Tonyforster

Joined 25 September 2008
8,422 bytes added ,  21:51, 23 April 2014
Line 1: Line 1: −
http://tonyforster.blogspot.com/
+
== Me ==
 +
http://tonyforster.blogspot.com/ blog, random thoughts, Turtle Art samples
 +
 
 +
http://www.freewebs.com/schoolgamemaker/  game programming and learning
    
forster at ozonline dot com dot au
 
forster at ozonline dot com dot au
    
Interests:
 
Interests:
Activities which maximise the opportunity for self-directed learning: low floor, wide walls and high ceiling with particular emphasis on the walls and ceiling. My favourites: turtleart, scratch, etoys.
+
Activities which maximise the opportunity for self-directed learning: low floor, wide walls and high ceiling with particular emphasis on the walls and ceiling. My Sugar favourites: [[Activities/TurtleArt-0.88 | Turtleart]], Scratch, Etoys. [http://www.yoyogames.com Game Maker] still my Windows favourite.
   −
Currently user testing turtleart and Sliderule
+
Currently user testing Turtleart and Sliderule, experimenting with [[Activities/Pippy | Pippy]]. Supporting the [http://www.seaton-olpc-ug.org/?q=node/54 Timor Leste deployment].
   −
== Preschool student Activities==
+
== Preschool student Activities, some links==
 
Radia Perlman in the 70s when at student at MIT did extensive experiments with preliterate children and the LOGO turtle and built a number of interfaces for them. She also spent some time at Xerox PARC and did many similar experiments with chldren 3 years on up.
 
Radia Perlman in the 70s when at student at MIT did extensive experiments with preliterate children and the LOGO turtle and built a number of interfaces for them. She also spent some time at Xerox PARC and did many similar experiments with chldren 3 years on up.
      
http://www.formatex.org/micte2006/virtual/pdf/582.pdf
 
http://www.formatex.org/micte2006/virtual/pdf/582.pdf
Line 37: Line 39:  
The following graphic is a discussion starter
 
The following graphic is a discussion starter
   −
[[Image:Textfreeturtle.jpg]]
+
[[Image:Textfreeturtle.jpg|300px]]
   −
or another [[http://wiki.sugarlabs.org/images/c/cd/Iconic_Turtle_Art.odt suggested layout]]
+
or another [[http://wiki.sugarlabs.org/images/c/cd/Iconic_Turtle_Art.odt suggested layout]]]
   −
== Text-less outdoor lesson ==
+
== Text-less outdoor lesson for Turtle Art ==
[[File:Outdoor-TA.jpg]]
+
[[File:Outdoor-TA.jpg|400px]]
    
== Sliderule ==
 
== Sliderule ==
Line 50: Line 52:  
* [[File:Slideruletute.pdf]] tutorial
 
* [[File:Slideruletute.pdf]] tutorial
   −
== Software Freedom Day Melbourne 2010 ==
+
== Presentations - Software Freedom Day Melbourne ==
 
[[File:Softwarefreedomday10.pdf]] presentation
 
[[File:Softwarefreedomday10.pdf]] presentation
    
http://luv.asn.au/sfd2010/ photos
 
http://luv.asn.au/sfd2010/ photos
 +
 +
[[File:Olpc-rotary.odp]]
 +
 +
[[File:Ictev11.odp]]
    
== Sea Surface Temperature Mapping ==
 
== Sea Surface Temperature Mapping ==
Sea surface temperature mapping
+
Sea surface temperature mapping, inspired by http://oceanpc.org . Described here is a program to read and display the temperature data which is available at http://www.ncdc.noaa.gov/oa/climate/research/sst/sst.html  
Inspired by http://oceanpc.org this reads temperature data available at http://www.ncdc.noaa.gov/oa/climate/research/sst/sst.html
+
 
=== Challenges ===
+
The data format is described at ftp://eclipse.ncdc.noaa.gov/pub/ersstv3b/README
 +
 
 +
The first record in the file [ftp://eclipse.ncdc.noaa.gov/pub/ersstv3b/ascii/ ersst_v3b_2010_2019.asc] , the 2010 to 2019 data set, reads:
 +
-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999  -19    13    18    11    7    25    64  132  255  427  607  791  990  1198  1408  1616  1816  1999  2149  2258  2327  2360  2365  2355  2347  2359  2393  2443  2500  2568  2654  2736  2789  2826  2869  2904  2911  2903 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999  1489  1432 -9999 -9999 -9999 -9999 -9999  713 -9999  656  715  780  796  744  669  596  476  298  156  113    70  -134  -180  -180  -180  -180
 +
 
 +
-9999 represents land, the other numbers are degrees C x100
 +
This record represents a line running from the south pole through to the north pole in 2 degree increments at longtitude 0 for the first month and year. The next record is for lattitude 2 degrees east and so on.
 +
 
