The 3d drawing also differs very slightly from the line drawings including a false hip connecting the front porch to the bedroom hip to its right and some false roofs over the unseen shed roof and how the garage roof connects to the main roof and lack of crickets.
How to draw a roof line.
To draw something parallel to the roof line of the house the tops of windows for example draw a line from the front corner of the building to each of the two vanishing points.
In this step i have drawn in some dashed lines.
The other 2 lines the horizontal and vertical line are there to make an imaginary box.
Step 11 draw a vertical line thru the center of the x and draw the front one as high as you want the roof to be.
Now you have a roof.
The roof plan is sometimes overlooked on some plans but it is a very important feature to a complete set of plans.
Click and drag from one corner of the wall top to the other.
Erase the vertical edge you drew in step 3 and the guide you drew in step 2.
Odd roof types dormers.
This shows the correct angle for other lines parallel to the top and bottom of the building.
You can take this a step further and build multiple roof lines on.
This finishes of the roof line.
A roof plan is a view from the top of the house that shows the geometry in flat view of a roof.
Step 12 draw a line from the front vertical line to the right vanishing point.
Now we can draw in the ridge lines as shown.
Position disc on wall top before drawing.
To start drawing in the hipped roof draw lines at 45 degree angles from all the points on the roof as shown in blue.
Draw two edges from the top of your vertical line to the corners of your roof.
This a a simple example of how to build a roof line or any other inclined plane when using two point perspective.
The 45 degree angle lines represent the hips.
Create a structure to put the roof on.
Cursor changes to a transparent disc to gauge drawing height.
Use the following steps to draw a roof.
Step 13 now draw a letter v using the top of the vertical line to the top 2 corners of each square.
To finish the roof draw a line from the peak of the roof down to the top corner of the back edge of the wall.