Tuesday, May 14, 2013

Hatching - Annotation

Hatch pattern use to show the material of 2D objects

Boundary

An enclosed area form by line, polyline or arc
You only can apply a hatch pattern to a boundary



By default it cannot be open

Pattern


Solid: One tone color

Apply from Tool Palettes

View tab > Palettes panel > Tool Palettes


Drag & drop the hatch pattern from the Tool Palettes
You also can click the pattern from the Tool Palettes, then pick a boundary in the drawing

Hatching

Home tab > Draw panel > Hatch


A Hatch Creation ribbon appear


Boundary
Pick Point: Pick an internal point (default setting)
Select Boundary Objects: A single and closed object

Properties


Hatch color: You can override the current color
Background Color: Specifies a background color for hatch pattern
Hatch Transparency: You can override the original value


When you adjust the transparency of the hatch pattern, background color will follow

Hatch Angle: Relative angle for the hatch pattern


Hatch Pattern Scale: Control the space between lines in the pattern


If you working in a layout with annotative scale
Expand the Properties panel, select Relative To Paper Space
The scale you set will based on the viewport scale

Hatch Layer Override: Override the current layer


Hatch Origin


Use Current Origin: Start from the drawing origin (0,0)

Boundary Extents: Bottom-Left, Bottom-Right, Top-Left, Top-Right, Center
Set Origin: Start any point in the drawing

Hatch Options


Associative: Default setting. Hatch associated with the boundary, the boundary changes, the pattern will follow

Match Properties: Match properties of a hatch pattern, apply in another boundary


It's useful if the hatch pattern is send from somebody, it's not available in the hatch library
You can copy & paste to the drawing, then use match properties to apply this hatch pattern to any boundary

Create Separate Hatches: By default is not separate, you must click to highlight it to make it separate

Separate hatches mean that no matter you pick how many boundaries within the same command, it remain separate in individual boundary

Island Detection:
Boundaries inside hatch boundaries are island

 

You only can use Pick Point for the Island Detection

Gap Tolerance: Set the maximum size of gap that can be ignored for the hatch boundary
Default value is 0, that mean boundary must be enclose and no gap

Gradient

Display a selection of gradient fills, either tint, shade or a smooth transition between 2 colors

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