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(All drawings are copyright, Christoher Dean.)
Drawing for 2010 publication on rangeland soil carbon, showing 4D sources from various tree ages in stand development.
Drawn from photographs of trees at Cooralya Station, WA (Australia) and from other people's diagrams of root structure.
Published in Ecological Engineering (2012) 38(1), 51-64.
Drawings from my PhD back in 1982-1986 at The University of Adelaide, 'Crystallography of Transformation Mechanisms in Inorganic Compounds'.
Drawn from my hand ('still life').
Right hand rotation.
This direction uses positive angles in mathematics and gives correct solutions.
The left hand rotation that surveryors use rquires a minus sign in mathematics.
Projected reciprocal lattice points (planes) on flat projection for projection types: '1' stereographic, '2' orthographic, and '3' gnomonic. Fig. 7.5(a) in my thesis and published in J. Applied Crystallography, 1985.
Drawn from my hand ('still life').
Note errors in finger nails on two smallest fingers, but thumb is correct.
Right hand coordinate system.
The left hand system has the z-axis goign the other way and is only used in some more-basic computer graphics.
Diffraction spot of a plane (reciprocal lattice point) for a cylindircial Laue photogrpah (cylindrical film). Fig. 7.5(b) in my thesis and published in J. Applied Crystallography, 1985.
Drawn from device.
'Figure 7.4 Diamond anvil pressure cell showing'... '(b) skew view of assembled cell without oposing half.'
Diagrammatic drawning.
'Figure 7.4 Diamond anvil pressure cell showing (a) scaled cross-section of sample chamber...'
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