2.2.7. imageData


Purpose

Generate PNG image from data in given column (or 2D data of overall table).

parent_gray

Usage

> imageData options file[s] 

parent_gray

Options

-l / --label [ all ]
column containing data
-r / --range [ auto ]
data range (min max)
--gap=float / --transparent [ none ]
value to treat as transparent
-d / --dimension [ native ]
data dimension (width height)
--color [ gray ]
color scheme
--invert
invert color scheme
--abs
magnitude of values
--log
log10 of values
--fliplr
flip around vertical axis
--flipud
flip around horizontal axis
--crop
pixels cropped on left, right, top, bottom
-N / --pixelsize
pixel per data point
-x / --pixelsizex
pixel per data point along x
-y / --pixelsizey
pixel per data point along y
--show
show resulting image


parent_gray

Example

Single data column

Suppose we have an ASCIItable that contains a column of two-dimensional data as in » type « below. The additional columns » x « and » y « are not required and not considered either, but correspond to the interpretation of the data sequence based on --dimension 3 2, i.e. 3 points along x for each of two rows along y.
output of imageData
Figure 1: Exemplary output of the » type « column as two-dimensional image.
1 head
x y type
1 1 1
2 1 1
3 1 2
1 2 1
2 2 3
3 2 0

With
> imageData --label type --pixelsize 10 --dimension 3 2
the output shown in Figure 1 results.

Two-dimensional data array

For an ASCIItable that directly contains a two-dimensional representation of a data field, such as
output of imageData
Figure 2: Exemplary output of the 8 by 7 data array as (distorted) image.
0 head
-1    0 0 0 0 0 0 0
-0.33 0 0 2 0 2 0 0
0.33  0 0 0 0 0 0 0
1     0 0 0 2 0 0 0
1.67  0 1 0 0 0 1 0
2.33  0 0 2 2 2 0 0
3     0 0 0 0 0 0 0

the processing with
> imageData --pixelsizex 10 --pixelsizey 15 --color bluered --invert --range -1 3
yields the output shown in Figure 2.
Topic attachments
I Attachment Action Size DateSorted ascending Who Comment
image_type.pngpng image_type.png manage 114 bytes 01 May 2015 - 01:58 PhilipEisenlohr output of imageData
face.pngpng face.png manage 370 bytes 01 May 2015 - 17:55 PhilipEisenlohr output of imageData
Topic revision: r6 - 09 Dec 2021, FranzRoters


  • News
14 Sep 2020
CMCn2020 & DAMASK user meeting to be hosted at Max-Planck-Institut für Eisenforschung (cancelled)
22 Aug 2020
Release of first preview version of DAMASK 3
19 Feb 2020
DAMASK made it to the Advanved Engineering Materials Hall of Fame
26 Mar 2019
DREAM.3D 6.5.119
(released 2019/03/22) comes with a DAMASK export filter
25 Mar 2019
Release of version v2.0.3
21 Jan 2019
DAMASK overview paper finally published with full citation information available
01 Dec 2018
DAMASK overview paper now online
17 Sep 2018
CMCn2018 & DAMASK user meeting to be hosted at Max-Planck-Institut für Eisenforschung
22 May 2018
Release of version v2.0.2
01 Sep 2016
CMCn2016 & DAMASK user meeting to be hosted at Max-Planck-Institut für Eisenforschung
25 Jul 2016
Release of version v2.0.1
08 Mar 2016
Release of version v2.0.0
22 Feb 2016
New webserver up and running
09 Feb 2016
Migrated code repository from Subversion to GitLab
17 Dec 2014
Release of revision 3813
14 May 2014
Release of revision 3108
02 Apr 2014
Release of revision 3062
16 Oct 2013
Release of revision 2689
15 Jul 2013
Release of revision 2555
15 Feb 2013
Release of revision 2174
13 Feb 2013
Doxygen documentation
16 Dec 2012
Powered by MathJax rendering
23 Nov 2012
Release of revision 1955
15 Nov 2012
Release of revision 1924
01 Nov 2012
Updated sidebar
30 Oct 2012
Significant website updates and content extensions


This site is powered by FoswikiCopyright by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding DAMASK? Send feedback
§ Imprint § Data Protection