The goal is to replace graphics within exported view templates. Since view templates in Revit are also considered views, this approach applies universally across all views.
The process is straightforward. You can access style overrides in a view using OverrideGraphicSettings. However, careful filtering of the retrieved data is necessary.
The method for overriding by category is very similar and can be applied almost identically.
Below is a sample implementation:
private class ViewGraphicOverride
{
static Document _doc;
static View _view;
static Category _category;
public ViewGraphicOverride(Document document, View view, string categoryName)
{
_doc = document;
_view = view;
_category = _doc.Settings.Categories.get_Item(categoryName);
}
// Visibility status
public string CategoryVisible
{
get
{
return _view.GetVisibility(_category) ? "Yes" : "No";
}
}
// Projection line weight
public string ProjectionLineWeight
{
get
{
string lineWeight = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
if (ogs.ProjectionLineWeight != -1) lineWeight = ogs.ProjectionLineWeight.ToString();
return lineWeight;
}
}
// Projection line color
public string ProjectionLineColor
{
get
{
string lineColor = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
if (ogs.ProjectionLineColor.IsValid)
{
Color rgb = ogs.ProjectionLineColor;
lineColor = $"{rgb.Red},{rgb.Green},{rgb.Blue}";
}
return lineColor;
}
}
// Projection line pattern name
public string ProjectionLinePatternName
{
get
{
string patternName = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
ElementId patternId = ogs.ProjectionLinePatternId;
if (patternId.IntegerValue != -1)
{
if (patternId.IntegerValue == -3000010)
patternName = "Solid Line";
else
patternName = LinePatternElement.GetLinePattern(_doc, patternId).Name;
}
return patternName;
}
}
// Projection fill pattern visibility
public string IsProjectionFillPatternVisible
{
get
{
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
return ogs.IsProjectionFillPatternVisible ? "Yes" : "No";
}
}
// Projection fill color
public string ProjectionFillColor
{
get
{
string fillColor = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
if (ogs.ProjectionFillColor.IsValid)
{
Color rgb = ogs.ProjectionFillColor;
fillColor = $"{rgb.Red},{rgb.Green},{rgb.Blue}";
}
return fillColor;
}
}
// Projection fill pattern name
public string ProjectionFillPatternName
{
get
{
string fillPatternName = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
ElementId patternId = ogs.ProjectionFillPatternId;
if (patternId.IntegerValue != -1)
fillPatternName = _doc.GetElement(patternId).Name;
return fillPatternName;
}
}
// Transparency level
public int Transparency
{
get
{
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
return ogs.Transparency;
}
}
// Cut line weight
public string CutLineWeight
{
get
{
string lineWeight = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
if (ogs.CutLineWeight != -1) lineWeight = ogs.CutLineWeight.ToString();
return lineWeight;
}
}
// Cut line color
public string CutLineColor
{
get
{
string lineColor = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
if (ogs.CutLineColor.IsValid)
{
Color rgb = ogs.CutLineColor;
lineColor = $"{rgb.Red},{rgb.Green},{rgb.Blue}";
}
return lineColor;
}
}
// Cut line pattern name
public string CutLinePatternName
{
get
{
string patternName = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
ElementId patternId = ogs.CutLinePatternId;
if (patternId.IntegerValue != -1)
{
if (patternId.IntegerValue == -3000010)
patternName = "Solid Line";
else
patternName = LinePatternElement.GetLinePattern(_doc, patternId).Name;
}
return patternName;
}
}
// Cut fill pattern visibility
public string IsCutFillPatternVisible
{
get
{
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
return ogs.IsCutFillPatternVisible ? "Yes" : "No";
}
}
// Cut fill color
public string CutFillColor
{
get
{
string fillColor = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
if (ogs.CutFillColor.IsValid)
{
Color rgb = ogs.CutFillColor;
fillColor = $"{rgb.Red},{rgb.Green},{rgb.Blue}";
}
return fillColor;
}
}
// Cut fill pattern name
public string CutFillPatternName
{
get
{
string fillPatternName = "<No Override>";
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
ElementId patternId = ogs.CutFillPatternId;
if (patternId.IntegerValue != -1)
fillPatternName = _doc.GetElement(patternId).Name;
return fillPatternName;
}
}
// Halftone status
public string Halftone
{
get
{
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
return ogs.Halftone ? "Yes" : "No";
}
}
// Detail level
public string DetailLevel
{
get
{
string detailLevel;
OverrideGraphicSettings ogs = _view.GetCategoryOverrides(_category.Id);
switch (ogs.DetailLevel)
{
case ViewDetailLevel.Coarse:
detailLevel = "Coarse";
break;
case ViewDetailLevel.Medium:
detailLevel = "Medium";
break;
case ViewDetailLevel.Fine:
detailLevel = "Fine";
break;
default:
detailLevel = "By View";
break;
}
return detailLevel;
}
}
}
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