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- IFF2Scape - Image to Vista Landscape
-
- Usage: iff2scape file.iff file.scape [-x<xoff>][-y<yoff>][-w][-c][-s]
- [-b<base>][-j<step>]
-
- <xoff> == Offset from left side of IFF image to the left side of scape
- <yoff> == Offset from top of IFF image to the top of scape
- w == Make BigVistaPro landscape
- <base> == Offset above sea level of lowest point in landscape
- <step> == Distance between color registers (units will vary with DEM spacing)
- s == smooth
- c == compress
-
- Defaults:
- xoffs = 0
- yoffs = 0
- Regular Vista Landscape
- base = 0
- step = 100
- No smoothing
- No compression
-
- IFF2Scape converts an IFF file into a Vista Landscape by assuming that
- the color register numbers are related to the elevation of the pixel
- (data point). Color register 0 is at <base> units from sea level. Each
- subsequent color register is <step> units above the previous one.
- Below, zsize is the actual size of the unit used for base and step.
- (ie. a step of 100 with 10 ft DEM data will result in elevation steps of
- 360 inches or 30 feet. A base of 500 would be 150 feet.
-
- Typical values: cstep dwidth zsize
- 3 ft 1 ft 0.36 in
- 3 mtr 1 mtr 3.0 cm
- 30 ft 10 ft 3.6 in
- 30 mtr 10 mtr 30.0 cm
- 100 mtr 30 mtr 1.0 mtr
-
- cstep == the actual vertical distance between contour lines.
-
- dwidth == the distance between adjacent dem points. For example, a
- Vista DEM map is 258 points x 258 points, so a dwidth of 1 foot
- would create a Vista DEM covering an area 258 feet x 258 feet.
- 30 meter data creates an area 30 x 258 meters (or 7740 meters)
- by 7740 meters.
-
- zsize == the actual change in elevation with a one point change in the
- DEM elevation value.
-
- Note that IFF2Scape clips a 258 x 258 DEM from a larger IFF file, with
- one pixel in the IFF image resulting in 1 DEM data point.
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