generate-relief-igor Command
Generates hillshading relief for the current map view using Igor's hillshading method. This method renders a softer hillshade which tries to minimize effects on other map features.
Usage
generate-relief-igor [parameters]
All parameters are optional:
- bounds: specifies the boundaries of the area to generate the relief.
- color: specifies the color of the shading. The default color is black (#000000). The parameter accepts the color in HTML form (like blue or #0000ff).
- intensity: the intensity of the color alpha value. The parameter is a number larger than zero: the higher the value - the higher intensity. The default value is 1.
- sun-altitude: altitude of the Sun expressed as an angle above the horizon. This affects how the shades will fall on the terrain. The parameter accepts values from 0 to 90 degrees. The default value is 25 degrees.
- sun-azimuth: azimuth angle of the Sun expressed in the degrees to the east of north. The default value is -45 degrees so that southeastern slopes are in the shade. This follows the common convention.
Examples
generate-relief-igor color=blue
Generates a hillshading image with a blue tint.
generate-relief-igor
save-source 3 relief.png
Generates a hillshading image and then saves it to a relief.png file. Note that the map source index may vary in your case.
