Saturday, January 24, 2015

ACA: AEC Modify Tools, Part 5, AEC Obscure




First locate in program [AecLineworkExtend].
Previous locate in program [AECLineworkSubtract].

The AecLineworkObscure bidding crapper be institute on the Home slip tab, on the Modify commission flyout, by selecting the Obscure agency from the Obscure/Crop flyout. If the Obscure agency is not the displayed agency on the Obscure/Crop flyout, superior the correct lateral of the split button (down arrow icon) to deploy the flyout and opt the Obscure tool. Or, with no bidding active, you crapper correct utter in the art window, and opt AEC Modify Tools > Obscure from the environment menu.

The AecLineworkObscure bidding is utilised to modify the parts of linework, AEC Polygons, Mass Element Extrusions that hit an embedded profile, Spaces and Hatches as well as Block References which allow some of these objects that fall within a user-defined obscuration area, replacing the linework or boundaries of the another items with linework settled on the layer circumscribed by the HIDDEN Layer attorney in the underway Layer attorney Style. This layer typically has a dashed linetype assigned. In the out-of-the-box Imperial content, using the AEC Title Case - NCS 256 Color Layer attorney Style, this layer is G-Detl-Hidd, colouration Red and linetype HIDDEN2.

As with the AecLineworkSubtract command, there are digit options for specifying the extents of the obscuration area:
  • Select digit or more items in the drawing, which modify at small digit winking loop. Any azygos winking component module impact (closed Polyline, Circle, Ellipse, AEC Polygon, Mass Element or Space), as module some compounding of objects that, combined, modify at small digit winking loop.
  • Press the ENTER key when prompted to superior items to be obscured, and then delimitate an obscuration rectangle by selecting oppositeness corners of a rectangle. The rectangle module hit sides parallel to the X- and Y-axes of the underway UCS.
The primary ingest of this bidding is to make it easy to exhibit parts of Detail Components that, for the detail at hand, become behindhand another item, with a unseeable linetype, without having to explode or manually break linework. It module impact on linework and country references generated by another means.
Here are some additional notes regarding the AecLineworkObscure command:
  • MText, Text, Ellipses and Ellipse Arcs cannot be added to the activity ordered of objects to be obscured.
  • Ellipses and Ellipse Arcs crapper be designated as (part of) a bounds process the Atlantic to be obscured.
  • Mass Elements with a appearance another than "Extrusion" and Mass Element Extrusions that hit an outside Profile crapper be designated as objects to be obscured, but module not strained by the AecLineworkObscure command. These types of Mass Elements crapper be utilised to delimitate the Atlantic to be obscured.
  • If a Block Reference is designated as an goal to be obscured, exclusive those nested objects within the country on which the AecLineworkObscure bidding entireness module be affected.
  • Attributes within a Block Reference module not be strained by the AecLineworkObscure command.
  • If a Block Reference is designated as an goal to be obscured, it has obuscurable nested elements and it is the exclusive happening of that Block Reference in the drawing, then the example country definition module be redefined to allow the personalty of the obscuration. If at small digit happening of the Block Reference remains unaffected by the obscuration, then the example country definition module rest same and the strained instance(s) module become instance(s) of new, anonymous country definition(s).
  • Multi-View Blocks crapper be designated as an goal to hit a conception obscured, but module not be strained by the command.
  • If the astir View Block of a Multi-View Block contains linework that forms a winking bounds or contributes to a winking boundary, it crapper utilised to delimitate the Atlantic to be obscured.
  • Unlike the AecLineworkTrim, AecLineworkDivide and AecLineworkSubtract commands, ingest of the AecLineworkObscure bidding on a winking Polyline or Circle does not termination in digit or more winking Polylines.
  • A Line or Arc, detached or within a country reference, that is in the activity ordered of the AecLineworkObscure bidding is replaced with digit or more Polylines.
  • A Circle, detached or within a country reference, that is in the activity ordered of the AecLineworkObscure bidding is replaced with digit or more Polylines for the portion(s) outside of the Atlantic existence obscured and digit or more Arcs for the portion(s) within the Atlantic existence obscured. The Polyline(s) and/or Arcs module hit vertices/endpoints at the World Coordinate System 0-degree and 180-degree locations on the example Circle.
  • A winking Polyline, detached or within a country reference, that is in the activity ordered of the AecLineworkObscure bidding is replaced with digit or more Polylines for the portion(s) outside of the Atlantic existence obscured and Lines/Arcs for the portion(s) within the Atlantic existence obscured.
  • An unstoppered Polyline, detached or within a country reference, that is in the activity ordered of the AecLineworkObscure bidding is replaced with digit or more Polylines for every portions, whether within or outside of the Atlantic existence obscured.
  • If a hatch goal is to be obscured, the hatch module be distant from the from the obscuration area, but no unseeable graphics module be generated.
  • Obscuring an associable Hatch module termination in a non-associative Hatch, disregarding of whether or not the bounds of the Hatch is included in the obscuration.
  • Associative Spaces, Walls, Doors, Windows and Door/Window Assemblies crapper be designated as items to be obscured, but module not be strained by the command. Non-associative Spaces do impact with the AecLineworkObscure command.
  • If you fog an AEC Polygon, the Exterior Edge components of the AEC Polygon that fall with in the obscuration Atlantic module be replaced with "hidden" lines or arcs. Interior Edge components of the AEC Polygon, if present, are removed, but not replaced with "hidden" linework. New Exterior Edges and, if present, Interior Edges are created when the AEC Polygon extends beyond the obscuration area, but these newborn edges are "invisible" - no linework is worn on screen. If Interior or Exterior Hatch or Fill components are overturned on, they will, however, modify to modify in the restricted AEC Polygon extents, which does not provide a genuine obscuration effect.
  • If the Atlantic to be obscured effectively splits an goal into digit or more separate pieces, the termination depends upon the designated object. Hatches, Mass Element Extrusions (embedded Profiles), AEC Polygons and Spaces module termination in digit object, with digit (or more) separate, non-contiguous regions. See above for state on how newborn AEC Polygon Edges module not hit some circumpolar graphics.
  • If an goal (or nested object, in the case of a country reference) in the fog activity ordered is all within the obscuration boundary, it module be completely replaced with unseeable linework.
  • Unlike the AecLineworkSubtract command, if you superior digit or more objects to delimitate the extents to be obscured, you are not prompted as to whether the bounds objects are to be erased.
  • Even though Mass Element Extrusions (with embedded profile) are 3D objects and Spaces crapper be 3D objects, the unseeable linework is exclusive 2D, in the underway X-Y plane. The remotion of assets of these objects in the obscuration Atlantic does change the goal in 3D.

As with the AecLineworkDivide and AecLineworkSubtract commands, there are goal types and combinations of objects within a Block Reference that I did not test. If you are intellection of using the AecLineworkObscure bidding in a situation that you hit not previously encountered, you haw want to ingest the Mark option of the UNDO bidding to locate digit or more UNDO Marks preceding to using the command, so that you crapper easily UNDO Back to the saucer before the bidding was utilised if you get unheralded results.

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