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- WALK Menu:VIEW / SOLID
- =============================================================================
- Modifies the eye position by a relative displacement.
- (A nested command in the geometric module only.)
-
- 1.If in geometric module:
- 1. (Y/N) option: on sphere? (y), around axis? (n) <y>
- if reply is `y', if in perspective mode:
- 2. (CHAR) (persp.) walking direction (b,f,u,d,l,r)
- if reply is `y', if in parallel mode:
- 2. (CHAR) (paral.) walking direction (u-up, d-down, l-left, r-right)
- for options `b' and `f', if in perspective mode:
- 3. (NUM) walking distance
- for options `u' and `d':
- 3. (NUM) angle (in degrees)
- for options `l' and `r':
- 3. (NUM) angle (+/- 0-360 deg.)
- if reply to prompt 1 is `n':
- 2. (CHAR) axis (x,y or z)
- 3. (NUM) rotation angle (+/- 0-360 deg.)
-
-
- 2.If in solid module:
- if in perspective mode:
- 1. (CHAR) (persp.) walking direction (b,f,u,d,l,r)
- if reply is `y', if in parallel mode:
- 1. (CHAR) (paral.) walking direction (u-up, d-down, l-left, r-right)
- for options `b' and `f', if in perspective mode:
- 2. (NUM) walking distance
- for options `u' and `d':
- 2. (NUM) angle (in degrees)
- for options `l' and `r':
- 2. (NUM) angle (+/- 0-360 deg.)
-
- 3.If in the solid module and current display mode is `o'(off).
- 1.* (CHAR) (persp.) walking direction (b,f,u,d,l,r)
- if reply is `y', if in parallel mode:
- 1.* (CHAR) (paral.) walking direction (u-up, d-down, l-left, r-right)
- for options `b' and `f', if in perspective mode:
- 2.* (NUM) walking distance
- for options `u' and `d':
- 2.* (NUM) angle (in degrees)
- for options `l' and `r':
- 2.* (NUM) angle (+/- 0-360 deg.)
-
- Description:
-
- This command modifies the eye position by a relative displacement.
- Its behavior is determined by the current module.
-
- In the geometric module only you are asked whether you wish to move
- the eye position around a sphere or about an axis. If you select the
- former or if you are in the solid module, you state the walking direction
- (u=up, d=down, b=back, f=forward, l=left, r=right) and specify
- the displacement or angle.
-
- Back and forward displacements are given in units of length (according
- to the current unit), relative to the original eye position. (These
- options are only applicable in perspective mode).
-
- Left, right, up and down displacements are given in degrees. These
- displacements are performed on an imaginary sphere whose center is
- the target and whose surface represents the eye location. While left
- and right movement may be specified by any positive or negative value
- between 0 and 360, the up and down movement is limited to 89
- (the poles) from the XY plane.
-
-
- If you select to rotate the eye about an axis while in the geometric
- module, state the axis and give a rotation angle.
-
- If you are currently in the geometric module or in any of the display
- modes set by the \dsmod command in the solid module, the screen
- will be redrawn in the appropriate display mode. If you are in
- the solid module and the display mode is currently "off",
- the new view will not be displayed until a new display mode is specified,
- enabling you to execute a series of manipulations before the screen
- is redrawn.
-