Dr. Geo: Design and manipulate interactive geometric sketches

Dr._Geo

If they have children at home the application that we are going to talk about today it can be quite interesting to them. It allows to organize educational activities in the teaching of geometry, or even other related fields of mathematics.

Dr. Geo is free and open source software released under the GNU GPL license, this application andis oriented to interactive geometry that allows its users to design and manipulate interactive geometric sketches.

This application is multiplatform and runs on a Morphic graphics system so it can be used in GNU / Linux, Mac OS, Windows, Android.

About Dr.Geo.

All the basic characteristics of Dr. Geo they are the same that characterize many other programs for the interactive study of geometry.

In a worksheet, initially white, can directly build geometric objects (points, lines, lines, polygons, places, etc.) with which to make more complex geometric constructions.

Constructions can therefore be manipulated, continuously deforming them, in order to keep its fundamental geometric characteristics unaltered. In this way, the student can realize how the same geometric object can appear in different situations.

Dr. Geo is equipped with commands to measure the lengths and amplitudes of the angles that allow us to empirically verify the validity of many elementary propositions.

In addition to this, all functions that implement isometric and homothetic plane transformations are available.

All the steps taken to complete the different builds can be viewed in a logical tree that can be activated by opening a drop-down menu next to the worksheet.

New version of Dr. Geo

Application was recently updated to its new version 18.06 in which much of the effort was to bring the code from version 3 to version 7 of the Smalltalk Pharo environment with which Dr. Geo is developing.

This new version includes new features and many bug fixes in its previous version works.

In this new update user can insert an instance of such script into their geometric sketch, with optional geometric element parameters.

A script performs calculations and / or modifies other geometric elements once defined, a script is easy to use by the end user.

Now it's easier to manage Smalltalk sketch documents. The new Pharo inspector, used to inspect the attributes of the Smalltalk class instance, can manipulate files and directories on the file system.

DrGeo18.06

With these new tools, user can view, run, edit, delete, create Smalltalk sketch files. Also in this new version of Dr. Geo a new topic has been included, by default the application has a dark theme.

Since Dr. Geo is oriented towards education, its developers have taken into account that the application can be used in projectors so they decided to add a clear theme.

In addition to it full screen mode added, which is quite useful to focus on the tasks that are being done in the application.

Last but not least of the new new features added pWe note the inclusion of a way to share files.

Dr. Geo implements a local area network sharing function which is totally independent from the local network service like NFS, Samba, Windows sharing, etc.

In this way, the person who saves their work in DrGeo.app/MyShares will be able to share these over the local network, since others who are using the application will be able to access these files.

How to install Dr. Geo?

To install this application on your systems must download the following file, it is important to mention that the application is for 32 bits, the link is this.

Si you are a user of a 64-bit system you must do the following, you must open a terminal and run:

sudo dpkg --add-architecture i386

We update the system.

sudo apt-get update
sudo apt-get dist-upgrade

And we install dependencies:

sudo apt-get install libcairo2:i386 libgl1-mesa-glx:i386

Now we can unzip the newly downloaded file and run the DrGeo.sh file with:

./DrGeo.sh

And that's it, the application is already installed.


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