Perspective Drawing - Paper 1 Flashcards
What does perspective drawings produce?
The most realistic images of all the forms of pictorial drawing created on a 2 dimensional surface.
How are perspective drawings classified?
According to the number of vanishing points that are used in a drawing, which in turn is determined by the inclination of the image to the picture plane.
What is a two-point perspective?
When an object is situated so that its lies at an angle to the picture plane, then two vanishing points are required and the result is a two-point perspective.
How do you find the vanishing points?
The vanishing points are always found on the HL by projecting off the SP, parallel to the sides of the object, then bouncing the projection lines off the PP to meet the HL at VPR and VPL.
When can you determine the true height of a feature?
Only when it is in the picture plane.
How do you determine the true height of a figure that is not in the picture plane?
The feature must first be projected to the picture plane where its height can be determined, then projected back to its relative place on the drawing.
What is the two-point perspective circle or arc?
A method of drawing a two-point perspective circle or curve in the upright position and the horizontal position.
What is step 1 to create a vertical arc or circle?
Divide the views of the circles into 12 equal segments.
What is step 2 to create a vertical arc or circle?
Join the division lines on the front view of the circle to the height line, then join them to the VP.
What is step 3 to create a vertical arc or circle?
Join the divisions on the top view to the SP.
What is step 4 to create a vertical arc or circle?
Project the lines at 90 degrees from the point of the intersection with the PP towards the GL.
What is step 5 to create a vertical arc or circle?
Use a drawing aid to create the curves.
What is step 6 to create a vertical arc or circle?
Complete the cylinder and add the centre lines.
What is step 1 to create a horizontal arc or circle?
Divide the top view of the arc into equal sized segments.
What is step 2 to create a horizontal arc or circle?
Extend the divisions to the PP, drop them downwards to meet the GL, then join them to the VP.
What is step 3 to create a horizontal arc or circle?
Join the divisions on the circumference of the arc to the SP.
What is step 4 to create a horizontal arc or circle?
Draw in some reference lines for easier location of the arc.
What is step 5 to create a horizontal arc or circle?
Drop verticals to meet the receding lines creating a grid.
What is step 6 to create a horizontal arc or circle?
Use a drawing aid to join the points.
What is step 7 to create a horizontal arc or circle?
Draw the arc.
What is step 8 to create a horizontal arc or circle?
Add the centre lines.
