To better understand Morphic, I’ve started writing a small application that can draw shapes and connect them.
A pdf documenting what I’ve done is at
https://github.com/StephanEggermont/MorphicDraw
Code is on smalltalkhub,
StephanEggermont/MorphicDraw
Suggestions, fixes and improvements are welcome
Stephan
Hi,
Hi,
Hi again,
TMM (Teapot, Mustache, Mongo) is a simple to use Web/CRUD framework built on Pharo.
Hi,
I cleaned up and released some demo code I put together for a Smalltalk user group meeting. The code was extracted from a project I’ve been working on. It also uses Magritte3, Voyage, and ZincSSO, but that’s too many pieces to include in the web-app-stack name
I was working in Pharo3, so I took the opportunity to upgrade to Pharo4. I had no problems with Pharo4 itself, but I had some minor issues with the updated Teapot and VoyageMongo versions:
- VoyageMongo - <mongoContainer> pragma is now expected on class-side, not the instance-side
- Teapot - To read/parse template files on each request (which is convenient during development) I had intercepted an internal API. This API changed slightly, which needed a simple fix, but it was hard to find
I also decided to use a “git” repository. This turned out to be one of the hardest parts, but I think it was worth the effort.
To try TMM, follow the instructions at:
https://github.com/yannij/TMM
Enhancements are welcome, but I don’t quite know how this git workflow will pan out. I’ve already got a few changes to port over:
- a more integrated file upload example
- an email/passwordHash stored in the User object in mongo.
—
Yanni
I pushed some Aconcagua extensions to http://smalltalkhub.com/mc/SeanDeNigris/AconcaguaAddOns/main/ One part consists of tiny (so far) Aconcagua models of various domains - Time*, Money, and Weight at the moment. The other is the Aconcagua-Magritte package. This gives you MAMeasureDescription, which represents an Aconcagua Measure. It mostly acts like a number field mapped to its amount. You just have to tell it which unit to use to convert the amount number into a Measure. Example usage: MAMeasureDescription new accessor: #replacementPrice; label: 'Replacement Price'; unit: AmDollar new; yourself Then, you can type 100 in a Magritte form and "100 dollars" will be saved to the model. Enjoy!
The VirtualGPU is a simple DSL/framework for parallel algorithms.
In this quick video I try to show the performance and the simplicity of this framework, by using as an example simple vectorial and image processing operations.
The structure of this DSL is inspired by the VirtualCPU made by Igor Stasenko et al, and numerical programming such as Matlab and GNU Octave.
This DSL works by composing simple OpenCL kernels.
HoneyGinger is a fluid dynamics and visualization library which can simulate moves of liquid caused by obstacles and visualize refraction by estimating angles of water surface from distribution of pressure.
https://www.youtube.com/watch?v=jl6OSWUXh14
This is rendered by Jun4Pharo in conjunction with HoneyGinger, a fluid
dynamics simulator written in pure Smalltalk 🙂
Tomohiro Oda
For the runtime optimizer (Sista) I am working on, Eliot Miranda and I added new operations (we call them unsafe operations) in Cog’s interpreter and JIT compiler. Before testing them directly by running the optimizer and looking for crashes, I wrote tests to check that each unsafe operation works as expected. I’d like to discuss a bit the design of those tests in this post.
I’ll discuss a specific operation in the post, but all the unsafe operations are handled in a similar way. The operation I chose to described is called USmiLessOrEqual. This operation corresponds to <= but assumes the 2 operands are SmallIntegers, else the behavior of the instruction is undefined. The optimizer uses it only when it can ensure that the two operands are SmallIntegers.
What to test
To test USmiLessOrEqual, one could think I’m going to take an important range of integers and…
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