## pointcloud_tools_10-Point_Cloud_Attribute_Calculator Point Cloud Attribute Calculator

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#### Detailed Description

The Point Cloud Attribute Calculator calculates a new attribute based on existing attributes and a mathematical formula. Attribute fields are addressed by the character 'f' (for 'field') followed by the field number (i.e.: f1, f2, ..., fn) or by the field name in square brackets (e.g.: [Field Name]).Examples:sin(f1) * f2 + f3[intensity] / 1000The following operators are available for the formula definition:

 + Addition - Subtraction * Multiplication / Division abs(x) Absolute Value mod(x, y) Returns the floating point remainder of x/y int(x) Returns the integer part of floating point value x sqr(x) Square sqrt(x) Square Root exp(x) Exponential pow(x, y) Returns x raised to the power of y x ^ y Returns x raised to the power of y ln(x) Natural Logarithm log(x) Base 10 Logarithm pi() Returns the value of Pi sin(x) Sine cos(x) Cosine tan(x) Tangent asin(x) Arcsine acos(x) Arccosine atan(x) Arctangent atan2(x, y) Arctangent of x/y min(x, y) Returns the minimum of values x and y max(x, y) Returns the maximum of values x and y gt(x, y) Returns true (1), if x is greater than y, else false (0) x > y Returns true (1), if x is greater than y, else false (0) lt(x, y) Returns true (1), if x is less than y, else false (0) x < y Returns true (1), if x is less than y, else false (0) eq(x, y) Returns true (1), if x equals y, else false (0) x = y Returns true (1), if x equals y, else false (0) and(x, y) Returns true (1), if both x and y are true (i.e. not 0) or(x, y) Returns true (1), if at least one of both x and y is true (i.e. not 0) ifelse(c, x, y) Returns x, if condition c is true (i.e. not 0), else y rand_u(x, y) Random number, uniform distribution with minimum x and maximum y rand_g(x, y) Random number, Gaussian distribution with mean x and standard deviation y

#### How to cite

SAGA (2018). pointcloud_tools_10-Point_Cloud_Attribute_Calculator, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/b290b3ad-ab7a-4497-8e12-2523f0139797

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