← Graphic Communication syllabus

ScotlandGraphic Communication

Area: 3D and pictorial graphic communication

5 dot points across 5 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

Which 3D CAD modelling techniques build a solid model, and how is a 2D sketch turned into 3D geometry?

3D CAD modelling techniques: sketch-based modelling with constraints, the feature commands (extrude, revolve, sweep, loft), and editing features (shell, fillet/chamfer, array and boolean) to build and modify a solid model.
An SQA Higher Graphic Communication answer on 3D CAD modelling techniques, covering sketch-based modelling and constraints, the feature commands extrude, revolve, sweep and loft, and editing features such as shell, fillet, array and boolean operations.
12 min answer →

How are CAD parts assembled with constraints, and how does rendering produce a realistic presentation image?

CAD assembly and rendering: assembling components with assembly constraints (mate, align, concentric), exploded views and animation, and producing realistic renders with materials, lighting, cameras and an environment.
An SQA Higher Graphic Communication answer on CAD assembly and rendering, covering assembling parts with mate, align and concentric constraints, exploded views and animation, and producing realistic renders with materials, lighting, cameras and an environment.
11 min answer →

How does perspective drawing create a realistic, life-like view, and how does it differ from isometric?

Perspective drawing: one-point and two-point perspective, the horizon line, vanishing points, the picture plane and station point, and why perspective looks realistic but is not measurable.
An SQA Higher Graphic Communication answer on perspective drawing, covering one-point and two-point perspective, the horizon line, vanishing points, the picture plane and station point, and why perspective is realistic but not measurable.
11 min answer →

How do isometric, planometric and oblique drawings show a product in three dimensions, and when is each used?

Pictorial drawing methods: isometric (30 degree axes), planometric (true plan rotated) and oblique (cavalier and cabinet) drawing, the axis angles and scaling of each, and choosing the right method for the object and purpose.
An SQA Higher Graphic Communication answer on pictorial drawing methods, covering isometric, planometric and oblique (cavalier and cabinet) drawing, their axis angles and scaling, and how to choose the right method for an object and purpose.
11 min answer →

How do freehand sketching and rendering techniques communicate ideas quickly and make a drawing look three-dimensional?

Freehand sketching and manual rendering: crating and construction lines for proportion, line quality, and rendering techniques (tone, shading, highlights, reflections and texture) to suggest form, material and light.
An SQA Higher Graphic Communication answer on freehand sketching and manual rendering, covering crating and construction lines, line quality, and the rendering techniques (tone, highlights, reflections, texture) that suggest form, material and light.
11 min answer →