google&earth&and&projectdata -...
TRANSCRIPT
Google Earth and Project Data
April 10, 2014
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 1
Reminders
• All proposal feedback last night – QuesEons, concerns?
• You should have started your project by now! – Time is the biggest roadblock – Lots of hours available over the weekend – Email for help!
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 2
Reminders
• Review ACT 2-‐7 and HW 2-‐4
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 3
Reminders
• Review ACT 2-‐7 and HW 2-‐4 • Have a small dataset for tes,ng as you develop; add the full data only aVer things seem to be working
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 4
Reminders
• Review ACT 2-‐7 and HW 2-‐4 • Have a small dataset for tes,ng as you develop; add the full data only aVer things seem to be working
• Do not assume there will be some way to resolve an issue down the road
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 5
Reminders
• Review ACT 2-‐7 and HW 2-‐4 • Have a small dataset for tes,ng as you develop; add the full data only aVer things seem to be working
• Do not assume there will be some way to resolve an issue down the road
• You will lose points if you do not include test funcEons like in HW 2-‐3 and HW 2-‐4
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 6
Today
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 7
Today
• Google Earth and map-‐based data • Modifying and creaEng map data files • Overview of colors and number systems • Project 2 work Eme
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 8
Google Earth
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• If you’re on a laptop, download and install Google Earth
• Download CIT.kml from the course webpage
Google Earth
10 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
• Play around with Google Earth
Google Earth
11 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
• Play around with Google Earth • Do Task 1 in ACT 3-‐2 – Try zooming, panning, and creaEng pins on the map
Google Earth
12 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
• Play around with Google Earth • Do Task 1 in ACT 3-‐2 – Try zooming, panning, and creaEng pins on the map
• Do Task 2
Google Earth
• Now open CIT.kml in a text editor and try changing the following: – Name – DescripEon – Size of Pin – Coordinates
– What about color?
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hbp://geographyworldonline.com/tutorial/instrucEons.html
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Hm, let’s talk about color
14 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Today
• Google Earth and map-‐based data • Modifying and creaEng map data files • Overview of colors and number systems • Project 2 work Eme
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 15
KML Color Codes
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ff0000ff O = Opacity B = Blue G = Green R = Red
O B G R
These are two-‐digit hexadecimal numbers.
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Two-‐Digit Numbers
Decimal (10 unique values per digit): 0-‐9 00 01 02 03 04 05 06 07 08 09 ?
17 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Two-‐Digit Numbers
Decimal (10 unique values per digit): 0-‐9 00 01 02 03 04 05 06 07 08 09 10 11 12 ... 99
18 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Two-‐Digit Numbers
Decimal (10 unique values per digit): 0-‐9 00 01 02 03 04 05 06 07 08 09 10 11 12 ... 99 Binary (2 unique values per digit): 0-‐1 00 01 ?
19 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Two-‐Digit Numbers
Decimal (10 unique values per digit): 0-‐9 00 01 02 03 04 05 06 07 08 09 10 11 12 ... 99 Binary (2 unique values per digit): 0-‐1 00 01 10 11
20 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Two-‐Digit Numbers
Decimal (10 unique values per digit): 0-‐9 00 01 02 03 04 05 06 07 08 09 10 11 12 ... 99 Binary (2 unique values per digit): 0-‐1 00 01 10 11 Hexadecimal (16 unique values per digit): 0-‐9,a-‐f 00 01 ... 08 09 0a 0b 0c 0d 0e 0f ?
21 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Two-‐Digit Numbers
Decimal (10 unique values per digit): 0-‐9 00 01 02 03 04 05 06 07 08 09 10 11 12 ... 99 Binary (2 unique values per digit): 0-‐1 00 01 10 11 Hexadecimal (16 unique values per digit): 0-‐9,a-‐f 00 01 ... 08 09 0a 0b 0c 0d 0e 0f 10 11 ... fe ff
22 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Two-‐Digit Numbers
Decimal (base 10): 0-‐9 00 01 02 03 04 05 06 07 08 09 10 11 12 ... 99 Binary (base 2): 0-‐1 00 01 10 11 Hexadecimal (base 16): 0-‐9,a-‐f 00 01 ... 08 09 0a 0b 0c 0d 0e 0f 10 11 ... fe ff
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Decimal: 102 = 100 two-‐digit #s
Binary: 22 = 4 two-‐digit #s
Hexadecimal: 162 = 256 two-‐digit #s
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Why hexadecimal?
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Why hexadecimal?
• A variety of reasons, but here are a couple: – A two-‐digit hexadecimal number can have the number of disEnct values as a computer “byte”.
– Easier to type the value of a byte than some other systems, like binary. E.g., 01100100 in binary = 64 in hexadecimal = 100 in decimal
25 CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
KML Color Codes
26
ff0000ff O = Opacity B = Blue G = Green R = Red
O B G R
Hexadecimal (16 digits): 0-‐9,a-‐f 00 01 ... 08 09 0a 0b 0c 0d 0e 0f 10 11 ... fe ff
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences
Today
• Google Earth and map-‐based data • Modifying and creaEng map data files • Overview of colors and number systems • Project 2 work Eme
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 27
Today
• Google Earth and map-‐based data • Modifying and creaEng map data files • Overview of colors and number systems • Project 2 work Eme – By the end of class, you should have all the data files you need for your analysis, and know how to load them into your Python program
CSCI 0931 -‐ Intro. to Comp. for the HumaniEes and Social Sciences 28
Reminders
• You should have started your project by now! – Time is the biggest roadblock – Lots of hours available over the weekend – Email for help!
• Hand in a paragraph update about your Project 2 progress by tomorrow, April 11
• Projects are due on Wednesday, April 16
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