![]() ![]() And if you hover the mouse cursor over the mode selection buttons you will get a tool tip that reminds you what the keyboard keys are. Similarly, the Control key can be used to Subtract, and Shift+Control can be used to get an Intersect. With your first rectangle on the screen, hold down the Shift key while you draw the second one and you will get an Added rectangle. Draw a first rectangle on the screen, then use the keyboard to help. All of this is pretty straightforward, but you need to do this carefully. Subtract means that any area that overlaps between the the first rectangle and the second one will be removed from the first rectangle for your selection, and Intersect will only leave the overlap between two rectangles as the selection. They will all stay selected, and you will see the “marching ants” outline on the screen. ![]() If you have Add selected, drawing a second one means you have two rectangles on the image, and if you need to you can add more as well. If you have Replace selected and you draw a second rectangle, the first one disappears. For the Rectangle Select, this begins with the Mode selection, which can be Replace, Add, Subtract, and Intersect. If you recall from our previous discussion, there is also a Tool Options menu that appears on the bottom of the left-hand sidebar, and displays different options depending on the tool that is selected. It will draw a rectangle on the screen, and at the four corners there will be rectangles that function as handles to adjust the sizing of your rectangle. To use the Rectangle Select, just click and drag your cursor. So you can see that being able to select is very powerful. For instance, you can change the hue of an area, or apply a brush stroke, or whatever, and it will only apply within the selected area. Second, you can use selection to constrain other operations. First, you can use them to then crop an image. You use them frequently for a variety of reasons. They are Rectangle, Ellipse, and Free Select. There are three Selection tools at the top, and they are tools you use very frequently. This is the canvas on top of which you will be working, and I am going to suggest White to make it easy to see as we go to work Selection Tools You have four choices for the fill: Foreground Color, Background Color, White, and Transparency. The color space can be left at RGB (Red-Green-Blue). You can access this by using the Templates to get different Print sizes. Different media require different choices, in other words. If you were going to do something to be printed, I would change from pixels per inch to dots per inch, and increase the resolution to 300 for both X and Y. The resolution is set for 72 pixels per inch, which is fine for computer screens. We’ll be using this kind of new image a lot so get used to this. Note that to see the Advanced Options you would need to click the dropdown. ![]() To do this, go to File–>New, and you will get this dialog box: I recommend one that is colored, but lightly, so that you can see what is going on. And a good way to practice these is to create a simple image to practice on. Tools are of course not used in isolation, they are used with other features like Layers, Paths, and Brushes, but we need to build up our knowledge one piece at a time. For my purposes I will stay with the defaults for these tutorials since that is what you will see. The Sidebar is just so you can have frequently used tools available with minimum effort, so customize this is you wish. You can also access any tool at any time by going to the Tools menu, which is useful for tools that are less often used. GIMP ToolboxĪny tool with the Eyeball icon next to it is displayed on the Sidebar, and you can add or remove just by clicking the tool. GIMP has a Toolbox located at Edit–>Preferences–>Toolbox where you add or remove tools as needed. First thing to note is that these are not the only tools available. We have briefly mentioned them previously, but now it is time to dig a little more deeply. ![]()
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