A slope is a 2D View of the model, created in a sloped plane. You can define a slope by selecting 3 existing grid points. Since only those members that lie within the plane of the slope are displayed, this type of view can be particularly useful for defining inclined roofs and ramps.
Note: Before creating a slope, note that:
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In order to create a slope, you need to be able to click three existing (not co-linear) grid points that lie in the plane of the slope.
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Grid points are formed at grid line intersections on construction levels. Therefore, if the points required to define the slope do not currently exist, you may need to insert new construction levels and grid lines to form them.
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A sloped plane must be entirely contained within a single sub model because the sub model determines the mesh parameters to be applied.
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In a sloped plane, positive Y is always aligned to the up-slope direction, so that positive X is always perpendicular to the slope.