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- HATCH Menu: POLYG
- ==============================================================================
- Hatches a polygon.
-
- 1. (POINT) first reference point for hatch base line
- 2. (POINT) second reference point for hatch base line
- 3. (POINT) reference point for hatch direction
- 4. (NUM) hatch angle (0-360)
- 5. (NUM) hatch interval (greater than 0)
- 6. (NUM) shift hatch (greater than 0)
- 7. * (IND) polygon to hatch
- 8. * (Y/N) confirm choice
- 9. * (Y/N) another polygon ? <y>
- (for another hatch: "n")
-
- Description:
- This command sets the hatching type and hatches polygons.
- Pick two points marking a reference line on the polygon which will serve as
- the reference for the hatching angle initial shift. Pick a third point on the
- polygon to indicate direction. The points do not have to be on the polygon
- itself.
- Specify the hatching angle and the distance between the hatch lines. Enter
- a number (greater than 0), specifying the desired interval between hatch-lines
- and the distance of the first hatch-line from the reference (base line).
- Indicate (and confirm) the polygon to be hatched. You are then asked whether
- you wish to hatch another polygon or specify another hatch pattern for the
- same polygon.
- If you wish to hatch another polygon using the same hatch pattern you will be
- prompted only to indicate the new polygon.
- If you select to hatch the same polygon with another hatch pattern you will
- only be prompted for new hatch parameters. You may hatch it repeatedly,
- varying the angle, the spacing, and the shift, thus creating complex patterns.
- Hatch lines slow down the redrawing of the model, so they will only be redrawn
- upon request via the \refh command.
- Hatched areas are regarded as polygons. You may not select an individual
- hatch-line (e.g., for updating its color). A hatched area may be broken into
- several hatched entities if the number of lines within it exceeds a given
- limit.
-
- Example: \hatch (point 1) (point 2) (point 3) 45 0.2 0 (ind)
-
- Result: The indicated polygon is hatched with lines at 45 to the base line (as
- defined by point 1 and point 2), with a 0.2 unit interval (in real dimensions)
- between the hatch-lines and with no shift value (shift=0).