This is a brief tutorial I created for how to use Inkscape to create an Australian Flag in vector graphics.
1. Download Inkscape from http://inkscape.org/download/?lang=en . I am using the Windows Installer version in this demo.
2. Install Inkscape and start the application.
3. The default page size is A4, I like to change the resolution to 720px x 360px. (A 2 x 1 flag)
Select File, Properties and set the Custom Size to width 720 Height 360 and make sure the Units are set to px (pixels).
4. Adding a rectangular shape.
Select the rectangle shape (above) or press F4 to go into rectangle mode.
Click and drag the cursor to create a rectangle of the approximate size you want. You do not need to be too accurate at this point.
You can also create circles in the same way by selecting the circle/elipses/arcs tool.
5. Selecting and correcting the rectangle created.
Select the select and transform button (above) or press F1 to go into select mode.
Click on the rectangle or shape you want to modify.
Note that the item has stretch marks around it. You can manually grab these and manipulate the image if you want.
However I want to be precise in this case so I will manually enter the values I want in the X-Y-W-H fields. (Starting X, Starting Y, Width and Height)
In my case I want the rectangle to be 1/2 the height, which is 180 px so I enter the values 0, 180, 720 and 180.
Note you can use this process to resize any element.
Make sure the rectangle is selected and you are in select mode (F1).
To set the colour you can simply select the desired colour from the colour ribbon on the bottom.
But again I want to be precise, so I can also double click on the Fill colour in the botton left corner.
This will bring up the Fill and Stroke panel below, into which you can enter exact colour values.
You can also set the stroke or outline colour and stroke style or outline width with the other tabs.
You can use the same process to colour any element, but you must ungroup elements before colourising.
Click the X in the top right to close the Fill and Stroke window when you are done.
6. Adding a graphic
Graphic elements can be found all over the web. Look for files in SVG format. I have included some at the bottom of this page. Also most flags on wikipedia are stored in the SVG format and can be easily downloaded.
To import an existing SVG file select File, Import from the menu and open the file on your PC in SVG format
7. Removing unrequired elements from your graphic
If you do not require all of the elements from your imported image, you can ungroup and remove.
Select the element, select Object, Ungroup - or right click and select Ungroup.
You should be able to see the outline of each of the elements once ungrouped.
Now individually select the unrequired components and press the Delete key - or right click and select Delete
Some elements may be grouped within groups, so you may need to use the ungroup function more than once.
8. Resizing and centering graphic elements
If you have a complex graphic element, such as a kangaroo, I would suggest using the lock symbol before resizing.
The lock symbol will ensure that any resizing is equal vertically and horzontally
Click on the element you want to resize. Click on the Lock symbol between the H and W values.
Either manually enter the required size, or drag the resize arrows around the object.
To center a graphic element you can use the Align and Distribute object icon.
Select the element, click the Align and Distribute object icon
Select the desired alignment (normally centered on vertical and horizonal axis)
9. Other important commands
When you select an element, you can rotate or flip the element with the first four icons listed above
You can also select which elements are displayed above other elements with the next four icons.
You can also manually manipulate an element with Object Transform from the menu for fine control.
10. Saving your flag.
I like to save my flag designs as both SVG and PNG format.
The SVG format is good for making changes, while the PNG format is better for posting on a web page.