Color Parameters
| Color Parameters | ||
|---|---|---|
| Parameter | JSON Parameter | Description |
| B | Background | Background |
| BW | ForceBlack | Black and White |
| GS | GreyScale | Greyscale |
Color Palette
The color palette differs depending on the input format and, for AutoCAD, background color.
Background
| PARAMETER | B or BAC[KGROUND] |
|---|---|
| Purpose | This parameter defines whether the background of the output image is black, white |
| or another color. The color table is based on the color table for the input format. | |
| So DWG/DXF, DWF and DGN all have different color table definitions. Each format has | |
| Black as 0 and White as 255. For AutoCAD 250 through 254 are shades of gray. | |
| Values | 0: Black |
| 1: Red | |
| 2: Yellow | |
| 3: Green | |
| 4: Cyan | |
| 5: Blue | |
| 6: Magenta | |
| 254: Grey (AutoCAD) | |
| 255: White (Default) | |
| Black | |
| Red | |
| Yellow | |
| Green | |
| Cyan | |
| Blue | |
| Magenta | |
| White | |
| Grey/Gray | |
| Examples | -B 1 |
| -B BLACK | |
| JSON | {“Background” : “Yellow”} {“Background” : 2} |
| Aliases | -BLACK : same as -B 0 |
| -WHITE : same as -B 255 | |
| -GREY: same as -B 254 | |
| Use | With all graphic formats |
Black and White
| PARAMETER | BW |
|---|---|
| Purpose | This parameter selects Black and White only mode. Output will be Black on a White background |
| Example | -BW |
| JSON | {“ForceBlack” : true} {“Mono” : “”} |
| Values | |
| 0 | Normal Color mode |
| 1 or nothing | Black and White only |
| Default | 0 - Normal color mode |
| Alias | -MONO (for “Monochrome”) |
| Use | All formats |
Greyscale
| PARAMETER | GREYSCALE |
|---|---|
| Purpose | This parameter selects Greyscale mode. Output will be shades of Grey on a White background |
| Formula | The conversion from RGB to Gray is: GREY = .3 * Red + .59 * Green + .11 * Blue |
| Example | -GS |
| JSON | {“GreyScale” : true} |
| Alternate Spelling | -GREYSCALE |
| -GRAYSCALE | |
| Default | 0 - Normal color mode |
| Alias | -GS |
| -GREY | |
| -GRAY | |
| Use | All formats |