topic Re: How to Set Line Pattern in Line Style in Revit API Forum

How to Set Line Pattern in Line Style

Anonymous — Tue, 11 Dec 2012 01:42:20 GMT

I'm creating new line styles in Revit MEP 2013 through the API in VB.Net, and I've almost got everything figured out... except setting the line pattern. There doesn't seem to be a way to do this one, last step. Any ideas?

Here's what I have so far:

PublicFunction LoadStyle(ByVal n AsInteger) AsBoolean

Dim lineCat As Categories = m_RvtDoc.Settings.Categories

ForEach objCategory As Category In lineCat

If objCategory.Name = "Lines"Then

If objCategory.CanAddSubcategory = TrueThen

Try

Dim cat As Category = lineCat.NewSubcategory(objCategory, MEP(n, 6))

'set color

If MEP(n, 7) <> ""Then

Dim r, g, b AsInteger

r = MEP(n, 7)

g = MEP(n, 8)

b = MEP(n, 9)

Dim c As Autodesk.Revit.DB.Color = New Autodesk.Revit.DB.Color(r, g, b)

cat.LineColor = c

EndIf

'set lineweight

If MEP(n, 11) <> ""Then

cat.SetLineWeight(

CInt(MEP(n, 11)), GraphicsStyleType.Projection)

EndIf

'set line pattern

If MEP(n, 10) <> ""Then

'cat.LinePatternId = GetElementByName(GetType(LinePatternElement), MEP(n, 10))

EndIf

Catch

MsgBox(

"Line style " & MEP(n, 6) & " already exists.", MsgBoxStyle.Information, "Load Systems Error")

EndTry

Exit For

Else

MsgBox(

"Can't add line style.")

Exit For

EndIf

EndFunction

Re: How to Set Line Pattern in Line Style

Joe.Ye — Wed, 19 Dec 2012 09:51:08 GMT

Revit didn't expose the API to change category's line pattern. Revit engineering team already knew this request. Hope this will come not long.

Re: How to Set Line Pattern in Line Style

Anonymous — Wed, 19 Dec 2012 18:58:13 GMT

Thanks for the response, Joe. Would it be possible to check to see if it's exposed in Revit 2014? And are there any workarounds? This is very important for my project.

Thanks,

Dave Horger

Interface Engineering, Inc.

Re: How to Set Line Pattern in Line Style

Joe.Ye — Thu, 20 Dec 2012 06:38:32 GMT

Thanks for your comments on the API wish. I passed on your comments on this request to the engineering team.

Re: How to Set Line Pattern in Line Style

atiefenbach — Tue, 22 Apr 2014 13:22:29 GMT

+1 to adding this feature!

Re: How to Set Line Pattern in Line Style

jdbreazeale — Fri, 15 Aug 2014 15:22:55 GMT

+1 Please add this feature

Re: How to Set Line Pattern in Line Style

boostyourbim — Sun, 26 Jul 2015 20:11:19 GMT

Yes, please fill this gap Autodesk so we can set the line style's line pattern via the API

Re: How to Set Line Pattern in Line Style

rosalesduquej — Mon, 27 Jul 2015 14:16:31 GMT

Dear All,

I have added your comments to the Epic story, there is still plans to work on this, but still needs to be prioritzed agains all other requests.

Thank you very much for all your patience and collaboration.

Cheers,

Re: How to Set Line Pattern in Line Style

Anonymous — Sun, 12 Jun 2016 12:58:53 GMT

Yes, please add this! Has it been done yet? How many more years?

Re: How to Set Line Pattern in Line Style

Revitalizer — Wed, 15 Jun 2016 07:55:58 GMT

Hey,

in Revit 2017 API, there is a new Category.SetLinePatternId method.

Seems that Autodesk provides a solution, finally.

Revitalizer

Re: How to Set Line Pattern in Line Style

Ning_Zhou — Sun, 26 Jul 2020 09:31:45 GMT

but SetLinePatternId() doesn't work, SetLineWeight() works fine along w/ LineColor

subCat.SetLineWeight((int)cat.GetLineWeight(GraphicsStyleType.Projection), GraphicsStyleType.Projection); // works OK
subCat.LineColor = cat.LineColor; // works OK
subCat.SetLinePatternId(cat.GetLinePatternId(GraphicsStyleType.Projection), GraphicsStyleType.Projection); // doesn't work