This function uses the altitude and azimuth properties to specify the sun's positionĪ few of the classification methods include natural breaks, equal interval, defined interval, quantile, and standard deviation. The hill shade tool in MapInfo Pro can be used to mimic the sun's effects like illumination, intensity, shadows on DEMs. A hillshade is a grayscale 3D representation of the surface, with the sun's relative position taken into account for shading the image. The Dem in this example has a resolution of 30 m and represents an area in the North west of Sulawesi, Indonesia.Ī stretched display when used along with hillshading helps in seeing the relief very well. When you open a Dem in MapInfo Pro by default it is displayed in Pseudocolour, this is a stretched display using a histogram equalize algorithm. For example a common rendering technique is called Hypsometric tinting whereby deep greens are used for valley bottoms and as one travels up-slope the colour changes from browns to creams and white on mountain tops.
A common way to render elevation data is by using the green, brown, white colour elevation ramp.
Dems can be coloured in different ways which makes visual interpretations easier.
