Homework 7
16-311 Introduction to Robotics
Prof. Howie Choset
Due at beginning of class on Wednesday, Feb 29th
- (80%) Group: Lab 6
- (20%) Individual:
Moved from the previous homework:
- Draw the Voronoi diagram for the workspace in Figure 1. We suggest
that you print out the sample environment and draw your answer on the
printout.
- On a separate piece of paper, draw the Voronoi diagram for the configuration
space of the same envrionment.
FIGURE 1
- 1. Based on the material presented in class thus far, make up a reasonable question for the final exam. These questions will be posted on the web site and we will pick from this pool of questions for the final. We recommend considering Bloom's Taxonomy (it is described here , among other places). The best questions will fall into the evaluation, analysis, or synthesis categories.
- 2. Draw two Voronoi diagrams for the following environment: one using
the Euclidean distance metric and the other using the Manhattan distance
function (L1 metric). For the Euclidean metric, you can envision and circle that
expands and contracts; when two or more points on the circle touch an
obstacle, the center is on the Voronoi diagram. For the Manhattan metric,
use a diamond. Hand in a hard copy in class.



Figures 2 and 3 show the workspace and configuration space for a
two li$
manipulator with no joint limits. The robot is shown at the start
configur$
- Plan the shortest path in configuration space from
the sta$
configuration to the goal configuration. Draw the path on the
figure.
Note: Theta 1 is the first joint angle, and Theta 2 is the second
join$
angle.
- b. Draw five intermediate configurations between the start and
goal
confi gurations along this path, and show their location in the
config$
space, again along the path.

Turn in:
Submit hardcopy for individual assignment at the beginning of class.
Last updated 12/15/09 by Alan Kraut