Lines
Visualizing a set of lines as cylinders with variable size, e.g., used to display characters (no Frame connector)
Library
Modelica/Mechanics/MultiBody/Visualizers/Internal
Description
With model Lines a set of dynamic lines is definedthat are located relatively to frame_a. Every lineis represented by a cylinder. This allows, e.g., to define simple shaped3-dimensional characters. Note, if the lines are fixed relatively to frame_a,it is more convenient to use model Visualizers.FixedLines.An example for dynamic lines is shown in the following figure:
The two letters "x" and "y" are constructed with 4 linesby providing the following data for input variable lines
lines = {[0, 0; 1, 1],[0, 1; 1, 0],[1.5, -0.5; 2.5, 1],[1.5, 1; 2, 0.25]}Via vectors n_x and n_y a two-dimensionalcoordinate system is defined. The points defined with variablelines are with respect to this coordinate system. For example"[0, 0; 1, 1]" defines a line that starts at {0,0} and ends at {1,1}.The diameter and color of all line cylinders are identicaland are defined by parameters.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_R | R | Orientation object to rotate the world frame into the object frame | FromModelica('Modelica.Mechanics.MultiBody.Frames.Orientation') | |
mo_r | r | Position vector from origin of world frame to origin of object frame, resolved in world frame | Vector of size 3 | |
mo_r_lines | r_lines | Position vector from origin of object frame to the origin of 'lines' frame, resolved in object frame | Vector of size 3 | |
mo_n_x | n_x | Vector in direction of x-axis of 'lines' frame, resolved in object frame | Vector of size 3 | |
mo_n_y | n_y | Vector in direction of y-axis of 'lines' frame, resolved in object frame | Vector of size 3 | |
mo_lines | lines | List of start and end points of cylinders resolved in an x-y frame defined by n_x, n_y, e.g., {[0,0;1,1], [0,1;1,0], [2,0; 3,1]} | Matrix | |
mo_diameter | diameter | Diameter of the cylinders defined by lines | Scalar | |
mo_color | color | Color of cylinders | Vector of size 3 | |
mo_specularCoefficient | specularCoefficient | Reflection of ambient light (= 0: light is completely absorbed) | Scalar | |
mo_n | n | Number of cylinders | Scalar |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo__nmodifiers | Number of Modifiers | Specifies the number of modifiers | Number | |
mo__modifiers | Modifiers | Add new modifier | Structure | |
mo__modifiers/varname | Variable name | Cell of strings | 'R_rel' | |
mo__modifiers/attribute | Attribute | Cell of strings | 'start' | |
mo__modifiers/value | Value |