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mercredi, août 4 2010
Par Hilaire Fernandes le mercredi, août 4 2010, 19:26
I am please to announce the Dr. Geo release 10.08 for the XO OLPC laptop. This version comes with a new user interface, more sketch examples, a lot of bugs removals and small improvements, visit the Dr. Geo home page to download and to install the new XO bundle in your XO OLPC laptop.
Discover & Enjoy!
vendredi, juillet 30 2010
Par Hilaire Fernandes le vendredi, juillet 30 2010, 14:12
I have release version 10.08 of the universal DrGeo application running identically on GNU/Linux, Windows and Mac OS X.
The application is self sufficient and it can be installed on the workstation hard disk or directly on usb stick.
Instructions, screen shots and download at the DrGeo home page.
mardi, juillet 20 2010
Par Hilaire Fernandes le mardi, juillet 20 2010, 11:04
What is specific to the XO OLPC laptop is its usability under direct sun exposure: both its dual screen mode and its user interface (Sugar) is designed for that.
To make Pharo Smalltalk a reference development platform on XO, it must come with an user interface matching the original Sugar one. I have tested the work in progress of the Sugar theme for Pharo Smalltalk in real conditions: an XO laptop + Pharo Smalltalk with Sugar theme + direct sun exposure.
Feel free to comment and to suggest at the end of this review.
Follow a few screen shots:
samedi, juillet 17 2010
Par Hilaire Fernandes le samedi, juillet 17 2010, 20:24
Here is a screen shot of a Sugar theme for the Pharo Smalltalk user interface.
The idea is really to get Pharo Smalltalk as a platform to develop educative application for the XO OLPC Sugar based kid notebook.
Moreover, with Pharo Smalltalk kids really get access to source code they can examine and modify while the application is running. DrGeo will also take advantage of this theme.
This UI theme try to follow the Sugar UI theme used in the laptop. There are still many points to improve, if you are interested or you want to comment please do it bellow.
The idea of this theme is to get an usable UI with a black and white screen.
jeudi, juillet 8 2010
Par Hilaire Fernandes le jeudi, juillet 8 2010, 19:47
With DrGeo, in a workspace, an interactive Sierpinski triangle can be computed when executing:
triangle := [:s1 :s2 :s3 :n |
c segment: s1 to: s2;
segment: s2 to: s3;
segment: s3 to: s1.
n >0 ifTrue:
[triangle
value: s1
value: (c middleOf: s1 and: s2) hide
value: (c middleOf: s1 and: s3) hide
value: n-1.
triangle
value: (c middleOf: s1 and: s2) hide
value: s2
value: (c middleOf: s2 and: s3) hide
value: n-1.
triangle
value: (c middleOf: s1 and: s3) hide
value: (c middleOf: s2 and: s3) hide
value: s3
value: n-1.]].
c := DrGeoCanvas new.
triangle
value: (c point: 0 @ 3)
value: (c point: 4 @ -3)
value: (c point: -4 @ -3)
value: 3.
Of course, the result is all interactive.
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