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Engineering drawing
Published in Roger Timings, Engineering Fundamentals, 2007
Pictorial sketches can be in oblique projection or in isometric projection. Figure 5.27 shows you how to make a sketch in oblique projection. Sketch ‘boxes’ to contain the outline of the finished drawing.Lightly sketch in the details of the component or assembly being drawn.Go over the outline more heavily to make it stand out.Remove any construction lines that may cause confusion.Add dimensions as required.
Methods of Spatial Visualisation
Published in Ken Morling, Stéphane Danjou, Geometric and Engineering Drawing, 2022
Figure 4.9 shows a shaped block drawn three times in oblique projection but at different angles. All drawings show the front face of the block drawn in the plane of the paper and the side and top faces receding at 30°, 45° and 60° respectively. An oblique line is one which is neither vertical nor horizontal, and the receding lines in oblique projection can be at any angle other than 0° or 90° as long as they remain parallel in any one drawing. In practice, for manual drafting it is usual to keep to the set square angles and, of the three to choose from, 45° is the most widely used.
Design and graphical communication
Published in Mike Tooley, Engineering GCSE, 2012
The most obvious way of improving Figure 1.58 is to attempt to draw the component in perspective (i.e. in a 3D view). The easiest way of doing this is to use a simple pictorial technique called oblique drawing. Figure 1.59 shows a simple oblique drawing using both cavalier oblique and cabinet oblique projection.
A method of using image-view pairs to represent complex 3D objects
Published in Cogent Engineering, 2018
Lihong Luo, Jianqing Mo, Xian Yang
First, we must calculate the Oblique Projection of the Vertex on an Image Plane in the IVP Object. Let us consider the problem shown in Figure 5. In the parallel light condition (the unit vector of light is ), P is a point in space. What are the coordinates of its projection on the plane (P0, ) (note: is the normal unit vector)?