 +
<b> Sample Pippy(Python) program </b>
 +
 
 +
This Pippy(Python) mapping program is supplied as a starter and as inspiration for further investigation
 +
 
 +
[[File:Write Activity sst.odt]] Pippy code as open office doc. Download and open in Journal. Copy from the Write session, paste into Pippy and run.
 +
 
 +
Alternatively download this content bundle [[File:Sst.xol]] to the journal, starting the bundle from the journal installs the bundle as off line web content which is accessible from the Browse home page as sst in the Science category. This content includes the Python source and a sample data file.
 +
 
 +
[[File:Sstcontentbundle.jpg|250px]]
 +
 
 +
 
 +
<b> Challenges </b>
 
* Display the other months and years in the file
 
* Display the other months and years in the file
 
* Display the month and year in the title bar
 
* Display the month and year in the title bar
 
* Animate the display
 
* Animate the display
 
* Do a legend
 
* Do a legend
 +
* Display the temperature at the cursor
 
* Map other data
 
* Map other data
 
* Error checking
 
* Error checking
 
* Display partly corrupted data sets without crashing
 
* Display partly corrupted data sets without crashing
 +
* Create models of ocean or atmosphere
 +
* More ideas at http://oceanpc.org , http://marinedataliteracy.org/index.html and http://data.worldbank.org/
 +
 +
 +
[[File:Screenshot of "pygame window".png|300px]]
 +
 +
 +
(This program has also been [http://www.freewebs.com/schoolgamemaker/#lobject done in Game Maker] on the Windows OS)
 +
 +
==Reflashing Sugar==
 +
===Unsigned XO1===
 +
[http://wiki.laptop.org/go/Clean-install_procedure See]
 +
 +
*Get a developer key and unlock your XO
 +
*Download the OS image (e.g. osxxx.img) and its CRC file (e.g. osxxx.crc) to USB
 +
*Press escape at power on for the OK prompt
 +
  probe-usb copy-nand disk:\osNNN.img
 +
 +
 +
Will not work if there are 2 partitions, [http://wiki.laptop.org/go/11.2.0]
 +
 +
To install from Open Firmware on an unlocked XO-1, download the .onu and .uim files and run:
 +
 +
  ok update-nand u:\osXX.onu
 +
 +
===Unsigned XO1.5===
 +
[http://dev.laptop.org.au/projects/xo-au/wiki/Installing_unsigned_builds see]
 +
*Get a developer key and unlock your XO
 +
*Download osxxx.zd, osxxx.zsp.fs.zip, (seem to only need the zd file)
 +
*rename the zip file to fs.zip
 +
*Pressing the "check mark"(tick) game key, Turn on the laptop, (don't seem to need the tick)
 +
*press ESC (X) to get to the OFW prompt "ok",
 +
  fs-update u:\osxxx.zd
 +
 +
===Signed builds===
 +
[http://wiki.laptop.org/go/Release_notes/10.1.2#Installation see]
 +
 +
*Download osxxx.img, osxxx.img.fs.zip to the top directory of a USB drive
 +
*(osxxx.zd,osxxx.zsp.fs.zip on XO1.5),
 +
*Rename the zip file to fs.zip
 +
* hold the 4 game keys at boot
 +
 +
===Deployment key signed builds===
 +
http://dev.laptop.org.au/projects/xo-au/wiki/Installing_signed_builds
 +
 +
 +
===Nand blaster XO1.5===
 +
http://wiki.laptop.org/go/Nandblaster_for_XO-1.5
 +
 +
==Dodo mobile broadband on the XO==
 +
Connected to the [http://www.dodo.com.au/wireless/ Dodo mobile broadband] network with the Huawei E160E
 +
 +
* username my username
 +
* password my password
 +
* number *99#
 +
* APN dodolns1
 +
* PIN blank
 +
* PUK blank
 +
 +
(best with power management turned off)
 +
 +
 +
==Sugar security==
 +
Some Activities are 'protected', that is they can't be deleted. This also means that the Activity can't be downgraded or crossgraded  to the same revision number.
 +
 +
To achieve this you need to delete the Activity's directory in
 +
 +
/home/olpc/Activities
 +
 +
This is easily done in older builds in Gnome but newer builds have a hidden and protected Activities directory
 +
 +
sudo gedit
 +
 +
allows you to edit files but not delete
 +
 +
chmod 777 ~/Activities
 +
chmod 777 ~/Activities -r    #contents too?
 +
 +
unprotects the directory but it is still hidden, in the file manager <i>nautilus</i> check show hidden files
 +
 +
 +
To automate this every time Gnome starts, add the following 2 commands to System, Preferences, Startup applications
 +
 +
  rm .hidden
 +
  chmod 777 Activities
 +
