How to retrieve the final graphics style of an element?

[maisoui]

Hi,

I am developing a solution to export elements from a Revit view to another format and I like to retrieve the "final" Graphics Style of an element according to a specific view, details level, view template or overrides, materials, etc. I'm looking for a magic method in Revit API to give me line weight, line color and line pattern of an element.

view.ComputeFinalGraphicsStyle(element);

All suggestions are welcome.

Best regards,

Jonathan

[JimJia]

Dear Jonathan,

If you want to get the info, you need to do it manually on your own codes.

Here are some thoughts may help you.

Firstly, get the graphics style from element's category, then, if the element in a specific view has override graphics settings, get from override graphics settings instead.

Hope the following codes can give you some idea

public void GetGraphicsStyleInView(Document doc, View view, Element e)
        {
            /*
             * first get graphics style from element's category, 
             * if override graphics setting setted, get from override
             */
            Color color = null;
            int? lineWeight = null;
            LinePattern linePattern = null;

            //get line weight& color from category
            lineWeight = e.Category.GetLineWeight(GraphicsStyleType.Projection);
            color = e.Category.LineColor;

            ElementId patternId = e.Category.GetLinePatternId(GraphicsStyleType.Projection);
            if(patternId != ElementId.InvalidElementId)
            {
                LinePatternElement patternElement = doc.GetElement(patternId) as LinePatternElement;
                if (patternElement != null)
                    linePattern = patternElement.GetLinePattern();
            }

            //if element has override, then get from override 
            OverrideGraphicSettings overrideGraphicSettings = doc.ActiveView.GetElementOverrides(e.Id);
            if (null != overrideGraphicSettings)
            {
                if(overrideGraphicSettings.CutLineColor.IsValid)
                    color = overrideGraphicSettings.CutLineColor;
                if(overrideGraphicSettings.CutLineWeight > 0)
                    lineWeight = overrideGraphicSettings.CutLineWeight;
                if (overrideGraphicSettings.CutLinePatternId != ElementId.InvalidElementId)
                {
                    LinePatternElement patternElement = doc.GetElement(overrideGraphicSettings.CutLinePatternId) as LinePatternElement;
                    if (patternElement.GetLinePattern() != null)
                        linePattern = patternElement.GetLinePattern();

                }
            }
        }

[maisoui]

Hi JimJia,

Thank your for your answer and your full sample.

Will that take care of the view template if exists?

There are so many different levels in the element visibility override hierarchy?

Best regards,

Jonathan

[jeremytammik]

Yes, very many:

http://thebuildingcoder.typepad.com/blog/2012/04/getelement-method-and-get-element-type.html#2

Cheers,

Jeremy

[maisoui]

Yes, 10 levels, so can Revit (API) developers expose a method to retrieve the final graphics style of an element in a specific view ?

[jeremytammik]

>>> Revit Idea Station

[jeremytammik]

Another idea:

To determine the material of a solid, checking out this 8 year old blog post:

http://thebuildingcoder.typepad.com/blog/2009/11/solid-material.html

To determine the graphics style, you should be able to use the GeometryObject.GraphicsStyleId property:

http://www.revitapidocs.com/2017/4103f148-957e-3f44-9ccd-a5ed6702c689.htm

Cheers,

Jeremy