... I thought I might briefly mention my own polygon clipping and offsetting library - Clipper. While Clipper is primarily designed for polygon clipping operations, it does polygon offsetting too. The library is open source freeware written in Delphi, C++ and C#. It has a very unencumb...

...rowser", which shows the list of databases. (Side note: The terms "schema" and "database" are synonymous in this program.) Right-click on one of the existing databases and click "Create Schema...". This will launch a wizard that will help you create a database. If you'd prefer to do it in SQL, en...

... Use the convenience methods .first() and .last(): MyModel.objects.filter(blah=blah).first() They both swallow the resulting exception and return None if the queryset returns no objects. These were added in Django 1.6, which was released in Nov 2013. ...

...快速做出各种定制界面的表格。 Download Grid Control Source and Demo - 311.9 KB Preface This grid is the work of thousands of hours of squinting at pixels, hunting memory leaks, adding new features, fixing new bugs and beating the code by force of will into a form that is as f...

...快速做出各种定制界面的表格。 Download Grid Control Source and Demo - 311.9 KB Preface This grid is the work of thousands of hours of squinting at pixels, hunting memory leaks, adding new features, fixing new bugs and beating the code by force of will into a form that is as f...

...快速做出各种定制界面的表格。 Download Grid Control Source and Demo - 311.9 KB Preface This grid is the work of thousands of hours of squinting at pixels, hunting memory leaks, adding new features, fixing new bugs and beating the code by force of will into a form that is as f...

...快速做出各种定制界面的表格。 Download Grid Control Source and Demo - 311.9 KB Preface This grid is the work of thousands of hours of squinting at pixels, hunting memory leaks, adding new features, fixing new bugs and beating the code by force of will into a form that is as f...

...快速做出各种定制界面的表格。 Download Grid Control Source and Demo - 311.9 KB Preface This grid is the work of thousands of hours of squinting at pixels, hunting memory leaks, adding new features, fixing new bugs and beating the code by force of will into a form that is as f...

I've been using log4j for quite a while now and I usually use this at the top of the log4j.xml (probably just like many others and according to Google this is the way to do it): ...

... As of jQuery version 1.1.3, event.which normalizes event.keyCode and event.charCode so you don't have to worry about browser compatibility issues. Documentation on event.which event.which will give 1, 2 or 3 for left, middle and right mouse buttons respectively so: $('#element').mousedow...