openscad/BOSL2
1
0
Fork 0
mirror of https://github.com/revarbat/BOSL2.git synced 2025-08-31 00:20:00 +02:00
Code Issues Projects Releases Wiki Activity

Improve docs for path_sweep

Browse Source 
make echo_matrix handle non-numeric entries gracefully and add
separator arg.
This commit is contained in:
Adrian Mariano
2022-02-21 20:45:57 -05:00
parent c280513253
commit 77a78bf8bc
3 changed files with 57 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
linalg.scad
View File

@@ -64,25 +64,36 @@ function is_matrix_symmetric(A,eps=1e-12) =
// Function&Module: echo_matrix()
// Usage:
// echo_matrix(M, [description=], [sig=], [eps=]);
// dummy = echo_matrix(M, [description=], [sig=], [eps=]),
// echo_matrix(M, [description], [sig], [sep], [eps]);
// dummy = echo_matrix(M, [description], [sig], [sep], [eps]),
// Description:
// Display a numerical matrix in a readable columnar format with `sig` significant
// digits. Values smaller than eps display as zero. If you give a description
// it is displayed at the top.
function echo_matrix(M,description,sig=4,eps=1e-9) =
// it is displayed at the top. You can change the space between columns by
// setting `sep` to a number of spaces, which will use wide figure spaces the same
// width as digits, or you can set it to any string to separate the columns.
// Values that are NaN or INF will display as "nan" and "inf". Values which are
// otherwise non-numerica display as two dashes. Note that this includes lists, so
// a 3D array will display as a list of dashes.
// Arguments:
// M = matrix to display, which should be numerical
// description = optional text to print before the matrix
// sig = number of digits to display. Default: 4
// sep = number of spaces between columns or a text string to separate columns. Default: 1
// eps = numbers smaller than this display as zero. Default: 1e-9
function echo_matrix(M,description,sig=4,sep,eps=1e-9) =
let(
horiz_line = chr(8213),
matstr = _format_matrix(M,sig=sig,eps=eps),
matstr = _format_matrix(M,sig=sig,sep=sep,eps=eps),
separator = str_join(repeat(horiz_line,10)),
dummy=echo(str(separator,is_def(description) ? str(" ",description) : ""))
[for(row=matstr) echo(row)]
)
echo(separator);
module echo_matrix(M,description,sig=4,eps=1e-9)
module echo_matrix(M,description,sig=4,sep,eps=1e-9)
{
dummy = echo_matrix(M,description,sig,eps);
dummy = echo_matrix(M,description,sig,sep,eps);
}