Doodleback

The Unclip tool will simply undo the Clipping that was applied to a path. It can only be applied to Clip paths. Note that because Clip paths retain their original Snapping Points, you don’t have to tap the visible section of a Clip path to “unclip” it. Touching any Snapping Point will work. Here’s an example.

The Change Color Component tool lets you change one of the Red, Green, Blue, or Alpha (transparency) components of one of the Paint Layers of a path. Every color is defined by these three components. The top Option Button of the tool allows you to select which layer to operate on: Bottom, Middle, or Top. The next option button allows you to select which component (again: Red, Green, Blue, Alpha) to change. [Read More]

The Change Paint tool will replace all the existing paint layers of the selected path with the layers in the currently selected paint set. Unless the path has been Scaled (discussed below), the only option available when changing the paint on a path is whether to completely replace its Paint layers with the currently selected paint layers or to change only the colors of the paint layers. When changing only the colors, the other attribures of the layers, such as stroke width, join type, cap type, etc. [Read More]

The Sample Colors tool lets you import the Paint Layers of an existing path into your palette (the list of saved Color Sets). Simply tap a path, and you’ll be presented with a dialog asking if you wish to import the Paint Layers. This might be necessary, for instance, if you’ve imported another model into your existing model. In that case, you might not have the Paint Layers of the imported paths in your current Palette. [Read More]

The Circle tool lets you construct a circle in three different ways. You can define the center first and then a circumference point You can define a circumference point first and then the center or you can define the circle with two opposite circumference points. You use the second Option Button to control this construction method. The third option button allows you to constrain the second point so that it’s perfectly horizontally aligned or vertically aligned with the first or so that it positioned along a vector you define using the Mark Button. [Read More]

The Circle Arc tool allows you to create these types of shapes: You first need to define the circle on which the shape will be based. For that you used the second Option Button to choose: Center to circumference point Circumference point to center Circumference point to opposite circumference point You use the Mark Button to define the second point (based on your selection above). [Read More]

The Circle by Tangents tools allows you to construct a Circle that is tangent to two line lines that you define. Here’s an example: The Line Segments in the image above were there before the circle was constructed, but you could use any four points to define the tangent lines. There are no construction options for this tool, only the Mark Button which is used to define the two tangents lines. [Read More]

The Inscribe/Circumscribe Circle tool either inscribes a circle in a triangle or circumscribes a circle about a triangle. This tool can only be applied to triangles. You toggle between inscribed and circumscribed using the second Option Button. There is one thing you should note though about the effect of Paint Attributes though. If the triangle you’re inscribing/circumscribing has a thick stroke width, the circle may overlap the corners or interior of the triangle. [Read More]

The Circular Ring tool is similar to the Circle tool except that instead of a circle, it creates a circle with a circular hole in the middle, that is, a ring. This means that you have to define not one radius but two. The second Option Button sets the construction method. These construction methods are identical to those for the Circle tool except that after you’ve set the initial radius, the second radius is set by moving your finger either further outward (to create the outer radius) or further inward (to create the inner radius). [Read More]

The Circular Ring Sector tool lets you create a pie sliced portion of a Circular Ring like this: You select the center first and then drag outward to define the first radius of the sector and mark it with the Mark Button. You can constrain the location of this circumference point using the Drag Constraint button so that it is aligned with the center point either horizontally, vertically, or along a vector. [Read More]