Module Point Cloud Attribute Calculator

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] / 1000

The following operators are available for the formula definition:
+ Addition
- Subtraction
* Multiplication
/ Division
^ power
abs(x) - absolute value
sqr(x) - square
sqrt(x) - square root
ln(x) - natural logarithm
log(x) - base 10 logarithm
exp(x) - exponential
pow(x, y) - power with mantisse x and exponent y
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
gt(x, y) - the result is 1.0, if x is greater than y else 0.0
x > y - the result is 1.0, if x is greater than y else 0.0
lt(x, y) - the result is 1.0, if x is less than y, else 0.0
x < y - the result is 1.0, if x is less than y, else 0.0
eq(x, y) - the result is 1.0, if x equals y, else 0.0
x = y - the result is 1.0, if x equals y, else 0.0
mod(x, y) - returns the floating point remainder of x/y
ifelse(c, x, y) - if condition c is not 0.0 the result is x, else y
int(x) - integer part of floating point value x
pi() - returns the value of Pi

Author: Volker Wichmann (c) 2010-213, LASERDATA GmbH
Specification: grid
Menu: Shapes|Point Clouds|Tools

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Point Cloud	Point Cloud (input)	`PC_IN`	Input	-
Output	Result (*)	Point Cloud (optional output)	`PC_OUT`	Output	-
Options	Formula	Text	`FORMULA`	-	Default: f1+f2
	Output Field Name	Text	`NAME`	-	Default: Calculation
	Field data type	Choice	`TYPE`	-	Available Choices: [0] 1 bit [1] 1 byte unsigned integer [2] 1 byte signed integer [3] 2 byte unsigned integer [4] 2 byte signed integer [5] 4 byte unsigned integer [6] 4 byte signed integer [7] 4 byte floating point [8] 8 byte floating point Default: 7
	Use NoData	Boolean	`USE_NODATA`	Check this in order to include NoData points in the calculation.	Default: 0
(*) optional

Command-line

Usage: saga_cmd pointcloud_tools 10 [-PC_IN <str>] [-PC_OUT <str>] [-FORMULA <str>] [-NAME <str>] [-TYPE <str>] [-USE_NODATA <str>]
  -PC_IN:<str>     	Point Cloud
	Point Cloud (input)
  -PC_OUT:<str>    	Result
	Point Cloud (optional output)
  -FORMULA:<str>   	Formula
	Text
	Default: f1+f2
  -NAME:<str>      	Output Field Name
	Text
	Default: Calculation
  -TYPE:<str>      	Field data type
	Choice
	Available Choices:
	[0] 1 bit
	[1] 1 byte unsigned integer
	[2] 1 byte signed integer
	[3] 2 byte unsigned integer
	[4] 2 byte signed integer
	[5] 4 byte unsigned integer
	[6] 4 byte signed integer
	[7] 4 byte floating point
	[8] 8 byte floating point
	Default: 7
  -USE_NODATA:<str>	Use NoData
	Boolean
	Default: 0