Decoding
Marks
and
Cha
nnels
Learning Goal:
Train yourself in decoding charts so that you can better understand
how virtually every single visualization can be described using
the
language and rules
of visual encoding and decomposed into low
–
level
graphical components.
How do you know if you are on
the right track?
You can describe a chart in terms of its
graphical components.
Task:
For each of the 5 charts following, you will identify
data items
and the
marks
used to encode
them, and
data attributes
and the
channels
used to encode
them. (50 point
s total, 10 points for each chart)
For each chart, you’ll fill in
Marks (5 points):
·
Mark of type X encodes data item Y;
· Mark of type X encodes data item Y;
·
…
Channels (5 points):
·
Cha
nnel X encodes data attribute Y;
· Channel X encodes data attribute Y;
· …
Note that for underneath each chart, there is a link to a web page providing details
about the project, including information about the data and in many cases supporting
interactivity which you can refer to when complet
ing this assignment.
For now just
encode what is represented in the static image in this document
, no need to include
interactivity which is being used a lot for emphasis (hover highlight, animated
transitions, reordering, details popups, small multiples z
ooming).
Think about how you would reconstruct the dataset underlying this picture.
Remember that multiple channels could redundantly encode the same attribute.
Notice that a mark is not every single bit of ink on the page
–
for example, labels and
annotati
ons are not marks in the sense that we’re doing this analysis!
Submission instructions:
Save your answer in a Word document and name is
MarksChannels_FL where FL are your first and last name initials.
Chart 1
https://flowingdata.com/2016/06/28/distributions-of-annual-income/ (Links to an external site.)
Chart 2
http://project-ukko.net/ (Links to an external site.)
Chart 3
http://www.nytimes.com/interactive/2008/05/05/science/20080506_DISEASE.html (Links to an external site.)
Chart 4
http://www.nytimes.com/interactive/2012/02/12/us/entitlement-map.html (Links to an external site.)
Chart 5
https://p
udding.cool/2017/03/redraft/ (Links to an external site.)
Decoding Marks and Channels
Learning Goal:
Train yourself in decoding charts so that you can better understand
how virtually every single visualization can be described using the language and rules
of visual encoding and decomposed into low
–
level graphical components.
How do you know if you are on
the right track?
You can describe a chart in terms of its
graphical components.
Task:
For each of the 5 charts following, you will identify
data items
and
the
marks
used to encode them, and
data attributes
and the
channels
used to encode
them. (50 point
s total, 10 points for each chart)
For each chart, you’ll fill in
Marks (5 points):
·
Mark of type X encodes data item Y;
·
Mark of type X encodes data item Y;
·
…
Channels (5 points):
·
Channel X encodes data attribute Y;
·
Cha
nnel X encodes data attribute Y;
·
…
Note that for underneath each chart, there is a link to a web page providing details
about the project, including information about the data and in many cases supporting
interactivity which you can refer to when complet
ing this assignment.
For now just
encode what is represented in the static image in this document
, no need to include
interactivity which is being used a lot for emphasis (hover highlight, animated
transitions, reordering, details popups, small multiples z
ooming).
Think about how you would reconstruct the dataset underlying this picture.
Remember that multiple channels could redundantly encode the same attribute.
Notice that a mark is not every single bit of ink on the page
–
for example, labels and
annotati
ons are not marks in the sense that we’re doing this analysis!
Submission instructions:
Save your answer in a Word document and name is
MarksChannels_FL where FL are your first and last name initials.
Chart 1
Decoding Marks and Channels
Learning Goal: Train yourself in decoding charts so that you can better understand
how virtually every single visualization can be described using the language and rules
of visual encoding and decomposed into low-level graphical components.
How do you know if you are on the right track? You can describe a chart in terms of its
graphical components.
Task: For each of the 5 charts following, you will identify data items and
the marks used to encode them, and data attributes and the channels used to encode
them. (50 points total, 10 points for each chart)
For each chart, you’ll fill in
Marks (5 points):
Mark of type X encodes data item Y;
Mark of type X encodes data item Y;
…
Channels (5 points):
Channel X encodes data attribute Y;
Channel X encodes data attribute Y;
…
Note that for underneath each chart, there is a link to a web page providing details
about the project, including information about the data and in many cases supporting
interactivity which you can refer to when completing this assignment. For now just
encode what is represented in the static image in this document, no need to include
interactivity which is being used a lot for emphasis (hover highlight, animated
transitions, reordering, details popups, small multiples zooming).
Think about how you would reconstruct the dataset underlying this picture.
Remember that multiple channels could redundantly encode the same attribute.
Notice that a mark is not every single bit of ink on the page- for example, labels and
annotations are not marks in the sense that we’re doing this analysis!
Submission instructions: Save your answer in a Word document and name is
MarksChannels_FL where FL are your first and last name initials.
Chart 1