Similar to the 'Live' status, upon activation all drawing content is sectioned and clipped-away parts are no longer displayed. To activate the 'Live' status, entities in a drawing are temporarily modified, e.g. clipped solids are replaced by temporary solids with a different shape. When activating the 'Clip Display' status, ONLY the display of entities is clipped, as in the 3DCLIP command, entities are not replaced by temporary versions. Different from the 'Live' status, the 'Clip Display' status allows to continue using all modeling and editing operations on all drawing content.
While the 3DCLIP command allows to clip the display by a Front and a Back plane, it is not very useful because one needs to reset these planes whenever the view direction changes. Using a SectionPlane object to control which part of a model is displayed, makes it easy to store and repeat display states. Besides the Plane state, which typically clips a model in two halves, also the Boundary and Volume state of the SectionPlane can be used Multiple SectionPlanes can simultaneously be set to 'Clip Display' status, as opposed to the 'Live' status which can only be set exclusively for one SectionPlane at a time.
When using the Clip Display status, clipped solids can optionally be closed by setting the 'Use Lids' option. For convenience it has been made possible to snap to the geometry of these lids, while they are not actually added to the drawing, the lids are 'transient' entities.
If enabled, the hatch pattern defined in the 2dSection Intersection Fill settings of the SectionPlane settings, will be displayed on top of the lids. Work in progress: for BimSections, the hatch patterns of the material of the intersected solids will be used.
While dragging the grips of a 'Clip Display' section, the display of the model is clipped accordingly in REAL TIME. Upon completion of editing a section, the calculation of the required lids and hatches is started, which may take a few seconds to complete. This can be avoided by switching off the 'Use Lids' option.
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