 +
==Enabling debug output==
 +
Edit /home/olpc/.sugar/debug and uncomment :
 +
  export SUGAR_LOGGER_LEVEL=debug
 +
 +
==Starting Gnome==
 +
If not in my settings
 +
echo gnome > /home/olpc/.olpc-active-desktop
 +
and restart
 +
 +
 +
==Setting the clock==
 +
From firmware, using the internet, networkname is your modem/router eg DLINK
 +
ok  essid networkname
 +
ok  ntp-set-clock pool.ntp.org
 +
ok  .clock
 +
Worked despite timeout message
 +
 +
 +
or http://wiki.laptop.org/go/Fix_Clock#Reprogram_the_time.2Fdate
 +
 +
==Text dungeon==
 +
A text dungeon game for literacy and numeracy
 +
 +
Most of this page transferred to [[Activities/Textdungeon]] , just the command line version here
 +
 +
[[File:Text dungeon.jpg|300px]]
 +
 +
The dungeon [[File:Sampledungeon.doc | description file]]
 +
 +
[[File:Textdungeon.doc | the program]] is a version of the program's Python code which works from the command line
 +
 +
[[File:Textdungeon1.xo]] is a Sugarised install bundle, works Sugar 0.88 - 0.92
 +
 +
[[File:Textdungeon2.xo]] Sugar compliant icon, do not load sample file if resuming, backspace supported, journal entry saves progress)
 +
 +
 +
===Keyboard commands===
 +
h - help
 +
 +
f - forward
 +
 +
r - right
 +
 +
l - left
 +
 +
b - list backpack contents
 +
 +
p item - pick up item
 +
 +
d item - drop item
 +
 +
u item - use item
 +
 +
q - quit
 +
 +
 +
==1.75 accelerometer ==
 +
[[File:Screenshot of sugar-activity 3 axis.png|300px]]
 +
 +
The vertical axis is raw reading/4 so 1G=250
 +
 +
[[File:Turtle Art Activity 3 axis.ta]]
 +
 +
 +
==Screenshots in Sugar==
 +
===Simple screenshot===
 +
To take screenshots press Alt 1
 +
 +
This will capture the screen but not the mouse cursor
 +
 +
===Screenshot with cursor===
 +
To also capture the mouse cursor, install gnome-screenshot. Type the following in Terminal:
 +
 +
sudo yum install gnome-utils
 +
 +
You can then start the interactive version of gnome-screenshot:
 +
gnome-screenshot --interactive
 +
 +
[[File:Gnome-screenshot.png|350px]]
 +
 +
Check that you have the right options selected and that 'Include pointer' is selected, then click Take Screenshot. Do not navigate away to the screen you want the screenshot of because you will be unable to navigate back to the utility. At this point we are just checking that the options are correct.
 +
 +
[[File:Gnome-screensh-2.png|350px]]
 +
 +
Select a suitable save location such as 'Documents' and click Save.
 +
 +
Now you are ready to take a screenshot. Start gnome-screenshot from Terminal with a suitable delay, eg. 2 seconds
 +
 +
gnome-screenshot -d 2
 +
 +
Immediately go to the screen you wish to capture, position the cursor where you want it, get the menus etc. as you want them and wait for the dialog box. Click Save. (Later versions of Sugar allow you to access the saved file in Documents but the folder contents are not updated, you may need to switch between Journal and Documents to see the updated file listing.)
 +
 +
==Miscellaneous_Technical_Notes==
 +
http://wiki.laptop.org/go/User:Kevgor/Miscellaneous_Technical_Notes
 +
 +
==GIT and patches==
 +
===GIT local repository===
 +
sudo install git
 +
 +
clone the git of the Turtle, in a terminal, make:
 +
 +
git clone  git://git.sugarlabs.org/turtleart/mainline.git
 +
 +
In the mainline folder there are all turtle's files..
 +
 +
===Patch===
 +
sudo yum install patch
 +
or
 +
sudo yum install patch --nogpg
 +
 +
Should be a "raw patch" link (eg. 2b4ecb0cc7095f47fc944c54512e055c21537ab5.patch)
 +
 +
1. Save that page as a file into ~/Activities/TurtleArt.activity  (eg patching Turtle Art)
 +
 +
2. From terminal run the patch command as follows:
 +
 +
patch -p1 < 2b4ecb0cc7095f47fc944c54512e055c21537ab5.patch
 +
 +
That is it. (Note, you should be able to use autocomplete when typing
 +
the command line by hitting tab after typing the first few letters of
 +
the patch file name.)
 +
   −
[[File:Write Activity sst.odt]] Pippy code
+
[[Activities/Butialo]]
http://www.box.net/shared/3jgpkdibgq this zip file contains a surface temperature data set
+
[[Features/Parental_controls]]
[[File:Screenshot of "pygame window".png]]
 
2,486

edits