Function GetPolylines7( _
   ByVal CrossHatchOption As System.Short, _
   ByRef Polylines As System.Object _
) As System.Object

Dim instance As IView
Dim CrossHatchOption As System.Short
Dim Polylines As System.Object
Dim value As System.Object
 
value = instance.GetPolylines7(CrossHatchOption, Polylines)

System.object GetPolylines7( 
   System.short CrossHatchOption,
   out System.object Polylines
)

System.Object^ GetPolylines7( 
&   System.short CrossHatchOption,
&   [Out] System.Object^ Polylines
) 

Parameters

CrossHatchOption

• 0 = include crosshatch lines

1 = exclude crosshatch lines

2 = include only crosshatch lines

Polylines

Array of doubles of the lines in the view

Return Value

The difference between this method and IView::GetPolyLinesAndCurves and IView::IGetPolyLinesAndCurves is that splines and ellipses returned by these methods are returned as equation parameters, which are more precise definitions.

This method returns data for all visible solid model edges in the drawing view. This includes these types of edges:

• arcs: Returned using a center point, radius, and start and stop location.

• circles: Returned using a center point, radius, and start and stop location.

• ellipses: Returned as tessellated polylines.

• splines: Returned as tessellated polylines.

• straight lines: Returned as tessellated polylines, but because the edges are straight, there is no loss of data in the approximation.

NOTE: If the view contains silhouette edges, then the polylines that render them cannot correspond to an edge because an edge does not actually exist. For example, if the third and fourth polyline in the set of polylines returned describe a silhouette edge, then array positions 4 and 5 in the edge array will be null.

This method also lets you include or exclude crosshatch lines. This method does not return data for sketch segments added by a user in the drawing view.

Format of the return value is the following array of doubles:

[ Type, GeomDataSize, GeomData[ ], LineColor, LineStyle, LineFont, LineWeight, LayerID, LayerOverride, NumPolyPoints, [x,y,z] ]

where:

Type = underlying geometry type, possible values are:

• 0 Polyline type

• 1 Arc or Circle type

GeomDataSize = number of elements in the GeomData array, for Type = 0 this will be 0.

GeomData[ ] = geometric data that can be used to represent the underlying geometry type. The data returned in this array is based on the underlying geometry type:

• Type = 0. This array is empty

• Type = 1. [ centerPtX, centerPtY, centerPtZ, startPtX, startPtY, startPtZ, endPtX, endPtY, endPtZ, normalX, normalY, normalZ ]

LineColor = polyline color. This value is determined either by the explicitly set value or by the layer that the polyline is on.

LineStyle = value combines polyline font and weight information. This value can be used as an input to GetLineFontInfo and GetLineFontName. If this value is -1, then the user has probably modified the line display manually in the drawing and you should use the LineFont and LineWeight return values to recreate the exact polyline style.

LineFont = value is used for polyline font information. This value can be used as an input to the GetLineFontInfo2 and GetLineFontName2 functions. This value will only be valid if LineStyle is -1.

LineWeight = polyline weight where Thin = 0.0, Normal = 1.0, Thick = 2.0. This value will only be valid if LineStyle is -1.

LayerID = integer value indicating which layer holds this polyline. The ILayer object can be obtained by passing this integer value to ILayerMgr::GetLayerById and ILayerMgr::IGetLayerById.

LayerOverride = integer with bit flags set to determine which properties, if any, have been overridden with respect to the Layer default properties. If the bit value is set, then the specific property or properties have been overridden. The bit indicators are: color = 0x1, style = 0x2, and width = 0x4. Therefore, if LayerOverride was returned as 3, you know the color and style have been specifically set for this item and may not match the default values associated with this item's layer.

NumPolyPoints = number of XYZ points found in the [x,y,z] return value

[x,y,z] = array of points used to describe the polyline. This array has NumPolyPoints points. This data will be returned for every polyline regardless of Type.