Roof junction - angled

[Anonymous]

I am trying to join two sections of roof. The second roof is a triangle at a different pitch and slices into the corner of the regular roof. How can I exactly meet the two top vertices of the first roof? You will see in the diagram that I have approximated by manipulating the pitching line, however this approximation isn't good enough.

[Dwight]

You can change a roof node height by [in mac] Command-clicking a node and entering a new value.

Select the target node and Command-clicking this will reveal the heights of the node. Copy the high-lighted value.
Select the node on the other roof to be altered. Command-click, get the values and paste in the new value to match node height.

This won't change the roof slope pivot direction - that may need tuning, but it will change roof slope angle.

I'd say "see the manual," but a quick review doesn't show it to be there....

[Dwight]

And I keep forgetting that roofs can be placed in the 3D window with great accuracy to determine the correct pivot slope direction.

Place the first three points of a roof in the 3D window to establish the slope by clicking on the relevant nodes --- then add the roof plane.

[Aussie John]

I would put your roof pivot line on a known point of the main roof. Then command click on one of the other nodes to again match the other roof. I am not sure which are the critical edges/heights and ultimately that determines the best way to set up the whole roof.

In putting together two roof slopes, there is always the trick of pulling the two joining edges apart, select one of the slopes and command click on the other roof edge that is supposed to meet. The line will jump to its correct position.

[Djordje]

Dwight wrote:
And I keep forgetting that roofs can be placed in the 3D window with great accuracy to determine the correct pivot slope direction.

3D is the key.

Select the roof you want to adjust, acivate the roof tool, place the cursor on the roof NODE, keep left mouse button pressed. The rightmost ison in the pet palette allows you to pivot the roof around the ref line, matching the node you clicked to any other node.

HTH,

[Anonymous]

You might also set the pitch reference on the upper roof ref and use a negative slope to pitch the roof down - in many instances it is the amount of information available to set the parameters to get the desired results. Once the settings are correct, if a proper position of the lower roof is desired, just use the opposites of the first generated triangle. The section view through the center of the triangle roof could be another method of determining the parameters.