13.1. ANGEL

ANGEL is a computer program for making graphs in the Enhanced PostScript, EPS, format using simple input files. In brief, ANGEL converts files written in the ANGEL computer language, which consists of the minimum order to construct figures from numerical data, to files in PostScript, a page description language created by Adobe Systems. ANGEL is included in the PHITS sources, and therefore EPS files can be obtained in addition to ASCII files from PHITS output, but a stand-alone ANGEL code is sometimes required for off-line plotting and further formatting. The stand-alone ANGEL can be easily compiled using make.ang in /src/ folder as follows.

Listing 13.1.1 Example compilation of ANGEL

make -f make.ang

Please refer to the ANGEL manual for more details.

13.1.1. ANGEL parameters

In order to add ANGEL parameters in tally output, define as

Listing 13.1.2 Example of ANGEL parameter definition

angel = xmin(1.0) ymin(1.3e-8)

Defined parameters are converted to the ANGEL format as

Listing 13.1.3 Example of ANGEL parameter in tally output

p: xmin(1.0) ymin(1.3e-8)

These parameters change the minimum of the horizontal and vertical axes, respectively. The main ANGEL parameters are shown in Table 13.1.1. Please see the ANGEL manual in more detail for other ANGEL parameters.

Table 13.1.1 ANGEL parameters

ANGEL parameter	Explanation
xmin	Minimum of horizontal axis.
xmax	Maximum of horizontal axis.
ymin	Minimum of vertical axis.
ymax	Maximum of vertical axis.
xlin	Change horizontal axis to linear scale.
xlog	Change horizontal axis to logarithmic scale.
ylin	Change vertical axis to linear scale.
ylog	Change vertical axis to logarithmic scale.
xdec	Decimal notation for horizontal axis values.
xexp	Exponential notation for horizontal axis values.
ydec	Decimal notation for vertical axis values.
yexp	Exponential notation for vertical axis values.
cmin	Minimum of color plot.
cmax	Maximum of color plot.
cmnm	Convert cm to nm.
cmum	Convert cm to um.
cmmm	Convert cm to mm.
cmmt	Convert cm to m.
cmkm	Convert cm to km.
nsps	Convert nsec to psec.
nsus	Convert nsec to usec.
nsms	Convert nsec to msec.
nssc	Convert nsec to sec.
scmn	Convert sec to min.
schr	Convert sec to hour.
scdy	Convert sec to day.
scyr	Convert sec to year.
cmap	Specification of colormap name. Example: angel = cmap(phits2). The available colormap names are phits2 and those used in Matplotlib [1]. By adding _r to the colormap name, the color bar can be inverted. Example: angel = cmap(hot_r).
ndis	Usage of discrete color bars and specification of the number of colors. Example: angel = ndis(15).

[1]

10. 4. Hunter, “Matplotlib: A 2D Graphics Environment”, Computing in Science & Engineering, vol. 9, no. 3, pp. 90-95, 2007. Colormap: https://matplotlib.org/stable/users/explain/colors/colormaps.html License: https://matplotlib.org/stable/project/license.html The license is also directly stated in a-main1.f.

Version 2.89 or later changed the default output size from A4 to US letter. If you wish to change the paper size of an output EPS file, use the ANGEL parameters a4us (US letter), a3pp (A3), a4pp (A4), a5pp (A5), b3pp (B3), b4pp (B4), and b5pp (B5). The characters in parentheses indicate the respective paper size.