Push Down

The Grid Editor | Tools | Push Down command in the grid editor decreases grid node values within the brush. Click the Grid Editor | Tools | Push Down command to enable Push Down mode. The cursor changes to a crosshair with a circle to visually indicate the Brush size . The Push Down command button is highlighted in yellow to indicate Push Down mode as well.

 

Click once to decrease values within the brush circle. Click and drag to continuously decrease grid values as the cursor moves across the grid. The grid Nodes, Labels, Color Fill, and Contours update automatically as you use the Push Down command.

 

Press ESC or click another Grid Editor | Tools command to end Push Down mode.

 

Tool Options

The Brush size controls the area around the cursor that is affected by the Push Down tool. The Density controls how the Push Down tool decreases the grid vales in the brush area. The Pressure controls how much the grid values are affected.

 

Brush Size

The Brush size tool option controls the diameter of the tool. The Brush size specifies the diameter in number of grid cells in the X direction. The Brush size setting is located in the tools options bar at the top of the grid editor window. There are three methods for changing the Brush size:

The cursor circle increases or decreases size with the Brush size setting and zoom level. The Brush size setting is saved and persistent across multiple grid editor windows.

 

A Brush size of 1 makes the diameter of the brush equal to the horizontal spacing of one grid cell.

A Brush size of 3 makes the diameter of the brush equal to the horizontal spacing of three grid cells.

 

Density

The Density tool option controls the weighting of the tool effect radially from the center of the brush. The cursor location (where the crosshair is located) receives the maximum effect of the selected tool mode. The Density setting is located in the tools options bar at the top of the grid editor window. There are two methods for changing the Density:

The Density setting can be any value between 1 and 100. A Density setting of 1 has maximum "feathering" or blending between the center of the brush and values just outside the brush. A Density setting of 100 applies the tool mode effect to all nodes within the brush equally. The Density setting is saved and persistent across multiple grid editor windows. The default Density setting is 25.

 

These line plots show how Density affects the weighting of the tool mode effect

(y-axis) as distance from the center of the brush increases (x-axis)

 

Pressure

The Pressure tool option controls the speed at which tool effects are applied as the brush moves. The Pressure setting is located in the tools options bar at the top of the grid editor window. There are two methods for changing the Pressure:

The Pressure setting can be any value between 1 and 100. A Pressure setting of 1 applies the tool effect the minimum amount with each click or drag. A Pressure setting of 100 applies the tool effect the maximum amount with each click or drag. The Pressure setting is saved and persistent across multiple grid editor windows. The default Pressure setting is 25.

 

The Push Down tool decreases the Z value by 1% of the Z-range of the grid at the cursor location when Pressure is 100. When the grid is planar, the Push Down tool decreases the Z value by 1% of the diagonal distance of the grid at the cursor location when Pressure is 100. The Pressure changes this amount proportionally. For example when the Pressure is 50, the amount the grid changes under the cursor location is 0.5% of the grid Z range (0.01 x 0.5 = 0.005)

 

Undo

Each click is registered as one operation in the Undo levels list. For example, if you set the Brush size to 1 and click once on five individual grid nodes, you must use the Undo command five times to undo all the changes. However, if you click and drag once across all five grid nodes, you must only use the Undo command once to undo all the changes.

 

 

See Also

Grid Editor

Select - Grid Editor

Brush

Warp

Smooth - Grid Editor

Pull Up

Eraser

Eyedropper