Easy Mod_Rewrite with PHP tutorial

I have been playing around with Apaches mod_rewrite on my other site http://www.2big2send.com and i must admit its a whole lot easier than i first thought.. Here is a quick guide for most general use: Create a new file in your main directory (public_html for cPanel or httpdocs for plesk – not sure about other ones) called .htaccess (Dont forget the ‘.’ dot before the name – you may already have one of these file, thats ok, just edit it and follow the guide...

Camera tool in Excel

The Camera tool allows you to select a range of cells and literally insert a live picture into a spreadsheet. Any change to the range of cells will automatically update the image. The Camera tool allows you to select a range of cells and literally insert a live picture into a spreadsheet.  Any change to the range of cells will automatically update the image. In order to use the Camera tool, we must first add it to the Command Bar.  There is a well documented tutorial on...

Libvirt and the virtualization shell

Now that I've covered some of the architecture of libvirt, let's look at some examples of the use of the libvirt virtualization API. I start by using an application called virsh (virtualization shell), which is built on top of libvirt. This shell permits use of much of the libvirt functionality but in an interactive (shell-based) fashion. In this section, I demonstrate some of the aspects of VM manipulation...

AutoCAD Drawing Limits

  Drawing Limits In the previous tutorial, drawing limits were mentioned while explaining the use of the zoom all command. When the zoom all command is chosen, AutoCAD zooms to the extent of the user defined limits. Limits can be thought of as the extent of the drawing area. The AutoCAD drawing area is, in theory, infinite. As long as you...

Using Polylines

  Polylines Polylines draw lines similar to the line command we used in lesson 2, but are a lot more powerful. Let's start by drawing the same plot of land we drew in lesson 2, but this type using polylines. The polyline command is situated on the 'draw' toolbar. 1) Choose the polyline command 2) For a start point, enter 50,50 3) ...

Help With Modify Commands

Basic Modify Commands Here we'll cover the modify tools, which give us control over simple shapes we have created. As the name suggests - we can modify drawing elements. This is what the modify toolbar looks like (if you don't see it, check the modify box in 'view - toolbars'): The modify tools (from left to right): Erase, Copy, Mirror,...

Hatching in AutoCAD

  Hatching Hatching is used to add shaded patterns to objects and shapes within an Autocad drawing. Hatch patterns can be used to indicate a material to be used, such as a concrete hatch. Alternatively it could be used to make an area of a drawing stand out. A foundation detail with the Autocad default AR-CONC hatch pattern applied. The hatch command can be found on...

Drawing with Object Snap

  Object Snap Object Snap tools are available from the Object Snap toolbar ( View - Toolbars to enable). They allow for precise drawing within Autocad. For example, a rectangle could be drawn from the exact endpoint of an existing line by simply selecting the 'Snap to Endpoint' tool, or we could draw a line from the centrepoint of a circle using the 'Snap to Center' tool. In many cases, object snap avoids the need to draw construction ...

Working with Blocks

  Blocks A block in Autocad is a collection of all of the line and arc entities that create an object, 'moulded' together to make one selectable object. Selecting one particular entity (such as a midpoint of a line for example) will select all objects contained within the block. They can be moved, rotated, mirrored etc and will always be treated...

The Extend Command

Introduction AutoCAD drawings are rarely completed simply by drawing lines, circles etc. Most likely you will need to Modify these basic drawing objects in some way in order to create the image you need. AutoCAD provides a whole range of modify tools such as Move, Copy, Rotate and Mirror. As you can see, the command names are easily understandable. However, the way these commands work is not always obvious. This tutorial is designed to show you how all of the Modify commands work. If...