Welcome to 3D Visualization and the Geowall Christian Educators Annual Fall Conference October 2005...
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Transcript of Welcome to 3D Visualization and the Geowall Christian Educators Annual Fall Conference October 2005...
Welcome to 3D Welcome to 3D Visualization and the Visualization and the GeowallGeowall
Christian Educators Annual Fall ConferenceOctober 2005
The King’s University College, Edmonton
Dr. Brian MartinDr. Peter MahaffyThe King’s Centre for Visualization in Science
The Myth of Visualization as “Seeing is Believing” A Simple Task…
Watch the white team and count the exact number of times the white team passes the ball back and forth
Workshop Goals… Acquaint you with current best practices in
developing science visualizations Provide you with sufficient technical understanding
to set up your own Geowall Provide you with insights into presently available
software options to use with Geowall Assist you in applying Geowall technology to your
visualization interests Work collectively on understanding the educational
application of Geowall The best kept secret
The King’s Center for Visualization in Science (KCVS)
Explore ways in which visualization (not just computer based) can be used to enhance understanding: Among students Among researchers
Explore ways to implement visualizations into teaching at both secondary and post secondary levels
To work within international communities of scholars researching topics related to visualization
KCVS: Past, Present, Future
Modular Approach to Physics Project (MAP) 1997 – 2004
Gordon Research Conferences Centres for Research in Youth, Science
Teaching and Learning - CRYSTALS
Gordon Research Conference on Visualization in
Science & Education,Oxford, July 2005
Mahaffy (Chair)Martin (Workshop Leader)
Flowing water in SE Jordan
NASA Satellite Image
New emphases
Visualization in nanotechnology Best practices in production and dissemination of
educational visualizations Visualization in genomics and systems biology Computer graphics / cognitive science interface Visualization for public understanding of science Physical models and touch in forming mental models Geo-Wall 3D visualization applied to other disciplines
http://www.grc.org/
King’s, KCVS and CRYSTALS
5 year, 200K/a, Mahaffy (co-PI), Martin (management team &co-PI)
Project involves U of A, King’s, 3 other post-secondaries, Edmonton Schools, Telus World of Science and others
Current projects KCVS will play a role in: Visualizing Global Climate Change (with NSF)
Ethical Use of Chemicals (with IUPAC)
Major role for undergraduate student researcher/programmers
Refresher course on polarized light… Plane polarized light – what is it? Simple (and fun!) demos with polarized light
Scotch Plastics De-polarizers
Tape!
I. Geowall – Technical Considerations Uses 2-matched DLP
projectors (“left” & “right”) each outputting a plane polarized image rotated 900 wrt the other.
Screen is “daylite” type – polarization preserving
Eyeglasses “decode” left and right eye information – your brain does the rest!
Geowall – Technical Considerations
Left-channel image Right-channel image
Left channel image is projected through the
left channel DLP projector and is plane-polarized as shown
Right channel image is projected through the
right channel DLP projector and is plane-
polarized as shown
Geowall – Technical Considerations Projectors are stacked
vertically with 3 rotational and translational degrees-of-freedom
Computer should be equipped with a video board capable of running 2 monitors
Passive stereo – image “stacking”
Crude alignment can be achieved using separate monitor windows from each projector
Geowall – Technical Considerations Left and Right channel
polaroids are placed in front of the lens – avoid touching the lenses as conducted heat will quickly (< 1 hour) degrade filters
Final alignment achieved by using stereoviewer and the Geowall alignment image
Not quite!BetterGood (not perfect)!
Congratulations – you are readyCongratulations – you are ready for stereo projection!for stereo projection!
II. Software – Creating Stereo Images Two parts:
Creating or capturing L and R channel images
Combining L and R channel images.
More on Creating Stereo Images Digital
Camera Two images
contain all of the stereo information needed for your brain to produce a stereo pair
Translate camera L to R
More on Creating Stereo Images 3D Image rendering
software Blender – freeware
(outstanding package but steep learning curve)
Bryce (more accessible but not free)
Either offset “camera” or scene and render both L and R channel images.
Combining Left and Right Channels “Do-it-yourself”:
GIMP (freeware – excellent!) Fireworks, Photoshop etc
Stereo Image Software Pokescope (low cost < $30USD)
III. Free Software that Supports Stereo Projection Chemistry/Biology:
JMOL Pymol VMD Protein Explorer
Physics/Astronomy VPython Astrowall suite Wallview
IV. Using 3D Projection to Enhance Student Understanding Astronomy:
Understanding phases, eclipses Physics
Magnetic fields around wires Organic Chemistry
Stereo chemistry Biochemistry
DNA, protein structure, etc
The Importance of Multiple Representations at the Molecular LevelRoy Tasker, Univ. Western SydneyModels in Chemistry
“The most powerful thing you can do when you’re learning chemistry is to zoom down, in your mind’s eye, to the molecular level and try to imagine what is going on and in a sense, try to understand the personalities of the reactants and products…
Having each type of model show a different aspect is ideal. Because then students don’t look at a particular model and say: that’s reality.”
"Since garlic hath powers to save from death, bear with it though it makes unsavory breath"
Robert of Normandy, 1100 AD Literature Reports
Allium sativum
• Broad spectrum antibacterial activity, including Helicobacter pylori• Antifungal activity• Antiviral activity• Normalization of plasma lipid levels• Stimulates lymphocytes and elicits
anti-tumor effects• Anti-hypertensive effects• Bacillus anthracis inhibition?
2D TLC of dichloromethane
garlic extract
Several compounds
inhibit Bacillus subtilis growth
1st D
imen
sion
– L
ess
Pola
r S
olv
en
t
2nd Dimension–More Polar Solvent
Initial Spot
Mode of Action of Allicin
Interferes with microbial cellular function
DNA & RNA synthesisSignal transduction & apoptosis
Blocks the active site on sulfhydryl enzymes
from visual import *
#simple program to illustrate lunar nodes and eclipse conditions#In this example an eclipse is possible - the line of nodes points at the sunscene.stereo='passive'scene.stereodepth = 1scene.ambient = 0.005scene.lights = [vector(1,0,0)]scene.ambient=0.1
orb1=ring(pos=(1,1,1), axis=(0,1,0), radius=50, thickness=0.2, color = color.red)orb2=ring(pos=(1,1,1), axis=(0,1,0.2), radius=50 , thickness=0.2)earth = sphere(pos=(1,1,1), radius=5, color=color.blue)#sun = sphere(pos=(500,0,1), radius=15, color = color.yellow)lineofnodes = cylinder(pos=(-50,1,1), axis=(100,0,0), color=color.yellow, radius =0.4)moon = sphere(pos=(50,1,1), radius = 2)
angle = 0delta = 2e-2while 1: rate(10) angle = delta moon.rotate(angle=angle, axis=(0,1,0), origin=(1,1,1)) #lineofnodes.rotate(angle=angle/100, axis=(0,1,0), origin=(1,1,1))
Example using VPython
…easy as this!
Resources…
Geowall Site: http://geowall.geo.lsa.umich.edu/ Vpython: http://vpython.org/ VMD: http://www.ks.uiuc.edu/Research/vmd/ Protein Explorer:
http://www.umass.edu/microbio/chime/pe/protexpl/frntdoor.htm Gimp: http://www.gimp.org/ Blender: http://blender.org/
Contacts: Paul Morin @ Geowall ([email protected]) Brian Martin ([email protected])