How to Draw CENTERLINE DRAWING FOR MORE THAN 100 COLUMN OF DIIFERNT SHAPE OF COLUMN?
Hi Nirajkumar,
Need more information. Please post a screen shot, or even better, a drawing, so that we can see what you see.
Dave
Dave Stoll
Las Vegas, Nevada
NVIDIA Quadro P5000 16GB
Windows 10 Pro 64 / Civil 3D 2027
Hi,
If you're asking to draw centerlines for all 100 columns in one shot .. then the answer is NO there is no way . You have to do it manually and one by one .
Imad Habash
An AutoLisp routine could probably be made to do that [and maybe there is already something in the >Customization Forum<], but it would depend on how the columns are drawn. Is a square one a closed Polyline, or four Lines, or a 3D Solid, or...? And it would require some criteria for where the column line goes through a shape that is not symmetrical across the centerlines [e.g. L-shaped]. And do you need center lines in both directions through every column, perpendicular to each other, or might non-orthogonal directions be involved? Etc., etc. Most such questions will be answered by a sample drawing.
In these kinds of [I assume] rectangular-concrete-column buildings, I have typically seen the "column line" [the position on a column that remains in the same place from floor to floor going up through the building, as columns get smaller] on an edge or corner, not through the center, particularly around the perimeter [as at the lower right corner with the two "start point" lines]. And it looks that way with the alignment of some [but not all] 12" & 9" columns that I assume represent different floors. That would make it very difficult to automate, if what one has to work with are mostly closed Polyline rectangles, some of which may need column lines on their edges [how to decide which edges?], and some through their centers.
The one thing you didn't include in the drawing is any actual column lines to show what you intend. If you provide another drawing with those, include what you intend for an L-shaped column [I don't see any in the sample drawing].
Your Layer naming is peculiar -- 21"x27" and 18"x33" columns on a Layer called "12INCH COLUMN", lift shaft walls on one called "9 INCH COLUMN", etc. That would make it hard to automate -- I assume you don't want a column line generated through lift shaft walls, but they're closed Polylines on the same Layer as some that I assume you do want column lines through. How would a routine differentiate, since selection would typically be filtered by Layer and object type? Would it need to check the number of vertices? If you might have L-shaped ones, it couldn't, for example, just ignore anything with more than 4 vertices, but could it assume that anything with 6 or fewer is always a column?
@Patchy wrote:
Kent wrote one before:
https://forums.autodesk.com/t5/autocad-forum/centerlines-for-rectangles/td-p/9021147
....
Thanks for the reference, but that does Lines only within the rectangle, across opposite midpoints of 4-sided Polylines [it draws the white here when the red is selected]:
@nirajbhalodiya , I assume you're talking about column lines that extend across the drawing, but again, a sample drawing showing what you intend would answer the question.
