happens but it just makes the drawing look like the printer ran out of ink. The dashed lines should always be behind the solid lines and never obscure them.

- the line weight of the dashed lines should be adjustable. Currently they are the same weight as the solid lines. Yes, you can adjust their greyness but conventions call for more than this. I'm not sure why the greyness/dash style isn't by class much like section style. Making it by class would also allow for overriding the line weight.

- some degree of control over what is included. Often there are so many dashed hidden lines the drawing becomes a mass of unreadable lines.

Thanks,

Kevin

I just did a search to see if this was a thing. Yeah...not sure why dashed lines would be on top of the solid lines. When they are greyed, it makes things look really bizarre.

Share this post


Link to post
  • 0
Please fix dashed hidden line rendering mode.

I almost always use a combination of Custom Renderworks for background rendering and Hidden Line for foreground rendering on Sheet Layer viewports. Once and a while I want to show some of the structure behind and switch to Dashed Hidden Line for foreground rendering instead. If an object is complex I'm instantly reminded of how unusable this mode can be. The reasons why -

- the dashed lines should not override the solid outlines of the object. I have no idea why this happens but it just makes the drawing look like the printer ran out of ink. The dashed lines should always be behind the solid lines and never obscure them.

- the line weight of the dashed lines should be adjustable. Currently they are the same weight as the solid lines. Yes, you can adjust their greyness but conventions call for more than this. I'm not sure why the greyness/dash style isn't by class much like section style. Making it by class would also allow for overriding the line weight.

- some degree of control over what is included. Often there are so many dashed hidden lines the drawing becomes a mass of unreadable lines.

Thanks,

Kevin

AutoCAD has long had a setting in the Plotter Configuration Editor called 'Merge Control' that allows you to globally control whether 'Lines Overwrite' (current Vw behavior) or 'Lines Merge' (what is described in Kevin's first request).

If possible, this 'Lines Merge Control' should be added as an option to Vw print settings. This would address the first part of Kevin's hidden-line requests

Share this post


Link to post
  • 1

I'm bumping this thread as I print out unusable dashed hidden line drawing again. What a mess. The overlapping lines make the object edges look dashed :-(

KM

Share this post


Link to post
  • 1

Here's a visual example to go with this thread. This really needs to be addressed.

Kevin

Screen Shot 2016-09-19 at 8.06.46 AM.png

 

Edited by Kevin McAllister

Share this post


Link to post
  • 1

Have you tried setting the viewport background render to Dashed Hidden Line and the foreground render to Hidden Line? Won't this give you what you need?

Nevertheless, it should do what your asking using ONLY Dashed Hidden Line.

-Matt

Share this post


Link to post
  • 1

Thanks Matt. Not a bad idea for simple things. I tend to use a Renderworks style for the background because I like shading on curved objects.

Kevin

 

Share this post


Link to post
  • 0
12 minutes ago, Kevin McAllister said:

Thanks Matt. Not a bad idea for simple things. I tend to use a Renderworks style for the background because I like shading on curved objects.

No problem Kevin. I like to do the same with the shading

Share this post


Link to post
  • 0

Kevin, If you don't have a fill in your hatch you don't get the problem. Seems the issue is the fill starts from the centre of the line and so does the line thickness, so if you have a wide dashed linestyle the dots only cover half the solid fill so you get this strange look. If you place the dashed line to back all the time or better still don't have fill on any dashed line polys you should be ok,
HTH

Share this post


Link to post
  • 0
40 minutes ago, Alan Woodwell said:

Kevin, If you don't have a fill in your hatch you don't get the problem. Seems the issue is the fill starts from the centre of the line and so does the line thickness, so if you have a wide dashed linestyle the dots only cover half the solid fill so you get this strange look. If you place the dashed line to back all the time or better still don't have fill on any dashed line polys you should be ok,
HTH

I disagree Alan, I think Kevin is right about this - Dashed Hidden Line is not working properly. Dashed lines should never render on top of solid lines, the lines should merge. Solid lines should always get 'Sent to Front' in terms of the rendering order.

Share this post


Link to post
  • 1

Perhaps Alan is referring to a separate issue when drafting in 2D, where you have a dashed shape with a fill in front of another shape behind it. Such as this:

Screen Shot 2016-09-19 at 6.11.02 PM.png

This is completely separate from the problems with Dashed Hidden Line rendering mode being discussed above, wherein the greyed lines are drawn in front of the solid lines, something which cannot be controlled and which is very dumb. (This is related to rendering 3D models, not 2D drafting.)

Screen Shot 2016-09-19 at 6.10.29 PM.png

  • Like 1

Share this post


Link to post
  • 1

Alan,

Thanks for the feedback. This issue is specific to Hidden Line rendering mode. Unfortunately the user has no control over the fill or front/back position of the lines. VW automatically generates things in the way shown in my left hand image. As Andy says, the solid lines should always be in front, which they are not.

Kevin

Share this post


Link to post
  • 2

Yes, these are both separate known issues. I just linked this thread to the bug report for the dashed hidden line problem. It needed a little bump.  ;-)

  • Like 1

Share this post


Link to post
  • 0
On 9/20/2016 at 8:00 AM, Matt Panzer said:

Yes, these are both separate known issues. I just linked this thread to the bug report for the dashed hidden line problem. It needed a little bump.  ;-)

 

Thanks to the nudge, this will be fixed in an upcoming service pack for VW2017.
 

  • Like 3

Share this post


Link to post
  • 0
16 minutes ago, Andrew Bell said:

Thanks to the nudge, this will be fixed in an upcoming service pack for VW2017.

 

Great news! Thanks Andrew!

Share this post


Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

 

7150 Riverwood Drive, Columbia, Maryland 21046, USA   |   Contact Us:   410-290-5114

 

© 2018 Vectorworks, Inc. All Rights Reserved. Vectorworks, Inc. is part of the Nemetschek Group.

×