Keypoints Enabled in Mechanical Building Designer

Mechanical discipline components vary greatly in appearance and complexity. All components contain a number of keypoints enabled for associative dimensioning. The number varies depending upon the geometry and the component type. The following table illustrates the keypoint variations among components.

Note: Please note color coded keypoint glyphs illustrated in the following table are for reference only and do not appear in any Building applications.

Member/Section Type	Building/Default Keypoints
Duct and Pipe	Round, rectangular and oval shaped duct linear components. HVAC round duct and Plumbing pipe behave similarly. Three sets of keypoints at ends and mid point: 9 keypoints per set. Blue dots – Top, bottom, left and right justifications: 24 total keypoints. Red dots – Center line (includes connect points): 3 total keypoints
Elbows	Rectangular, round and oval shaped elbows. HVAC round and Plumbing elbows behave similarly. Keypoints on connect points and center line intersection: 3 total keypoints. Blue dots – Center line intersection located on center line plane. Red dots – Connect points.
Fittings and Devices	Random fittings: Tee (3 connect points) & cross (4 connect points) Keypoints on connect points only. Red dots – Connect points.

Tip: Situations may occur where keypoint snaps are required on plain geometry instead of Mechanical discipline component keypoints and connect points. To disable the behavior described in the table above, a preference is added to the Building Designer tab of the Preferences dialog.

Keypoints Enabled in Mechanical Building Designer

Round, rectangular and oval shaped duct linear components. HVAC round duct and Plumbing pipe behave similarly.

Rectangular, round and oval shaped elbows. HVAC round and Plumbing elbows behave similarly.

Random fittings: Tee (3 connect points) & cross (4 connect points)