Copyright Goodheart-Willcox Co., Inc. 464 AutoCAD and Its Applications—Advanced Above the ramp is the Gradient Type drop-down list. The setting in the drop-down list controls the pattern of the gradient ramp. See Figure 17-27. The default pattern is linear. This results in a typical pattern similar to the ramp display. The options are described as follows: • Linear asymmetrical. This gradient type is similar to the default linear type, but the transition between colors is not symmetrical. • Box. The transition of colors is in the shape of a square. • Diagonal. The transition of colors is linear, but rotated on the surface. • Light normal. The intensity of the light source determines where the transition takes place. The right side of the ramp corresponds to the highest intensity of light and the left side of the ramp is equal to no light. • Linear. This is the default. It is a smooth transition from one node to the next. • Camera normal. The angle between the camera direction and the surface normal controls how the pattern is displayed. The left side of the ramp is 0° between the normal and the camera viewpoint. The right side is 90° between the normal and the camera viewpoint. • Pong. This gradient is a rotated linear transition, similar to the diagonal type, but it pivots about the corner of a box and reverses in the middle of the pattern. • Radial. Colors are arranged in a circular pattern similar to a target. • Spiral. The gradient sweeps about a central point similar to the movement on a radar screen. • Sweep. This gradient is similar to the spiral type, but the center of the sweep is at a corner instead of in the center. Also, the gradient does not repeat like the pong type. • Tartan. This gradient resembles a plaid pattern. It is very similar to the box type. Select the type of gradient Color of selected node Set the position of the selected node Selected node Check to apply noise Noise settings Figure 17-26. Adjusting the properties of a gradient map.